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1

A 3D-3C Reflection Seismic Survey and Data Integration to Identify the  

Open Energy Info (EERE)

D-3C Reflection Seismic Survey and Data Integration to Identify the D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description The Soda Lake geothermal field is an ideal setting to test the applicability of the 3D-3C reflection seismic method because: it is a producing field with a great deal of geologic and drilling data already available; it is in an alluvial valley where the subsurface structures that carry the geothermal fluids have no surface manifestations; and, there are downhole geophysical logs of fractures and permeable zones that can be used to ground-truth the new data.

2

Seismic Reflection Data and Conceptual Models for Geothermal...  

Open Energy Info (EERE)

Reflection Data and Conceptual Models for Geothermal Development in Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Seismic Reflection...

3

Seismic Reflection Data and Conceptual Models for Geothermal Development in  

Open Energy Info (EERE)

Seismic Reflection Data and Conceptual Models for Geothermal Development in Seismic Reflection Data and Conceptual Models for Geothermal Development in Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Seismic Reflection Data and Conceptual Models for Geothermal Development in Nevada Abstract Seismic reflection data were collected in two geothermalareas in Nevada to support geologic structural models andgeothermal well targeting. The data were integrated withsurface mapping, well results, and other geophysical data inconceptual geologic models in both areas. Faults wereinterpreted from reflection data based on reflector offsetsand apparent fault surface reflectors dipping away from therange front. Interpreted faults at Blue Mt., where severalwells have been drilled, correlated with well entries.Subsequent well targeting based on the conceptualstructural model

4

Data:1af230d5-5e65-4802-be70-3d3c816a1548 | Open Energy Information  

Open Energy Info (EERE)

af230d5-5e65-4802-be70-3d3c816a1548 af230d5-5e65-4802-be70-3d3c816a1548 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Public Service Co of NM Effective date: 2013/03/01 End date if known: Rate name: 12 Cogeneration and Small Power Production TOU Secondary Distribution (1A, 1B, 2A, 2B, 3B, 3C, 10A, & 10B) Sector: Description: This rate is available to qualifying co-generation and small power production facilities which operate in parallel with the Company's system and which demonstrate Qualifying Facility status in accordance with Federal Energy Regulatory Commission Rules and Regulations 18 CFR Part 292, Subpart B, Sections 292.201 through 292.207. This Schedule sets out the Company's energy purchase rates and the applicable rates and charges for specified services provided by the Company pursuant to 17.9.570 NMAC. Service will be furnished in accordance with the Company's Rules and Regulations, the New Mexico Public Regulation Commission's Rules and Regulations as applicable and any amendments or modifications thereto. For QFs rated at 10 kW or less, the provisions of Rule 570.14 and any amendments or modifications thereto apply. Regulations as amended, are a part of this Schedule as if fully written herein. These documents are available at the Company's offices and are on file with the NMPRC.

5

Piedmont seismic reflection study: A program integrated with tectonics to probe the cause of eastern seismicity  

Science Conference Proceedings (OSTI)

A new tectonic model of the Appalachian orogen indicates that one, not two or more, terrane boundaries is present in the Piedmont and Blue Ridge of the central and southern Appalachians. This terrane boundary is the Taconic suture, it has been transported in the allochthonous Blue Ridge/Piedmont crystalline thrust nappe, and it is repeated at the surface by faulting and folding associated with later Paleozoic orogenies. The suture passes through the lower crust and lithosphere somewhere east of Richmond. It is spatially associated with seismicity in the central Virginia seismic zone, but is not conformable with earthquake focal planes and appears to have little causal relation to their localization.

Glover, L. III; Coruh, C.; Costain, J.K.; Bollinger, G.A. (Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Dept. of Geological Sciences)

1992-03-01T23:59:59.000Z

6

Feasibility study of the seismic reflection method in Amargosa Desert, Nye County, Nevada  

Science Conference Proceedings (OSTI)

The US Geological Survey (USGS) working under an Interagency agreement with the Department of Energy is engaged in a broad geoscience program to assess and identify a potential repository for high level nuclear waste at Yucca Mountain, Nye County, Nevada. The USGS program, referred to as the Yucca Mountain Project, or YMP, consists of integrated geologic, hydrologic and geophysical studies which range in nature from site specific to regional. This report is an evaluation of different acquisition methods for future regional seismic reflection studies to be conducted in the vicinity of Yucca Mountain, located in the southwestern corner of the Nevada Test Site (NTS). In January 1988, field studies were conducted to investigate the feasibility of using the common-depth point (CDP) seismic reflection method to map subsurface geological horizons within the Amargosa Desert, Nye County, Nevada. The goal of the field study was to investigate which seismic reflection method(s) should be used for mapping shallow to lower-crustal horizons. Therefore, a wide-variety of field acquisition parameters were tested, included point versus linear receiver group arrays; Vibroseis (service and trademark of Conoco, Inc.) versus explosive sources; Vibroseis array patterns; and Vibroseis sweep and frequency range. 31 refs., 33 figs., 8 tabs.

Brocher, T.M.; Hart, P.E.; Carle, S.F.

1990-11-01T23:59:59.000Z

7

REPROCESSING OF SHALLOW SEISMIC REFLECTION DATA TO IMAGE FAULTS NEAR A HAZARDOUS WASTE SITE ON THE OAK RIDGE RESERVATION, TENNESSEE  

SciTech Connect

Shallow seismic reflection data from Bear Creek Valley on the Oak Ridge Reservation demonstrates that spectral balancing and tomographic refraction statics can be important processing tools for shallow seismic data. At this site, reprocessing of data which had previously yielded no useable CMP stacked sections was successful after application of these processing techniques.

DOLL, W.E.

1997-12-30T23:59:59.000Z

8

LANDSTREAMER/GIMBALED GEOPHONE ACQUISITION OF HIGH RESOLUTION SEISMIC REFLECTION DATA NORTH OF THE 200 AREAS HANFORD SITE  

SciTech Connect

Landstreamer Seismic Reflection Vender Report by Confederated Tribes of the Umatilla Indian Reservation and Montana Tech of the University of Montana, collected in FY2009 under CHPRC Contract 35789.

REPASKY TE; HYDE ER; LINK CA; SPEECE MA

2009-11-18T23:59:59.000Z

9

Reflection seismic profiling in Wabash Valley fault system in southwestern Indiana  

SciTech Connect

During the summer of 1988 common-depth-point (CDP) reflection seismic profiling was initiated by ARPEX in southwestern Indiana in the Wabash Valley fault system. A 2.2-im (1.4-mi) east-west profile was shot across the Mt. Vernon graben in Posey County. Minihole shooting in 21-m (68.9-ft) patterns using 3.4 kg (7.5 lb) of seismic explosives distributed in five 3-m (10-ft) holes provided the energy source. Most shotholes were made with a reversible air-driven penetrating tool that was effective in dense clays. The 12-geophone array length was 43 m (141 ft), and the nominal far-trace offset was 2.1 km (7,000 ft). A 48-channel recording yielded 24-CDP coverage at 11-m (36-ft) intervals. Data were enhanced by gapped deconvolution, bandpass filtering, and CDP stack. The strongest and most continuous reflections at 0.75 and 1.6 sec are associated with the New Albany Shale (Devonian-Mississippian) and Eau Claire Formation (Cambrian), respectively. Within the Mt. Vernon graben and east of the Spenser Consolidated oil field, the depth to Eau Claire Formation apparently increases by approximately 60 m (197 ft) over a horizontal distance of 1.4 km (0.9 mi). Minor faulting east of the Spencer Consolidated field appears to be synthetic to the Hovey lake fault, which bounds the eastern side of the Mt. Vernon graben. Tentative interpretations of faulting and weak reflections from depths greater than 4.5 km (15,000 ft) may be clarified by additional data processing and by additional seismic profiling planned by ARPEX.

Rene, R.M.; Hester, N.C.; Stanonis, F.L. (Indiana Univ., Bloomington (USA))

1989-08-01T23:59:59.000Z

10

Interpretation of shallow crustal structure of the Imperial Valley, California, from seismic reflection profiles  

DOE Green Energy (OSTI)

Eight seismic reflection profiles (285 km total length) from the Imperial Valley, California, were provided to CALCRUST for reprocessing and interpretation. Two profiles were located along the western margin of the valley, five profiles were situated along the eastern margin and one traversed the deepest portion of the basin. These data reveal that the central basin contains a wedge of highly faulted sediments that thins to the east. Most of the faulting is strike-slip but there is evidence for block rotations on the scale of 5 to 10 kilometers within the Brawley Seismic Zone. These lines provide insight into the nature of the east and west edges of the Imperial Valley. The basement at the northwestern margin of the valley, to the north of the Superstition Hills, has been normal-faulted and blocks of basement material have ''calved'' into the trough. A blanket of sediments has been deposited on this margin. To the south of the Superstition Hills and Superstition Mountain, the top of the basement is a detachment surface that dips gently into the basin. This margin is also covered by a thick sequence sediments. The basement of the eastern margin consists of metamorphic rocks of the upper plate of the Chocolate Mountain Thrust system underlain by the Orocopia Schist. These rocks dip to the southeast and extend westward to the Sand Hills Fault but do not appear to cross it. Thus, the Sand Hills Fault is interpreted to be the southern extension of the San Andreas Fault. North of the Sand Hills Fault the East Highline Canal seismicity lineament is associated with a strike-slip fault and is probably linked to the Sand Hills Fault. Six geothermal areas crossed by these lines, in agreement with previous studies of geothermal reservoirs, are associated with ''faded'' zones, Bouguer gravity and heat flow maxima, and with higher seismic velocities than surrounding terranes.

Severson, L.K.

1987-05-01T23:59:59.000Z

11

High resolution seismic imaging of Rainier Mesa using surface reflection and surface to tunnel tomography  

SciTech Connect

In the interpretation of seismic data to infer properties of an explosion source, it is necessary to account for wave propagation effects. In order to understand and remove these propagation effects, it is necessary to have a model. An open question concerning this matter is the detail and accuracy which must be present in the velocity model in order to produce reliable estimates in the estimated source properties. While it would appear that the reliability of the results would be directly related to the accuracy of the velocity and density models used in the interpretation, it may be that certain deficiencies in these models can be compensated by the and amount of seismic data which is used in the inversion. The NPE provided an opportunity to test questions of this sort. In August 1993, two high resolution seismic experiments were performed in N-Tunnel and on the surface of Rainier Mesa above it. The first involved a surface-to-tunnel imaging experiment with sources on the surface and receivers in tunnel U12n.23 about 88 meters west of the NPE. It was possible to estimate the apparent average velocity between the tunnel and the surface. In a separate experiment, a high resolution reflection experiment was performed in order to image the lithology in Rainier Mesa. Good quality, broad band, reflections were obtained from depths extending into the Paleozoic basement. A high velocity layer near the surface is underlain by a thick section of low velocity material, providing a nonuniform but low average velocity between the depth of the NPE and the surface.

Majer, E.L.; Johnson, L.R.; Karageorgi, E.K.; Peterson, J.E.

1994-06-01T23:59:59.000Z

12

Integrated Reflection Seismic Monitoring and Reservoir Modeling for Geologic CO2 Sequestration  

Science Conference Proceedings (OSTI)

The US DOE/NETL CCS MVA program funded a project with Fusion Petroleum Technologies Inc. (now SIGMA) to model the proof of concept of using sparse seismic data in the monitoring of CO{sub 2} injected into saline aquifers. The goal of the project was to develop and demonstrate an active source reflection seismic imaging strategy based on deployment of spatially sparse surface seismic arrays. The primary objective was to test the feasibility of sparse seismic array systems to monitor the CO{sub 2} plume migration injected into deep saline aquifers. The USDOE/RMOTC Teapot Dome (Wyoming) 3D seismic and reservoir data targeting the Crow Mountain formation was used as a realistic proxy to evaluate the feasibility of the proposed methodology. Though the RMOTC field has been well studied, the Crow Mountain as a saline aquifer has not been studied previously as a CO{sub 2} sequestration (storage) candidate reservoir. A full reprocessing of the seismic data from field tapes that included prestack time migration (PSTM) followed by prestack depth migration (PSDM) was performed. A baseline reservoir model was generated from the new imaging results that characterized the faults and horizon surfaces of the Crow Mountain reservoir. The 3D interpretation was integrated with the petrophysical data from available wells and incorporated into a geocellular model. The reservoir structure used in the geocellular model was developed using advanced inversion technologies including Fusion's ThinMAN{trademark} broadband spectral inversion. Seal failure risk was assessed using Fusion's proprietary GEOPRESS{trademark} pore pressure and fracture pressure prediction technology. CO{sub 2} injection was simulated into the Crow Mountain with a commercial reservoir simulator. Approximately 1.2MM tons of CO{sub 2} was simulated to be injected into the Crow Mountain reservoir over 30 years and subsequently let 'soak' in the reservoir for 970 years. The relatively small plume developed from this injection was observed migrating due to gravity to the apexes of the double anticline in the Crow Mountain reservoir of the Teapot dome. Four models were generated from the reservoir simulation task of the project which included three saturation models representing snapshots at different times during and after simulated CO{sub 2} injection and a fully saturated CO{sub 2} fluid substitution model. The saturation models were used along with a Gassmann fluid substitution model for CO{sub 2} to perform fluid volumetric substitution in the Crow Mountain formation. The fluid substitution resulted in a velocity and density model for the 3D volume at each saturation condition that was used to generate a synthetic seismic survey. FPTI's (Fusion Petroleum Technologies Inc.) proprietary SeisModelPRO{trademark} full acoustic wave equation software was used to simulate acquisition of a 3D seismic survey on the four models over a subset of the field area. The simulated acquisition area included the injection wells and the majority of the simulated plume area.

John Rogers

2011-12-31T23:59:59.000Z

13

Application of advanced seismic reflection imaging techniques to mapping permeable zones at Dixie Valley, Nevada. Final technical report  

DOE Green Energy (OSTI)

Multifold seismic reflection data from the Dixie Valley geothermal field in Nevada were reprocessed using a nonlinear optimization scheme called simulated annealing to model subsurface acoustic velocities, followed by a pre-stack Kirchhoff migration to produce accurate and detailed depth-migrated images of subsurface structure. In contrast to conventional processing techniques, these methods account for significant lateral variations in velocity and thus have the potential ability to image steeply-dipping faults and fractures that may affect permeability within geothermal fields. The optimization scheme develops two-dimensional velocity models to within 6% of velocities obtained from well and surface geologic data. Only the seismic data (i.e., first arrival times of P waves) are used to construct the velocity models and pre-stack migration images, and no other a priori assumptions are invoked. Velocities obtained by processing individual seismic tracks were integrated to develop a block diagram of velocities to 2.3 km depth within the Dixie Valley geothermal field. Details of the tectonic and stratigraphic structure allowed three dimensional extension of the interpretations of two dimensional data. Interpretations of the processed seismic data are compared with well data, surface mapping, and other geophysical data. The Dixie Valley fault along the southeastern Stillwater Range Piedmont is associated with a pronounced lateral velocity gradient that is interpreted to represent the juxtaposition of relatively low velocity basin-fill strata in the hanging wall against higher velocity crystalline rocks in the footwall. The down-dip geometry of the fault was evaluated by inverting arrival times from a negative move-out event, which we associate with the dipping fault plane, on individual shot gathers for seismic line SRC-3 for the location and depth of the associated reflection points on the fault.

NONE

1998-02-18T23:59:59.000Z

14

Regional seismic reflection line, southern Illinois Basin, provides new data on Cambrian rift geometry, Hicks Dome genesis, and the Fluorspar Area Fault Complex  

SciTech Connect

Detailed studies of the subsurface structure of the Cambrian Reelfoot rift (RFR) in the Midwestern US provide important insights into continental rifting processes and into the structural fabric of a zone of modern intracratonic seismicity (New Madrid zone). High-quality oil industry seismic reflection data show that in the area of transition between the RFR and the Rough Creek Graben (RCG) the geometry of the Cambrian rift system is that of a half-graben that thickens to the southeast. This contrasts with the northward-thickening half-graben observed to the east in the RCG and with the more symmetric graben to the south in the RFR. An 82.8-km segment of a northwest-southeast seismic reflection profile in southeastern Illinois and western Kentucky shows that near Hicks Dome, Illinois, Middle and Lower Cambrian syn-rift sedimentary rocks occupy about 0.35 s (two-way travel time) on the seismic reflection section (corresponding to a thickness of about 970 m). This stratigraphic interval occupies about 0.45 s (1,250 m) near the Ohio river and is thickest against the Tabb Fault System (TFS) in Kentucky, where it occupies 0.7 s (1,940 m). The seismic data show that in this part of the Cambrian rift the master fault was part of the TFS and that normal displacement on the TFS continued through middle Paleozoic time. The seismic data also provide new information on the late Paleozoic development of Hicks-Dome and the surrounding Fluorspar Area Fault Complex (FAFC) in southeastern Illinois and western Kentucky. A series of grabens and horsts in the FAFC document a late Paleozoic reactivation of the RFR. Comparison of the reflection data with surface mineralization patterns shows that in most cases mineralized graben-bounding faults clearly cut basement or are splays from faults that cut basement.

Potter, C.J.; Goldhaber, M.B.; Taylor, C.D. (U.S. Geological Survey, Denver, CO (United States)); Heigold, P.C. (Illinois State Geological Survey, Champaign, IL (United States))

1992-01-01T23:59:59.000Z

15

4-D High-Resolution Seismic Reflection Monitoring of Miscible CO2 Injected into a Carbonate Reservoir  

SciTech Connect

The objective of this research project was to acquire, process, and interpret multiple high-resolution 3-D compressional wave and 2-D, 2-C shear wave seismic data in the hopes of observing changes in fluid characteristics in an oil field before, during, and after the miscible carbon dioxide (CO{sub 2}) flood that began around December 1, 2003, as part of the DOE-sponsored Class Revisit Project (DOE No.DE-AC26-00BC15124). Unique and key to this imaging activity is the high-resolution nature of the seismic data, minimal deployment design, and the temporal sampling throughout the flood. The 900-m-deep test reservoir is located in central Kansas oomoldic limestones of the Lansing-Kansas City Group, deposited on a shallow marine shelf in Pennsylvanian time. After 30 months of seismic monitoring, one baseline and eight monitor surveys clearly detected changes that appear consistent with movement of CO{sub 2} as modeled with fluid simulators and observed in production data. Attribute analysis was a very useful tool in enhancing changes in seismic character present, but difficult to interpret on time amplitude slices. Lessons learned from and tools/techniques developed during this project will allow high-resolution seismic imaging to be routinely applied to many CO{sub 2} injection programs in a large percentage of shallow carbonate oil fields in the midcontinent.

Richard D. Miller; Abdelmoneam E. Raef; Alan P. Byrnes; William E. Harrison

2007-06-30T23:59:59.000Z

16

4-D High-Resolution Seismic Reflection Monitoring of Miscible CO2 Injected into a Carbonate Reservoir  

SciTech Connect

The objective of this research project is to acquire, process, and interpret multiple high-resolution 3-D compressional wave and 2-D, 2-C shear wave seismic data to observe changes in fluid characteristics in an oil field before, during, and after the miscible carbon dioxide (CO{sub 2}) flood that began around December 1, 2003, as part of the DOE-sponsored Class Revisit Project (DOE DE-AC26-00BC15124). Unique and key to this imaging activity is the high-resolution nature of the seismic data, minimal deployment design, and the temporal sampling throughout the flood. The 900-m-deep test reservoir is located in central Kansas oomoldic limestones of the Lansing-Kansas City Group, deposited on a shallow marine shelf in Pennsylvanian time. After 18 months of seismic monitoring, one baseline and six monitor surveys clearly imaged changes that appear consistent with movement of CO{sub 2} as modeled with fluid simulators.

Richard D. Miller; Abdelmoneam E. Raef; Alan P. Byrnes; William E. Harrison

2005-09-01T23:59:59.000Z

17

Method for inverting reflection trace data from 3-D and 4-D seismic surveys and identifying subsurface fluid and pathways in and among hydrocarbon reservoirs based on impedance models  

DOE Patents (OSTI)

A method is disclosed for inverting 3-D seismic reflection data obtained from seismic surveys to derive impedance models for a subsurface region, and for inversion of multiple 3-D seismic surveys (i.e., 4-D seismic surveys) of the same subsurface volume, separated in time to allow for dynamic fluid migration, such that small scale structure and regions of fluid and dynamic fluid flow within the subsurface volume being studied can be identified. The method allows for the mapping and quantification of available hydrocarbons within a reservoir and is thus useful for hydrocarbon prospecting and reservoir management. An iterative seismic inversion scheme constrained by actual well log data which uses a time/depth dependent seismic source function is employed to derive impedance models from 3-D and 4-D seismic datasets. The impedance values can be region grown to better isolate the low impedance hydrocarbon bearing regions. Impedance data derived from multiple 3-D seismic surveys of the same volume can be compared to identify regions of dynamic evolution and bypassed pay. Effective Oil Saturation or net oil thickness can also be derived from the impedance data and used for quantitative assessment of prospective drilling targets and reservoir management.

He, Wei (New Milford, NJ); Anderson, Roger N. (New York, NY)

1998-01-01T23:59:59.000Z

18

Method for inverting reflection trace data from 3-D and 4-D seismic surveys and identifying subsurface fluid and pathways in and among hydrocarbon reservoirs based on impedance models  

DOE Patents (OSTI)

A method is disclosed for inverting 3-D seismic reflection data obtained from seismic surveys to derive impedance models for a subsurface region, and for inversion of multiple 3-D seismic surveys (i.e., 4-D seismic surveys) of the same subsurface volume, separated in time to allow for dynamic fluid migration, such that small scale structure and regions of fluid and dynamic fluid flow within the subsurface volume being studied can be identified. The method allows for the mapping and quantification of available hydrocarbons within a reservoir and is thus useful for hydrocarbon prospecting and reservoir management. An iterative seismic inversion scheme constrained by actual well log data which uses a time/depth dependent seismic source function is employed to derive impedance models from 3-D and 4-D seismic datasets. The impedance values can be region grown to better isolate the low impedance hydrocarbon bearing regions. Impedance data derived from multiple 3-D seismic surveys of the same volume can be compared to identify regions of dynamic evolution and bypassed pay. Effective Oil Saturation or net oil thickness can also be derived from the impedance data and used for quantitative assessment of prospective drilling targets and reservoir management. 20 figs.

He, W.; Anderson, R.N.

1998-08-25T23:59:59.000Z

19

Seismic Studies  

SciTech Connect

This technical work plan (TWP) describes the efforts to develop and confirm seismic ground motion inputs used for preclosure design and probabilistic safety 'analyses and to assess the postclosure performance of a repository at Yucca Mountain, Nevada. As part of the effort to develop seismic inputs, the TWP covers testing and analyses that provide the technical basis for inputs to the seismic ground-motion site-response model. The TWP also addresses preparation of a seismic methodology report for submission to the U.S. Nuclear Regulatory Commission (NRC). The activities discussed in this TWP are planned for fiscal years (FY) 2006 through 2008. Some of the work enhances the technical basis for previously developed seismic inputs and reduces uncertainties and conservatism used in previous analyses and modeling. These activities support the defense of a license application. Other activities provide new results that will support development of the preclosure, safety case; these results directly support and will be included in the license application. Table 1 indicates which activities support the license application and which support licensing defense. The activities are listed in Section 1.2; the methods and approaches used to implement them are discussed in more detail in Section 2.2. Technical and performance objectives of this work scope are: (1) For annual ground motion exceedance probabilities appropriate for preclosure design analyses, provide site-specific seismic design acceleration response spectra for a range of damping values; strain-compatible soil properties; peak motions, strains, and curvatures as a function of depth; and time histories (acceleration, velocity, and displacement). Provide seismic design inputs for the waste emplacement level and for surface sites. Results should be consistent with the probabilistic seismic hazard analysis (PSHA) for Yucca Mountain and reflect, as appropriate, available knowledge on the limits to extreme ground motion at Yucca Mountain. (2) For probabilistic analyses supporting the demonstration of compliance with preclosure performance objectives, provide a mean seismic hazard curve for the surface facilities area. Results should be consistent with the PSHA for Yucca Mountain and reflect, as appropriate, available knowledge on the limits to extreme ground motion at Yucca Mountain. (3) For annual ground motion exceedance probabilities appropriate for postclosure analyses, provide site-specific seismic time histories (acceleration, velocity, and displacement) for the waste emplacement level. Time histories should be consistent with the PSHA and reflect available knowledge on the limits to extreme ground motion at Yucca Mountain. (4) In support of ground-motion site-response modeling, perform field investigations and laboratory testing to provide a technical basis for model inputs. Characterize the repository block and areas in which important-to-safety surface facilities will be sited. Work should support characterization and reduction of uncertainties in inputs to ground-motion site-response modeling. (5) On the basis of rock mechanics, geologic, and seismic information, determine limits on extreme ground motion at Yucca Mountain and document the technical basis for them. (6) Update the ground-motion site-response model, as appropriate, on the basis of new data. Expand and enhance the technical basis for model validation to further increase confidence in the site-response modeling. (7) Document seismic methodologies and approaches in reports to be submitted to the NRC. (8) Address condition reports.

R. Quittmeyer

2006-09-25T23:59:59.000Z

20

Seismic CD  

NLE Websites -- All DOE Office Websites (Extended Search)

SEISMIC CD Table of Contents INTRODUCTION Background Resource Findings and Recovery Timeline Oil Program ADIS Overview Gas Program ADIS Overview SEISMIC TECHNOLOGY DEVELOPMENT...

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Estimating Oceanic Turbulence Dissipation from Seismic Images  

Science Conference Proceedings (OSTI)

Seismic images of oceanic thermohaline finestructure record vertical displacements from internal waves and turbulence over large sections at unprecedented horizontal resolution. Where reflections follow isopycnals, their displacements can be used ...

W. Steven Holbrook; Ilker Fer; Raymond W. Schmitt; Daniel Lizarralde; Jody M. Klymak; L. Cody Helfrich; Robert Kubichek

22

Geophysics I. Seismic Methods  

SciTech Connect

During the past two decades, the technology of geophysics has exploded. At the same time, the petroleum industry has been forced to look for more and more subtle traps in more and more difficult terrain. The choice of papers in this geophysics reprint volume reflects this evolution. The papers were chosen to help geologists, not geophysicists, enhance their knowledge of geophysics. Math-intensive papers were excluded because those papers are relatively esoteric and have limited applicability for most geologists. This volume concentrates on different seismic survey methods. Each of the 38 papers were abstracted and indexed for the U.S. Department of Energy's Energy Data Base.

Beaumont, E.A.; Foster, N.H. (comps.)

1989-01-01T23:59:59.000Z

23

Reflection Survey (Nannini, 1986) | Open Energy Information  

Open Energy Info (EERE)

Reflection Survey (Nannini, 1986) Reflection Survey (Nannini, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey (Nannini, 1986) Exploration Activity Details Location Unspecified Exploration Technique Reflection Survey Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes "seismic analyses" - no indication of active/passive, reflection/refraction, etc. ---> "On the contrary, in areas with little or no volcanic activity, assumptions on the nature, size and characteristics of the source of the thermal anomaly are generally much more difficult and hypothetical. In these circumstances, some useful data can be obtained from accurate seismic analyses, together with a seismotectonic and geodynamic

24

Reflection Survey | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Reflection Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Reflection Survey Details Activities (35) Areas (22) Regions (2) NEPA(3) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Active Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

25

Expanding Conventional Seismic Stratigrphy into the Multicomponent Seismic Domain  

SciTech Connect

Multicomponent seismic data are composed of three independent vector-based seismic wave modes. These wave modes are, compressional mode (P), and shear modes SV and SH. The three modes are generated using three orthogonal source-displacement vectors and then recorded using three orthogonal vector sensors. The components travel through the earth at differing velocities and directions. The velocities of SH and SV as they travel through the subsurface differ by only a few percent, but the velocities of SV and SH (Vs) are appreciably lower than the P-wave velocity (Vp). The velocity ratio Vp/Vs varies by an order of magnitude in the earth from a value of 15 to 1.5 depending on the degree of sedimentary lithification. The data used in this study were acquired by nine-component (9C) vertical seismic profile (VSP), using three orthogonal vector sources. The 9C vertical seismic profile is capable of generating P-wave mode and the fundamental S-wave mode (SH-SH and SV-SV) directly at the source station and permits the basic components of elastic wavefield (P, SH-SH and SV-SV) to be separated from one another for the purposes of imaging. Analysis and interpretations of data from the study area show that incident full-elastic seismic wavefield is capable of reflecting four different wave modes, P, SH , SV and C which can be utilized to fully understand the architecture and heterogeneities of geologic sequences. The conventional seismic stratigraphy utilizes only reflected P-wave modes. The notation SH mode is the same as SH-SH; SV mode means SV-SV and C mode which is a converted shear wave is a special SV mode and is the same as P-SV. These four wave modes image unique geologic stratigraphy and facies and at the same time reflect independent stratal surfaces because of the unique orientation of their particle-displacement vectors. As a result of the distinct orientation of individual mode's particle-displacement vector, one mode may react to a critical subsurface sequence more than the other. It was also observed that P-wave and S-wave do not always reflect from the same stratal boundaries. The utilization of full-elastic seismic wavefield needs to be maximized in oil and gas explorations in order to optimize the search for hydrocarbons.

Innocent Aluka

2008-08-31T23:59:59.000Z

26

The discrete Kalman filtering approach for seismic signals deconvolution  

SciTech Connect

Seismic signals are a convolution of reflectivity and seismic wavelet. One of the most important stages in seismic data processing is deconvolution process; the process of deconvolution is inverse filters based on Wiener filter theory. This theory is limited by certain modelling assumptions, which may not always valid. The discrete form of the Kalman filter is then used to generate an estimate of the reflectivity function. The main advantage of Kalman filtering is capability of technique to handling continually time varying models and has high resolution capabilities. In this work, we use discrete Kalman filter that it was combined with primitive deconvolution. Filtering process works on reflectivity function, hence the work flow of filtering is started with primitive deconvolution using inverse of wavelet. The seismic signals then are obtained by convoluting of filtered reflectivity function with energy waveform which is referred to as the seismic wavelet. The higher frequency of wavelet gives smaller wave length, the graphs of these results are presented.

Kurniadi, Rizal; Nurhandoko, Bagus Endar B. [Departement of Physics Intitut Teknologi Bandung, Jl. Ganesha 10 Bandung (Indonesia)

2012-06-20T23:59:59.000Z

27

Reflection Survey (Laney, 2005) | Open Energy Information  

Open Energy Info (EERE)

Laney, 2005) Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey (Laney, 2005) Exploration Activity Details Location Unspecified Exploration Technique Reflection Survey Activity Date Usefulness useful DOE-funding Unknown Notes Seismic Imaging, Majer, Gritto and Daley. The project objective includes the development and application of active seismic methods for improved understanding of the subsurface structure, faults, fractures lithology, and fluid paths in geothermal reservoirs. While the objective of the work previous to FY2003 was concerned with the detection and location of faults and fractures based on an existing 3-D seismic data set collected at the Rye Patch geothermal reservoir, the current work was aimed at investigating

28

Definition: Reflection Survey | Open Energy Information  

Open Energy Info (EERE)

Reflection Survey Reflection Survey Jump to: navigation, search Dictionary.png Reflection Survey Seismic reflection surveys image the structure of the subsurface through the measurement of the two way travel time of reflected artificially-generated elastic waves.[1] View on Wikipedia Wikipedia Definition Also Known As Seismic Reflection References ↑ http://www.amazon.com/Introduction-Geophysical-Prospecting-Milton-Dobrin/dp/0071004041 Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Reflection_Survey&oldid=598371" Category: Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

29

3D porosity prediction from seismic inversion and neural networks  

Science Conference Proceedings (OSTI)

In this work, we address the problem of transforming seismic reflection data into an intrinsic rock property model. Specifically, we present an application of a methodology that allows interpreters to obtain effective porosity 3D maps from post-stack ... Keywords: Feed-forward neural network, Matlab, Reservoir characterization, Seismic inversion

Emilson Pereira Leite; Alexandre Campane Vidal

2011-08-01T23:59:59.000Z

30

Seismic sources  

SciTech Connect

Apparatus is described for placement in a borehole in the earth, which enables the generation of closely controlled seismic waves from the borehole. Pure torsional shear waves are generated by an apparatus which includes a stator element fixed to the borehole walls and a rotor element which is electrically driven to rapidly oscillate on the stator element to cause reaction forces transmitted through the borehole walls to the surrounding earth. Logitudinal shear waves are generated by an armature that is driven to rapidly oscillate along the axis of the borehole relative to a stator that is clamped to the borehole, to cause reaction forces transmitted to the surrounding earth. Pressure waves are generated by electrically driving pistons that press against opposite ends of a hydraulic reservoir that fills the borehole. High power is generated by energizing the elements at a power level that causes heating to over 150.degree. C. within one minute of operation, but energizing the elements for no more than about one minute.

Green, Michael A. (Oakland, CA); Cook, Neville G. W. (Lafayette, CA); McEvilly, Thomas V. (Berkeley, CA); Majer, Ernest L. (El Cirrito, CA); Witherspoon, Paul A. (Berkeley, CA)

1992-01-01T23:59:59.000Z

31

Engineering Seismic Base Layer for Defining Design Earthquake Motion  

Science Conference Proceedings (OSTI)

Engineer's common sense that incident wave is common in a widespread area at the engineering seismic base layer is shown not to be correct. An exhibiting example is first shown, which indicates that earthquake motion at the ground surface evaluated by the analysis considering the ground from a seismic bedrock to a ground surface simultaneously (continuous analysis) is different from the one by the analysis in which the ground is separated at the engineering seismic base layer and analyzed separately (separate analysis). The reason is investigated by several approaches. Investigation based on eigen value problem indicates that the first predominant period in the continuous analysis cannot be found in the separate analysis, and predominant period at higher order does not match in the upper and lower ground in the separate analysis. The earthquake response analysis indicates that reflected wave at the engineering seismic base layer is not zero, which indicates that conventional engineering seismic base layer does not work as expected by the term 'base'. All these results indicate that wave that goes down to the deep depths after reflecting in the surface layer and again reflects at the seismic bedrock cannot be neglected in evaluating the response at the ground surface. In other words, interaction between the surface layer and/or layers between seismic bedrock and engineering seismic base layer cannot be neglected in evaluating the earthquake motion at the ground surface.

Yoshida, Nozomu [Department of Civil and Environmental Engineering, Tohoku Gakuin University, Tagajo 1-13-1, Miyagi (Japan)

2008-07-08T23:59:59.000Z

32

Seismic Design Expectations Report  

Energy.gov (U.S. Department of Energy (DOE))

The Seismic Design Expectations Report (SDER) is a tool that assists DOE federal project review teams in evaluating the technical sufficiency of the project seismic design activities prior to...

33

Single well seismic imaging of a gas-filled hydrofracture  

SciTech Connect

A single well seismic survey was conducted at the Lost Hills, Ca oil field in a monitoring well as part of a CO2 injection test. The source was a piezoelectric seismic source and the sensors were a string of hydrophones hanging below the source. The survey was processed using standard CMP reflection seismology techniques. A potential reflection event was observed and interpreted as being caused by a near vertical hydrofracture. The radial distance between the survey well and the hydrofracture is estimated from Kirchoff migration using a velocity model derived from cross well seismic tomography. The hydrofracture location imaged after migration agrees with the location of an existing hydrofracture.

Daley, Thomas M.; Gritto, Roland; Majer, Ernest L.

2003-08-19T23:59:59.000Z

34

Assessing Beyond Design Basis Seismic Events and Implications on Seismic  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Assessing Beyond Design Basis Seismic Events and Implications on Assessing Beyond Design Basis Seismic Events and Implications on Seismic Risk Assessing Beyond Design Basis Seismic Events and Implications on Seismic Risk September 19, 2012 Presenter: Jeffrey Kimball, Technical Specialist (Seismologist) Defense Nuclear Facilities Safety Board Topics Covered: Department of Energy Approach to Natural Phenomena Hazards Analysis and Design (Seismic) Design Basis and Beyond Design Basis Seismic Events Seismic Risk Implications - Key Parameters and Insights Conclusions Assessing Beyond Design Basis Seismic Events and Implications on Seismic Risk More Documents & Publications DOE's Approach to Nuclear Facility Safety Analysis and Management Results from Beyond Design Basis Event Pilots Idaho National Laboratory Advanced Test Reactor Probabilistic Risk

35

Naturally fractured tight gas reservoir detection optimization  

SciTech Connect

Research continued on methods to detect naturally fractured tight gas reservoirs. This report discusses 3D-3C seismic acquisition and 3D P-wave alternate processing.

NONE

1995-12-31T23:59:59.000Z

36

Reflection Survey (Majer, 2003) | Open Energy Information  

Open Energy Info (EERE)

Reflection Survey (Majer, 2003) Reflection Survey (Majer, 2003) Exploration Activity Details Location Unspecified Exploration Technique Reflection Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes The goal of this work is to evaluate the most promising methods and approaches that may be used for improved geothermal exploration and reservoir assessment. It is not a comprehensive review of all seismic methods used to date in geothermal environments. This work was motivated by a need to assess current and developing seismic technology that if applied in geothermal cases may greatly improve the chances for locating new geothermal resources and/or improve assessment of current ones. References E. L. Majer (2003) 3-D Seismic Methods For Geothermal Reservoir Exploration And Assessment-Summary

37

Seismic Imaging and Inversion: Application of Linear Theory (2012), Cambridge University Press, co-authored with Bob Stolt  

Science Conference Proceedings (OSTI)

Extracting information from seismic data requires knowledge of seismic wave propagation and reflection. The commonly used method involves solving linearly for a reflectivity at every point within the Earth, but this book follows an alternative approach which invokes inverse scattering theory. By developing the theory of seismic imaging from basic principles, the authors relate the different models of seismic propagation, reflection and imaging - thus providing links to reflectivity-based imaging on the one hand and to nonlinear seismic inversion on the other. The comprehensive and physically complete linear imaging foundation developed presents new results at the leading edge of seismic processing for target location and identification. This book serves as a fundamental guide to seismic imaging principles and algorithms and their foundation in inverse scattering theory and is a valuable resource for working geoscientists, scientific programmers and theoretical physicists.

Weglein, Arthur B.; Stolt, Bob H.

2012-03-01T23:59:59.000Z

38

Seismic Imaging and Monitoring  

SciTech Connect

I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

Huang, Lianjie [Los Alamos National Laboratory

2012-07-09T23:59:59.000Z

39

Seismic Imaging and Monitoring  

SciTech Connect

I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

Huang, Lianjie [Los Alamos National Laboratory

2012-07-09T23:59:59.000Z

40

Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Central Nevada Seismic Zone Region Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Teleseismic-Seismic Monitoring Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Glenn Biasi, Leiph Preston, Ileana Tibuleac (2009) Body Wave Tomography For Regional Scale Assessment Of Geothermal Indicators In The Western Great Basin Retrieved from "http://en.openei.org/w/index.php?title=Teleseismic-Seismic_Monitoring_At_Central_Nevada_Seismic_Zone_Region_(Biasi,_Et_Al.,_2009)&oldid=425640"

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Seismicity and seismic stress in the Coso Range, Coso geothermal...  

Open Energy Info (EERE)

California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Indian...

42

Seismic-Scale Rock Physics of Methane Hydrate  

SciTech Connect

We quantify natural methane hydrate reservoirs by generating synthetic seismic traces and comparing them to real seismic data: if the synthetic matches the observed data, then the reservoir properties and conditions used in synthetic modeling might be the same as the actual, in-situ reservoir conditions. This approach is model-based: it uses rock physics equations that link the porosity and mineralogy of the host sediment, pressure, and hydrate saturation, and the resulting elastic-wave velocity and density. One result of such seismic forward modeling is a catalogue of seismic reflections of methane hydrate which can serve as a field guide to hydrate identification from real seismic data. We verify this approach using field data from known hydrate deposits.

Amos Nur

2009-01-08T23:59:59.000Z

43

Seismic methods for resource exploration in enhanced geothermal systems  

DOE Green Energy (OSTI)

A finite-difference modeling study of seismic wave propagation was conducted to determine how to best investigate subsurface faults and fracture zones in geothermal areas. The numerical model was created based on results from a previous seismic reflection experiment. A suite of fault models was investigated including blind faults and faults with surface expressions. The seismic data suggest that blind faults can be detected by a sudden attenuation of seismic wave amplitudes, as long the fault is located below the receiver array. Additionally, a conversion from P- to S-waves indicates the reflection and refraction of the P-waves while propagating across the fault. The drop in amplitudes and the excitation of S-waves can be used to estimate the location of the fault at depth. The accuracy of the numerical modeling depends on the availability of a priori in situ information (velocity and density) from borehole experiments in the geothermal area.

Gritto, Roland; Majer, Ernest L.

2002-06-12T23:59:59.000Z

44

IPEEE Seismic Insights  

Science Conference Proceedings (OSTI)

This report compiles and summarizes results of the seismic portion of the Individual Plant Examination for External Events (IPEEE) conducted for each U.S. nuclear plant. Utilities can use trends developed from these results -- together with their individual plant-specific results -- to address future seismic issues on a risk-informed basis.

1999-05-20T23:59:59.000Z

45

Seismic Fragility Application Guide  

Science Conference Proceedings (OSTI)

The "Seismic Fragility Applications Guide" provides utilities with in-depth guidelines for performing fragility analysis as part of a seismic probabilistic risk assessment (SPRA). These cost-effective and practical procedures and the resulting SPRA can support risk-informed/performance-based (RI/PB) applications. To download a pdf file of the product description for this report, click here.

2002-12-18T23:59:59.000Z

46

Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Biasi, Et Al., 2008) Biasi, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone Region (Biasi, Et Al., 2008) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Teleseismic-Seismic Monitoring Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Glenn Biasi, Ileana Tibuleac, Leiph Preston (2008) Regional Resource Area Mapping In Nevada Using The Usarray Seismic Network Retrieved from "http://en.openei.org/w/index.php?title=Teleseismic-Seismic_Monitoring_At_Central_Nevada_Seismic_Zone_Region_(Biasi,_Et_Al.,_2008)&oldid=425638" Category: Exploration Activities What links here

47

Property:Geothermal/ProjectDesc | Open Energy Information  

Open Energy Info (EERE)

ProjectDesc ProjectDesc Jump to: navigation, search Property Name Geothermal/ProjectDesc Property Type Text Description Project Description Pages using the property "Geothermal/ProjectDesc" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + The Soda Lake geothermal field is an ideal setting to test the applicability of the 3D-3C reflection seismic method because: it is a producing field with a great deal of geologic and drilling data already available; it is in an alluvial valley where the subsurface structures that carry the geothermal fluids have no surface manifestations; and, there are downhole geophysical logs of fractures and permeable zones that can be used to ground-truth the new data. If the 3D-3C method is successful it will bring a powerful tool into use in the industry to select targets with the permeability, heat, and fluid needed to exploit geothermal resources.

48

NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA | Open  

Open Energy Info (EERE)

NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA Details Activities (1) Areas (1) Regions (0) Abstract: New multifold seismic reflection data from the central Coso Range, eastern California, image brittle faults and other structures in Mesozoic crystalline rocks that host a producing geothermal field. The reflection data were processed in two steps that incorporate new seismic imaging methods: (1) Pwave first arrivals in the seismic data were inverted for subsurface acoustic velocities using a non-linear simulated annealing approach; and (2) 2-D Velocity tomograms obtained from the inversions were

49

Method of migrating seismic records  

DOE Patents (OSTI)

The present invention provides a method of migrating seismic records that retains the information in the seismic records and allows migration with significant reductions in computing cost. The present invention comprises phase encoding seismic records and combining the encoded seismic records before migration. Phase encoding can minimize the effect of unwanted cross terms while still allowing significant reductions in the cost to migrate a number of seismic records.

Ober, Curtis C. (Las Lunas, NM); Romero, Louis A. (Albuquerque, NM); Ghiglia, Dennis C. (Longmont, CO)

2000-01-01T23:59:59.000Z

50

Category:Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

2 subcategories, out of 2 total. A Active Seismic Techniques 2 pages P Passive Seismic Techniques 2 pages Pages in category "Seismic Techniques" The following 2...

51

Methods for generating and shaping a seismic energy pulse. [Primacord explosive under water  

SciTech Connect

A straight piece of Primacord is suspended in water and detonated by a blasting cap. The primary and surface-reflected pulses are combined to shape the seismic signal by choosing the length and depth of the Primacord and the position of the blasting cap. The effects of the bubble or secondary seismic pulses are reduced because of the elongated bubbles generated.

Itria, O.A.

1975-09-30T23:59:59.000Z

52

Seismic Ruggedness of Relays  

Science Conference Proceedings (OSTI)

Relay GERS (Generic Equipment Ruggedness Spectra) provide utilities with generic seismic capability for more than 100 electrical relays most commonly used in nuclear power plants. The data can be used directly for the assessment of relays in the resolution of Unresolved Safety Issue A-46, "Seismic Qualification of Equipment in Operating Nuclear Plants" and for the Individual Plant Evaluation for External Events (IPEEE) for resolution of USNRC severe accident policy issues.

1991-08-01T23:59:59.000Z

53

Spatial Orientation And Distribution Of Reservoir Fractures From Scattered Seismic Energy  

E-Print Network (OSTI)

Expanded details and additional results are presented using a new method (Willis et al, 2003) for determining the reflection and scattering characteristics of seismic energy from subsurface fractured formations. The method ...

Vetri, Laura

2004-01-01T23:59:59.000Z

54

Integrated Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada |  

Open Energy Info (EERE)

Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Integrated Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada Details Activities (2) Areas (1) Regions (0) Abstract: A 3-D surface seismic reflection survey, covering an area of over 3 square miles, was conducted at the Rye Patch geothermal reservoir (Nevada) to explore the structural features that may control geothermal production in the area. In addition to the surface sources and receivers, a high-temperature three-component seismometer was deployed in a borehole at a depth of 3900 ft within the basement below the reservoir, which recorded the waves generated by all surface sources. A total of 1959 first-arrival travel times were determined out of 2134 possible traces. Two-dimensional

55

Magnitude correlations in global seismicity  

Science Conference Proceedings (OSTI)

By employing natural time analysis, we analyze the worldwide seismicity and study the existence of correlations between earthquake magnitudes. We find that global seismicity exhibits nontrivial magnitude correlations for earthquake magnitudes greater than M{sub w}6.5.

Sarlis, N. V. [Solid State Section and Solid Earth Physics Institute, Physics Department, University of Athens, Panepistimiopolis, Zografos GR-157 84, Athens (Greece)

2011-08-15T23:59:59.000Z

56

Vertical Seismic Profiling At Rye Patch Area (Feighner, Et Al., 1999) |  

Open Energy Info (EERE)

Feighner, Et Al., 1999) Feighner, Et Al., 1999) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Vertical Seismic Profiling At Rye Patch Area (Feighner, Et Al., 1999) Exploration Activity Details Location Rye Patch Area Exploration Technique Vertical Seismic Profiling Activity Date Usefulness useful DOE-funding Unknown Notes In December 1997 LBNL obtained a VSP in well 46-28 to determine the seismic reflectivity in the area and to obtain velocity information for the design and potential processing of the proposed 3-D seismic survey Feighner et al. (1998). Because the results of the VSP indicated apparent reflections, TGI proceeded with the collection of 3.0 square miles of 3-D surface seismic data over the Rye Patch reservoir. References M. Feighner, R. Gritto, T. M. Daley, H. Keers, E. L. Majer (1999)

57

Induced seismicity. Final report  

DOE Green Energy (OSTI)

The objective of this project has been to develop a fundamental understanding of seismicity associated with energy production. Earthquakes are known to be associated with oil, gas, and geothermal energy production. The intent is to develop physical models that predict when seismicity is likely to occur, and to determine to what extent these earthquakes can be used to infer conditions within energy reservoirs. Early work focused on earthquakes induced by oil and gas extraction. Just completed research has addressed earthquakes within geothermal fields, such as The Geysers in northern California, as well as the interactions of dilatancy, friction, and shear heating, on the generation of earthquakes. The former has involved modeling thermo- and poro-elastic effects of geothermal production and water injection. Global Positioning System (GPS) receivers are used to measure deformation associated with geothermal activity, and these measurements along with seismic data are used to test and constrain thermo-mechanical models.

Segall, P.

1997-09-18T23:59:59.000Z

58

Reservoir imaging using low frequencies of seismic reflections  

GENNADYGOLOSHUBINand CONNIEVANSCHUYVER, University of Houston, Texas, USA VALERIKORNEEV, Lawrence Berkeley National Laboratory, California, USA

59

Reflection Survey At Coso Geothermal Area (2008) | Open Energy Information  

Open Energy Info (EERE)

At Coso Geothermal Area (2008) At Coso Geothermal Area (2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Coso Geothermal Area (2008) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Reflection Survey Activity Date 2008 Usefulness not indicated DOE-funding Unknown Exploration Basis A reflection survey was done to analyze the brittle upper plate structure revealed by reflection seismic data Notes The relationships between upper crustal faults, the brittle-ductile transition zone, and underlying magmatic features imaged by multifold seismic reflection data are consistent with the hypothesis that the Coso geothermal field, which lies within an extensional step-over between dextral faults, is a young, actively developing metamorphic core complex.

60

Geothermal induced seismicity program plan  

DOE Green Energy (OSTI)

A plan for a National Geothermal Induced Seismicity Program has been prepared in consultation with a panel of experts from industry, academia, and government. The program calls for baseline seismic monitoring in regions of known future geothermal development, continued seismic monitoring and characterization of earthquakes in zones of geothermal fluid production and injection, modeling of the earthquake-inducing mechanism, and in situ measurement of stresses in the geothermal development. The Geothermal Induced Seismicity Program (GISP) will have as its objectives the evaluation of the seismic hazard, if any, associated with geothermal resource exploitation and the devising of a technology which, when properly utilized, will control or mitigate such hazards.

Not Available

1981-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Geophysics II. Tools for seismic interpretation  

SciTech Connect

During the past two decades, the technology of geophysics has exploded. At the same time, the petroleum industry has been forced to look for more and more subtle traps in more and more difficult terrain. The choice of papers in this geophysics reprint volume reflects this evolution. The papers were chosen to help geologists, not geophysicists, enhance their knowledge of geophysics. Math-intensive papers were excluded because those papers are relatively esoteric and have limited applicability for most geologists. This volume concentrates on tools for seismic data interpretation. Each of the 25 papers were abstracted and indexed for the U.S. Department of Energy's Energy Data Base.

Beaumont, E.A.; Foster, N.H. (comps.)

1989-01-01T23:59:59.000Z

62

Geophysics III. Geologic interpretation of seismic data  

SciTech Connect

During the past two decades, the technology of geophysics has exploded. At the same time, the petroleum industry has been forced to look for more and more subtle traps in more and more difficult terrain. The choice of papers in this geophysics reprint volume reflects this evolution. The papers were chosen to help geologists, not geophysicists, enhance their knowledge of geophysics. Math-intensive papers were excluded because those papers are relatively esoteric and have limited applicability for most geologists. This volume concentrates on geologic interpretation of seismic data interpretation. Each of the 21 papers were abstracted and indexed for the U.S. Department of Energy's Energy Data Base.

Beaumont, E.A.; Foster, N.H. (comps.)

1989-01-01T23:59:59.000Z

63

Seismic Analysis of Existing Facilties and Evaluation of Risk...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

* Develop Seismic Equipment List (SEL) * Perform seismic screening - Perform DOEEH-0545 seismic walkdowns - Perform structural and anchorage seismic analysis to DOEEH-...

64

Seismic Design Expectations Report  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Seismic Design Expectations Report Seismic Design Expectations Report March 2010 CD- This Rev of th Se -0 view Module w he overall Cons OFFICE O eismic De C CD-1 was used to dev struction Projec inco OF ENVIRO Standard esign Exp Critical Deci CD-2 M velop the Revie ct Review cond orporated in the ONMENTA Review Pla pectation ision (CD) A C March 2010 ew Plan for the ducted in 2009 e current versio AL MANAG an (SRP) ns Report Applicability D-3 e Oak Ridge Bl 9. Lessons lear on of the Modu GEMENT t (SDER) CD-4 ldg. 3019 60% rned from this r ule. ) Post Ope design review review have be eration w as part een Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental

65

ELASTIC-WAVEFIELD SEISMIC STRATIGRAPHY: A NEW SEISMIC IMAGING TECHNOLOGY  

Science Conference Proceedings (OSTI)

The focus of elastic-wavefield seismic stratigraphy research shifted from onshore prospects to marine environments during this report period. Four-component ocean-bottom-cable (4-C OBC) seismic data acquired in water depths of 2400 to 2500 feet across Green Canyon Block 237 in the Gulf of Mexico were processed and analyzed. The P-P and P-SV images of strata immediately below the seafloor exhibit amazing differences in P-P and P-SV seismic facies. These data may be one of the classic examples of the basic concepts of elastic-wavefield seismic stratigraphy.

Bob A. Hardage

2004-05-06T23:59:59.000Z

66

Seismic scaling laws revisited  

E-Print Network (OSTI)

at fast speed Local energy balance Gc U Dc slip friction i n i Es = U Gc #12; Main result: Energy Mo= DSL3 D S L Moment Seismic energy ES=¿ D S L3 Es Mo Energy moment ratio #12; Thus Es ~ 105 Mo ~ U Summary of Observed Radiated Energy vs Moment log Mo=1.5 Mw9.6 Beroza et al, 2001 #12

Madariaga, Raúl

67

Reflection Survey At Coso Geothermal Area (2001) | Open Energy Information  

Open Energy Info (EERE)

Exploration Activity: Reflection Survey At Coso Geothermal Area (2001) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Reflection Survey Activity Date 2001 Usefulness not indicated DOE-funding Unknown Exploration Basis Look for features that are characteristic of the geothermal producing region not originally seen by imaging the Coso Field using seismic Notes During December of 1999, approximately 32 miles of seismic data were acquired as part of a detailed seismic investigation undertaken by the US Navy Geothermal Program Office. Data acquisition was designed to make effective use of advanced data processing methods, which include Optim's proprietary nonlinear velocity optimization technique and pre-stack Kirchhoff migration. The velocity models from the 2-D lines were combined

68

Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Seismic Techniques Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(10) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

69

Seismic analysis of lattice towers.  

E-Print Network (OSTI)

??In the absence of specific guidelines for the seismic analysis of self-supporting telecommunication towers, designers may be tempted to apply simplified building code approaches to (more)

Khedr, Mohamed Abdel Halim.

1998-01-01T23:59:59.000Z

70

Seismic Design of Reinforced Concrete Mat Foundations  

Science Conference Proceedings (OSTI)

... of building types including high-rise residential towers, healthcare, and ... bearing pressure for transient loads (wind or seismic ... Tower Seismic Force ...

2012-09-17T23:59:59.000Z

71

Crosswell Seismic Tomography | Open Energy Information  

Open Energy Info (EERE)

2013 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Crosswell Seismic Tomography Citation Schlumberger. Crosswell Seismic...

72

Induced Seismicity Impact | Open Energy Information  

Open Energy Info (EERE)

Seismicity Impact Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleInducedSeismicityImpact&oldid612409" Category: NEPA Resources What links...

73

Seismic reconnaissance of the Los Alamos Scientific Laboratory's Dry Hot Rock Geothermal Project area  

DOE Green Energy (OSTI)

Active seismic methods using high-explosive sources and nondestructive energy sources were used to determine seismic velocities, signal detectability, and subsurface geologic structure in the vicinity of the Los Alamos Scientific Laboratory's (LASL) Dry Hot Rock Geothermal Project area. Positions of several faults have been determined. A synthetic seismogram has been created that shows good agreement with recorded reflection records taken near exploratory borehole GT-2.

Kintzinger, P.R.; West, F.G.

1976-07-01T23:59:59.000Z

74

Data Mining for Seismic Exploration  

Science Conference Proceedings (OSTI)

Seismic exploration plays an important role in petroleum industry. It is widely admitted that there are a lot of limitations of conventional data analysis ways in oil and gas industry. Traditional methods in petroleum engineering are knowledge-driven ... Keywords: seismic exploration, data mining, cluster analysis

Zhongbin Ouyang; Jing He; Keliang Zhang

2008-12-01T23:59:59.000Z

75

Induced Seismicity | Open Energy Information  

Open Energy Info (EERE)

Induced Seismicity Induced Seismicity Jump to: navigation, search Contents 1 Geothermal Lab Call Projects for Induced Seismicity 2 Geothermal ARRA Funded Projects for Induced Seismicity Geothermal Lab Call Projects for Induced Seismicity Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":14,"width":"600px","height":"350px","centre":false,"layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"

76

Seismic event classification system  

DOE Patents (OSTI)

In the computer interpretation of seismic data, the critical first step is to identify the general class of an unknown event. For example, the classification might be: teleseismic, regional, local, vehicular, or noise. Self-organizing neural networks (SONNs) can be used for classifying such events. Both Kohonen and Adaptive Resonance Theory (ART) SONNs are useful for this purpose. Given the detection of a seismic event and the corresponding signal, computation is made of: the time-frequency distribution, its binary representation, and finally a shift-invariant representation, which is the magnitude of the two-dimensional Fourier transform (2-D FFT) of the binary time-frequency distribution. This pre-processed input is fed into the SONNs. These neural networks are able to group events that look similar. The ART SONN has an advantage in classifying the event because the types of cluster groups do not need to be pre-defined. The results from the SONNs together with an expert seismologist's classification are then used to derive event classification probabilities. 21 figures.

Dowla, F.U.; Jarpe, S.P.; Maurer, W.

1994-12-13T23:59:59.000Z

77

Micromachined silicon seismic transducers  

SciTech Connect

Batch-fabricated silicon seismic transducers could revolutionize the discipline of CTBT monitoring by providing inexpensive, easily depolyable sensor arrays. Although our goal is to fabricate seismic sensors that provide the same performance level as the current state-of-the-art ``macro`` systems, if necessary one could deploy a larger number of these small sensors at closer proximity to the location being monitored in order to compensate for lower performance. We have chosen a modified pendulum design and are manufacturing prototypes in two different silicon micromachining fabrication technologies. The first set of prototypes, fabricated in our advanced surface- micromachining technology, are currently being packaged for testing in servo circuits -- we anticipate that these devices, which have masses in the 1--10 {mu}g range, will resolve sub-mG signals. Concurrently, we are developing a novel ``mold`` micromachining technology that promises to make proof masses in the 1--10 mg range possible -- our calculations indicate that devices made in this new technology will resolve down to at least sub-{mu}G signals, and may even approach to 10{sup {minus}10} G/{radical}Hz acceleration levels found in the low-earth-noise model.

Barron, C.C.; Fleming, J.G.; Sniegowski, J.J.; Armour, D.L.; Fleming, R.P.

1995-08-01T23:59:59.000Z

78

Seismic event classification system  

DOE Patents (OSTI)

In the computer interpretation of seismic data, the critical first step is to identify the general class of an unknown event. For example, the classification might be: teleseismic, regional, local, vehicular, or noise. Self-organizing neural networks (SONNs) can be used for classifying such events. Both Kohonen and Adaptive Resonance Theory (ART) SONNs are useful for this purpose. Given the detection of a seismic event and the corresponding signal, computation is made of: the time-frequency distribution, its binary representation, and finally a shift-invariant representation, which is the magnitude of the two-dimensional Fourier transform (2-D FFT) of the binary time-frequency distribution. This pre-processed input is fed into the SONNs. These neural networks are able to group events that look similar. The ART SONN has an advantage in classifying the event because the types of cluster groups do not need to be pre-defined. The results from the SONNs together with an expert seismologist's classification are then used to derive event classification probabilities.

Dowla, Farid U. (Castro Valley, CA); Jarpe, Stephen P. (Brentwood, CA); Maurer, William (Livermore, CA)

1994-01-01T23:59:59.000Z

79

Advanced Reservoir Imaging Using Frequency-Dependent Seismic Attributes  

Science Conference Proceedings (OSTI)

Our report concerning advanced imaging and interpretation technology includes the development of theory, the implementation of laboratory experiments and the verification of results using field data. We investigated a reflectivity model for porous fluid-saturated reservoirs and demonstrated that the frequency-dependent component of the reflection coefficient is asymptotically proportional to the reservoir fluid mobility. We also analyzed seismic data using different azimuths and offsets over physical models of fractures filled with air and water. By comparing our physical model synthetics to numerical data we have identified several diagnostic indicators for quantifying the fractures. Finally, we developed reflectivity transforms for predicting pore fluid and lithology using rock-property statistics from 500 reservoirs in both the shelf and deep-water Gulf of Mexico. With these transforms and seismic AVO gathers across the prospect and its down-dip water-equivalent reservoir, fluid saturation can be estimated without a calibration well that ties the seismic. Our research provides the important additional mechanisms to recognize, delineate, and validate new hydrocarbon reserves and assist in the development of producing fields.

Fred Hilterman; Tad Patzek; Gennady Goloshubin; Dmitriy Silin; Charlotte Sullivan; Valeri Korneev

2007-12-31T23:59:59.000Z

80

Reflection Survey (Deangelo, Et Al., 1999) | Open Energy Information  

Open Energy Info (EERE)

Deangelo, Et Al., 1999) Deangelo, Et Al., 1999) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey (Deangelo, Et Al., 1999) Exploration Activity Details Location Unspecified Exploration Technique Reflection Survey Activity Date Usefulness useful DOE-funding Unknown Notes We believe we have demonstrated two sources that can generate S-waves that are appropriate for evaluating geothermal prospects. The first, a vector-explosive package, has never been available to the seismic industry, and the demonstration of its source pe References M. DeAngelo, B.A. Hardage, J. L. Simmons Jr. (1999) Development Of Active Seismic Vector-Wavefield Imaging Technology For Geothermal Applications Retrieved from "http://en.openei.org/w/index.php?title=Reflection_Survey_(Deangelo,_Et_Al.,_1999)&oldid=388218

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al.,  

Open Energy Info (EERE)

9) 9) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Reflection Survey Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes "The seismic reflection profiles of the range front structures are difficult to interpret because of he steep dips and 3-d fault zone geometry, in the-classical paper by Okaya and Thompson (1985) the range-bounding fault is not imaged as they proposed. The reflection seismic studies are the most useful of the geophysical techniques also the most expensive. The reflection data are two-dimensional making structural interpretation complicated for the three-dimensional geometry of the basin so that the other structural studied have been critical in correctly interpreting the seismic profiles. There are many

82

Reflection Survey At Hot Sulphur Springs Area (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Reflection Survey At Hot Sulphur Springs Area (Laney, 2005) Reflection Survey At Hot Sulphur Springs Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Hot Sulphur Springs Area (Laney, 2005) Exploration Activity Details Location Hot Sulphur Springs Area Exploration Technique Reflection Survey Activity Date Usefulness useful DOE-funding Unknown Notes Seismic Imaging, Majer, Gritto and Daley. The project objective includes the development and application of active seismic methods for improved understanding of the subsurface structure, faults, fractures lithology, and fluid paths in geothermal reservoirs. While the objective of the work previous to FY2003 was concerned with the detection and location of faults and fractures based on an existing 3-D seismic data set collected at the

83

Downhole hydraulic seismic generator  

DOE Patents (OSTI)

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole.

Gregory, Danny L. (Corrales, NM); Hardee, Harry C. (Albuquerque, NM); Smallwood, David O. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

84

Downhole hydraulic seismic generator  

DOE Patents (OSTI)

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole. 4 figs.

Gregory, D.L.; Hardee, H.C.; Smallwood, D.O.

1990-01-01T23:59:59.000Z

85

Downhole hydraulic seismic generator  

DOE Patents (OSTI)

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole. 4 figs.

Gregory, D.L.; Hardee, H.C.; Smallwood, D.O.

1990-12-31T23:59:59.000Z

86

Advanced Seismic While Drilling System  

SciTech Connect

A breakthrough has been discovered for controlling seismic sources to generate selectable low frequencies. Conventional seismic sources, including sparkers, rotary mechanical, hydraulic, air guns, and explosives, by their very nature produce high-frequencies. This is counter to the need for long signal transmission through rock. The patent pending SeismicPULSER{trademark} methodology has been developed for controlling otherwise high-frequency seismic sources to generate selectable low-frequency peak spectra applicable to many seismic applications. Specifically, we have demonstrated the application of a low-frequency sparker source which can be incorporated into a drill bit for Drill Bit Seismic While Drilling (SWD). To create the methodology of a controllable low-frequency sparker seismic source, it was necessary to learn how to maximize sparker efficiencies to couple to, and transmit through, rock with the study of sparker designs and mechanisms for (a) coupling the sparker-generated gas bubble expansion and contraction to the rock, (b) the effects of fluid properties and dynamics, (c) linear and non-linear acoustics, and (d) imparted force directionality. After extensive seismic modeling, the design of high-efficiency sparkers, laboratory high frequency sparker testing, and field tests were performed at the University of Texas Devine seismic test site. The conclusion of the field test was that extremely high power levels would be required to have the range required for deep, 15,000+ ft, high-temperature, high-pressure (HTHP) wells. Thereafter, more modeling and laboratory testing led to the discovery of a method to control a sparker that could generate low frequencies required for deep wells. The low frequency sparker was successfully tested at the Department of Energy Rocky Mountain Oilfield Test Center (DOE RMOTC) field test site in Casper, Wyoming. An 8-in diameter by 26-ft long SeismicPULSER{trademark} drill string tool was designed and manufactured by TII. An APS Turbine Alternator powered the SeismicPULSER{trademark} to produce two Hz frequency peak signals repeated every 20 seconds. Since the ION Geophysical, Inc. (ION) seismic survey surface recording system was designed to detect a minimum downhole signal of three Hz, successful performance was confirmed with a 5.3 Hz recording with the pumps running. The two Hz signal generated by the sparker was modulated with the 3.3 Hz signal produced by the mud pumps to create an intense 5.3 Hz peak frequency signal. The low frequency sparker source is ultimately capable of generating selectable peak frequencies of 1 to 40 Hz with high-frequency spectra content to 10 kHz. The lower frequencies and, perhaps, low-frequency sweeps, are needed to achieve sufficient range and resolution for realtime imaging in deep (15,000 ft+), high-temperature (150 C) wells for (a) geosteering, (b) accurate seismic hole depth, (c) accurate pore pressure determinations ahead of the bit, (d) near wellbore diagnostics with a downhole receiver and wired drill pipe, and (e) reservoir model verification. Furthermore, the pressure of the sparker bubble will disintegrate rock resulting in an increased overall rates of penetration. Other applications for the SeismicPULSER{trademark} technology are to deploy a low-frequency source for greater range on a wireline for Reverse Vertical Seismic Profiling (RVSP) and Cross-Well Tomography. Commercialization of the technology is being undertaken by first contacting stakeholders to define the value proposition for rig site services utilizing SeismicPULSER{trademark} technologies. Stakeholders include national oil companies, independent oil companies, independents, service companies, and commercial investors. Service companies will introduce a new Drill Bit SWD service for deep HTHP wells. Collaboration will be encouraged between stakeholders in the form of joint industry projects to develop prototype tools and initial field trials. No barriers have been identified for developing, utilizing, and exploiting the low-frequency SeismicPULSER{trademark} source in a

Robert Radtke; John Fontenot; David Glowka; Robert Stokes; Jeffery Sutherland; Ron Evans; Jim Musser

2008-06-30T23:59:59.000Z

87

Frequent-Interval Seismic CPTu  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Frequent-Interval Frequent-Interval Seismic CPTu D. Bruce Nothdurft, MSCE, PE, PG SRS Geotechnical Engineering Department Savannah River Nuclear Solutions Alec V. McGillivray, PhD, PE Geotechnical Consultant Brent J. Gutierrez, PhD, PE NPH Engineering Manager, DOE-SR Motivation  The seismic piezocone penetration test (SCPTu) utilized at SRS because it provides rapid and thorough site characterization.  Evaluation of non-linear soil behavior...  detailed stratigraphy  small-strain velocity measurements  large-strain non-seismic measurements  Depth scale disparity  large-strain non-seismic measurements nearly continuous with depth  small-strain velocity measurements over 1 m depth intervals. 2 October 25-26, 2011 DOE NPH Conference

88

Position paper: Seismic design criteria  

SciTech Connect

The purpose of this paper is to document the seismic design criteria to be used on the Title 11 design of the underground double-shell waste storage tanks and appurtenant facilities of the Multi-Function Waste Tank Facility (MWTF) project, and to provide the history and methodologies for determining the recommended Design Basis Earthquake (DBE) Peak Ground Acceleration (PGA) anchors for site-specific seismic response spectra curves. Response spectra curves for use in design are provided in Appendix A.

Farnworth, S.K.

1995-05-22T23:59:59.000Z

89

Experience Based Seismic Equipment Qualification  

Science Conference Proceedings (OSTI)

This report provides guidelines that can be used to perform an experience-based seismic equipment qualification for verification of seismic adequacy of active electrical and mechanical equipment consistent with requirements of American Society of Civil Engineers (ASCE)-7. The report summarizes what requirements are sufficient to ensure that an item of equipment can perform its intended safety function after a design earthquake. The report also provides additional guidance on ensuring that an item of equi...

2007-12-21T23:59:59.000Z

90

Newberry Seismic Deployment Fieldwork Report  

DOE Green Energy (OSTI)

This report summarizes the seismic deployment of Lawrence Livermore National Laboratory (LLNL) Geotech GS-13 short-period seismometers at the Newberry Enhanced Geothermal System (EGS) Demonstration site located in Central Oregon. This Department of Energy (DOE) demonstration project is managed by AltaRock Energy Inc. AltaRock Energy had previously deployed Geospace GS-11D geophones at the Newberry EGS Demonstration site, however the quality of the seismic data was somewhat low. The purpose of the LLNL deployment was to install more sensitive sensors which would record higher quality seismic data for use in future seismic studies, such as ambient noise correlation, matched field processing earthquake detection studies, and general EGS microearthquake studies. For the LLNL deployment, seven three-component seismic stations were installed around the proposed AltaRock Energy stimulation well. The LLNL seismic sensors were connected to AltaRock Energy Gueralp CMG-DM24 digitizers, which are powered by AltaRock Energy solar panels and batteries. The deployment took four days in two phases. In phase I, the sites were identified, a cavity approximately 3 feet deep was dug and a flat concrete pad oriented to true North was made for each site. In phase II, we installed three single component GS-13 seismometers at each site, quality controlled the data to ensure that each station was recording data properly, and filled in each cavity with native soil.

Wang, J; Templeton, D C

2012-03-21T23:59:59.000Z

91

Definition: Active Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Seismic Techniques Seismic Techniques Jump to: navigation, search Dictionary.png Active Seismic Techniques Active seismic techniques study the behavior of artificially-generated elastic waves in the subsurface. A seismic wave or pulse is generated at the surface by an active seismic source which can be a vibration, mechanical impact, or near-surface explosion.[1] View on Wikipedia Wikipedia Definition Seismic waves are waves of energy that travel through the Earth's layers, and are a result of an earthquake, explosion, or a volcano that imparts low-frequency acoustic energy. Many other natural and anthropogenic sources create low amplitude waves commonly referred to as ambient vibrations. Seismic waves are studied by geophysicists called seismologists. Seismic wave fields are recorded by a seismometer,

92

Neutron reflecting supermirror structure  

DOE Patents (OSTI)

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources.

Wood, James L. (Drayton Plains, MI)

1992-01-01T23:59:59.000Z

93

Neutron reflecting supermirror structure  

DOE Patents (OSTI)

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. 2 figs.

Wood, J.L.

1992-12-01T23:59:59.000Z

94

Reflection Survey At Coso Geothermal Area (1989) | Open Energy Information  

Open Energy Info (EERE)

Reflection Survey At Coso Geothermal Area (1989) Reflection Survey At Coso Geothermal Area (1989) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Coso Geothermal Area (1989) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Reflection Survey Activity Date 1989 Usefulness useful DOE-funding Unknown Exploration Basis Determine the crustul structure of the Coso geothermal system Notes In mid-1989 the authors designed and collected four seismic reflection/refraction profiles that addressed the crustal structure of the Coso geothermal field. The two main east-west and north-south profiles crossed at the southeastern most base of Sugar Loaf Mountain. Both in-line and cross-line Vibroseis and explosion data were recorded on each of these

95

Multicomponent Seismic Analysis and Calibration to Improve Recovery from Algal Mounds: Application to the Roadrunner/Towaoc area of the Paradox Basin, UTE Mountain UTE Reservation, Colorado  

Science Conference Proceedings (OSTI)

The goals of this project were: (1) To enhance recovery of oil contained within algal mounds on the Ute Mountain Ute tribal lands. (2) To promote the use of advanced technology and expand the technical capability of the Native American Oil production corporations by direct assistance in the current project and dissemination of technology to other Tribes. (3) To develop an understanding of multicomponent seismic data as it relates to the variations in permeability and porosity of algal mounds, as well as lateral facies variations, for use in both reservoir development and exploration. (4) To identify any undiscovered algal mounds for field-extension within the area of seismic coverage. (5) To evaluate the potential for applying CO{sub 2} floods, steam floods, water floods or other secondary or tertiary recovery processes to increase production. The technical work scope was carried out by: (1) Acquiring multicomponent seismic data over the project area; (2) Processing and reprocessing the multicomponent data to extract as much geological and engineering data as possible within the budget and time-frame of the project; (3) Preparing maps and data volumes of geological and engineering data based on the multicomponent seismic and well data; (4) Selecting drilling targets if warranted by the seismic interpretation; (5) Constructing a static reservoir model of the project area; and (6) Constructing a dynamic history-matched simulation model from the static model. The original project scope covered a 6 mi{sup 2} (15.6 km{sup 2}) area encompassing two algal mound fields (Towaoc and Roadrunner). 3D3C seismic data was to acquired over this area to delineate mound complexes and image internal reservoir properties such as porosity and fluid saturations. After the project began, the Red Willow Production Company, a project partner and fully-owned company of the Southern Ute Tribe, contributed additional money to upgrade the survey to a nine-component (3D9C) survey. The purpose of this upgrade to nine components was to provide additional shear wave component data that might prove useful in delineating internal mound reservoir attributes. Also, Red Willow extended the P-wave portion of the survey to the northwest of the original 6 mi{sup 2} (15.6 km{sup 2}) 3D9C area in order to extend coverage further to the northwest to the Marble Wash area. In order to accomplish this scope of work, 3D9C seismic data set covering two known reservoirs was acquired and processed. Three-dimensional, zero-offset vertical seismic profile (VSP) data was acquired to determine the shear wave velocities for processing the sh3Dseismic data. Anisotropic velocity, and azimuthal AVO processing was carried out in addition to the conventional 3D P-wave data processing. All P-, PS- and S-wave volumes of the seismic data were interpreted to map the seismic response. The interpretation consisted of conventional cross-plots of seismic attributes vs. geological and reservoir engineering data, as well as multivariate and neural net analyses to assess whether additional resolution on exploration and engineering parameters could be achieved through the combined use of several seismic variables. Engineering data in the two reservoirs was used to develop a combined lithology, structure and permeability map. On the basis of the seismic data, a well was drilled into the northern mound trend in the project area. This well, Roadrunner No.9-2, was brought into production in late April 2006 and continues to produce modest amounts of oil and gas. As of the end of August 2007, the well has produced approximately 12,000 barrels of oil and 32,000 mcf of gas. A static reservoir model was created from the seismic data interpretations and well data. The seismic data was tied to various markers identified in the well logs, which in turn were related to lithostratigraphy. The tops and thicknesses of the various units were extrapolated from well control based upon the seismic data that was calibrated to the well picks. The reservoir engineering properties were available from a number of wel

Joe Hachey

2007-09-30T23:59:59.000Z

96

Seismic low-frequency effects from oil-saturated reservoir zones  

Science Conference Proceedings (OSTI)

We consider the frequency dependence of seismic reflections from a thin (compared to the dominant wavelength), fluid saturated reservoir for the cases of oil and water saturation. Reflections from a thin, water or oil-saturated layer have increased amplitude and delayed travel time at low frequencies if compared with reflections from a gas-saturated layer. This effect was observed for both ultrasonic lab data and seismic field data. One set of field data revealed high correlation of low frequency processed image for two different production horizons represented by fractured shale and sandstone. Another set was processed for the purpose of contouring of oil/water contact, and reveal very good correlation with available well data. The frequency dependent amplitude and phase reflection properties can be used for detecting and monitoring thin liquid saturated layers.

Goloshubin, Gennady M.; Korneev, Valeri A.; Vingalov, Vjacheslav M.

2002-04-16T23:59:59.000Z

97

Property:Geothermal/Objectives | Open Energy Information  

Open Energy Info (EERE)

Objectives Objectives Jump to: navigation, search Property Name Geothermal/Objectives Property Type Text Description Objectives Pages using the property "Geothermal/Objectives" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + Apply three-dimensional/three-component (3D-3C) reflection seismic technology to define transmissive geothermal structures at the Soda Lake Geothermal area, Churchill County, NV. A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + Install a heat-pump system in Montana Tech's new Natural Resources Building that will (a) provide efficient, geothermally based, climate control for the building, and (b) demonstrate the efficacy of using mine waters for heat pump systems. At a minimum, the system capacity will be in the 50- to 100-ton range, but could be larger if economics warrant.

98

Reflection Survey At Rye Patch Area (Deangelo, Et Al., 1999) | Open Energy  

Open Energy Info (EERE)

Deangelo, Et Al., 1999) Deangelo, Et Al., 1999) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Rye Patch Area (Deangelo, Et Al., 1999) Exploration Activity Details Location Rye Patch Area Exploration Technique Reflection Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes A 3-D seismic survey was recorded over Rye Patch geothermal field in northwest Nevada by Subsurface Exploration Company (SECO) of Pasadena, California, in 1998 (Fig. 27). This 3-D seismic data acquisition was done under the auspices of a research effort d References M. DeAngelo, B.A. Hardage, J. L. Simmons Jr. (1999) Development Of Active Seismic Vector-Wavefield Imaging Technology For Geothermal Applications Retrieved from "http://en.openei.org/w/index.php?title=Reflection_Survey_At_Rye_Patch_Area_(Deangelo,_Et_Al.,_1999)&oldid=388047"

99

Reflection Survey At Rye Patch Area (Laney, 2005) | Open Energy Information  

Open Energy Info (EERE)

Reflection Survey At Rye Patch Area (Laney, 2005) Reflection Survey At Rye Patch Area (Laney, 2005) Exploration Activity Details Location Rye Patch Area Exploration Technique Reflection Survey Activity Date Usefulness useful DOE-funding Unknown Notes Seismic Imaging, Majer, Gritto and Daley. The project objective includes the development and application of active seismic methods for improved understanding of the subsurface structure, faults, fractures lithology, and fluid paths in geothermal reservoirs. While the objective of the work previous to FY2003 was concerned with the detection and location of faults and fractures based on an existing 3-D seismic data set collected at the Rye Patch geothermal reservoir, the current work was aimed at investigating how the presence of discrete models of fault and fracture zones can be

100

Definition: Vertical Seismic Profiling | Open Energy Information  

Open Energy Info (EERE)

Profiling Profiling Jump to: navigation, search Dictionary.png Vertical Seismic Profiling Vertical Seismic Profile (VSP) is a technique of seismic measurements used for high resolution seismic imaging. It can also be used for correlation with surface seismic data providing velocity information and information for processing such as deconvolution parameters. The defining characteristic of a VSP is that the detectors are in a borehole.[1][2][3] View on Wikipedia Wikipedia Definition Also Known As Advanced Borehole Seismology (ABS), Related Terms Seismic Techniques, High Resolution Imaging and Monitoring References ↑ Bob Hardage VSP Principles ↑ High resolution 3D seismic imaging using 3C data from large downhole seismic arrays Paulsson et al. (2004) ↑ Mueller Soroka Paulsson (2010)

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Seismic Isolation of Nuclear Power Plants  

Science Conference Proceedings (OSTI)

With increasing public concern for seismic safety in general and research findings that indicate that seismic hazards may be larger than expected in many parts of the world, it would be prudent for the nuclear industry to consider more fully the potential benefits, costs, and impediments associated with applying seismic isolation more widely and to identify actions needed to develop practical and cost-effective guidelines for the application of seismic isolation to nuclear power plants (NPPs) and ...

2013-10-28T23:59:59.000Z

102

FAST Simulation of Seismic Wind Turbine Response  

DOE Green Energy (OSTI)

This paper discusses recent additions to the computer simulation code FAST that allow a user to consider seismic loads.

Prowell, I.; Elgamal, A.; Jonkman, J.

2010-03-01T23:59:59.000Z

103

The Nuclear Renaissance & the NRC Seismic Research ...  

Science Conference Proceedings (OSTI)

... Existing and New Reactor Licensing Offices ... Seismic Isolation Small Modular Reactors SSI modeling of NPPs under non-traditional loads ...

2011-03-10T23:59:59.000Z

104

Seismic Regionalization In Northeast Russia  

E-Print Network (OSTI)

In an effort to characterize seismicity in support of nuclear explosion monitoring for the continental regions of northeast Russia, we have been analyzing information obtained from regional seismic network operators. Our goal is to merge catalog, bulletin, waveform, and other ground truth data from several regional networks into a comprehensive data set that we will use for various seismic research projects. To date we have compiled a bulletin from published and unpublished event data of about 200,000 events and over 150,000 arrival times. We have also determined that the Russian regional network catalogs are contaminated with mining-explosion events. Hence, one of our primary efforts is to identify mining events when possible and move them into a separate bulletin from the natural earthquakes. We have extended our preliminary analysis of explosion contamination of Russian seismicity catalogs using temporal analysis into the Irkutsk and Chita districts and the Buryat Republic. Based on analysis of epicenters and origin times reported in Material po Seismichnost' Sibiri for 1970 -- 1993, it is likely that considerable explosion contamination occurs in the gold (Bodaibo, northern Irkutsk Region, and in the Chita region), mica (Vitim, northern Irkutsk Region), and other mining areas (Bushulei, Nerchinsk, and Petrovsk in the Buryat and Chita areas). Explosion contamination is also observed in northernmost Mongolia in the mining and industrial district near Darkhan. Explosions associated with the construction of the Baikal-Amur Mainline Railroad are likely, as was observed in the Amur district; however, the amount of natural seismicity dominates the activity and makes it impossible to resolve the railroad separately. In conjunction with the Magadan Seismic Network operators,...

Kevin Mackey Kazuya; Kazuya Fujita; Lee K. Steck; Hans E. Hartse

2002-01-01T23:59:59.000Z

105

Tandem resonator reflectance modulator  

DOE Patents (OSTI)

A wide band optical modulator is grown on a substrate as tandem Fabry-Perot resonators including three mirrors spaced by two cavities. The absorption of one cavity is changed relative to the absorption of the other cavity by an applied electric field, to cause a change in total reflected light, as light reflecting from the outer mirrors is in phase and light reflecting from the inner mirror is out of phase with light from the outer mirrors. 8 figs.

Fritz, I.J.; Wendt, J.R.

1994-09-06T23:59:59.000Z

106

Tandem resonator reflectance modulator  

DOE Patents (OSTI)

A wide band optical modulator is grown on a substrate as tandem Fabry-Perot resonators including three mirrors spaced by two cavities. The absorption of one cavity is changed relative to the absorption of the other cavity by an applied electric field, to cause a change in total reflected light, as light reflecting from the outer mirrors is in phase and light reflecting from the inner mirror is out of phase with light from the outer mirrors.

Fritz, Ian J. (Albuquerque, NM); Wendt, Joel R. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

107

Reflective diffraction grating  

DOE Patents (OSTI)

Reflective diffraction grating. A focused ion beam (FIB) micromilling apparatus is used to store color images in a durable medium by milling away portions of the surface of the medium to produce a reflective diffraction grating with blazed pits. The images are retrieved by exposing the surface of the grating to polychromatic light from a particular incident bearing and observing the light reflected by the surface from specified reception bearing.

Lamartine, Bruce C. (Los Alamos, NM)

2003-06-24T23:59:59.000Z

108

Seismic Performance Requirements for WETF  

Science Conference Proceedings (OSTI)

This report develops recommendations for requirements on the Weapons Engineering Tritium Facility (WETF) performance during seismic events. These recommendations are based on fragility estimates of WETF structures, systems, and components that were developed by LANL experts during facility walkdowns. They follow DOE guidance as set forth in standards DOE-STD-1021-93, ''Natural Phenomena Hazards Performance Categorization Guidelines for Structures, Systems, and Components'' and DOE-STD-1020-94, ''Natural Phenomena Hazards Design and Evaluation Criteria for Department of Energy Facilities''. Major recommendations are that WETF institute a stringent combustible loading control program and that additional seismic bracing and anchoring be provided for gloveboxes and heavy equipment.

Hans Jordan

2001-01-01T23:59:59.000Z

109

NIST Terahertz Reflection Measurements  

Science Conference Proceedings (OSTI)

... b) Superimposed Fourier Transform amplitude and power reflection map ... laser for broadband (0.2-2.5) THz GaAs antenna generation and detection ...

2013-04-01T23:59:59.000Z

110

Neutron reflecting supermirror structure  

DOE Patents (OSTI)

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. One layer of each set of bilayers consist of titanium, and the second layer of each set of bilayers consist of an alloy of nickel with carbon interstitially present in the nickel alloy.

Wood, James L. (Drayton Plains, MI)

1992-01-01T23:59:59.000Z

111

Reflective Insulation Handbook.  

Science Conference Proceedings (OSTI)

When reflective-foil insulation manufacturers wanted the Bonneville Power Administration (BPA) to include their products in the Residential Weatherization Program, they lacked conclusive test data to prove that their products met program specifications. Reflective foils lacked widespread acceptance because of uncertainty about their insulation values. BPA discovered that the Department of Energy (DOE) and Oak Ridge National Laboratory (ORNL) was preparing a study to test how well reflective foils reduced horizontal heat flow. Because the insulation value of reflective foils depends upon the direction of heat flow, BPA provided additional funding to test their effectiveness in reducing upward and downward heat flow and to produce this Handbook. The objectives of this study were to develop acceptable test and evaluation methods, produce an initial data base of idealized reflective-foil insulation systems, extend this data base to a limited number of commercially available products to develop and test analytical models to predict thermal performance and develop a Reflective Insulation Handbook for homeowners and insulation contractors. This handbook describes how heat is transferred; the function of an insulation; what reflective insulation is; types of reflective insulation; where it can be used; installation procedures; thermal performance; and useful sources of information. 10 figs., 2 tabs.

Desjarlais, Andre O.; Tye, Ronald P.

1990-08-01T23:59:59.000Z

112

Active Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Active Seismic Techniques Active Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Active Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

113

Teleseismic-Seismic Monitoring | Open Energy Information  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring Teleseismic-Seismic Monitoring Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Teleseismic-Seismic Monitoring Details Activities (33) Areas (18) Regions (5) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Passive Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Map geothermal reservoir geometry. Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation.

114

Vertical Seismic Profiling | Open Energy Information  

Open Energy Info (EERE)

Vertical Seismic Profiling Vertical Seismic Profiling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Vertical Seismic Profiling Details Activities (4) Areas (3) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Borehole Seismic Techniques Parent Exploration Technique: Borehole Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

115

Passive Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Passive Seismic Techniques Passive Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Passive Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(4) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

116

Micromachined silicon seismic accelerometer development  

Science Conference Proceedings (OSTI)

Batch-fabricated silicon seismic transducers could revolutionize the discipline of seismic monitoring by providing inexpensive, easily deployable sensor arrays. Our ultimate goal is to fabricate seismic sensors with sensitivity and noise performance comparable to short-period seismometers in common use. We expect several phases of development will be required to accomplish that level of performance. Traditional silicon micromachining techniques are not ideally suited to the simultaneous fabrication of a large proof mass and soft suspension, such as one needs to achieve the extreme sensitivities required for seismic measurements. We have therefore developed a novel {open_quotes}mold{close_quotes} micromachining technology that promises to make larger proof masses (in the 1-10 mg range) possible. We have successfully integrated this micromolding capability with our surface-micromachining process, which enables the formation of soft suspension springs. Our calculations indicate that devices made in this new integrated technology will resolve down to at least sub-{mu}G signals, and may even approach the 10{sup -10} G/{radical}Hz acceleration levels found in the low-earth-noise model.

Barron, C.C.; Fleming, J.G.; Montague, S. [and others

1996-08-01T23:59:59.000Z

117

USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE GEOLOGIC  

Open Energy Info (EERE)

USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE GEOLOGIC USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE GEOLOGIC AND HYDROLOGIC STRUCTURE WITHIN THE COSO GEOTHERMAL FIELD, CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE GEOLOGIC AND HYDROLOGIC STRUCTURE WITHIN THE COSO GEOTHERMAL FIELD, CALIFORNIA Details Activities (1) Areas (1) Regions (0) Abstract: We relocate 14 years of seismicity in the Coso Geothermal Field using differential travel times and simultaneously invert for seismic velocities to improve our knowledge of the subsurface geologic and hydrologic structure. We utilize over 60,000 micro-seismic events using waveform crosscorrelation to augment the expansive catalog of Pand S-wave

118

Frequency-dependent processing and interpretation (FDPI) of seismic data for identifying, imaging and monitoring fluid-saturated underground reservoirs  

DOE Patents (OSTI)

A method for identifying, imaging and monitoring dry or fluid-saturated underground reservoirs using seismic waves reflected from target porous or fractured layers is set forth. Seismic imaging the porous or fractured layer occurs by low pass filtering of the windowed reflections from the target porous or fractured layers leaving frequencies below low-most corner (or full width at half maximum) of a recorded frequency spectra. Additionally, the ratio of image amplitudes is shown to be approximately proportional to reservoir permeability, viscosity of fluid, and the fluid saturation of the porous or fractured layers.

Goloshubin, Gennady M. (Sugar Land, TX); Korneev, Valeri A. (Lafayette, CA)

2005-09-06T23:59:59.000Z

119

Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs  

SciTech Connect

During this last period of the ''Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs'' project (Grant/Cooperative Agreement DE-FC26-02NT15342), we finalized integration of rock physics, well log analysis, seismic processing, and forward modeling techniques. Most of the last quarter was spent combining the results from the principal investigators and come to some final conclusions about the project. Also much of the effort was directed towards technology transfer through the Direct Hydrocarbon Indicators mini-symposium at UH and through publications. As a result we have: (1) Tested a new method to directly invert reservoir properties, water saturation, Sw, and porosity from seismic AVO attributes; (2) Constrained the seismic response based on fluid and rock property correlations; (3) Reprocessed seismic data from Ursa field; (4) Compared thin layer property distributions and averaging on AVO response; (5) Related pressures and sorting effects on porosity and their influence on DHI's; (6) Examined and compared gas saturation effects for deep and shallow reservoirs; (7) Performed forward modeling using geobodies from deepwater outcrops; (8) Documented velocities for deepwater sediments; (9) Continued incorporating outcrop descriptive models in seismic forward models; (10) Held an open DHI symposium to present the final results of the project; (11) Relations between Sw, porosity, and AVO attributes; (12) Models of Complex, Layered Reservoirs; and (14) Technology transfer Several factors can contribute to limit our ability to extract accurate hydrocarbon saturations in deep water environments. Rock and fluid properties are one factor, since, for example, hydrocarbon properties will be considerably different with great depths (high pressure) when compared to shallow properties. Significant over pressure, on the other hand will make the rocks behave as if they were shallower. In addition to the physical properties, the scale and tuning will alter our hydrocarbon indicators. Gas saturated reservoirs change reflection amplitudes significantly. The goal for the final project period was to systematically combine and document these various effects for use in deep water exploration and transfer this knowledge as clearly and effectively as possible.

Michael Batzle

2006-04-30T23:59:59.000Z

120

Reflection Survey At Cove Fort Area - Liquid (Toksoz, Et Al, 2010) | Open  

Open Energy Info (EERE)

(Toksoz, Et Al, 2010) (Toksoz, Et Al, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Cove Fort Area (Toksoz, Et Al, 2010) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Reflection Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes We have collected various geophysical data around the geothermal field, including heat flow, gravity, MT, seismic surface wave phase and group velocity maps, seismic body wave travel time data and full seismic waveforms. All of these geophysical data sets have different strengths on characterizing subsurface structures and properties. Combining these data through a coordinated analysis and, when possible, by joint inversion provides a detailed model of the Cove Fort geothermal region.

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Reflection Survey At Under Steamboat Springs Area (Warpinski, Et Al., 2002)  

Open Energy Info (EERE)

2) 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Under Steamboat Springs Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Under Steamboat Springs Area Exploration Technique Reflection Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes This project consisted of (1) a 3-D surface seismic survey conducted in the fall of 2000, (2) a micro-seismic survey run from November 2000 to April 200 1, and (3) a gravity survey conducted in April and May 2001. The 3-D surface seismic data are still being processed at this time, but initial results indicate that there are two major lineations of high velocity running orthogonal to each other which are presumably related to the fault

122

Nuclear component horizontal seismic restraint  

DOE Patents (OSTI)

A nuclear component horizontal seismic restraint. Small gaps limit horizontal displacement of components during a seismic occurrence and therefore reduce dynamic loadings on the free lower end. The reactor vessel and reactor guard vessel use thicker section roll-forged rings welded between the vessel straight shell sections and the bottom hemispherical head sections. The inside of the reactor guard vessel ring forging contains local vertical dovetail slots and upper ledge pockets to mount and retain field fitted and installed blocks. As an option, the horizontal displacement of the reactor vessel core support cone can be limited by including shop fitted/installed local blocks in opposing alignment with the reactor vessel forged ring. Beams embedded in the wall of the reactor building protrude into apertures in the thermal insulation shell adjacent the reactor guard vessel ring and have motion limit blocks attached thereto to provide to a predetermined clearance between the blocks and reactor guard vessel ring.

Snyder, Glenn J. (Lynchburg, VA)

1988-01-01T23:59:59.000Z

123

Statistical Physics Approaches to Seismicity  

E-Print Network (OSTI)

This entry in the Encyclopedia of Complexity and Systems Science, Springer present a summary of some of the concepts and calculational tools that have been developed in attempts to apply statistical physics approaches to seismology. We summarize the leading theoretical physical models of the space-time organization of earthquakes. We present a general discussion and several examples of the new metrics proposed by statistical physicists, underlining their strengths and weaknesses. The entry concludes by briefly outlining future directions. The presentation is organized as follows. I Glossary II Definition and Importance of the Subject III Introduction IV Concepts and Calculational Tools IV.1 Renormalization, Scaling and the Role of Small Earthquakes in Models of Triggered Seismicity IV.2 Universality IV.3 Intermittent Periodicity and Chaos IV.4 Turbulence IV.5 Self-Organized Criticality V Competing mechanisms and models V.1 Roots of complexity in seismicity: dynamics or heterogeneity? V.2 Critical earthquakes ...

Sornette, D

2008-01-01T23:59:59.000Z

124

Tube-wave seismic imaging  

DOE Patents (OSTI)

The detailed analysis of cross well seismic data for a gas reservoir in Texas revealed two newly detected seismic wave effects, recorded approximately 2000 feet above the reservoir. A tube-wave (150) is initiated in a source well (110) by a source (111), travels in the source well (110), is coupled to a geological feature (140), propagates (151) through the geological feature (140), is coupled back to a tube-wave (152) at a receiver well (120), and is and received by receiver(s) (121) in either the same (110) or a different receiving well (120). The tube-wave has been shown to be extremely sensitive to changes in reservoir characteristics. Tube-waves appear to couple most effectively to reservoirs where the well casing is perforated, allowing direct fluid contact from the interior of a well case to the reservoir.

Korneev, Valeri A [LaFayette, CA

2009-05-05T23:59:59.000Z

125

Tube-wave seismic imaging  

DOE Patents (OSTI)

The detailed analysis of cross well seismic data for a gas reservoir in Texas revealed two newly detected seismic wave effects, recorded approximately 2000 feet above the reservoir. A tube-wave (150) is initiated in a source well (110) by a source (111), travels in the source well (110), is coupled to a geological feature (140), propagates (151) through the geological feature (140), is coupled back to a tube-wave (152) at a receiver well (120), and is and received by receiver(s) (121) in either the same (110) or a different receiving well (120). The tube-wave has been shown to be extremely sensitive to changes in reservoir characteristics. Tube-waves appear to couple most effectively to reservoirs where the well casing is perforated, allowing direct fluid contact from the interior of a well case to the reservoir.

Korneev, Valeri A. (Lafayette, CA); Bakulin, Andrey (Houston, TX)

2009-10-13T23:59:59.000Z

126

Oklahoma seismic network. Final report  

SciTech Connect

The US Nuclear Regulatory Commission has established rigorous guidelines that must be adhered to before a permit to construct a nuclear-power plant is granted to an applicant. Local as well as regional seismicity and structural relationships play an integral role in the final design criteria for nuclear power plants. The existing historical record of seismicity is inadequate in a number of areas of the Midcontinent region because of the lack of instrumentation and (or) the sensitivity of the instruments deployed to monitor earthquake events. The Nemaha Uplift/Midcontinent Geophysical Anomaly is one of five principal areas east of the Rocky Mountain front that has a moderately high seismic-risk classification. The Nemaha uplift, which is common to the states of Oklahoma, Kansas, and Nebraska, is approximately 415 miles long and 12-14 miles wide. The Midcontinent Geophysical Anomaly extends southward from Minnesota across Iowa and the southeastern corner of Nebraska and probably terminates in central Kansas. A number of moderate-sized earthquakes--magnitude 5 or greater--have occurred along or west of the Nemaha uplift. The Oklahoma Geological Survey, in cooperation with the geological surveys of Kansas, Nebraska, and Iowa, conducted a 5-year investigation of the seismicity and tectonic relationships of the Nemaha uplift and associated geologic features in the Midcontinent. This investigation was intended to provide data to be used to design nuclear-power plants. However, the information is also being used to design better large-scale structures, such as dams and high-use buildings, and to provide the necessary data to evaluate earthquake-insurance rates in the Midcontinent.

Luza, K.V.; Lawson, J.E. Jr. [Oklahoma Geological Survey, Norman, OK (United States)]|[Univ. of Oklahoma, Norman, OK (United States). Energy Center

1993-07-01T23:59:59.000Z

127

GAUSSIAN BEAM IMAGING FOR CONVERTED AND SURFACE REFLECTED ROBERT L. NOWACK  

E-Print Network (OSTI)

. The earthquake seismology community now regularly uses seismic waves from distant sources to illuminate). For exploration geometries in reservoir structures, ghost reflections from the free surface can be used and Claerbout, 1999) For the imaging of receiver function data from distant sources, basic stacking techniques

Nowack, Robert L.

128

Seismicity and seismic stress in the Coso Range, Coso geothermal field, and  

Open Energy Info (EERE)

Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Indian Wells Valley region, Southeast-Central California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Indian Wells Valley region, Southeast-Central California Details Activities (1) Areas (1) Regions (0) Abstract: The temporal and spatial distribution of seismicity in the Coso Range, the Coso geothermal field, and the Indian Wells Valley region of southeast-central California are discussed in this paper. An analysis of fault-related seismicity in the region led us to conclude that the Little Lake fault and the Airport Lake fault are the most significant seismogenic zones. The faulting pattern clearly demarcates the region as a transition

129

Probabilistic economic evaluation of substation seismic upgrade  

SciTech Connect

This paper presents a methodology for deciding whether or not to implement seismic design modifications at Southern California Edison's (SCE) Substation facilities. The method considers the potential for substation capability loss resulting from earthquake damage, cost of seismic modification made today, the cost of damage restoration after that modification is made, the cost of doing nothing now, and the site specific earthquake probability. Based on these findings, recommendations for seismic modifications of substation facilities could be made.

Ong, T.L.; Ensign, R.L.; Martin, D.F.; Richter, H.L. (Southern California Edison Co., Rosemead, CA (USA))

1990-04-01T23:59:59.000Z

130

Seismic Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial  

Open Energy Info (EERE)

Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial Magma Chamber At The Southern East Pacific Rise Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismic Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial Magma Chamber At The Southern East Pacific Rise Details Activities (1) Areas (1) Regions (0) Abstract: A full-waveform inversion of two-ship, wide-aperture, seismic reflection data from a ridge-crest seismic line at the southern East Pacific Rise indicates that the axial magma chamber here is about 50 m thick, is embedded within a solid roof, and has a solid floor. The 50-60-m-thick roof is overlain by a 150-200-m-thick low-velocity zone that may correspond to a fracture zone that hosts the hydrothermal circulation,

131

Reflection Survey At Yellowstone Region (Morgan, Et Al., 2003) | Open  

Open Energy Info (EERE)

Yellowstone Region (Morgan, Et Al., 2003) Yellowstone Region (Morgan, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Yellowstone Region (Morgan, Et Al., 2003) Exploration Activity Details Location Yellowstone Caldera Geothermal Region Exploration Technique Reflection Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Simultan eously, we surveyed over 2500 linear km with high-resolution seismic reflection profling that penetrated the upper ~25 m of the lake bottom. References L. A. Morgan, W. C. Shanks, D. A. Lovalvo, S. Y. Johnson, W. J. Stephenson, K. L. Pierce, S. S. Harlan, C. A. Finn, G. Lee, M. Webring, B. Schulze, J. Duhn, R. Sweeney, L. Balistrieri (2003) Exploration And Discovery In Yellowstone Lake- Results From High-Resolution Sonar Imaging,

132

Reflection Survey At Blue Mountain Area (Fairbank Engineering, 2007) | Open  

Open Energy Info (EERE)

Blue Mountain Area (Fairbank Engineering, 2007) Blue Mountain Area (Fairbank Engineering, 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Blue Mountain Area (Fairbank Engineering, 2007) Exploration Activity Details Location Blue Mountain Area Exploration Technique Reflection Survey Activity Date Usefulness useful DOE-funding Unknown Notes A high-resolution seismic reflection survey was conducted by Utah Geophysical, Inc. (1990) along four widely spaced survey lines normal to range front fault sets. The survey was designed primarily to detect silicified zones or zones of argillic alteration, and faulting, to depths of about 300 meters (1000 feet), as part of the precious metals exploration program. One interpretation of the data showed discrete, high-angle faults

133

Borehole Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Borehole Seismic Techniques Borehole Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Borehole Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Borehole Seismic Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation Thermal: High temperatures and pressure impact the compressional and shear wave velocities

134

HYDRAULIC FRACTURING AND INDUCED SEISMICITY IN KANSAS  

E-Print Network (OSTI)

For some time the public has asked questions about seismic activity related to hydraulic fracturing and other oil-field related activities. In particular, there is concern that the energy that goes into the subsurface during hydraulic fracturing is sufficient to cause felt earthquakes. The following is a response to those questions. 1) Seismic activity that is related to human activities is generally referred to as induced seismicity or triggered seismicity. Induced seismicity is defined as seismic events attributable to human activities (National Research Council, 2012). The term triggered seismicity is also used to describe situations in which human activities could potentially trigger large and potentially damaging earthquakes (Shemeta et al., 2012). The following discussion uses only the term induced seismicity to refer to seismic activity in which human activity plays a role. 2) Because it uses energy to fracture rocks to release oil or natural gas, hydraulic fracturing does create microseismic events (of a magnitude less than 2.0). Felt earthquake activity (generally greater than a magnitude 3.0) resulting from hydraulic fracturing has been confirmed from only one location in the world (National Research Council, 2012). In the

unknown authors

2013-01-01T23:59:59.000Z

135

Mapping Diffuse Seismicity for Geothermal Reservoir Management...  

Open Energy Info (EERE)

Facebook icon Twitter icon Mapping Diffuse Seismicity for Geothermal Reservoir Management with Matched Field Processing Geothermal Lab Call Project Jump to: navigation,...

136

Tentative Framework for Development of Advanced Seismic ...  

Science Conference Proceedings (OSTI)

... 3-30 4. Conceptual Reformulation of Seismic Design Parameters ..... ... 4-5 4.4.1 Maximum Considered Earthquake Basis for the RM Factor ...

2013-06-17T23:59:59.000Z

137

Shape optimization using reflection lines  

Science Conference Proceedings (OSTI)

Many common objects have highly reflective metallic or painted finishes. Their appearance is primarily defined by the distortion the curved shape of the surface introduces in the reflections of surrounding objects. Reflection lines are commonly used ...

E. Tosun; Y. I. Gingold; J. Reisman; D. Zorin

2007-07-01T23:59:59.000Z

138

Teleseismic-Seismic Monitoring At Kilauea Summit Area (Chouet...  

Open Energy Info (EERE)

10). References Bernard Chouet, Kehti Aki (1981) Seismic Structure And Seismicity Of The Cooling Lava Lake Of Kilauea Iki, Hawaii Retrieved from "http:en.openei.orgw...

139

Teleseismic-Seismic Monitoring At New River Area (DOE GTP) |...  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring At New River Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At New...

140

Category:Passive Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Passive Seismic Techniques page? For detailed information on Passive Seismic Techniques,...

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Seismic baseline and induction studies- Roosevelt Hot Springs...  

Open Energy Info (EERE)

Seismic baseline and induction studies- Roosevelt Hot Springs, Utah and Raft River, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Seismic baseline and...

142

Towards a bayesian seismotectonic zoning for use in Probabilistic Seismic Hazard Assessment (PSHA)  

SciTech Connect

The mathematical representation of seismic sources is an important part of probabilistic seismic hazard assessment. It reflects the association of the seismicity with the tectonically-active geological structures evidenced by seismotectonic studies. Given that most active faults are not characterized well enough, seismic sources are generally defined as areal zones, delimited with finite boundary polygons, within which the geological features of active tectonics and the seismicity are deemed homogeneous (e.g., focal depth, seismicity rate, and maximum magnitude). Besides the lack of data (e.g., narrow range of recorded magnitudes), the application of this representation generates different problems: 1) a large sensitivity of resulting hazard maps on the location of zone boundaries, while these boundaries are set by expert decision; 2) the zoning can not represent any variation in faulting mechanism; 3) the seismicity rates are distributed throughout the zones and we lose the location of the determinant information used for their calculation. We propose an exploratory study for an alternative procedure in area source modeling. First, different data (e.g., geomorphology, geology, fault orientations) will be combined by using automated spatial partitioning (investigation of both supervised and unsupervised methods) in order to obtain several information classes, which may be defined as areal source zones. Then, a given hypocenter belonging to a given ''zone'', from now on called seismicity model, will be expressed by a probability computed from the 2D (spatial) probability density function (pdf) for the active tectonic model used as an a priori and updated with specific data from seismicity catalogs (e.g., focal mechanism) or other new data sources (e.g., geomorphology, subsurface exploration). This hypocenter will thus be allowed to contribute to several models, with weights given by the value of the pdf for each model. The annual rate of occurrence, for a given model, will be calculated by the weighted average of the different hypocenter contributions contained in this model. Future applications will couple the seismicity models to Ground Motion Prediction Equations. In consequence, the results will provide the full spectrum of variability in the hazard and will highlight zones badly constrained and deserving to be more studied.

Le Goff, Boris; Fitzenz, Delphine [CGE, University of Evora (Portugal); Beauval, Celine [LGIT-IRD (France)

2011-03-14T23:59:59.000Z

143

Seismic monitoring at The Geysers  

DOE Green Energy (OSTI)

During the last several years Lawrence Berkeley Laboratory (LBL) and Lawrence Livermore National Laboratory (LLNL) have been working with industry partners at The Geysers geothermal field to evaluate and develop methods for applying the results of microearthquake (MEQ) monitoring. It is a well know fact that seismicity at The Geysers is a common occurrence, however, there have been many studies and papers written on the origin and significance of the seismicity. The attitude toward MEQ data ranges from being nothing more than an curious artifact of the production activities, to being a critical tool in evaluating the reservoir performance. The purpose of the work undertaken b y LBL and LLNL is to evaluate the utility, as well as the methods and procedures used in of MEQ monitoring, recommend the most cost effective implementation of the methods, and if possible link physical processes and parameters to the generation of MEQ activity. To address the objectives above the MEQ work can be categorized into two types of studies. The first type is the direct analysis of the spatial and temporal distribution of MEQ activity and studying the nature of the source function relative to the physical or chemical processes causing the seismicity. The second broad area of study is imaging the reservoir/geothermal areas with the energy created by the MEQ activity and inferring the physical and/or chemical properties within the zone of imaging. The two types of studies have obvious overlap, and for a complete evaluation and development require high quality data from arrays of multicomponent stations. Much of the effort to date at The Geysers by both DOE and the producers has concentrated establishing a high quality data base. It is only within the last several years that this data base is being fully evaluated for the proper and cost effective use of MEQ activity. Presented here are the results to date of DOE`s effort in the acquisition and analysis of the MEQ data.

Majer, E.L.; Romero, A.; Vasco, D.; Kirkpatrick, A.; Peterson, J.E. [Lawrence Berkeley Lab., CA (United States); Zucca, J.J.; Hutchings, L.J.; Kasameyer, P.W. [Lawrence Livermore National Lab., CA (United States)

1993-04-01T23:59:59.000Z

144

Non-linear Seismic Soil Structure Interaction Method for Developing Nonlinear Seismic SSI  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Linear Seismic Soil Structure Interaction (SSI) Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques Justin Coleman, P.E. October 25th, 2011 E102003020BDS Presentation Outline  Purpose of Presentation  Linear versus Non-Linear Seismic SSI  Non-Linear seismic Soil Structure Interaction (NLSSI) Studies  The NLSSI Introduction  Non-Linearity in Seismic SSI Analysis  Commercial Software Elements  Commercial Software Non-Linear Constitutive Models  Non-Linear Seismic SSI Damping  Demonstration of Time Domain 2D Model  NLSSI Validation Approach  NLSSI Implementation  Need For NLSSI  Conclusions E102003020BDS Purpose of Presentation  The purpose of the presentation is to establish the need for using non-linear analysis

145

Seismic Studies of Substation Equipment: Progress Report  

Science Conference Proceedings (OSTI)

IEEE Standard 693, Recommended Practice for Seismic Design of Substations, is used by electric power utilities to qualify substation equipment for seismic movements. Deficiencies exist in the present standard, and information is unavailable for dynamic response that may be used to better analyze equipment and permit equipment evaluation in case of limited configuration changes, such as insulator substitution.

2009-09-28T23:59:59.000Z

146

Seismic Probabilistic Risk Assessment Implementation Guide  

Science Conference Proceedings (OSTI)

BackgroundThis report provides updates to the guidelines and approaches for seismic probabilistic risk assessments (SPRAs) that were published in the initial Electric Power Research Institute (EPRI) report Seismic Probabilistic Risk Assessment Implementation Guide (1002989) in 2003. It provides practical guidelines for SPRA development to support a variety of uses, including risk-informed applications.It is intended that a probabilistic risk ...

2013-12-18T23:59:59.000Z

147

Apparatus and method for detecting seismic waves  

SciTech Connect

Disclosed is an apparatus for transducing seismic signals and a method for placing said apparatus for detecting seismic signals. The apparatus comprises at least one geophone preferably embedded in a polymeric material contained in a tubular member. A lower portion of the tubular member preferably contains ballast. The tubular member is preferably cemented into a borehole.

O' Brien, T.T.

1985-08-06T23:59:59.000Z

148

MEASUREMENT OF COMPRESSIONAL-WAVE SEISMIC VELOCITIES IN 29 WELLS AT THE HANFORD SITE  

Science Conference Proceedings (OSTI)

Check shot seismic velocity surveys were collected in 100 B/C, 200 East, 200-PO-1 Operational Unit (OU), and the Gable Gap areas in order to provide time-depth correlation information to aid the interpretation of existing seismic reflection data acquired at the Hanford Site (Figure 1). This report details results from 5 wells surveyed in fiscal year (FY) 2008, 7 wells in FY 2009, and 17 wells in FY 2010 and provides summary compressional-wave seismic velocity information to help guide future seismic survey design as well as improve current interpretations of the seismic data (SSC 1979/1980; SGW-39675; SGW-43746). Augmenting the check shot database are four surveys acquired in 2007 in support of the Bechtel National, Inc. Waste Treatment Plant construction design (PNNL-16559, PNNL-16652), and check shot surveys in three wells to support seismic testing in the 200 West Area (Waddell et al., 1999). Additional sonic logging was conducted during the late 1970s and early 1980s as part of the Basalt Waste Isolation Program (BWIP) (SSC 1979/1980) and check shot/sonic surveys as part of the safety report for the Skagit/Hanford Nuclear project (RDH/10-AMCP-0164). Check shot surveys are used to obtain an in situ measure of compressional-wave seismic velocity for sediment and rock in the vicinity of the well point, and provide the seismic-wave travel time to geologic horizons of interest. The check shot method deploys a downhole seismic receiver (geophone) to record the arrival of seismic waves generated by a source at the ground surface. The travel time of the first arriving seismic-wave is determined and used to create a time-depth function to correlate encountered geologic intervals with the seismic data. This critical tie with the underlying geology improves the interpretation of seismic reflection profile information. Fieldwork for this investigation was conducted by in house staff during the weeks of September 22, 2008 for 5 wells in the 200 East Area (Figure 2); June 1, 2009 for 7 wells in the 200-PO-1 OU and Gable Gap regions (see Figure 3 and Figure 4); and March 22, 2010 and April 19, 2010 for 17 wells in the 200 East, The initial scope of survey work was planned for Wells 299-EI8-1, 699-2-E14, 699-12-18, 699-16-51, 699-42-30, 699-53-55B, 699-54-18D, and 699-84-34B. Well 299-E18-1 could not be entered due to bent casing (prevented removal of the pump), wells 699-12-18 and 699-42-30 could not be safely reached by the logging truck, Well 699-16-51 was decommissioned prior to survey start, Well 699-53-55B did not have its pump pulled, and Wells 699-2-EI4, 699-54-18D, and 699-84-34B are artesian and capped with an igloo structure. Table 1 provides a list of wells that were surveyed and Figure 1 through Figure 5 show the well locations relative to the Hanford Site.

PETERSON SW

2010-10-08T23:59:59.000Z

149

Seismicity in Azerbaijan and Adjacent Caspian Sea  

Science Conference Proceedings (OSTI)

So far no general view on the geodynamic evolution of the Black Sea to the Caspian Sea region is elaborated. This is associated with the geological and structural complexities of the region revealed by geophysical, geochemical, petrologic, structural, and other studies. A clash of opinions on geodynamic conditions of the Caucasus region, sometimes mutually exclusive, can be explained by a simplified interpretation of the seismic data. In this paper I analyze available data on earthquake occurrences in Azerbaijan and the adjacent Caspian Sea region. The results of the analysis of macroseismic and instrumental data, seismic regime, and earthquake reoccurrence indicate that a level of seismicity in the region is moderate, and seismic event are concentrated in the shallow part of the lithosphere. Seismicity is mostly intra-plate, and spatial distribution of earthquake epicenters does not correlate with the plate boundaries.

Panahi, Behrouz M. [Geology Institute, Azerbaijan National Academy of Sciences, 29-A H. Javid Ave., Baku 1143 (Azerbaijan)

2006-03-23T23:59:59.000Z

150

Solar Reflectance Index Calculator  

NLE Websites -- All DOE Office Websites (Extended Search)

Reflectance Index Calculator Reflectance Index Calculator ASTM Designation: E 1980-01 Enter A State: Select a state Alabama Alaska Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Iowa Idaho Illinois Indiana Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana North Carolina North Dakota Nebraska Nevada New Hampshire New Jersey New Mexico New York Ohio Oklahoma Oregon Pennsylvania Pacific Islands Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington Wisconsin West Virginia Wyoming Canadian Cities Enter A City: Select a city Wind Speed (mph) Wind Speed (m/s) Please input both the SR and the TE and the convection coeficient and surface temperature will be calculated

151

Polarizer reflectivity variations  

SciTech Connect

On Shiva the beam energy along the chain is monitored using available reflections and/or transmission through beam steering, splitting, and polarizing optics without the intrusion of any additional glass for diagnostics. On the preamp table the diagnostic signal is obtained from the signal transmitted through turning mirrors. At the input of each chain the signal is obtained from the transmission through one of the mirrors used for the chain input alignment sensor (CHIP). At the chain output the transmission through the final turning mirror is used. These diagnostics have proved stable and reliable. However, one of the prime diagnostic locations is at the output of the beta rod. The energy at this location is measured by collecting small reflections from the last polarizer surface of the beta Pockels cell polarizer package. Unfortunately, calibration of this diagnostic has varied randomly, seldom remaining stable for a week or more. The cause of this fluctuation has been investigated for the past year and'it has been discovered that polarizer reflectivity varies with humidity. This report will deal with the possible causes that were investigated, the evidence that humidity is causing the variation, and the associated mechanism.

Ozarski, R.G.; Prior, J.

1980-02-22T23:59:59.000Z

152

Parallel implementation of stochastic inversion of seismic tomography data  

Science Conference Proceedings (OSTI)

In this paper parallel implementation of stochastic inversion of seismic tomography data was presented. Classical approach to travel time tomography assumes straight line of seismic rays between sources and receives points and isotropy of geological ... Keywords: inverse problem, master-slave paradigm, seismic anisotropy, seismic tomography

Maciej Dwornik; Anna Pi?ta

2011-09-01T23:59:59.000Z

153

Seismic stimulation for enhanced oil recovery  

Science Conference Proceedings (OSTI)

The pore-scale effects of seismic stimulation on two-phase flow are modeled numerically in random 2D grain0pack geometries. Seismic stimulation aims to enhance oil production by sending seismic waves across a reservoir to liberate immobile patches of oil. For seismic amplitudes above a well-defined (analytically expressed) dimensionless criterion, the force perturbation associated with the waves indeed can liberate oil trapped on capillary barriers and get it flowing again under the background pressure gradient. Subsequent coalescence of the freed oil droplets acts to enhance oil movement further because longer bubbles overcome capillary barriers more efficiently than shorter bubbles do. Poroelasticity theory defines the effective force that a seismic wave adds to the background fluid-pressure gradient. The lattice-Boltzmann model in two dimensions is used to perform pore-scale numerical simulations. Dimensionless numbers (groups of material and force parameters) involved in seismic stimulation are defined carefully so that numerical simulations can be applied to field-scale conditions. Using the analytical criteria defined in the paper, there is a significant range of reservoir conditions over which seismic stimulation can be expected to enhance oil production.

Pride, S.R.; Flekkoy, E.G.; Aursjo, O.

2008-07-22T23:59:59.000Z

154

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

11 - 1820 of 29,416 results. 11 - 1820 of 29,416 results. Download EA-1685: Final Environmental Assessment Parker-Planet Tap 69-kV Transmission Line Rebuild, Upgrade and Right-Of-Way Action http://energy.gov/nepa/downloads/ea-1685-final-environmental-assessment Download EA-1775: Final Environmental Assessment Texas A&M University Combined Heat and Power Project, College Station, Texas http://energy.gov/nepa/downloads/ea-1775-final-environmental-assessment Download EA-1917: Mitigation Action Plan Wave Energy Test Facility Project, Newport, OR http://energy.gov/nepa/downloads/ea-1917-mitigation-action-plan Download CX-006567: Categorical Exclusion Determination Recovery Act: A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known

155

Property:Geothermal/OtherPrincipalInvestigator | Open Energy Information  

Open Energy Info (EERE)

OtherPrincipalInvestigator OtherPrincipalInvestigator Jump to: navigation, search Property Name Geothermal/OtherPrincipalInvestigator Property Type String Description Other Principal Investigators Subproperties This property has the following 2 subproperties: A A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project D Development of Chemical Model to Predict the Interactions between Supercritical CO2 and Fluid, Rocks in EGS Reservoirs Geothermal Project Pages using the property "Geothermal/OtherPrincipalInvestigator" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + John Louie, University of Nevada and Lisa Shevenell, University of Nevada +

156

CX-001422: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2: Categorical Exclusion Determination 2: Categorical Exclusion Determination CX-001422: Categorical Exclusion Determination A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource: Soda lake, Churchill County, Nevada CX(s) Applied: B3.1, A9 Date: 03/29/2010 Location(s): Soda Lake, Nevada Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Magma Energy (United States) Corporation (Magma) would demonstrate the potential geothermal resource at the Soda Lake geothermal area in Churchill County, Nevada. In Phase I (exploration geophysics), Magma would collect and interpret resistivity data from both Magnetotelluric and Controlled-Source Audio-Magnetotelluric electrical surveys, and conduct

157

Property:Geothermal/AwardeeWebsite | Open Energy Information  

Open Energy Info (EERE)

AwardeeWebsite AwardeeWebsite Jump to: navigation, search Property Name Geothermal/AwardeeWebsite Property Type URL Description Awardee Website Pages using the property "Geothermal/AwardeeWebsite" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + http://www.magmaenergycorp.com/s/Home.asp + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + http://www.mtech.edu/ + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + http://www.nmt.edu/ +

158

CX-004109: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

109: Categorical Exclusion Determination 109: Categorical Exclusion Determination CX-004109: Categorical Exclusion Determination Phase 2 - A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones over a Known Geothermal Resource: Soda Lake, Churchill County, Nevada CX(s) Applied: B3.1, B3.7 Date: 09/29/2010 Location(s): Soda Lake, Nevada Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Magma Energy Corporation would demonstrate the potential geothermal resource at the Soda Lake geothermal area in Churchill County, Nevada. In Phase 1 (exploration geophysics), Magma collected and interpreted resistivity data from both Magnetotelluric and Controlled-Source Audio-Magnotelluric electrical surveys, and conduct detailed geologic

159

Property:Geothermal/Partner1 | Open Energy Information  

Open Energy Info (EERE)

Partner1 Partner1 Jump to: navigation, search Property Name Geothermal/Partner1 Property Type String Description Partner 1 Pages using the property "Geothermal/Partner1" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + University of Nevada + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + TBA + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + Los Alamos National Laboratory + A new analytic-adaptive model for EGS assessment, development and management support Geothermal Project + Lawrence Berkeley National Lab +

160

Property:Geothermal/FundingSource | Open Energy Information  

Open Energy Info (EERE)

FundingSource FundingSource Jump to: navigation, search Property Name Geothermal/FundingSource Property Type String Description Funding Source Pages using the property "Geothermal/FundingSource" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + American Recovery and Reinvestment Act of 2009 + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + American Recovery and Reinvestment Act of 2009 + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + American Recovery and Reinvestment Act of 2009 +

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Property:Geothermal/AwardeeCostShare | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:Geothermal/AwardeeCostShare Jump to: navigation, search Property Name Geothermal/AwardeeCostShare Property Type Number Description Awardee Cost Share Pages using the property "Geothermal/AwardeeCostShare" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + 9,571,873 + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + 1,082,753 + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + 4,135,391 +

162

Property:Geothermal/TotalProjectCost | Open Energy Information  

Open Energy Info (EERE)

TotalProjectCost TotalProjectCost Jump to: navigation, search Property Name Geothermal/TotalProjectCost Property Type Number Description Total Project Cost Pages using the property "Geothermal/TotalProjectCost" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + 14,571,873 + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + 2,155,497 + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + 6,135,381 + A new analytic-adaptive model for EGS assessment, development and management support Geothermal Project + 1,629,670 +

163

CX-006567: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

67: Categorical Exclusion Determination 67: Categorical Exclusion Determination CX-006567: Categorical Exclusion Determination Recovery Act: A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource: Soda Lake, Churchill County, Nevada CX(s) Applied: A9, B3.1, B3.7 Date: 08/24/2011 Location(s): Churchill County, Nevada Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Magma Energy Corporation (Magma) would demonstrate the potential geothermal resource at the Soda Lake geothermal area in Churchill County, Nevada. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-006567.pdf More Documents & Publications CX-001422: Categorical Exclusion Determination CX-004109: Categorical Exclusion Determination

164

Property:Geothermal/DOEFundingLevel | Open Energy Information  

Open Energy Info (EERE)

DOEFundingLevel DOEFundingLevel Jump to: navigation, search Property Name Geothermal/DOEFundingLevel Property Type Number Description DOE Funding Level (total award amount) Pages using the property "Geothermal/DOEFundingLevel" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + 5,000,000 + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + 1,072,744 + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + 1,999,990 +

165

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

11 - 3420 of 28,905 results. 11 - 3420 of 28,905 results. Download CX-005421: Categorical Exclusion Determination Ohop Underbuild Project CX(s) Applied: B4.6, B4.12 Date: 03/11/2011 Location(s): Pierce County, Washington Office(s): Bonneville Power Administration http://energy.gov/nepa/downloads/cx-005421-categorical-exclusion-determination Download EIS-0332: Final Environmental Impact Statement McNary-John Day Transmission Line Project http://energy.gov/nepa/downloads/eis-0332-final-environmental-impact-statement Download CX-006567: Categorical Exclusion Determination Recovery Act: A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource: Soda Lake, Churchill County, Nevada CX(s) Applied: A9, B3.1, B3.7

166

Categorical Exclusion Determinations: Office of Energy Efficiency and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

24, 2011 24, 2011 CX-006570: Categorical Exclusion Determination North Dakota-Tribe-Standing Rock Sioux Tribe CX(s) Applied: B3.6, B5.1 Date: 08/24/2011 Location(s): Fort Yates, North Dakota Office(s): Energy Efficiency and Renewable Energy August 24, 2011 CX-006569: Categorical Exclusion Determination Michigan-County-Macomb CX(s) Applied: A9, A11, B5.1 Date: 08/24/2011 Location(s): Macomb County, Michigan Office(s): Energy Efficiency and Renewable Energy August 24, 2011 CX-006567: Categorical Exclusion Determination Recovery Act: A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource: Soda Lake, Churchill County, Nevada CX(s) Applied: A9, B3.1, B3.7 Date: 08/24/2011 Location(s): Churchill County, Nevada

167

Property:Geothermal/FundingOpportunityAnnouncemt | Open Energy Information  

Open Energy Info (EERE)

Geothermal/FundingOpportunityAnnouncemt Geothermal/FundingOpportunityAnnouncemt Jump to: navigation, search Property Name Geothermal/FundingOpportunityAnnouncemt Property Type String Description Funding Opportunity Announcement Pages using the property "Geothermal/FundingOpportunityAnnouncemt" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + DE-FOA-0000109 + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + DE-FOA-0000116 + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + DE-FOA-0000109 +

168

List of Geothermal ARRA Projects | Open Energy Information  

Open Energy Info (EERE)

ARRA Projects ARRA Projects Jump to: navigation, search List of Geothermal ARRA Funded Projects CSV State Project Type Topic 2 Awardees Funding Location of Project A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project Nevada Validation of Innovative Exploration Technologies Magma Energy 5,000,000 Soda Lake, Nevada A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project Montana Topic Area 1: Technology Demonstration Projects Montana Tech of The University of Montana 1,072,744 Butte, Montana A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project New Mexico Geothermal Energy Production from Low Temperature Resources, Coproduced Fluids from Oil and Gas Wells, and Geopressured Resources New Mexico Institute of Mining and Technology 1,999,990 Socorro, New Mexico

169

Property:Geothermal/LocationOfProject | Open Energy Information  

Open Energy Info (EERE)

LocationOfProject LocationOfProject Jump to: navigation, search Property Name Geothermal/LocationOfProject Property Type Page Description Location of Project Pages using the property "Geothermal/LocationOfProject" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + Soda Lake, Nevada + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + Butte, Montana + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + Socorro, New Mexico +

170

Property:Geothermal/AboutArea | Open Energy Information  

Open Energy Info (EERE)

AboutArea AboutArea Jump to: navigation, search Property Name Geothermal/AboutArea Property Type Text Description About the Area Pages using the property "Geothermal/AboutArea" Showing 18 pages using this property. A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + Churchill County, NV Alum Innovative Exploration Project Geothermal Project + Alum geothermal project is located in Nevada ~150 miles SE of Reno. It consists of federal geothermal leases that are 100% owned by SGP. Application of 2D VSP Imaging Technology to the Targeting of Exploration and Production Wells in a Basin and Range Geothermal System Humboldt House-Rye Patch Geothermal Area Geothermal Project + Humboldt House-Rye Patch (HH-RP) geothermal resource area

171

Property:Geothermal/Impacts | Open Energy Information  

Open Energy Info (EERE)

Impacts Impacts Jump to: navigation, search Property Name Geothermal/Impacts Property Type Text Description Impacts Pages using the property "Geothermal/Impacts" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + If successful, this would mark a major advance in our ability to image potentially productive fluid pathways in fracture-dominated systems. A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + Successful application of techniques could allow replication to buildings across campus and in City of Butte, including county court house, the Federal court building, World Museum of Mining, and numerous privately owned historic buildings.

172

Property:Geothermal/Awardees | Open Energy Information  

Open Energy Info (EERE)

Awardees Awardees Jump to: navigation, search Property Name Geothermal/Awardees Property Type String Description Awardees (Company / Institution) Pages using the property "Geothermal/Awardees" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + Magma Energy + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + Montana Tech of The University of Montana + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + New Mexico Institute of Mining and Technology +

173

Property:Geothermal/LegalNameOfAwardee | Open Energy Information  

Open Energy Info (EERE)

LegalNameOfAwardee LegalNameOfAwardee Jump to: navigation, search Property Name Geothermal/LegalNameOfAwardee Property Type String Description Legal Name of Awardee Pages using the property "Geothermal/LegalNameOfAwardee" Showing 13 pages using this property. A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + Magma Energy (U.S.) Corp. + A new analytic-adaptive model for EGS assessment, development and management support Geothermal Project + Board of Regents, NSHE, on behalf of UNR + An Integrated Experimental and Numerical Study: Developing a Reaction Transport Model that Couples Chemical Reactions of Mineral Dissolution/Precipitation with Spatial and Temporal Flow Variations in CO2/Brine/Rock Systems Geothermal Project + Regents of the University of Minnesota +

174

Seismic amplitude and coherency response of channel sand, offshore Louisiana, Gulf of Mexico  

E-Print Network (OSTI)

Geological drilling hazards are a major concern in the ics. drilling and development of offshore reservoirs. Some of these hazards may display high amplitudes on seismic profiles and some may be associated with stratigraphic features. Seismic amplitude anomalies associated with channel sand deposits may indicate potential accumulations of hydrocarbons in reservoirs. However, shallow hydrocarbon accumulations are rarely of production size. More often, they are potential geological drilling hazards that could inhibit the development of petroleum resources from deeper hydrocarbon-bearing layers. Traditionally, existing and potential geologic hazards are identified by interpretation of high-resolution site survey data, acquired specifically for drilling hazard delineation. This paper describes a new technique for drilling hazard identification using a conventional 3D seismic amplitude dataset. An event coherence calculation program is applied to a 3D seismic dataset to derive seismic attributes sufficient to highlight structural and stratigraphic discontinuities in the area. A resultant 3D difference cube is used to establish fault framework and to detect spatial distribution of channel deposits in the area and their geometries. Superposition of the difference cube on seismic amplitude data allows simultaneous display of structural and stratigraphic discontinuities and reflectivity information. Therefore, it is used for the delineation of channels, which show anomalous amplitudes, identification of their dimensions and spatial locations, and implication of gas-charged sand distribution within the detected channel. The paper gives a detailed description of a workflow, which was found sufficient for delineation of likely gas-charged sand channels, and discusses the ways to adjust the proposed workbox to specific objectives.

Fischer, Elena Mikhaylovna

1999-01-01T23:59:59.000Z

175

Advanced Methods for Determination of Seismic Fragilities: Seismic Fragilities Using Scenario Earthquakes  

Science Conference Proceedings (OSTI)

Seismic probabilistic risk assessment (SPRA) is an increasingly important means of assessing the seismic safety of nuclear power plants. The standard approach for incorporating the seismic hazard into an SPRA is to use the uniform hazard spectra (UHS), which is computed independently at each spectral frequency, resulting in an equal probability of exceeding the ground motion at any frequency. As a result, the UHS may not be representative of an actual earthquake spectrum, and is a potential source of con...

2011-11-22T23:59:59.000Z

176

Seismic Pulses Derivation from the Study of Source Signature Characteristics  

Science Conference Proceedings (OSTI)

This paper deals with a deterministic technique for the derivation of seismic pulses by the study of source characteristics. The spectral characteristics of the directly or the nearest detected seismic signal is analyzed and considered as the principle source signature. Using this signature seismic pulses are derived with accurate time position in the seismic traces. The technique is applied on both synthetic and field refraction seismic traces. In both cases it has estimated that the accurate time shifts along with amplitude coefficients.

Rahman, Syed Mustafizur; Nawawi, M. N. Mohd.; Saad, Rosli [School of Physics, Univeristi Sains Malaysia, 11800 USM, Pulau Pinang (Malaysia)

2010-07-07T23:59:59.000Z

177

Documentation : a reflective practice approach  

E-Print Network (OSTI)

The Center for Reflective Community Practice in MIT's Department of Urban studies is involved in projects helping community organizers working on social change. In order to foster reflection, they are currently utilizing ...

Ouko, Luke Odhiambo

2005-01-01T23:59:59.000Z

178

Piezotube Borehole Seismic Source for Continuous Crosswell ...  

Tom Daley and colleagues at Berkeley Lab have invented a seismic source that can be operated while fluid is being injected or withdrawn from an aquifer or oil well.

179

Seismic retrofitting of deficient Canadian buildings  

E-Print Network (OSTI)

Many developed countries such as Canada and the United States are facing a significant infrastructure crisis. Most of their facilities have been built with little consideration of seismic design and durability issues. As ...

Gemme, Marie-Claude

2009-01-01T23:59:59.000Z

180

Seismic assessment strategies for masonry structures  

E-Print Network (OSTI)

Masonry structures are vulnerable to earthquakes, but their seismic assessment remains a challenge. This dissertation develops and improves several strategies to better understand the behavior of masonry structures under ...

DeJong, Matthew J. (Matthew Justin)

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Seismic design verification of LMFBR structures  

SciTech Connect

The report provides an assessment of the seismic design verification procedures currently used for nuclear power plant structures, a comparison of dynamic test methods available, and conclusions and recommendations for future LMFB structures.

1977-07-01T23:59:59.000Z

182

Generalization of Lambert's reflectance model  

Science Conference Proceedings (OSTI)

Lambert's model for body reflection is widely used in computer graphics. It is used extensively by rendering techniques such as radiosity and ray tracing. For several real-world objects, however, Lambert's model can prove to be a very inaccurate approximation ... Keywords: BRDF, Lambert's model, moon reflectance, reflection models, rough surfaces

Michael Oren; Shree K. Nayar

1994-07-01T23:59:59.000Z

183

MISMATCHES CREATE REFLECTIONS  

E-Print Network (OSTI)

Unlike low-power, metal-gate CMOS, high-speed 54HC/74HC devices readily drive long cable runs and backplanes. While the family maintains CMOSs traditional noise immunity, you must watch transmission-line effects in such applications. Because of 54HC/74HC high-speed CMOSs short propagation delays and fast rise and fall times, you must understand its transmission-line behavior when driving lines as short as even a foot or two, whether those lines are coaxial cables, twisted pairs or backplanes. Moreover, the devices fast edge rates increase the likelihood of crosstalk among interconnecting cables. Despite the need, however, to take design precautions that minimize adverse effects related to high-speed operation, 54HC/74HC logicunlike slower metal-gate CMOSincludes many features that suit it to driving transmission lines. For example, its symmetrical push-pull outputs result in stiff logic levels, and its high output drive allows fast bit rates. Another advantage of high-speed-CMOS designs is that they dont prove to be as difficult as those based on other high-speed logic families. In general, high-speed CMOS doesnt require the detailed attention to pc-board layout and transmission-line characteristics that Schottky TTL or ECL designs do. Furthermore, controlling unwanted reflections is easier in the CMOS designs, because 54HC/74HC devices electrostatic-protection diodes tend to clamp the reflected voltages to the power-supply levels.

unknown authors

1985-01-01T23:59:59.000Z

184

Fluid driven torsional dipole seismic source  

DOE Patents (OSTI)

A compressible fluid powered oscillating downhole seismic source device capable of periodically generating uncontaminated horizontally-propagated, shear waves is provides. A compressible fluid generated oscillation is created within the device which imparts an oscillation to a housing when the device is installed in a housing such as the cylinder of an existing downhole tool, thereby a torsional seismic source is established. Horizontal waves are transferred to the surrounding bore hole medium through downhole clamping. 4 figs.

Hardee, H.C.

1990-08-08T23:59:59.000Z

185

Seismic analysis of piping with nonlinear supports  

Science Conference Proceedings (OSTI)

The modeling and results of nonlinear time-history seismic analyses for three sizes of pipelines restrained by mechanical snubbes are presented. Numerous parametric analyses were conducted to obtain sensitivity information which identifies relative importance of the model and analysis ingredients. Special considerations for modeling the pipe clamps and the mechanical snubbers based on experimental characterization data are discussed. Comparisions are also given of seismic responses, loads and pipe stresses predicted by standard response spectra methods and the nonlinear time-history methods.

Barta, D.A.; Huang, S.N.; Severud, L.K.

1980-01-01T23:59:59.000Z

186

Forecasting Seismic Signatures of Stellar Magnetic Activity  

E-Print Network (OSTI)

For the Sun, a tight correlation between various activity measures and oscillation frequencies is well documented. For other stars, we have abundant data on magnetic activity and its changes but not yet on its seismic signature. A prediction of the activity induced frequency changes in stars based on scaling the solar relations is presented. This seismic signature of the activity should be measurable in the data expected within few years.

W. A. Dziembowski

2007-09-17T23:59:59.000Z

187

Category:Borehole Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Borehole Seismic Techniques page? Borehole Seismic Techniques page? For detailed information on Borehole Seismic Techniques as exploration techniques, click here. Category:Borehole Seismic Techniques Add.png Add a new Borehole Seismic Techniques Technique Pages in category "Borehole Seismic Techniques" The following 2 pages are in this category, out of 2 total. S Single-Well And Cross-Well Seismic V Vertical Seismic Profiling Retrieved from "http://en.openei.org/w/index.php?title=Category:Borehole_Seismic_Techniques&oldid=601962" Category: Downhole Techniques What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services OpenEI partners with a broad range of international organizations to grow

188

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al.,  

Open Energy Info (EERE)

3) 3) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Reflection Survey Activity Date Usefulness useful DOE-funding Unknown Notes The seismic reflection data are very useful and can be site specific when a profile is in the right place, but are sparse, very difficult to interpret correctly, and expensive to collect. The velocity values used are uncertain even though there are several sonic logs for the wells. A VSP, Vertical Seismic Profile, survey would significantly improve the precision of the interpretation References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada

189

Time-lapse crosswell seismic and VSP monitoring of injected CO2 ina brine aquifer  

SciTech Connect

Seismic surveys successfully imaged a small scale C02injection (1,600 tons) conducted in a brine aquifer of the Frio Formationnear Houston, Texas. These time-lapse bore-hole seismic surveys,crosswell and vertical seismic profile (VSP), were acquired to monitorthe C02 distribution using two boreholes (the new injection well and apre-existing well used for monitoring) which are 30 m apart at a depth of1500 m. The crosswell survey provided a high-resolution image of the C02distribution between the wells via tomographic imaging of the P-wavevelocity decrease (up to 500 mls). The simultaneously acquired S-wavetomography showed little change in S-wave velocity, as expected for fluidsubstitution. A rock physics model was used to estimate C02 saturationsof 10-20 percent from the P-wave velocity change. The VSP survey resolveda large (-70 percent) change in reflection amplitude for the Friohorizon. This C02 induced reflection amplitude change allowed estimationof the C02 extent beyond the monitor well and on 3 azimuths. The VSPresult is compared with numerical modeling of C02 saturations and isseismically modeled using the velocity change estimated in the crosswellsurvey.

Daley, Thomas M.; Myer, Larry R.; Peterson, J.E.; Majer, E.L.; Hoversten,G.M.

2006-05-30T23:59:59.000Z

190

Variable area light reflecting assembly  

DOE Patents (OSTI)

Device is described for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles. 9 figs.

Howard, T.C.

1986-12-23T23:59:59.000Z

191

Variable area light reflecting assembly  

DOE Patents (OSTI)

Device for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles.

Howard, Thomas C. (Raleigh, NC)

1986-01-01T23:59:59.000Z

192

Geophys. J. Int. (2000) 142, 000000 Nonlinear Bayesian joint inversion of seismic reflection  

E-Print Network (OSTI)

: Measurements in coaxial transmission lines, Water Resour. Res., 16, 574­582, 1980. van Genuchten, M. T conductivity was reported for the site (a standard deviation of 647 cm/d around a mean of 533 cm of clear acrylic plastic and sealed with rubber o-rings and lining. Prior to use, one side of the tank

Ursin, Bjørn

193

Characterization of the Virgo Seismic Environment  

E-Print Network (OSTI)

The Virgo gravitational wave detector is an interferometer (ITF) with 3km arms located in Pisa, Italy. From July to October 2010, Virgo performed its third science run (VSR3) in coincidence with the LIGO detectors. Despite several techniques adopted to isolate the interferometer from the environment, seismic noise remains an important issue for Virgo. Vibrations produced by the detector infrastructure (such as air conditioning units, water chillers/heaters, pumps) are found to affect Virgo's sensitivity, with the main coupling mechanisms being through beam jitter and scattered light processes. The Advanced Virgo (AdV) design seeks to reduce ITF couplings to environmental noise by having most vibration-sensitive components suspended and in-vacuum, as well as muffle and relocate loud machines. During the months of June and July 2010, a Guralp-3TD seismometer was stationed at various locations around the Virgo site hosting major infrastructure machines. Seismic data were examined using spectral and coherence analysis with seismic probes close to the detector. The primary aim of this study was to identify noisy machines which seismically affect the ITF environment and thus require mitigation attention. Analyzed machines are located at various distances from the experimental halls, ranging from 10m to 100m. An attempt is made to measure the attenuation of emitted noise at the ITF and correlate it to the distance from the source and to seismic attenuation models in soil.

The Virgo Collaboration; T. Accadia; F. Acernese; P. Astone; G. Ballardin; F. Barone; M. Barsuglia; A. Basti; Th. S. Bauer; M. Bebronne; M. G. Beker; A. Belletoile; M. Bitossi; M. A. Bizouard; M. Blom; F. Bondu; L. Bonelli; R. Bonnand; V. Boschi; L. Bosi; B. Bouhou; S. Braccini; C. Bradaschia; M. Branchesi; T. Briant; A. Brillet; V. Brisson; T. Bulik; H. J. Bulten; D. Buskulic; C. Buy; G. Cagnoli; E. Calloni; B. Canuel; F. Carbognani; F. Cavalier; R. Cavalieri; G. Cella; E. Cesarini; O. Chaibi; E. Chassande-Mottin; A. Chincarini; A. Chiummo; F. Cleva; E. Coccia; P. -F. Cohadon; C. N. Colacino; J. Colas; A. Colla; M. Colombini; A. Conte; M. Coughlin; J. -P. Coulon; E. Cuoco; S. DAntonio; V. Dattilo; M. Davier; R. Day; R. De Rosa; G. Debreczeni; W. Del Pozzo; M. del Prete; L. Di Fiore; A. Di Lieto; M. Di Paolo Emilio; A. Di Virgilio; A. Dietz; M. Drago; G. Endroczi; V. Fafone; I. Ferrante; F. Fidecaro; I. Fiori; R. Flaminio; L. A. Forte; J. -D. Fournier; J. Franc; S. Frasca; F. Frasconi; M. Galimberti; L. Gammaitoni; F. Garufi; M. E. Gaspar; G. Gemme; E. Genin; A. Gennai; A. Giazotto; R. Gouaty; M. Granata; C. Greverie; G. M. Guidi; J. -F. Hayau; A. Heidmann; H. Heitmann; P. Hello; P. Jaranowski; I. Kowalska; A. Krolak; N. Leroy; N. Letendre; T. G. F. Li; N. Liguori; M. Lorenzini; V. Loriette; G. Losurdo; E. Majorana; I. Maksimovic; N. Man; M. Mantovani; F. Marchesoni; F. Marion; J. Marque; F. Martelli; A. Masserot; C. Michel; L. Milano; Y. Minenkov; M. Mohan; N. Morgado; A. Morgia; S. Mosca; B. Mours; L. Naticchioni; F. Nocera; G. Pagliaroli; L. Palladino; C. Palomba; F. Paoletti; M. Parisi; A. Pasqualetti; R. Passaquieti; D. Passuello; G. Persichetti; F. Piergiovanni; M. Pietka; L. Pinard; R. Poggiani; M. Prato; G. A. Prodi; M. Punturo; P. Puppo; D. S. Rabeling; I. Racz; P. Rapagnani; V. Re; T. Regimbau; F. Ricci; F. Robinet; A. Rocchi; L. Rolland; R. Romano; D. Rosinska; P. Ruggi; B. Sassolas; D. Sentenac; L. Sperandio; R. Sturani; B. Swinkels; M. Tacca; L. Taffarello; A. Toncelli; M. Tonelli; O. Torre; E. Tournefier; F. Travasso; G. Vajente; J. F. J. van den Brand; C. Van Den Broeck; S. van der Putten; M. Vasuth; M. Vavoulidis; G. Vedovato; D. Verkindt; F. Vetrano; A. Vicere; J. -Y. Vinet; S. Vitale; H. Vocca; R. L. Ward; M. Was; M. Yvert; A. Zadrozny; J. -P. Zendri

2011-08-08T23:59:59.000Z

194

Downhole Seismic Monitoring at the Geysers  

DOE Green Energy (OSTI)

A 500-ft length, 6-level, 3-component, vertical geophone array was permanently deployed within the upper 800 ft of Unocal's well GDCF 63-29 during a plug and abandonment operation on April 7, 1998. The downhole array remains operational after a period of 1 year, at a temperature of about 150 C. Continuous monitoring and analysis of shallow seismicity (<4000 ft deep) has been conducted over that same 1-year period. The downhole array was supplemented with 4 surface stations in late-1998 and early-1999 to help constrain locations of shallow seismicity. Locations occurring within about 1 km ({approximately}3000 ft) of the array have been determined for a subset of high-frequency events detected on the downhole and surface stations for the 10-week period January 6 to March 16, 1999. These events are distinct from surface-monitored seismicity at The Geysers in that they occur predominantly above the producing reservoir, at depths ranging from about 1200 to 4000 ft depth (1450 to -1350 ft elevation). The shallow seismicity shows a northeast striking trend, similar to seismicity trends mapped deeper within the reservoir and the strike of the predominant surface lineament observed over the productive field.

Rutledge, J.T.; Anderson, T.D.; Fairbanks, T.D.; Albright, J.N.

1999-10-17T23:59:59.000Z

195

Fluid effects on seismic waves in hard rocks with fractures and in soft granular media  

SciTech Connect

When fractures in otherwise hard rocks are filled with fluids (oil, gas, water, CO{sub 2}), the type and physical state of the fluid (liquid or gas) can make a large difference in the wave speeds and attenuation properties of seismic waves. The present work summarizes methods of deconstructing theses effects of fractures, together with any fluids contained within them, on wave propagation as observed in reflection seismic data. Additional studies of waves in fluid-saturated granular media show that the behavior can be quite different from that for fractured media, since these materials are typically much softer mechanically than are the fractured rocks (i.e., having a very small drained moduli). Important fluid effects in such media are often governed as much by fluid viscosity as by fluid bulk modulus.

Berryman, James G.

2009-03-01T23:59:59.000Z

196

Fracture detection, mapping, and analysis of naturally fractured gas reservoirs using seismic technology. Final report, November 1995  

SciTech Connect

Many basins in the Rocky Mountains contain naturally fractured gas reservoirs. Production from these reservoirs is controlled primarily by the shape, orientation and concentration of the natural fractures. The detection of gas filled fractures prior to drilling can, therefore, greatly benefit the field development of the reservoirs. The objective of this project was to test and verify specific seismic methods to detect and characterize fractures in a naturally fractured reservoir. The Upper Green River tight gas reservoir in the Uinta Basin, Northeast Utah was chosen for the project as a suitable reservoir to test the seismic technologies. Knowledge of the structural and stratigraphic geologic setting, the fracture azimuths, and estimates of the local in-situ stress field, were used to guide the acquisition and processing of approximately ten miles of nine-component seismic reflection data and a nine-component Vertical Seismic Profile (VSP). Three sources (compressional P-wave, inline shear S-wave, and cross-line, shear S-wave) were each recorded by 3-component (3C) geophones, to yield a nine-component data set. Evidence of fractures from cores, borehole image logs, outcrop studies, and production data, were integrated with the geophysical data to develop an understanding of how the seismic data relate to the fracture network, individual well production, and ultimately the preferred flow direction in the reservoir. The multi-disciplinary approach employed in this project is viewed as essential to the overall reservoir characterization, due to the interdependency of the above factors.

NONE

1995-10-01T23:59:59.000Z

197

Hostile wells: the borehole seismic challenge | Open Energy Information  

Open Energy Info (EERE)

Hostile wells: the borehole seismic challenge Hostile wells: the borehole seismic challenge Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Hostile wells: the borehole seismic challenge Author William Wills Published Oil and Gas Engineer - Subsea & Seismic, 2013 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Hostile wells: the borehole seismic challenge Citation William Wills. Hostile wells: the borehole seismic challenge [Internet]. 2013. Oil and Gas Engineer - Subsea & Seismic. [cited 2013/10/01]. Available from: http://www.engineerlive.com/content/22907 Retrieved from "http://en.openei.org/w/index.php?title=Hostile_wells:_the_borehole_seismic_challenge&oldid=690045" Categories: References Geothermal References

198

Three-Dimensional Seismic Imaging of the Ryepatch Geothermal Reservoir  

E-Print Network (OSTI)

at Well 46-28, Rye Patch Geothermal Field, Pershing County,Seismic Survey, Rye Patch Geothermal Field, Pershing County,Seismic Survey, Rye Patch Geothermal Field, Pershing County,

Feighner, Mark A.

2010-01-01T23:59:59.000Z

199

Cost reduction through improved seismic design  

SciTech Connect

During the past decade, many significnt seismic technology developments have been accomplished by the United States Department of Energy (USDOE) programs. Both base technology and major projects, such as the Fast Flux Test Facility (FFTF) and the Clinch River Breeder Reactor (CRBR) plant, have contributed to seismic technology development and validation. Improvements have come in the areas of ground motion definitions, soil-structure interaction, and structural analysis methods and criteria for piping, equipment, components, reactor core, and vessels. Examples of some of these lessons learned and technology developments are provided. Then, the highest priority seismic technology needs, achievable through DOE actions and sponsorship are identified and discussed. Satisfaction of these needs are expected to make important contributions toward cost avoidances and reduced capital costs of future liquid metal nuclear plants. 23 references, 12 figures.

Severud, L.K.

1984-01-01T23:59:59.000Z

200

Seismic hazard analysis overview and executive summary  

Science Conference Proceedings (OSTI)

The Site Specific Spectra Project (SSSP) described in this report was a multi-year study funded by the US Nuclear Regulatory Commission (NRC) as part of NRC's Systematic Evaluation Program (SEP). The main objective of this project was to provide assistance to the NRC by developing estimates of the seismic hazard at the nine oldest nuclear power plant sites east of the Rocky Mountains which were included in the SEP. This volume gives brief overview of the SEP and the SSSP including a discussion of the formal elicitation of expert opinion used to obtain a subjective representation of parameters that affect seismic hazard and the development of the seismic hazard at the nine SEP facilities.

Bernreuter, D.L.; Minichino, C.

1982-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Weapons test seismic investigations at Yucca Mountain  

Science Conference Proceedings (OSTI)

Yucca Mountain, located on and adjacent to the Nevada Test Site, is being characterized as part of an ongoing effort to identify a potential high-level nuclear waste repository. This site will be subjected to seismic ground motions induced by underground nuclear explosions. A knowledge of expected ground motion levels from these tests will enable the designers to provide for the necessary structural support in the designs of the various components of the repository. The primary objective of the Weapons Test Seismic Investigation project is to develop a method to predict the ground motions expected at the repository site as a result of future weapons tests. This paper summarizes the data base presently assembled for the Yucca Mountain Project, characteristics of expected ground motions, and characterization of the two-dimensional seismic properties along paths between Yucca Mountain and the testing areas of the Nevada Test Site.

Phillips, J.S.; Shephard, L.E.; Walck, M.C.

1991-01-01T23:59:59.000Z

202

Seismic Qualification Case Study for a New Inverter  

Science Conference Proceedings (OSTI)

This report reviews and compares methods used for the seismic qualification of safety related equipment at nuclear power plants and examines an alternative, hybrid approach. The report investigates the costs and lead times for each seismic qualification approach and also discusses the seismic capacity definitions that result from the application of each qualification approach. The report includes a case study that applies the new approach to the seismic qualification of an inverter.

2007-12-17T23:59:59.000Z

203

Workshop on the Seismic Rehabilitation of Lightly Reinforced ...  

Science Conference Proceedings (OSTI)

Page 1. NISTIR5741 Proceedings, Workshop on the Seismic Rehabilitation of Lightly Reinforced Concrete Frames Gaithersburg, MD ...

2004-10-04T23:59:59.000Z

204

Modeling-Computer Simulations At Central Nevada Seismic Zone...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Pritchett, 2004) Exploration...

205

Probabilistic Seismic Hazard Analysis for Southern California Coastal Facilities  

Science Conference Proceedings (OSTI)

The overall objective of this study was to develop probabilistic seismic hazard estimates for the coastal and offshore area of Ventura, Los Angeles and Orange counties for use as a basis for the University of Southern California (USC) to develop physical models of tsunami for the coastal regions and by the California State Lands Commission (SLC) to develop regulatory standards for seismic loading and liquefaction evaluation of marine oil terminals. The probabilistic seismic hazard analysis (PSHA) was carried out by the Lawrence Livermore National Laboratory (LLNL), in several phases over a time period of two years, following the method developed by LLNL for the estimation of seismic hazards at Department Of Energy (DOE) facilities, and for 69 locations of nuclear plants in the Eastern United States, for the Nuclear Regulatory Commission (NRC). This method consists in making maximum use of all physical data (qualitative, and quantitative) and to characterize the uncertainties by using a set of alternate spatiotemporal models of occurrence of future earthquakes, as described in the SSHAC, PSHA Guidance Document (Budnitz et al., 1997), and implemented for the NRC (Savy et al., 2002). In general, estimation of seismic hazard is based not only on our understanding of the regional tectonics and detailed characterization of the faults in the area but also on the analysis methods employed and the types of physical and empirical models that are deemed appropriate for the analysis. To develop this understanding, the body of knowledge in the scientific community is sampled in a series of workshops with a group of experts representative of the entire scientific community, including geologists and seismologists from the United States Geological Survey (USGS), members of the South California Earthquake Center (SCEC), and members of academic institutions (University of California Santa-Cruz, Stanford, UC Santa Barbara, and University of Southern California), and members of consulting firms. The purpose of the workshops was to analyze and evaluate existing data and formulate tectonic models that represent all the possible and physically valid models envisioned by the group. The basic input for the PSHA was a set of alternate earthquake source characterizations and a multi-model representation of ground motion attenuation, for adequate representation of the uncertainties. In the first phase, the physical modeling enabled rigorous analysis of uncertainty that arises from a lack of full knowledge in the characterization of both earthquake sources and ground motion. The set of ground motion prediction models included models that were updated to benefit from near field data from the most recent earthquakes (Taiwan and Turkey). The calculation were performed with LLNL computer software that is based on the Cornell, 1968 analytical model, and that propagates the knowledge uncertainties using a Monte-Carlo simulation approach (see, Bernreuter et al., 1989). Although the calculation were performed for rock-site conditions and generic soil sites, only the results for rock are given here. It is assumed that development of design parameters will include a correction of the spectral shape to reflect the site specificity. The results are for the average of the two horizontal components of the ground motion. The PSHA was calculated for thirteen sites, including two sites offshore. These sites are: Catalina Island site 1, Catalina Island site 2, Goleta, Offshore Santa-Monica, Offshore San-Clemente, Port Dume, Palos Verde site 1, Palos Verde site 2, Port of Long Beach, Port of Los Angeles, Port Hueneme, San Pedro Escarpment, and Redondo Canyon. For these thirteen sites, the hazard curves in terms of probability of exceedence of the peak ground acceleration (PGA), was calculated. In addition for Port of Long Beach, Port of Los Angeles, Santa Monica, and a site Offshore, east of San Clemente the (5% damping) uniform hazard response spectra were calculated for five Return Periods (100, 500, 1000, 2000, 10,000 year Return Periods). The detailed results are

Savy, J; Foxall, B

2004-04-16T23:59:59.000Z

206

Probabilistic Seismic Hazard Analysis for Southern California Coastal Facilities  

SciTech Connect

The overall objective of this study was to develop probabilistic seismic hazard estimates for the coastal and offshore area of Ventura, Los Angeles and Orange counties for use as a basis for the University of Southern California (USC) to develop physical models of tsunami for the coastal regions and by the California State Lands Commission (SLC) to develop regulatory standards for seismic loading and liquefaction evaluation of marine oil terminals. The probabilistic seismic hazard analysis (PSHA) was carried out by the Lawrence Livermore National Laboratory (LLNL), in several phases over a time period of two years, following the method developed by LLNL for the estimation of seismic hazards at Department Of Energy (DOE) facilities, and for 69 locations of nuclear plants in the Eastern United States, for the Nuclear Regulatory Commission (NRC). This method consists in making maximum use of all physical data (qualitative, and quantitative) and to characterize the uncertainties by using a set of alternate spatiotemporal models of occurrence of future earthquakes, as described in the SSHAC, PSHA Guidance Document (Budnitz et al., 1997), and implemented for the NRC (Savy et al., 2002). In general, estimation of seismic hazard is based not only on our understanding of the regional tectonics and detailed characterization of the faults in the area but also on the analysis methods employed and the types of physical and empirical models that are deemed appropriate for the analysis. To develop this understanding, the body of knowledge in the scientific community is sampled in a series of workshops with a group of experts representative of the entire scientific community, including geologists and seismologists from the United States Geological Survey (USGS), members of the South California Earthquake Center (SCEC), and members of academic institutions (University of California Santa-Cruz, Stanford, UC Santa Barbara, and University of Southern California), and members of consulting firms. The purpose of the workshops was to analyze and evaluate existing data and formulate tectonic models that represent all the possible and physically valid models envisioned by the group. The basic input for the PSHA was a set of alternate earthquake source characterizations and a multi-model representation of ground motion attenuation, for adequate representation of the uncertainties. In the first phase, the physical modeling enabled rigorous analysis of uncertainty that arises from a lack of full knowledge in the characterization of both earthquake sources and ground motion. The set of ground motion prediction models included models that were updated to benefit from near field data from the most recent earthquakes (Taiwan and Turkey). The calculation were performed with LLNL computer software that is based on the Cornell, 1968 analytical model, and that propagates the knowledge uncertainties using a Monte-Carlo simulation approach (see, Bernreuter et al., 1989). Although the calculation were performed for rock-site conditions and generic soil sites, only the results for rock are given here. It is assumed that development of design parameters will include a correction of the spectral shape to reflect the site specificity. The results are for the average of the two horizontal components of the ground motion. The PSHA was calculated for thirteen sites, including two sites offshore. These sites are: Catalina Island site 1, Catalina Island site 2, Goleta, Offshore Santa-Monica, Offshore San-Clemente, Port Dume, Palos Verde site 1, Palos Verde site 2, Port of Long Beach, Port of Los Angeles, Port Hueneme, San Pedro Escarpment, and Redondo Canyon. For these thirteen sites, the hazard curves in terms of probability of exceedence of the peak ground acceleration (PGA), was calculated. In addition for Port of Long Beach, Port of Los Angeles, Santa Monica, and a site Offshore, east of San Clemente the (5% damping) uniform hazard response spectra were calculated for five Return Periods (100, 500, 1000, 2000, 10,000 year Return Periods). The detailed results are

Savy, J; Foxall, B

2004-04-16T23:59:59.000Z

207

Coincident P and Sh reflections from basement rocks at Coso geothermal  

Open Energy Info (EERE)

Coincident P and Sh reflections from basement rocks at Coso geothermal Coincident P and Sh reflections from basement rocks at Coso geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Coincident P and Sh reflections from basement rocks at Coso geothermal field Details Activities (2) Areas (1) Regions (0) Abstract: In mid-1989 the authors designed and collected four seismic reflection/refraction profiles that addressed the crustal structure of the Coso geothermal field. The two main east-west and north-south profiles crossed at the southeasternmost base of Sugar Loaf Mountain. Both in-line and cross-line Vibroseis and explosion data were recorded on each of these approximately 12-mi lines. This was accomplished with the simultaneous operation of two 1024-channel sign bit recording systems while four

208

Down-hole periodic seismic generator  

DOE Patents (OSTI)

A down hole periodic seismic generator system is disclosed for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

Hardee, H.C.; Hills, R.G.; Striker, R.P.

1982-10-28T23:59:59.000Z

209

Seismic isolation systems with distinct multiple frequencies  

DOE Patents (OSTI)

The present invention relates generally to a method and apparatus for supporting a structure such as a building, bridge, or power plant such that it is isolated from seismic vibratory ground motion. More particularly, the present invention relates to a method and apparatus for supporting a structure by an isolation system which will not allow large dynamic loads to be transmitted to the supported structure due to seismic motions which have damaging energy at frequencies at or near the natural frequency of the structure and the overall structural systems. 4 figs.

Wu, Ting-shu; Seidensticker, R.W.

1989-04-14T23:59:59.000Z

210

Advanced motor driven clamped borehole seismic receiver  

DOE Patents (OSTI)

A borehole seismic tool is described including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric motor in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

Engler, B.P.; Sleefe, G.E.; Striker, R.P.

1993-02-23T23:59:59.000Z

211

Measurment and Interpretation of Seismic Attenuation for Hydrocarbon Exploration  

Science Conference Proceedings (OSTI)

This research project is the combined effort of several leading research groups. Advanced theoretical work is being conducted at the Lawrence Berkeley National Laboratory. Here, the fundamental controls on loss mechanisms are being examined, primarily by use of numerical models of heterogeneous porous media. At the University of California, Berkeley, forward modeling is combined with direct measurement of attenuation. This forward modeling provides an estimate of the influence of 1/Q on the observed seismic signature. Direct measures of losses in Vertical Seismic Profiles (VSPs) indicate mechanisms to separate scattering versus intrinsic losses. At the Colorado School of Mines, low frequency attenuation measurements are combined with geologic models of deep water sands. ChevronTexaco is our corporate cosponsor and research partner. This corporation is providing field data over the Genesis Field, Gulf of Mexico. In addition, ChevronTexaco has rebuilt and improved their low frequency measurement system. Soft samples representative of the Genesis Field can now be measured for velocities and attenuations under reservoir conditions. Throughout this project we have: Assessed the contribution of mechanical compaction on time-lapse monitoring; Developed and tested finite difference code to model dispersion and attenuation; Heterogeneous porous materials were modeled and 1/Q calculated vs. frequency; 'Self-affine' heterogeneous materials with differing Hurst exponent modeled; Laboratory confirmation was made of meso-scale fluid motion influence on 1/Q; Confirmed theory and magnitude of layer-based scattering attenuation at Genesis and at a shallow site in California; Scattering Q's of between 40 and 80 were obtained; Measured very low intrinsic Q's (2-20) in a partially saturated vadose zone VSP; First field study to separate scattering and intrinsic attenuation in real data set; Revitalized low frequency device at ChevronTexaco's Richmond lab completed; First complete frequency dependent measurements on Berea sandstones from dry to various saturations (brine and decane); Frequency dependent forward modeling code is running, and tested on a couple of Cases--derives frequency dependent reflectivity from porosity based logs; Genesis seismic data obtained but is on hold until forward modeling is complete; Boundary and end effects modeled for soft material measurements at CSM; and Numerous papers published or submitted and presentations made.

Michael Batzle; Luca Duranti; James Rector; Steve Pride

2007-12-31T23:59:59.000Z

212

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN  

Open Energy Info (EERE)

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Details Activities (1) Areas (1) Regions (0) Abstract: High precision earthquake locations and subsurface velocity structure provide potential insights into fracture system geometry, fluid conduits and fluid compartmentalization critical to geothermal reservoir management. We analyze 16 years of seismicity to improve hypocentral locations and simultaneously invert for the seismic velocity structure within the Coso Geothermal Field (CGF). The CGF has been continuously

213

Distributed computing of Seismic Imaging Algorithms  

E-Print Network (OSTI)

The primary use of technical computing in the oil and gas industries is for seismic imaging of the earth's subsurface, driven by the business need for making well-informed drilling decisions during petroleum exploration and production. Since each oil/gas well in exploration areas costs several tens of millions of dollars, producing high-quality seismic images in a reasonable time can significantly reduce the risk of drilling a "dry hole". Similarly, these images are important as they can improve the position of wells in a billion-dollar producing oil field. However seismic imaging is very data- and compute-intensive which needs to process terabytes of data and require Gflop-years of computation (using "flop" to mean floating point operation per second). Due to the data/computing intensive nature of seismic imaging, parallel computing are used to process data to reduce the time compilation. With introducing of Cloud computing, MapReduce programming model has been attracted a lot of attention in parallel and di...

Emami, Masnida; Jaberi, Nasrin

2012-01-01T23:59:59.000Z

214

RISC-3 Seismic Assessment Guidelines: Preliminary Report  

Science Conference Proceedings (OSTI)

This report provides guidance for establishing reasonable confidence that structures, systems, and components (SSCs) of nuclear plants, categorized as RISC-3 under the 10 CFR 50.69 Risk Informed Safety Categorization Process, will perform their required functions under design basis seismic conditions.

2004-12-15T23:59:59.000Z

215

Seismic Probabilistic Risk Assessment Implementation Guide  

Science Conference Proceedings (OSTI)

The "SPRA Implementation Guide" provides utilities with in-depth guidelines for seismic probabilistic risk assessments (SPRAs). These cost-effective and practical procedures for SPRA support a variety of purposes, including risk-informed/performance-based (RI/PB) applications.

2003-12-31T23:59:59.000Z

216

Nevada Test Site seismic: telemetry measurements  

SciTech Connect

The feasibility and limitations of surface-to-tunnel seismic telemetry at the Nevada Test Site were explored through field measurements using current technology. Range functions for signaling were determined through analysis of monofrequency seismic signals injected into the earth at various sites as far as 70 km (43 mi) from installations of seismometers in the G-Tunnel complex of Rainier Mesa. Transmitted signal power at 16, 24, and 32 Hz was measured at two locations in G-Tunnel separated by 670 m (2200 ft). Transmissions from 58 surface sites distributed primarily along three azimuths from G-Tunnel were studied. The G-Tunnel noise environment was monitored over the 20-day duration of the field tests. Noise-power probability functions were calculated for 20-s and 280-s seismic-record populations. Signaling rates were calculated for signals transmitted from superior transmitter sites to G-Tunnel. A detection threshold of 13 dB re 1 nm/sup 2/ displacement power at 95% reliability was demanded. Consideration of field results suggests that even for the frequency range used in this study, substantially higher signaling rates are likely to be obtained in future work in view of the present lack of information relevant to hardware-siting criteria and the seismic propagation paths at the Nevada Test Site. 12 references.

Albright, J N; Parker, L E; Horton, E H

1983-08-01T23:59:59.000Z

217

Borehole seismic monitoring of seismic stimulation at OccidentalPermian Ltd's -- South Wason Clear Fork Unit  

SciTech Connect

Seismic stimulation is a proposed enhanced oil recovery(EOR) technique which uses seismic energy to increase oil production. Aspart of an integrated research effort (theory, lab and field studies),LBNL has been measuring the seismic amplitude of various stimulationsources in various oil fields (Majer, et al., 2006, Roberts,et al.,2001, Daley et al., 1999). The amplitude of the seismic waves generatedby a stimulation source is an important parameter for increased oilmobility in both theoretical models and laboratory core studies. Theseismic amplitude, typically in units of seismic strain, can be measuredin-situ by use of a borehole seismometer (geophone). Measuring thedistribution of amplitudes within a reservoir could allow improved designof stimulation source deployment. In March, 2007, we provided in-fieldmonitoring of two stimulation sources operating in Occidental (Oxy)Permian Ltd's South Wasson Clear Fork (SWCU) unit, located near DenverCity, Tx. The stimulation source is a downhole fluid pulsation devicedeveloped by Applied Seismic Research Corp. (ASR). Our monitoring used aborehole wall-locking 3-component geophone operating in two nearbywells.

Daley, Tom; Majer, Ernie

2007-04-30T23:59:59.000Z

218

SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS | Open Energy Information  

Open Energy Info (EERE)

SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS Details Activities (1) Areas (1) Regions (0) Abstract: Large velocity contrasts are regularly encountered in geothermal fields due to poorly consolidated and hydro-thermally altered rocks. The appropriate processing of seismic data is therefore crucial to delineate the geological structure. To assess the benefits of surface seismic surveys in such settings, we applied different migration procedures to image a synthetic reservoir model and seismic data from the Coso Geothermal Field. We have shown that the two-dimensional migration of synthetic seismic data from a typical reservoir model resolves the geological structure very well

219

Induced seismicity associated with enhanced geothermal system  

Science Conference Proceedings (OSTI)

Enhanced Geothermal Systems (EGS) offer the potential to significantly add to the world energy inventory. As with any development of new technology, some aspects of the technology has been accepted by the general public, but some have not yet been accepted and await further clarification before such acceptance is possible. One of the issues associated with EGS is the role of microseismicity during the creation of the underground reservoir and the subsequent extraction of the energy. The primary objectives of this white paper are to present an up-to-date review of the state of knowledge about induced seismicity during the creation and operation of enhanced geothermal systems, and to point out the gaps in knowledge that if addressed will allow an improved understanding of the mechanisms generating the events as well as serve as a basis to develop successful protocols for monitoring and addressing community issues associated with such induced seismicity. The information was collected though literature searches as well as convening three workshops to gather information from a wide audience. Although microseismicity has been associated with the development of production and injection operations in a variety of geothermal regions, there have been no or few adverse physical effects on the operations or on surrounding communities. Still, there is public concern over the possible amount and magnitude of the seismicity associated with current and future EGS operations. It is pointed out that microseismicity has been successfully dealt with in a variety of non-geothermal as well as geothermal environments. Several case histories are also presented to illustrate a variety of technical and public acceptance issues. It is concluded that EGS Induced seismicity need not pose any threat to the development of geothermal resources if community issues are properly handled. In fact, induced seismicity provides benefits because it can be used as a monitoring tool to understand the effectiveness of the EGS operations and shed light on the mechanics of the reservoir.

Majer, Ernest; Majer, Ernest L.; Baria, Roy; Stark, Mitch; Oates, Stephen; Bommer, Julian; Smith, Bill; Asanuma, Hiroshi

2006-09-26T23:59:59.000Z

220

Radar Reflectivity of Cumulus Clouds  

Science Conference Proceedings (OSTI)

The relationships between the radar reflectivity factor Z and significant physical cloud parameters are studied from a dataset collected with an instrumented aircraft in non- or very weakly precipitating warm clouds. The cloud droplet populations ...

Henri Sauvageot; Jilani Omar

1987-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Ultrasonic flowmetering with reflected pulses  

E-Print Network (OSTI)

A transit time type ultrasonic flowmeter was tested with two different reflected pulse trajectories in flowing air at ambient conditions against an orifice meter. The flowmeter was designed to be highly accurate, to require ...

Hoyle, David C.

1984-01-01T23:59:59.000Z

222

Ground Reflections and Green Thunderstorms  

Science Conference Proceedings (OSTI)

It has been suggested that green light often observed in association with severe thunderstorms is caused by sunlight being reflected onto the cloud by green vegetation. Colorimetric observations were recorded of green-colored and blue-colored ...

Frank W. Gallagher III

2001-04-01T23:59:59.000Z

223

5h Other Seismic Stakeholder InteractionsGlenn Kelly- Appendix 5 Seismic.wpd Page 3  

E-Print Network (OSTI)

decommissioning plants. During the course of the workshop, presentations by the NRC and the industry concluded that spent fuel pools possess substantial capability beyond their design basis to with stand seismic events but that variations in seismic capacity existed due to plant specific designs and locations. The consensus was that the risk was low enough that precise quantification was not necessary to support exemption requests but that this needed to be confirmed on a plant specific basis with deterministic criteria. It was recommended that a simple spent fuel pool (SFP) vulnerability check list be developed to provide additional assurance that no beyond-design-basis seismic structural vulnerabilities exist at decommissioning plants. Enclosed for your review is the "Seismic Screening Criteria For Assessing Potential Pool Vulnerabilities At Decommissioning Plants." Please contact me at (202) 739-8110 or by e-mail (apn@.nei.org) if you have any questions or if a meeting should be scheduled to discuss the enclosed seismic checklist.

Glenn Kelly Aee Attached; George Hubbard; Aee Attached; Glenn Kelly; Alan Nelson; Alan Nelson

2000-01-01T23:59:59.000Z

224

Reflection Survey At Rye Patch Area (Feighner, Et Al., 1999) | Open Energy  

Open Energy Info (EERE)

Feighner, Et Al., 1999) Feighner, Et Al., 1999) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Rye Patch Area (Feighner, Et Al., 1999) Exploration Activity Details Location Rye Patch Area Exploration Technique Reflection Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Because the results of the VSP indicated apparent reflections, TGI proceeded with the collection of 3.0 square miles of 3-D surface seismic data over the Rye Patch reservoir. The data acquisition (which included the use of LBNL's three-component high temperature borehole geophone in well 44-28) was accomplished in August 1998. Initial processed results provided by the subcontractor Subsurface Exploration Co. (SECO) were delivered to TGI in December 1998. After the initial analysis of SECO's results, it was

225

Did 1998 Reflect Structural Change?  

Gasoline and Diesel Fuel Update (EIA)

Did 1998 Reflect Structural Change? Did 1998 Reflect Structural Change? 5/17/99 Click here to start Table of Contents PPT Slide Did 1998 Reflect Structural Change? Demand U.S. Propane Demand Sectors (1996) PPT Slide 1998 Propane Prices Fell with Crude Oil PPT Slide Warm Weather Behind Demand Decline 1998 Warm Weather Kept Demand Down Supply Propane Production Fell in 1998 1998 Propane Net Imports Increased Algeria Was Major Source of ‘98 Import Increase U.S. Chemical Use & Large Storage Attracts Excess Propane Petroleum & Propane Market Over Supply Average Stock Levels: Crude Market & Propane Futures Market Incentives to Build Petroleum Stocks New “Structure” or Cycle? Near-Term Future Large January Draw Did Not Remove Excess How Might Excess Stocks Decline? Near Term U.S. Propane Production

226

Seismic Emissions Surveys | Open Energy Information  

Open Energy Info (EERE)

Emissions Surveys Emissions Surveys Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Seismic Emissions Surveys Abstract With recent improvements in acquiring, processing and interpreting data, seismic ground noise provides a valuable tool for geothermal exploration. A time domain beam steering array processing technique is employed. This process eliminates the occurrence of false anomalies caused by local geologic amplification effects. Surveys of this type are used to located naturally fractured reservoirs. Results form Dixie Valley and Desert Peak, Nevada correlate well with the location of productive wells or known geology. Authors Katz and Lewis J. Published Journal Geothermal Resources Council Transactions, 1984 DOI Not Provided Check for DOI availability: http://crossref.org

227

Definition: Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Seismic methods provide information regarding the elastic properties of the subsurface through the measurement of the propagation velocity of elastic waves.[1] View on Wikipedia Wikipedia Definition Seismology /saɪzˈmɒlədʒi/ is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies. The field also includes studies of earthquake effects, such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, oceanic, atmospheric, and artificial processes (such as explosions). A related field that uses geology to infer information regarding past earthquakes is paleoseismology. A recording of earth motion as a function of time is called a seismogram. A seismologist

228

Seismic monitoring at the Geysers Geothermal Field  

DOE Green Energy (OSTI)

This report summarizes the efforts of LBL to utilize MEQ data in reservoir definition as well as in evaluating its performance. Results of the study indicate that the velocity and attenuation variations correlate with the known geology of the field. At the NW Geysers, high velocity anomalies correspond to metagraywacke and greenstone units while low velocity anomalies seem to be associated with Franciscan melanges. Low Vp/Vs and high attenuation delineate the steam reservoir suggesting undersaturation of the reservoir rocks. Ongoing monitoring of Vp/Vs may be useful in tracking the expansion of the steam zone with time. Spatial and temporal patterns of seismicity exhibit compelling correlation with geothermal exploitation. Clusters of MEQs occur beneath active injection wells and appear to shift with changing injection activities. High resolution MEQ locations hold promise for inferring fluid flow paths, especially in tracking injectate. This study has demonstrated that continuous seismic monitoring may be useful as an active reservoir management tool.

Romero, A.E. Jr.; Kirkpatrick, A.; Majer, E.L.; Peterson, J.E. Jr.

1994-09-01T23:59:59.000Z

229

Seismic behavior of geogrid reinforced slag wall  

Science Conference Proceedings (OSTI)

Flexible retaining structures are known with their high performance under earthquake loads. In geogrid reinforced walls the performance of the fill material and the interface of the fill and geogrid controls the performance. Geosynthetic reinforced walls in seismic regions must be safe against not only static forces but also seismic forces. The objective of this study is to determine the behavior of a geogrid reinforced slag wall during earthquake by using shaking table experiments. This study is composed of three stages. In the first stage the physical properties of the material to be used were determined. In the second part, a case history involving the use of slag from steel industry in the construction of geogrid reinforced wall is presented. In the third stage, the results of shaking table tests conducted using model geogrid wall with slag are given. From the results, it is seen that slag can be used as fill material for geogrid reinforced walls subjected to earthquake loads.

Edincliler, Ayse [Bogazici University, Kandilli Observatory and Earthquake Research Institute, Department of Earthquake Engineering, Cengelkoey-Istanbul (Turkey); Baykal, Gokhan; Saygili, Altug [Bogazici University, Department of Civil Engineering, Bebek-Istanbul (Turkey)

2008-07-08T23:59:59.000Z

230

Seismic responses of unanchored electrode storage fixtures  

SciTech Connect

Two anchored electrode storage fixtures will be installed in the process cell of the Integral Fast Reactor`s Fuel Cycle Facility at ANL-W in Idaho. In addition to the concerns for structural integrity, the potential for uplifting and tipping of the fixtures during the design basis earthquake must also be examined. In the analysis, a response-spectrum method was employed to investigate tipping, while a static approach was used for the structural-integrity evaluations. The results show that the combined stresses from seismic and other loads are within the allowables permitted by the design codes. The overall vertical seismic reaction forces at the leveling pads are compressive, implying that the fixtures will remain in contact with the floor. No uplifting or tipping of the fixture will occur during the design basis earthquake.

Ting-shu Wu; Blomquist, C.A.; Haupt, H.J.; Herceg, J.E.

1993-06-01T23:59:59.000Z

231

Evaluation of borehole electromagnetic and seismic detection of fractures  

DOE Green Energy (OSTI)

Experiments were conducted to establish the feasibility of downhole high-frequency techniques for location of fractures in the vicinity of boreholes. An existing flame-cut slot in granite was filled with salt water to simulate a brine-filled fracture. The first method used an electromagnetic wave at 30 to 300 MHz, vhf frequencies. A transmitter consisting of a phased dual-dipole array arranged to provide a directional signal toward the fracture was installed in a borehole opposite the fracture. A receiver was also located in the same borehole. The radar returns from the simulated fracture were detectable in boreholes located at distances of up to 12 meters from the fracture. These results indicate for the first time the feasibility of a downhole vhf radar for use in a single borehole for detection of fractures located away from the borehole. Similar experiments were also conducted using seismic waves at 4.5 to 6 KHz. The transmitter and the receiver in this case were located in separate boreholes. During this experiment, reflections from the slot were obtained only with the transducers oriented for shear wave illumination and detection. These results suggest that a high-frequency shear wave can also be used to detect fractures away from a borehole.

Chang, H.T.; Suhler, S.A.; Owen, T.E.

1984-02-01T23:59:59.000Z

232

Savannah River Site disaggregated seismic spectra  

SciTech Connect

The objective of this technical note is to characterize seismic ground motion at the Savannah River Site (SRS) by postulated earthquakes that may impact facilities at the site. This task is accomplished by reviewing the deterministic and probabilistic assessments of the seismic hazard to establish the earthquakes that control the hazard to establish the earthquakes that control the hazard at the site and then evaluate the associated seismic ground motions in terms of response spectra. For engineering design criteria of earthquake-resistant structures, response spectra serve the function of characterizing ground motions as a function of period or frequency. These motions then provide the input parameters that are used in the analysis of structural response. Because they use the maximum response, the response spectra are an inherently conservative design tool. Response spectra are described in terms of amplitude, duration, and frequency content, and these are related to source parameters, travel path, and site conditions. Studies by a number of investigators have shown by statistical analysis that for different magnitudes the response spectrum values are different for differing periods. These facts support Jennings' position that using different shapes of design spectra for earthquakes of different magnitudes and travel paths is a better practice than employing a single, general-purpose shape. All seismic ground motion characterization results indicate that the PGA is controlled by a local event with M[sub w] < 6 and R < 30km. The results also show that lower frequencies are controlled by a larger, more distant event, typically the Charleston source. The PGA of 0.2 g, based originally on the Blume study, is consistent with LLNL report UCRL-15910 (1990) and with the DOE position on LLNL/EPRI.

Stephenson, D.E.

1993-02-01T23:59:59.000Z

233

Savannah River Site disaggregated seismic spectra  

SciTech Connect

The objective of this technical note is to characterize seismic ground motion at the Savannah River Site (SRS) by postulated earthquakes that may impact facilities at the site. This task is accomplished by reviewing the deterministic and probabilistic assessments of the seismic hazard to establish the earthquakes that control the hazard to establish the earthquakes that control the hazard at the site and then evaluate the associated seismic ground motions in terms of response spectra. For engineering design criteria of earthquake-resistant structures, response spectra serve the function of characterizing ground motions as a function of period or frequency. These motions then provide the input parameters that are used in the analysis of structural response. Because they use the maximum response, the response spectra are an inherently conservative design tool. Response spectra are described in terms of amplitude, duration, and frequency content, and these are related to source parameters, travel path, and site conditions. Studies by a number of investigators have shown by statistical analysis that for different magnitudes the response spectrum values are different for differing periods. These facts support Jennings` position that using different shapes of design spectra for earthquakes of different magnitudes and travel paths is a better practice than employing a single, general-purpose shape. All seismic ground motion characterization results indicate that the PGA is controlled by a local event with M{sub w} < 6 and R < 30km. The results also show that lower frequencies are controlled by a larger, more distant event, typically the Charleston source. The PGA of 0.2 g, based originally on the Blume study, is consistent with LLNL report UCRL-15910 (1990) and with the DOE position on LLNL/EPRI.

Stephenson, D.E.

1993-02-01T23:59:59.000Z

234

Development Of Active Seismic Vector-Wavefield Imaging Technology For  

Open Energy Info (EERE)

Of Active Seismic Vector-Wavefield Imaging Technology For Of Active Seismic Vector-Wavefield Imaging Technology For Geothermal Applications Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Development Of Active Seismic Vector-Wavefield Imaging Technology For Geothermal Applications Details Activities (2) Areas (2) Regions (0) Abstract: This report describes the development and testing of vector-wavefield seismic sources that can generate shear (S) waves that may be valuable in geothermal exploration and reservoir characterization. Also described is a 3-D seismic data-processing effort to create images of Rye Patch geothermal reservoir from 3-D sign-bit data recorded over the geothermal prospect. Two seismic sources were developed and tested in this study that can be used to illuminate geothermal reservoirs with S-waves.

235

Statistical study of seismicity associated with geothermal reservoirs in  

Open Energy Info (EERE)

study of seismicity associated with geothermal reservoirs in study of seismicity associated with geothermal reservoirs in California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Statistical study of seismicity associated with geothermal reservoirs in California Details Activities (5) Areas (5) Regions (0) Abstract: Statistical methods are outlined to separate spatially, temporally, and magnitude-dependent portions of both the random and non-random components of the seismicity. The methodology employed compares the seismicity distributions with a generalized Poisson distribution. Temporally related events are identified by the distribution of the interoccurrence times. The regions studied to date include the Imperial Valley, Coso, The Geysers, Lassen, and the San Jacinto fault. The spatial characteristics of the random and clustered components of the seismicity

236

Use of experience data for DOE seismic evaluations  

SciTech Connect

As dictated by DOE Order 5480.28, seismic evaluations of essential systems and components at DOE facilities will be conducted over the next several years. For many of these systems and components, few, if any, seismic requirements applied to the original design, procurement, installation, and maintenance process. Thus the verification of the seismic adequacy of existing systems and components presents a difficult challenge. DOE has undertaken development of the criteria and procedures for these seismic evaluations that will maximize safety benefits in a timely and cost effective manner. As demonstrated in previous applications at DOE facilities and by the experience from the commercial nuclear power industry, use of experience data for these evaluations is the only viable option for most existing systems and components. This paper describes seismic experience data, the needs at DOE facilities, the precedent of application at nuclear power plants and DOE facilities, and the program being put in place for the seismic verification task ahead for DOE.

Barlow, M.W. [Westinghouse Savannah River Co., Aiken, SC (United States); Budnitz, R. [Future Resources Associates, Inc., Berkeley, CA (United States); Eder, S.J. [EQE Engineering Consultants, San Francisco, CA (United States); Eli, M.W. [Lawrence Livermore National Lab., CA (United States)

1993-09-30T23:59:59.000Z

237

Short-Period Seismic Noise in Vorkuta (Russia)  

SciTech Connect

Cultural development of new subpolar areas of Russia is associated with a need for detailed seismic research, including both mapping of regional seismicity and seismic monitoring of specific mining enterprises. Of special interest are the northern territories of European Russia, including shelves of the Kara and Barents Seas, Yamal Peninsula, and the Timan-Pechora region. Continuous seismic studies of these territories are important now because there is insufficient seismological knowledge of the area and an absence of systematic data on the seismicity of the region. Another task of current interest is the necessity to consider the seismic environment in the design, construction, and operation of natural gas extracting enterprises such as the construction of the North European Gas Pipeline. Issues of scientific importance for seismic studies in the region are the complex geodynamical setting, the presence of permafrost, and the complex tectonic structure. In particular, the Uralian Orogene (Fig. 1) strongly affects the propagation of seismic waves. The existing subpolar seismic stations [APA (67,57{sup o}N; 33,40{sup o}E), LVZ (67,90{sup o}N; 34,65{sup o}E), and NRIL (69,50{sup o}N; 88,40{sup o}E)] do not cover the extensive area between the Pechora and Ob Rivers (Fig. 1). Thus seismic observations in the Vorkuta area, which lies within the area of concern, represent a special interest. Continuous recording at a seismic station near the city of Vorkuta (67,50{sup o}N; 64,11{sup o}E) [1] has been conducted since 2005 for the purpose of regional seismic monitoring and, more specifically, detection of seismic signals caused by local mining enterprises. Current surveys of local seismic noise [7,8,9,11], are particularly aimed at a technical survey for the suitability of the site for installation of a small-aperture seismic array, which would include 10-12 recording instruments, with the Vorkuta seismic station as the central element. When constructed, this seismic array will considerably improve the recording capacity of regional and local seismic events. It will allow detection of signatures of seismic waves propagating in submeridional and sublatitudinal directions. The latter is of special interest not only to access the influence of the Urals on propagation patterns of seismic waves, but also to address other questions, such as the structure and dynamic characteristics of the internal dynamo of the Earth [9,13]. Recording seismic waves at low angular distances from seismically active subpolar zones will allow us to collect data on vortical and convective movements in subpolar lithosphere blocks and at the boundary of the inner core of the Earth, possibly giving essential clues to the modeling of the Earth's electromagnetic field [3,13]. The present study considers basic features of seismic noise at the Vorkuta station obtained through the analysis of seismic records from March, 2006 till December, 2007.

Kishkina, S B; Spivak, A A; Sweeney, J J

2008-05-15T23:59:59.000Z

238

Seismic detection of fractured Devonian shale reservoir. Annual report, July 1985-June 1986  

SciTech Connect

Interpretation of seismic data over the Cottageville gas field in West Virginia reveals the presence of numerous changes in reflection character across the top of the Lower Huron shales. Production from the Lower Huron is fracture-controlled, and some of the more-pronounced changes in amplitude and shape occur in the more-productive areas of the field. Model studies indicate that these changes are related to the development of low-impedance intervals that extend into the overlying shales of the Middle Huron. Analysis of geophysical logs indicates that these differences are not produced by lithologic variability in the shale. Hence, the observed changes in reflection character are believed to be associated with intense fracturing. Studies here suggest that the analysis of seismic data can be combined with other data to reduce the risk associated with exploration and development of Devonian shale gas resources. Final open-flow of gas and geologic structure from >4000 shale gas wells in eastern Kentucky outlines two high-flow areas. Interrelationships between geologic structure and gas flow are direct in one, but they are complex and unresolved in the other. Linear, steep flow gradients and the interrelationships of high-flow to structure confirm the importance of tectonic fracture permeability to shale productivity.

Wilson, T.H.; Shumaker, R.C.; Sims, C.S.

1986-07-01T23:59:59.000Z

239

Aging of reflective roofs: soot deposition  

NLE Websites -- All DOE Office Websites (Extended Search)

Aging of reflective roofs: soot deposition Title Aging of reflective roofs: soot deposition Publication Type Journal Article Year of Publication 2002 Authors Berdahl, Paul, Hashem...

240

Industry Approach to Seismic Severe Accident Policy Implementation  

Science Conference Proceedings (OSTI)

This report provides utilities with industry recommended guidelines for cost-effective seismic evaluation of nuclear power plants in response to NRC Generic Letter 88-20. Guidance is provided on application of seismic probabilistic risk assessment and seismic margin methods for full-, focused-, and reduced-scope evaluations. It provides strategies for coordinating these evaluations with similar reviews needed for resolution of Unresolved Safety Issue (USI) A-46.

1991-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Teleseismic-Seismic Monitoring At Kilauea Southwest Rift And...  

Open Energy Info (EERE)

Flank Area (Wyss, Et Al., 2001) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Kilauea Southwest Rift And...

242

Tube-wave Seismic Imaging and Monitoring Method for Oil ...  

Valeri Korneev at Berkeley National Lab has developed a low cost method for real-time seismic monitoring of underground fluid reservoirs based on tube-wave analysis.

243

Tube-wave Seismic Imaging and Monitoring Method for Oil ...  

Tube-wave Seismic Imaging and Monitoring Method for Oil Reservoirs and Aquifers Lawrence Berkeley National Laboratory. Contact LBL About This Technology

244

Thermal Gradient Holes At Central Nevada Seismic Zone Region...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At Central Nevada Seismic Zone Region (Pritchett, 2004) Exploration...

245

Development Of Active Seismic Vector-Wavefield Imaging Technology...  

Open Energy Info (EERE)

This report describes the development and testing of vector-wavefield seismic sources that can generate shear (S) waves that may be valuable in geothermal exploration and...

246

Teleseismic-Seismic Monitoring At Newberry Caldera Area (DOE...  

Open Energy Info (EERE)

Newberry Caldera Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Newberry Caldera Area (DOE GTP)...

247

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION...  

Open Energy Info (EERE)

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

248

Statistical study of seismicity associated with geothermal reservoirs...  

Open Energy Info (EERE)

reservoirs in California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Statistical study of seismicity associated with geothermal reservoirs in California...

249

Geothermal: Sponsored by OSTI -- Seismic Technology Adapted to...  

Office of Scientific and Technical Information (OSTI)

Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Final Report Geothermal Technologies Legacy Collection HelpFAQ...

250

Microsoft Word - Calpine EGS_Seismic Eval Final.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

of the Environmental Impacts of Induced Seismicity at the Calpine Enhanced Geothermal System Project, The Geysers, California prepared for RMT, Inc. 4 West Fourth Avenue,...

251

APPENDIX J: STATEMENT OF COMPLIANCE WITH DOE SEISMICITY PROTOCOL  

NLE Websites -- All DOE Office Websites (Extended Search)

compliance with the "Protocol for Induced Seismicity Associated with Enhanced Geothermal Systems". Calpine Corporation and other Geysers geothermal operators have long been...

252

Advanced Seismic data Analysis Program (The "Hot Pot Project...  

Open Energy Info (EERE)

seismic data to locate deep geothermal structures. Awardees (Company Institution) OSKI Energy, LLC Awardee Website http:www.oskienergy.com Partner 1 Optim, Inc Partner 2...

253

Injection monitoring with seismic arrays and adaptive noise cancellation  

DOE Green Energy (OSTI)

Although the application of seismic methods, active and passive, to monitor in-situ reservoir stimulation processes is not new, seismic arrays and array processing technology coupled with a new noise cancellation method has not been attempted. Successful application of seismic arrays to passively monitor in-situ reservoir stimulation processes depends on being able to sufficiently cancel the expected large amplitude background seismic noise typical of an oil or geothermal production environment so that small amplitude seismic signals occurring at depth can be detected and located. This report describes the results of a short field experiment conducted to test both the application of seismic arrays for in-situ reservoir stimulation monitoring and the active noise cancellation technique in a real reservoir production environment. Although successful application of these techniques to in-situ reservoir stimulation monitoring would have the greatest payoff in the oil industry, the proof-of-concept field experiment site was chosen to be the Geysers geothermal field in northern California. This site was chosen because of known high seismicity rates, a relatively shallow production depth, cooperation and some cost sharing the UNOCAL Oil Corporation, and the close proximity of the site to LLNL. The body of this report describes the Geysers field experimental configuration and then discusses the results of the seismic array processing and the results of the seismic noise cancellation followed by a brief conclusion. 2 refs., 11 figs.

Harben, P.E.; Harris, D.B.; Jarpe, S.P.

1991-01-01T23:59:59.000Z

254

Modeling-Computer Simulations At Central Nevada Seismic Zone...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Exploration...

255

Modeling-Computer Simulations At Central Nevada Seismic Zone...  

Open Energy Info (EERE)

Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Blackwell, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

256

Time-dependent seismic tomography and its application to the...  

Open Energy Info (EERE)

changes in Earth structure are commonly determined using local earthquake tomography computer programs that invert multiple seismic-wave arrival time data sets separately and...

257

Next-Generation Performance-Based Seismic Design ...  

Science Conference Proceedings (OSTI)

Page 1. Next-Generation Performance-Based Seismic Design Guidelines Program Plan for New and Existing Buildings FEMA-445 / August 2006 ...

2007-03-01T23:59:59.000Z

258

Seismic Design of Steel Special Concentrically Braced Frame ...  

Science Conference Proceedings (OSTI)

Page 1. NEHRP Seismic Design Technical Brief No. 8 ... Dr. John (Jay) L. Harris, III, managed the project to produce this Technical Brief for EL. ...

2013-08-01T23:59:59.000Z

259

Seismic Technology Adapted to Analyzing and Developing Geothermal...  

Open Energy Info (EERE)

Last modified on July 22, 2011. Project Title Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Project Type ...

260

Using Supercomputers to Improve Seismic Hazard Maps | Argonne...  

NLE Websites -- All DOE Office Websites (Extended Search)

of 2% in 50 years. Using Supercomputers to Improve Seismic Hazard Maps PI Name: Thomas Jordan PI Email: tjordan@usc.edu Institution: Southern California Earthquake Center...

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Geographic Information System At Central Nevada Seismic Zone...  

Open Energy Info (EERE)

Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic...

262

Geographic Information System At Central Nevada Seismic Zone...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Exploration...

263

Geographic Information System At Central Nevada Seismic Zone...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2)...

264

Global pattern of earthquakes and seismic energy distributions: Insights for the mechanisms of plate tectonics  

E-Print Network (OSTI)

Global pattern of earthquakes and seismic energy distributions: Insights for the mechanisms October 2011 Keywords: Global seismicity Declustered catalogue Earthquake energy distribution Plate tectonics In this paper, we analyse the distributions of number of events (N) and seismic energy (E

Doglioni, Carlo

265

Reflection Survey At Under Steamboat Springs Area (Warpinski...  

Open Energy Info (EERE)

of 2000, (2) a micro-seismic survey run from November 2000 to April 200 1, and (3) a gravity survey conducted in April and May 2001. The 3-D surface seismic data are still being...

266

Cumulus Clouds and Reflected Sunlight  

NLE Websites -- All DOE Office Websites (Extended Search)

Cumulus Clouds and Reflected Sunlight Cumulus Clouds and Reflected Sunlight from Landsat ETM+ G. Wen and L. Oreopoulos National Aeronautics and Space Administration Goddard Space Flight Center University of Maryland Baltimore County Joint Center of Earth System Technology Greenbelt, Maryland R. F. Cahalan and S. C. Tsay National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland Introduction Cumulus clouds attenuate solar radiation casting shows on the ground. Cumulus clouds can also enhance solar radiation in the clear region nearby. The enhancement of down-welling solar radiation has been observed at the ground level in the clear region near cumulus clouds (Mims and Frederick 1994). The additional diffuse radiation source from cumulus clouds makes the clear gaps appear to be

267

3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary  

DOE Green Energy (OSTI)

A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally fractured reservoirs. The application could be for exploration of new resources or for in-fill/step-out drilling in existing fields. In most geothermal environments the challenge has been to separate the ''background'' natural complexity and heterogeneity of the matrix from the fracture/fault heterogeneity controlling the fluid flow. Ideally one not only wants to find the fractures, but the fractures that are controlling the flow of the fluids. Evaluated in this work is current state-of-the-art surface (seismic reflection) and borehole seismic methods (Vertical Seismic Profiling (VSP), Crosswell and Single Well) to locate and quantify geothermal reservoir characteristics. The focus is on active methods; the assumption being that accuracy is needed for successful well siting. Passive methods are useful for exploration and detailed monitoring for in-fill drilling, but in general the passive methods lack the precision and accuracy for well siting in new or step out areas. In addition, MEQ activity is usually associated with production, after the field has been taken to a mature state, thus in most cases it is assumed that there is not enough MEQ activity in unproduced areas to accurately find the permeable pathways. The premise of this review is that there may new developments in theory and modeling, as well as in data acquisition and processing, which could make it possible to image the subsurface in much more detail than 15 years ago. New understanding of the effect of fractures on seismic wave propagation are now being applied to image fractures in gas and oil environments. It now may be appropriate to apply these methods, with modifications, to geothermal applications. It is assumed that to implement the appropriate methods an industry coupled program tightly linked to actual field cases, iterating between development and application will be pursued. The goal of this work is to evaluate the most promising methods and approaches that may be used for improved geothermal exploration and reservoir assessment. It is not a comprehensive review of all seismic methods used to date in geothermal environments. This work was motivated by a need to assess current and developing seismic technology that if applied in geothermal cases may greatly improve the chances for locating new geothermal resources and/or improve assessment of current ones.

Majer, E.L.

2003-07-14T23:59:59.000Z

268

Seismic Characterization of Coal-Mining Seismicity in Utah for CTBT Monitoring  

SciTech Connect

Underground coal mining (down to {approx}0.75 km depth) in the contiguous Wasatch Plateau (WP) and Book Cliffs (BC) mining districts of east-central Utah induces abundant seismicity that is monitored by the University of Utah regional seismic network. This report presents the results of a systematic characterization of mining seismicity (magnitude {le} 4.2) in the WP-BC region from January 1978 to June 2000-together with an evaluation of three seismic events (magnitude {le} 4.3) associated with underground trona mining in southwestern Wyoming during January-August 2000. (Unless specified otherwise, magnitude implies Richter local magnitude, M{sub L}.) The University of Utah Seismograph Stations (UUSS) undertook this cooperative project to assist the University of California Lawrence Livermore National Laboratory (LLNL) in research and development relating to monitoring the Comprehensive Test Ban Treaty (CTBT). The project, which formally began February 28, 1998, and ended September 1, 2000, had three basic objectives: (1) Strategically install a three-component broadband digital seismic station in the WP-BC region to ensure the continuous recording of high-quality waveform data to meet the long-term needs of LLNL, UUSS, and other interested parties, including the international CTBT community. (2) Determine source mechanisms--to the extent that available source data and resources allowed--for comparative seismic characterization of stress release in mines versus earthquakes in the WP-BC study region. (3) Gather and report to LLNL local information on mine operations and associated seismicity, including ''ground truth'' for significant events. Following guidance from LLNL's Technical Representative, the focus of Objective 2 was changed slightly to place emphasis on three mining-related events that occurred in and near the study area after the original work plan had been made, thus posing new targets of opportunity. These included: a magnitude 3.8 shock that occurred close to the Willow Creek coal mine in the Book Cliffs area on February 5, 1998 (UTC date), just prior to the start of this project; a magnitude 4.2 shock on March 7,2000 (UTC date), in the same area as the February 5 event; and a magnitude 4.3 shock that occurred on January 30,2000 (UTC and local date), associated with a panel collapse at the Solvay trona mine in southwestern Wyoming. This is the same mine in which an earlier collapse event of magnitude 5.2 occurred in February 1995, attracting considerable attention from the CTBT community.

Arabasz, W J; Pechmann, J C

2001-03-01T23:59:59.000Z

269

HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS  

Science Conference Proceedings (OSTI)

M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratories (PNNL) to perform seismic analysis of the Hanford Site Double-Shell Tanks (DSTs) in support of a project entitled Double-Shell Tank (DST) Integrity Project - DST Thermal and Seismic Analyses. The original scope of the project was to complete an up-to-date comprehensive analysis of record of the DST System at Hanford in support of Tri-Party Agreement Milestone M-48-14. The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). Although Milestone M-48-14 has been met, Revision I is being issued to address external review comments with emphasis on changes in the modeling of anchor bolts connecting the concrete dome and the steel primary tank. The work statement provided to M&D (PNNL 2003) required that a nonlinear soil structure interaction (SSI) analysis be performed on the DSTs. The analysis is required to include the effects of sliding interfaces and fluid sloshing (fluid-structure interaction). SSI analysis has traditionally been treated by frequency domain computer codes such as SHAKE (Schnabel, et al. 1972) and SASSI (Lysmer et al. 1999a). Such frequency domain programs are limited to the analysis of linear systems. Because of the contact surfaces, the response of the DSTs to a seismic event is inherently nonlinear and consequently outside the range of applicability of the linear frequency domain programs. That is, the nonlinear response of the DSTs to seismic excitation requires the use of a time domain code. The capabilities and limitations of the commercial time domain codes ANSYS{reg_sign} and MSC Dytran{reg_sign} for performing seismic SSI analysis of the DSTs and the methodology required to perform the detailed seismic analysis of the DSTs has been addressed in Rinker et al (2006a). On the basis of the results reported in Rinker et al. (2006a), it is concluded that time-domain SSI analysis using ANSYS{reg_sign} is justified for predicting the global response of the DSTs. The most significant difference between the current revision (Revision 1) of this report and the original issue (Revision 0) is the treatment of the anchor bolts that tie the steel dome of the primary tank to the concrete tank dome.

MACKEY TC; RINKER MW; CARPENTER BG; HENDRIX C; ABATT FG

2009-01-15T23:59:59.000Z

270

Development of a HT seismic downhole tool.  

Science Conference Proceedings (OSTI)

Enhanced Geothermal Systems (EGS) require the stimulation of the drilled well, likely through hydraulic fracturing. Whether fracturing of the rock occurs by shear destabilization of natural fractures or by extensional failure of weaker zones, control of the fracture process will be required to create the flow paths necessary for effective heat mining. As such, microseismic monitoring provides one method for real-time mapping of the fractures created during the hydraulic fracturing process. This monitoring is necessary to help assess stimulation effectiveness and provide the information necessary to properly create the reservoir. In addition, reservoir monitoring of the microseismic activity can provide information on reservoir performance and evolution over time. To our knowledge, no seismic tool exists that will operate above 125 C for the long monitoring durations that may be necessary. Replacing failed tools is costly and introduces potential errors such as depth variance, etc. Sandia has designed a high temperature seismic tool for long-term deployment in geothermal applications. It is capable of detecting microseismic events and operating continuously at temperatures up to 240 C. This project includes the design and fabrication of two High Temperature (HT) seismic tools that will have the capability to operate in both temporary and long-term monitoring modes. To ensure the developed tool meets industry requirements for high sampling rates (>2ksps) and high resolution (24-bit Analog-to-Digital Converter) two electronic designs will be implemented. One electronic design will utilize newly developed 200 C electronic components. The other design will use qualified Silicon-on-Insulator (SOI) devices and will have a continuous operating temperature of 240 C.

Maldonado, Frank P.; Greving, Jeffrey J.; Henfling, Joseph Anthony; Chavira, David J.; Uhl, James Eugene; Polsky, Yarom

2009-06-01T23:59:59.000Z

271

First Quarter Hanford Seismic Report for Fiscal Year 2009  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the HSAP works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. This includes three recently acquired Transportable Array stations located at Cold Creek, Didier Farms, and Phinney Hill. For the Hanford Seismic Network, ten local earthquakes were recorded during the first quarter of fiscal year 2009. All earthquakes were considered as minor with magnitudes (Mc) less than 1.0. Two earthquakes were located at shallow depths (less than 4 km), most likely in the Columbia River basalts; five earthquakes at intermediate depths (between 4 and 9 km), most likely in the sub-basalt sediments); and three earthquakes were located at depths greater than 9 km, within the basement. Geographically, four earthquakes occurred in known swarm areas and six earthquakes were classified as random events.

Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E.; Devary, Joseph L.

2009-03-15T23:59:59.000Z

272

Knowledge Assisted Visualization: Knowledge-assisted visualization of seismic data  

Science Conference Proceedings (OSTI)

We present novel techniques for knowledge-assisted annotation and computer-assisted interpretation of seismic data for oil and gas exploration. We describe the existing procedure for oil and gas search which consists of manually extracting information ... Keywords: 2D textures, 3D textures, Illustrative visualization, Knowledge-assisted visualization, Rapid interpretation, Seismic interpretation

Daniel Patel; yvind Sture; Helwig Hauser; Christopher Giertsen; M. Eduard Grller

2009-10-01T23:59:59.000Z

273

First Quarter Hanford Seismic Report for Fiscal Year 2011  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the HSAP works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. The Hanford Seismic Network recorded 16 local earthquakes during the first quarter of FY 2011. Six earthquakes were located at shallow depths (less than 4 km), seven earthquakes at intermediate depths (between 4 and 9 km), most likely in the pre-basalt sediments, and three earthquakes were located at depths greater than 9 km, within the basement. Geographically, thirteen earthquakes were located in known swarm areas and three earthquakes were classified as random events. The highest magnitude event (1.8 Mc) was recorded on October 19, 2010 at depth 17.5 km with epicenter located near the Yakima River between the Rattlesnake Mountain and Horse Heaven Hills swarm areas.

Rohay, Alan C.; Sweeney, Mark D.; Clayton, Ray E.; Devary, Joseph L.

2011-03-31T23:59:59.000Z

274

Geographic Information System At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Central Nevada Seismic Zone Region Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Mark Coolbaugh, Richard Zehner, Corne Kreemer, David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa- Recognition Of Multiple Geothermal Environments Retrieved from "http://en.openei.org/w/index.php?title=Geographic_Information_System_At_Central_Nevada_Seismic_Zone_Region_(Coolbaugh,_Et_Al.,_2005_-_2)&oldid=401371

275

Data Acquisition-Manipulation At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Central Nevada Seismic Zone Region Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Data Acquisition-Manipulation Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Mark Coolbaugh, Richard Zehner, Corne Kreemer, David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa- Recognition Of Multiple Geothermal Environments Retrieved from "http://en.openei.org/w/index.php?title=Data_Acquisition-Manipulation_At_Central_Nevada_Seismic_Zone_Region_(Coolbaugh,_Et_Al.,_2005_-_2)&oldid=401360"

276

Seismic baseline and induction studies- Roosevelt Hot Springs, Utah and  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Seismic baseline and induction studies- Roosevelt Hot Springs, Utah and Raft River, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Seismic baseline and induction studies- Roosevelt Hot Springs, Utah and Raft River, Idaho Details Activities (2) Areas (2) Regions (0) Abstract: Local seismic networks were established at the Roosevelt Hot Springs geothermal area, utah and at Raft River geothermal area, Idaho to monitor the background seismicity prior to initiation of geothermal power production. The Raft River study area is currently seismically quiet down

277

Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner, Et  

Open Energy Info (EERE)

Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner, Et Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner, Et Al., 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Refraction Survey Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Michelle Heimgartner, James B. Scott, Weston Thelen, Christopher R. Lopez, John N. Louie (2005) Variable Crustal Thickness In The Western Great Basin- A Compilation Of Old And New Refraction Data Retrieved from "http://en.openei.org/w/index.php?title=Refraction_Survey_At_Central_Nevada_Seismic_Zone_Region_(Heimgartner,_Et_Al.,_2005)&oldid=401382

278

Nonlinear acoustic/seismic waves in earthquake processes  

Science Conference Proceedings (OSTI)

Nonlinear dynamics induced by seismic sources and seismic waves are common in Earth. Observations range from seismic strong ground motion (the most damaging aspect of earthquakes), intense near-source effects, and distant nonlinear effects from the source that have important consequences. The distant effects include dynamic earthquake triggering-one of the most fascinating topics in seismology today-which may be elastically nonlinearly driven. Dynamic earthquake triggering is the phenomenon whereby seismic waves generated from one earthquake trigger slip events on a nearby or distant fault. Dynamic triggering may take place at distances thousands of kilometers from the triggering earthquake, and includes triggering of the entire spectrum of slip behaviors currently identified. These include triggered earthquakes and triggered slow, silent-slip during which little seismic energy is radiated. It appears that the elasticity of the fault gouge-the granular material located between the fault blocks-is key to the triggering phenomenon.

Johnson, Paul A. [Geophysics Group, Los Alamos National Laboratory, Los Alamos National Laboratory, Los Alamos New Mexico 87544 (United States)

2012-09-04T23:59:59.000Z

279

Second Quarter Hanford Seismic Report for Fiscal Year 2008  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The Hanford Seismic Assessment Team locates and identifies sources of seismic activity and monitors changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the seismic monitoring organization works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. For the Hanford Seismic Network, seven local earthquakes were recorded during the second quarter of fiscal year 2008. The largest event recorded by the network during the second quarter (February 3, 2008 - magnitude 2.3 Mc) was located northeast of Richland in Franklin County at a depth of 22.5 km. With regard to the depth distribution, two earthquakes occurred at shallow depths (less than 4 km, most likely in the Columbia River basalts), three earthquakes at intermediate depths (between 4 and 9 km, most likely in the pre-basalt sediments), and two earthquakes were located at depths greater than 9 km, within the crystalline basement. Geographically, five earthquakes occurred in swarm areas and two earthquakes were classified as random events.

Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E.; Devary, Joseph L.

2008-06-26T23:59:59.000Z

280

First Quarter Hanford Seismic Report for Fiscal Year 2008  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The Hanford Seismic Assessment Team locates and identifies sources of seismic activity and monitors changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the seismic monitoring organization works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 41 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. For the Hanford Seismic Network, forty-four local earthquakes were recorded during the first quarter of fiscal year 2008. A total of thirty-one micro earthquakes were recorded within the Rattlesnake Mountain swarm area at depths in the 5-8 km range, most likely within the pre-basalt sediments. The largest event recorded by the network during the first quarter (November 25, 2007 - magnitude 1.5 Mc) was located within this swarm area at a depth of 4.3 km. With regard to the depth distribution, three earthquakes occurred at shallow depths (less than 4 km, most likely in the Columbia River basalts), thirty-six earthquakes at intermediate depths (between 4 and 9 km, most likely in the pre-basalt sediments), and five earthquakes were located at depths greater than 9 km, within the crystalline basement. Geographically, thirty-eight earthquakes occurred in swarm areas and six earthquakes were classified as random events.

Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E.; Devary, Joseph L.

2008-03-21T23:59:59.000Z

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281

Application of the Neo-Deterministic Seismic Microzonation Procedure in Bulgaria and Validation of the Seismic Input Against Eurocode 8  

SciTech Connect

The earthquake record and the Code for design and construction in seismic regions in Bulgaria have shown that the territory of the Republic of Bulgaria is exposed to a high seismic risk due to local shallow and regional strong intermediate-depth seismic sources. The available strong motion database is quite limited, and therefore not representative at all of the real hazard. The application of the neo-deterministic seismic hazard assessment procedure for two main Bulgarian cities has been capable to supply a significant database of synthetic strong motions for the target sites, applicable for earthquake engineering purposes. The main advantage of the applied deterministic procedure is the possibility to take simultaneously and correctly into consideration the contribution to the earthquake ground motion at the target sites of the seismic source and of the seismic wave propagation in the crossed media. We discuss in this study the result of some recent applications of the neo-deterministic seismic microzonation procedure to the cities of Sofia and Russe. The validation of the theoretically modeled seismic input against Eurocode 8 and the few available records at these sites is discussed.

Ivanka, Paskaleva [CLSMEE--BAS, 3 Acad G. Bonchev str, 1113 Sofia (Bulgaria); Mihaela, Kouteva [CLSMEE-BAS, 3 Acad G. Bonchev str, 1113 Sofia (Bulgaria); ESP-SAND, ICTP, Trieste (Italy); Franco, Vaccari [DST-University of Trieste, Via E. Weiss 4, 34127 Trieste (Italy); Panza, Giuliano F. [DST-University of Trieste, Via E. Weiss 4, 34127 Trieste (Italy); ESP-SAND, ICTP, Trieste (Italy)

2008-07-08T23:59:59.000Z

282

Ground motion input in seismic evaluation studies  

Science Conference Proceedings (OSTI)

This report documents research pertaining to conservatism and variability in seismic risk estimates. Specifically, it examines whether or not artificial motions produce unrealistic evaluation demands, i.e., demands significantly inconsistent with those expected from real earthquake motions. To study these issues, two types of artificial motions are considered: (a) motions with smooth response spectra, and (b) motions with realistic variations in spectral amplitude across vibration frequency. For both types of artificial motion, time histories are generated to match target spectral shapes. For comparison, empirical motions representative of those that might result from strong earthquakes in the Eastern U.S. are also considered. The study findings suggest that artificial motions resulting from typical simulation approaches (aimed at matching a given target spectrum) are generally adequate and appropriate in representing the peak-response demands that may be induced in linear structures and equipment responding to real earthquake motions. Also, given similar input Fourier energies at high-frequencies, levels of input Fourier energy at low frequencies observed for artificial motions are substantially similar to those levels noted in real earthquake motions. In addition, the study reveals specific problems resulting from the application of Western U.S. type motions for seismic evaluation of Eastern U.S. nuclear power plants.

Sewell, R.T.; Wu, S.C.

1996-07-01T23:59:59.000Z

283

Seismic imaging of the Medicine Lake Caldera  

DOE Green Energy (OSTI)

Medicine Lake Volcano, a broad shield volcano about 50 km east of Mount Shasta in northern California, produced rhylotic eruptions as recently as 400 years ago. Because of this recent activity it is of considerable interest to producers of geothermal energy. The USGS and LLNL conducted an active seismic experiment designed to explore the area beneath and around the caldera. This experiment had two purposes: To produce high-quality velocity and attenuation images of the young magma body presumed to be the source for the young volcanic features, and to collect a dataset that can be used to develop and test seismic imaging methods that may be useful for understanding other geothermal systems. Eight large explosions were detonated in a 50 km radius circle around the volcano, a distance chosen to produce strong upward traveling signals through the area of interest. The data were inverted using Aki's method to produce three-dimensional velocity and attenuation images of the sub-surface. Preliminary interpretation shows low velocity and attenuation on the flanks of the volcano, and coincident high attenuation values and low velocities (-20%) from 3 to 5 km beneath the center of the caldera. This zone may be a region of partial melt which fed the youngest eruptions.

Zucca, J.J.; Evans, J.R.; Kasameyer, P.W.

1987-04-01T23:59:59.000Z

284

HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS  

Science Conference Proceedings (OSTI)

M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratory (PNNL) to perform seismic analysis of the Hanford Site double-shell tanks (DSTs) in support of a project entitled ''Double-Shell Tank (DSV Integrity Project--DST Thermal and Seismic Analyses)''. The overall scope of the project is to complete an up-to-date comprehensive analysis of record of the DST system at Hanford in support of Tri-Party Agreement Milestone M-48-14, The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). The work statement provided to M&D (PNNL 2003) required that the seismic analysis of the DSTs assess the impacts of potentially non-conservative assumptions in previous analyses and account for the additional soil mass due to the as-found soil density increase, the effects of material degradation, additional thermal profiles applied to the full structure including the soil-structure response with the footings, the non-rigid (low frequency) response of the tank roof, the asymmetric seismic-induced soil loading, the structural discontinuity between the concrete tank wall and the support footing and the sloshing of the tank waste. The seismic analysis considers the interaction of the tank with the surrounding soil and the effects of the primary tank contents. The DSTs and the surrounding soil are modeled as a system of finite elements. The depth and width of the soil incorporated into the analysis model are sufficient to obtain appropriately accurate analytical results. The analyses required to support the work statement differ from previous analysis of the DSTs in that the soil-structure interaction (SSI) model includes several (nonlinear) contact surfaces in the tank structure, and the contained waste must be modeled explicitly in order to capture the fluid-structure interaction behavior between the primary tank and contained waste.

MACKEY, T.C.

2006-03-17T23:59:59.000Z

285

High-amplitude reflection packets (HARPs) of the Mississippi Fan, Gulf of Mexico  

E-Print Network (OSTI)

Examination of seismic data from the deep-water Gulf of Mexico reveals the presence of High-Amplitude Reflection Packets (HARPs). An analog study conducted by the Ocean Drilling Program Leg 155 identified and described Amazon Fan HARPs as a stacked, relatively unconfined series of graded turbidites overlain by a channel-levee. HARP seismic facies thin laterally and onlap antecedent bathymetry (preexisting submarine topography). HARP areal extent is controlled by antecedent bathymetry and turbidity flow sediment volumes. Mississippi Fan HARP deposition can be described by three depositional models: the "avulsion" model, the "fill and spill" model, and the "transition" model. The "avulsion" depositional model, developed by Flood et al. (1991), describes avulsion of submarine channel-levees by turbidity flows. Subsequent turbidity flows exit the channel-levee at the avulsion point and are deposited as unchannelized HARPs. The "fill and spill" model, developed by Satterfield and Behrens (1990), describes turbidite deposition in the Gulf of Mexico salt province. Initial stages of the "fill and spill" model accurately describe the seismic geometries of HARPs confined by adjacent salt structures. The "transition" model was developed in this study to describe the Gulf of Mexico HARP seismic geometries seen in the transition zone from the salt province to the abyssal plain. The HARPs described by the "transition" model contain an upslope segment confined by salt structures and a downslope segment confined by antecedent bathymetry. Utilizing seismic data from the Gulf of Mexico and core and well-log data from the Amazon Fan, this study has determined that HARPs and related channel-levees have hydrocarbon play potential. HARP sheet sands, internal HARP channel fill, overlying channel-levee fill, and overbank levee sands are potential reservoir units. Detrital carbonate and hemipelagic shale source rocks are in place in the deep-water Gulf of Mexico. In addition, structurally derived migration pathways combine with percolation as potential migration processes. This study integrates identification and description of HARP seismic facies relationships, current and newly developed depositional models, interpretation of stratigraphic controls, HARP internal reservoir architecture, and determination of HARP hydrocarbon potential in order to predict HARP deposition in the Mississippi Fan and other mud-rich fans worldwide.

Francis, Jason Michael

2000-01-01T23:59:59.000Z

286

Discharge lamp with reflective jacket  

DOE Patents (OSTI)

A discharge lamp includes an envelope, a fill which emits light when excited disposed in the envelope, a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed around the envelope and defining an opening, the reflector being configured to reflect some of the light emitted by the fill back into the fill while allowing some light to exit through the opening. The reflector may be made from a material having a similar thermal index of expansion as compared to the envelope and which is closely spaced to the envelope. The envelope material may be quartz and the reflector material may be either silica or alumina. The reflector may be formed as a jacket having a rigid structure which does not adhere to the envelope. The lamp may further include an optical clement spaced from the envelope and configured to reflect an unwanted component of light which exited the envelope back into the envelope through the opening in the reflector. Light which can be beneficially recaptured includes selected wavelength regions, a selected polarization, and selected angular components.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

2001-01-01T23:59:59.000Z

287

Analysis of seismic sloshing of reactor tanks considering submerged components and seismic isolation  

Science Conference Proceedings (OSTI)

A study of the seismic sloshing response of a large pool-type reactor tank with several deck-mounted components is presented. The main objective of the study is to investigate the effects of internal components on the sloshing response and to determine the sloshing loads on the components. The study shows that the presence of internal components can significantly change the dynamic characteristics of the sloshing motion. The sloshing frequencies of a tank with internal components are considerably higher than those of a tank without internals. The higher sloshing frequencies reduce the sloshing wave height on the free surface but the dynamic pressures of the fluid are increased. The effects of seismic isolation on sloshing response are also presented.

Ma, D.C.; Chang, Y.M.

1985-01-01T23:59:59.000Z

288

Seismic Technology Adapted to Analyzing and Developing Geothermal Systems  

Open Energy Info (EERE)

Technology Adapted to Analyzing and Developing Geothermal Systems Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Geophysical Exploration Technologies Project Description Historically, areas where the Earth surface is covered by an exposed high-velocity rock layer have been locations where conventional, single-component, seismic P-waves have failed to provide usable geological information. The research will use new seismic sources that emphasize shear waves and new seismic data-acquisition technology based on cable-free data recording to acquire seismic research data across two sites covered with surface-exposed highvelocity rocks. Research tasks will involve acquiring, processing, and interpreting both conventional seismic data and multicomponent seismic data. Scientists at BEG will analyze well logs, cores, and reservoir test data to construct geological models of the targeted geology across each study site.

289

Validation of seismic probabilistic risk assessments of nuclear power plants  

SciTech Connect

A seismic probabilistic risk assessment (PRA) of a nuclear plant requires identification and information regarding the seismic hazard at the plant site, dominant accident sequences leading to core damage, and structure and equipment fragilities. Uncertainties are associated with each of these ingredients of a PRA. Sources of uncertainty due to seismic hazard and assumptions underlying the component fragility modeling may be significant contributors to uncertainty in estimates of core damage probability. Design and construction errors also may be important in some instances. When these uncertainties are propagated through the PRA, the frequency distribution of core damage probability may span three orders of magnitude or more. This large variability brings into question the credibility of PRA methods and the usefulness of insights to be gained from a PRA. The sensitivity of accident sequence probabilities and high-confidence, low probability of failure (HCLPF) plant fragilities to seismic hazard and fragility modeling assumptions was examined for three nuclear power plants. Mean accident sequence probabilities were found to be relatively insensitive (by a factor of two or less) to: uncertainty in the coefficient of variation (logarithmic standard deviation) describing inherent randomness in component fragility; truncation of lower tail of fragility; uncertainty in random (non-seismic) equipment failures (e.g., diesel generators); correlation between component capacities; and functional form of fragility family. On the other hand, the accident sequence probabilities, expressed in the form of a frequency distribution, are affected significantly by the seismic hazard modeling, including slopes of seismic hazard curves and likelihoods assigned to those curves.

Ellingwood, B. [Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Civil Engineering

1994-01-01T23:59:59.000Z

290

Seismic Safety Margins Research Program. Phase I, final report - overview  

SciTech Connect

The Seismic Safety Margins Research Program (SSMRP) is a multiyear, multiphase program whose overall objective is to develop improved methods for seismic safety assessments of nuclear power plants, using a probabilistic computational procedure. The program is being carried out at the Lawrence Livermore National Laboratory and is sponsored by the US Nuclear Regulatory Commission, Office of Nuclear Regulatory Research. Phase I of the SSMRP was successfully completed in January 1981: A probabilistic computational procedure for the seismic risk assessment of nuclear power plants has been developed and demonstrated. The methodology is implemented by three computer programs: HAZARD, which assesses the seismic hazard at a given site, SMACS, which computes in-structure and subsystem seismic responses, and SEISIM, which calculates system failure probabilities and radioactive release probabilities, given (1) the response results of SMACS, (2) a set of event trees, (3) a family of fault trees, (4) a set of structural and component fragility descriptions, and (5) a curve describing the local seismic hazard. The practicality of this methodology was demonstrated by computing preliminary release probabilities for Unit 1 of the Zion Nuclear Power Plant north of Chicago, Illinois. Studies have begun aimed at quantifying the sources of uncertainty in these computations. Numerous side studies were undertaken to examine modeling alternatives, sources of error, and available analysis techniques. Extensive sets of data were amassed and evaluated as part of projects to establish seismic input parameters and to produce the fragility curves. 66 refs., 29 figs., 10 tabs.

Smith, P.D.; Dong, R.G.; Bernreuter, D.L.; Bohn, M.P.; Chuang, T.Y.; Cummings, G.E.; Johnson, J.J.; Mensing, R.W.; Wells, J.E.

1981-03-06T23:59:59.000Z

291

N Reactor Seismic Task Force analysis and fix summary  

Science Conference Proceedings (OSTI)

The N Reactor Safety Enhancement Program (SEP) and the Accelerated Safety Enhancement Program (ASEP) were established to implement recommendations made earlier by study groups assessing the safety of N Reactor. The recommendations which dealt with seismic issues were assigned to Safety Enhancement Programs, Defense Reactor Programs for implementation. A Seismic Task Force was assembled to perform the analyses, design the modifications, direct the performance of the work and provide program management of the effort to seismically qualify the facility. This document identifies the reports published by the task force to resolve each of the seismic issues raised by safety assessments. The reports, in turn, provide a list of recommended fixes (Fixes are potential problems, not resolved in the engineering analyses, which require repair, cleanup or modifications to hardware to establish seismic qualification). The purpose of this report is to provide a guide to seismic fixes implemented by the Seismic Task Force. This information is provided in the form of a ``fix log`` which lists fixes according to the report which recommended them and identifies the work authorization (WA), engineering documentation (Design Change, Field Change Notice or Engineering Change Notice) and acceptance dates for each fix. 5 refs., 6 tabs.

Rainey, T.E.

1989-05-01T23:59:59.000Z

292

Planning Tools For Seismic Risk Mitigation. Rules And Applications  

SciTech Connect

Recently, Italian urban planning research in the field of seismic risk mitigation are renewing. In particular, it promotes strategies that integrate urban rehabilitation and aseismic objectives, and also politicizes that are directed to revitalizes urban systems, coupling physical renewal and socio-economic development.In Italy the first law concerning planning for seismic mitigation dates back 1974, the law n. 64 'Regulation for buildings with particular rules for the seismic areas' where the rules for buildings in seismic areas concerning also the local hazard. This law, in fact, forced the municipalities to acquire, during the formation of the plans, a preventive opinion of compatibility between planning conditions and geomorphology conditions of the territory. From this date the conviction that the seismic risk must be considered inside the territorial planning especially in terms of strategies of mitigation has been strengthened.The town planners have started to take an interest in seismic risk in the [80]s when the Irpinia's earthquake took place. The researches developed after this earthquake have established that the principal cause of the collapse of buildings are due to from the wrong location of urban settlements (on slopes or crowns) After Irpinia's earthquake the first researches on seismic risk mitigation, in particular on the aspects related to the hazards and to the urban vulnerability were made.

De Paoli, Rosa Grazia [Department of Landscape Planning, Mediterranean University of Reggio Calabria (Italy)

2008-07-08T23:59:59.000Z

293

SHEAR WAVE SEISMIC STUDY COMPARING 9C3D SV AND SH IMAGES WITH 3C3D C-WAVE IMAGES  

Science Conference Proceedings (OSTI)

The objective of this study was to compare the relative merits of shear-wave (S-wave) seismic data acquired with nine-component (9-C) technology and with three-component (3-C) technology. The original proposal was written as if the investigation would be restricted to a single 9-C seismic survey in southwest Kansas (the Ashland survey), on the basis of the assumption that both 9-C and 3-C S-wave images could be created from that one data set. The Ashland survey was designed as a 9-C seismic program. We found that although the acquisition geometry was adequate for 9-C data analysis, the source-receiver geometry did not allow 3-C data to be extracted on an equitable and competitive basis with 9-C data. To do a fair assessment of the relative value of 9-C and 3-C seismic S-wave data, we expanded the study beyond the Ashland survey and included multicomponent seismic data from surveys done in a variety of basins. These additional data were made available through the Bureau of Economic Geology, our research subcontractor. Bureau scientists have added theoretical analyses to this report that provide valuable insights into several key distinctions between 9-C and 3-C seismic data. These theoretical considerations about distinctions between 3-C and 9-C S-wave data are presented first, followed by a discussion of differences between processing 9-C common-midpoint data and 3-C common-conversion-point data. Examples of 9-C and 3-C data are illustrated and discussed in the last part of the report. The key findings of this study are that each S-wave mode (SH-SH, SV-SV, or PSV) involves a different subsurface illumination pattern and a different reflectivity behavior and that each mode senses a different Earth fabric along its propagation path because of the unique orientation of its particle-displacement vector. As a result of the distinct orientation of each mode's particle-displacement vector, one mode may react to a critical geologic condition in a more optimal way than do the other modes. A conclusion of the study is that 9-C seismic data contain more rock and fluid information and more sequence and facies information than do 3-C seismic data; 9-C data should therefore be acquired in multicomponent seismic programs whenever possible.

John Beecherl; Bob A. Hardage

2004-07-01T23:59:59.000Z

294

Spatial Convergence of Bidirectional Reflectance Models  

Science Conference Proceedings (OSTI)

Analyses of bidirectional reflectance data are presented with implications regarding the spatial scales appropriate for inferring irradiances from radiances reflected by various surfaceatmosphere scenes. Multiple-angle radiance data collected in ...

John M. Davis; Stephen K. Cox

1998-10-01T23:59:59.000Z

295

Semantic Models for Distributed Object Reflection  

Science Conference Proceedings (OSTI)

A generic formal model of distributed object reflection is proposed, that combines logical reflection with a structuring of distributed objects as nested configurations of metaobject that can control subobjects under them. The model provides mathematical ...

Jos Meseguer; Carolyn L. Talcott

2002-06-01T23:59:59.000Z

296

SEISMIC DETERMINATION OF RESERVOIR HETEROGENEITY; APPLICATION TO THE CHARACTERIZATION OF HEAVY OIL RESERVOIRS  

SciTech Connect

The objective of the project is to examine how seismic and geologic data can be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study is performed at West Coalinga Field in California. We continued our investigation on the nature of seismic reactions from heterogeneous reservoirs. We began testing our algorithm to infer parameters of object-based reservoir models from seismic data. We began integration of seismic and geologic data to determine the deterministic limits of conventional seismic data interpretation. Lastly, we began integration of seismic and geologic heterogeneity using stochastic models conditioned both on wireline and seismic data.

Matthias G. Imhof; James W. Castle

2003-11-01T23:59:59.000Z

297

Post-processing of seismic parameter data based on valid seismic event determination  

DOE Patents (OSTI)

An automated seismic processing system and method are disclosed, including an array of CMOS microprocessors for unattended battery-powered processing of a multi-station network. According to a characterizing feature of the invention, each channel of the network is independently operable to automatically detect, measure times and amplitudes, and compute and fit Fast Fourier transforms (FFT's) for both P- and S- waves on analog seismic data after it has been sampled at a given rate. The measured parameter data from each channel are then reviewed for event validity by a central controlling microprocessor and if determined by preset criteria to constitute a valid event, the parameter data are passed to an analysis computer for calculation of hypocenter location, running b-values, source parameters, event count, P- wave polarities, moment-tensor inversion, and Vp/Vs ratios. The in-field real-time analysis of data maximizes the efficiency of microearthquake surveys allowing flexibility in experimental procedures, with a minimum of traditional labor-intensive postprocessing. A unique consequence of the system is that none of the original data (i.e., the sensor analog output signals) are necessarily saved after computation, but rather, the numerical parameters generated by the automatic analysis are the sole output of the automated seismic processor.

McEvilly, Thomas V. (733 Alvarado Rd., Berkeley, CA 94705)

1985-01-01T23:59:59.000Z

298

Review of seismicity and ground motion studies related to development of seismic design at SRS  

Science Conference Proceedings (OSTI)

The NRC response spectra developed in Reg. Guide 1.60 is being used in the studies related to restarting of the existing Savannah River Site (SRS) reactors. Because it envelopes all the other site specific spectra which have been developed for SRS, it provides significant conservatism in the design and analysis of the reactor systems for ground motions of this value or with these probability levels. This spectral shape is also the shape used for the design of the recently licensed Vogtle Nuclear Station, located south of the Savannah River from the SRS. This report provides a summary of the data base used to develop the design basis earthquake. This includes the seismicity, rates of occurrence, magnitudes, and attenuation relationships. A summary is provided for the studies performed and methodologies used to establish the design basis earthquake for SRS. The ground motion response spectra developed from the various studies are also summarized. The seismic hazard and PGA`s developed for other critical facilities in the region are discussed, and the SRS seismic instrumentation is presented. The programs for resolving outstanding issues are discussed and conclusions are presented.

Stephenson, D.E. [Westinghouse Savannah River Co., Aiken, SC (United States); Acree, J.R. [Westinghouse Environmental and Geotechnical Services, Inc., Columbia, SC (United States)

1992-08-01T23:59:59.000Z

299

Reflective coatings for solar applications  

DOE Green Energy (OSTI)

Many applications of solar energy require large mirrors to provide high levels of concentrated sunlight. The success of such conversion systems hinges on the optical durability and economic viability of the reflector materials. A major effort at the National Renewable Energy Laboratory (NREL) has been to improve the existing reflector materials technology and to identify candidates that retain optical performance and durability criteria and offer potential for reduced cost. To attain the goals, it is desirable to maintain and increase the involvement of industrial organizations in reflective materials R&D related to the conversion of solar resources to useful energy. Toward this end, NREL has recently initiated several collaborative efforts with industry to develop advanced reflector materials.

Jorgensen, G.

1993-05-01T23:59:59.000Z

300

Reflective coatings for solar applications  

DOE Green Energy (OSTI)

Many applications of solar energy require large mirrors to provide high levels of concentrated sunlight. The success of such conversion systems hinges on the optical durability and economic viability of the reflector materials. A major effort at the National Renewable Energy Laboratory (NREL) has been to improve the existing reflector materials technology and to identify candidates that retain optical performance and durability criteria and offer potential for reduced cost. To attain the goals, it is desirable to maintain and increase the involvement of industrial organizations in reflective materials R D related to the conversion of solar resources to useful energy. Toward this end, NREL has recently initiated several collaborative efforts with industry to develop advanced reflector materials.

Jorgensen, G.

1993-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Reflective ghost imaging through turbulence  

SciTech Connect

Recent work has indicated that ghost imaging may have applications in standoff sensing. However, most theoretical work has addressed transmission-based ghost imaging. To be a viable remote-sensing system, the ghost imager needs to image rough-surfaced targets in reflection through long, turbulent optical paths. We develop, within a Gaussian-state framework, expressions for the spatial resolution, image contrast, and signal-to-noise ratio of such a system. We consider rough-surfaced targets that create fully developed speckle in their returns and Kolmogorov-spectrum turbulence that is uniformly distributed along all propagation paths. We address both classical and nonclassical optical sources, as well as a computational ghost imager.

Hardy, Nicholas D.; Shapiro, Jeffrey H. [Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2011-12-15T23:59:59.000Z

302

The Advantages of Wearable Green Reflected Photoplethysmography  

Science Conference Proceedings (OSTI)

This report evaluates the efficacy of reflected-type green light photoplethysmography (green light PPG). Transmitted infrared light was used for PPG and the arterial pulse was monitored transcutaneously. The reflected PPG signal contains AC components ... Keywords: Green light, Heat stress, Infrared light, Photoplethysmography, Reflection

Yuka Maeda; Masaki Sekine; Toshiyo Tamura

2011-10-01T23:59:59.000Z

303

Geothermometry At Central Nevada Seismic Zone Region (Shevenell & De  

Open Energy Info (EERE)

Region (Shevenell & De Region (Shevenell & De Rocher, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Central Nevada Seismic Zone Region (Shevenell & De Rocher, 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown References Lisa Shevenell, Ted De Rocher (2005) Evaluation Of Chemical Geothermometers For Calculating Reservoir Temperatures At Nevada Geothermal Power Plants Retrieved from "http://en.openei.org/w/index.php?title=Geothermometry_At_Central_Nevada_Seismic_Zone_Region_(Shevenell_%26_De_Rocher,_2005)&oldid=401374" Category: Exploration Activities What links here

304

Detection of Gas Hydrates in Garden Banks and Keathley Canyon from Seismic Data  

E-Print Network (OSTI)

Gas hydrate is a potential energy source that has recently been the subject of much academic and industrial research. The search for deep-water gas hydrate involves many challenges that are especially apparent in the northwestern Gulf of Mexico, where the sub-seafloor is a complex structure of shallow salt diapirs and sheets underlying heavily deformed shallow sediments and surrounding diverse minibasins. Here, we consider the effect these structural factors have on gas hydrate occurrence in Garden Banks and Keathley Canyon blocks of the Gulf of Mexico. This was accomplished by first mapping the salt and shallow deformation structures throughout the region using a 2D grid of seismic reflection data. In addition, major deep-rooted faults and shallow-rooted faults were mapped throughout the area. A shallow sediment deformation map was generated that defined areas of significant faulting. We then quantified the thermal impact of shallow salt to better estimate the gas hydrate stability zone (GHSZ) thickness. The predicted base of the GHSZ was compared to the seismic data, which showed evidence for bottom simulating reflectors and gas chimneys. These BSRs and gas chimneys were used to ground-truth the calculated depth of the base of GHSZ. Finally, the calculated GHSZ thickness was used to estimate the volume of the gas hydrate reservoir in the area after determining the most reasonable gas hydrate concentrations in sediments within the GHSZ. An estimate of 5.5 trillion cubic meters of pure hydrate methane in Garden Banks and Keathley Canyon was obtained.

Murad, Idris

2009-05-01T23:59:59.000Z

305

Structural reliability analysis and seismic risk assessment  

SciTech Connect

This paper presents a reliability analysis method for safety evaluation of nuclear structures. By utilizing this method, it is possible to estimate the limit state probability in the lifetime of structures and to generate analytically the fragility curves for PRA studies. The earthquake ground acceleration, in this approach, is represented by a segment of stationary Gaussian process with a zero mean and a Kanai-Tajimi Spectrum. All possible seismic hazard at a site represented by a hazard curve is also taken into consideration. Furthermore, the limit state of a structure is analytically defined and the corresponding limit state surface is then established. Finally, the fragility curve is generated and the limit state probability is evaluated. In this paper, using a realistic reinforced concrete containment as an example, results of the reliability analysis of the containment subjected to dead load, live load and ground earthquake acceleration are presented and a fragility curve for PRA studies is also constructed.

Hwang, H.; Reich, M.; Shinozuka, M.

1984-01-01T23:59:59.000Z

306

Seismic Monitoring Of Blasting Activity In Russia  

E-Print Network (OSTI)

Two significant mining regions in Russia lie near Novosibirsk and at the Kursk Magnetic Anomaly. A small percentage of events from these areas trigger the International Monitoring System (IMS). We have studied IMS recordings of events from these areas with the main goal of better understanding how these blasts are detonated and how these events will be most effectively monitored using IMS data. We have collected ground-truth information on the mining blasts and crustal structure in the area to facilitate modeling of the events. We have focused on sifting out from further consideration routine mining events and identifying detonation anomalies. We define master traces to represent tight clusters of mining events and to be used to identify anomalous events. We have examined recordings of events from eight significant event clusters in the 500-km-long Kuzbass/Abakan mining trend near Novosibirsk. The recordings were made by the IMS station ZAL. We see significant variations in the P onset and early coda between different events in clusters. We have found strong evidence of a detonation anomaly in just one of the events (out of 178 examined). Differences in the onset wave trains are attributed largely to differences in the firing patterns. Time independent spectral modulations have been observed in seismic signals produced by delay-fired mining events in mining regions throughout the world. The Novosibirsk trend is no exception to this rule. Delay-fired events in many mining regions, such as Kuzbass/Abakan, are also commonly associated with enhanced long-period (2- to 8-s) surface waves. The mine blasts in Russian mining regions appear, seismically, to resemble large blasts recorded in other regions (such as Wyoming). Techniques found to be effective in Wyoming, reviewed by...

Michael Hedlin University; Michael A. H. Hedlin

2002-01-01T23:59:59.000Z

307

Seismic design and evaluation guidelines for the Department of Energy High-Level Waste Storage Tanks and Appurtenances  

Science Conference Proceedings (OSTI)

This document provides seismic design and evaluation guidelines for underground high-level waste storage tanks. The guidelines reflect the knowledge acquired in the last two decades in defining seismic ground motion and calculating hydrodynamic loads, dynamic soil pressures and other loads for underground tank structures, piping and equipment. The application of the guidelines is illustrated with examples. The guidelines are developed for a specific design of underground storage tanks, namely double-shell structures. However, the methodology discussed is applicable for other types of tank structures as well. The application of these and of suitably adjusted versions of these concepts to other structural types will be addressed in a future version of this document. The original version of this document was published in January 1993. Since then, additional studies have been performed in several areas and the results are included in this revision. Comments received from the users are also addressed. Fundamental concepts supporting the basic seismic criteria contained in the original version have since then been incorporated and published in DOE-STD-1020-94 and its technical basis documents. This information has been deleted in the current revision.

Bandyopadhyay, K.; Cornell, A.; Costantino, C.; Kennedy, R.; Miller, C.; Veletsos, A.

1995-10-01T23:59:59.000Z

308

Condenser optic with sacrificial reflective surface  

Science Conference Proceedings (OSTI)

Employing collector optics that has a sacrificial reflective surface can significantly prolong the useful life of the collector optics and the overall performance of the condenser in which the collector optics are incorporated. The collector optics is normally subject to erosion by debris from laser plasma source of radiation. The presence of an upper sacrificial reflective surface over the underlying reflective surface effectively increases the life of the optics while relaxing the constraints on the radiation source. Spatial and temporally varying reflectivity that results from the use of the sacrificial reflective surface can be accommodated by proper condenser design.

Tichenor, Daniel A. (Castro Valley, CA); Kubiak, Glenn D. (Livermore, CA); Lee, Sung Hun (Sunnyvale, CA)

2007-07-03T23:59:59.000Z

309

Crosswell Seismic Amplitude-Versus-Offset for Detailed Imaging of Facies and Fluid Distribution within Carbonate Oil Reservoirs  

Science Conference Proceedings (OSTI)

Crosswell seismic surveys were conducted at two fields in northern Michigan. One of these, Springdale, included two monitor wells that are located external to the reef, and the other, Coldspring, employed two production wells within the reef. The Springdale wells extended to much greater depths than the reef, and imaging was conducted from above and from beneath the reef. The resulting seismic images provide the best views of pinnacle Niagaran reefs obtained to date. The tops of the reservoirs can be clearly distinguished, and their lateral extent or dipping edges can be observed along the profile. Reflecting events internal to the reef are evident; some of them are fairly continuous across the reef and others are discontinuous. Inversion of the seismic data indicates which events represent zones of higher porosity and which are lower porosity or even anhydrite plugged. The full stacked image includes angles that are beyond critical for many of the interfaces, and some reflections are visible only for a small range of angles, presumably near their critical angle. Stacking these angles in provides an opportunity for these events to be seen on the stacked image, where otherwise they would have been unrecognized. For inversion, however, the complexity associated with phase changes beyond critical can lead to poor results, and elastic inversion of partial angle stacks may be best conducted with restrictions to angles less than critical. Strong apparent attenuation of signals occurs when seismic ray paths pass through the upper part of the Springdale reservoir; this may be due to intrinsic attenuation and/or scattering of events due to the locally strongly varying gas saturation and extremely low fluid pressures. Signal-to-noise limitations become evident far from the source well in the Coldspring study, probably because the raw data were strongly affected by tube-wave noise generated by flow through the perforation of the receiver well. The seismic images obtained, and interpretations of them, as assisted by Amplitude-versus-Angle studies and accompanying inversion, provide additional insight into the internal geometry of these two reefs and provide data that should be useful for reservoir management.

Wayne Pennington; Mohamed Ibrahim; Roger Turpening; Sean Trisch; Josh Richardson; Carol Asiala; Walid Mabrouk

2008-09-30T23:59:59.000Z

310

Seismicity And Fluid Geochemistry At Lassen Volcanic National Park,  

Open Energy Info (EERE)

Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two Circulation Cells In The Hydrothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two Circulation Cells In The Hydrothermal System Details Activities (7) Areas (2) Regions (0) Abstract: Seismic analysis and geochemical interpretations provide evidence that two separate hydrothermal cells circulate within the greater Lassen hydrothermal system. One cell originates south to SW of Lassen Peak and within the Brokeoff Volcano depression where it forms a reservoir of hot fluid (235-270°C) that boils to feed steam to the high-temperature

311

Seismic Mapping Of The Subsurface Structure At The Ryepatch Geothermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Seismic Mapping Of The Subsurface Structure At The Ryepatch Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Seismic Mapping Of The Subsurface Structure At The Ryepatch Geothermal Reservoir Details Activities (1) Areas (1) Regions (0) Abstract: In 1998 a 3-D surface seismic survey was conducted to explore the structure of the Rye Patch geothermal reservoir (Nevada) to determine if modern seismic techniques could be successfully applied in geothermal environments. Furthermore, it was intended to map the structural features which may control geothermal production in the reservoir. The results

312

Data Acquisition-Manipulation At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Data Acquisition-Manipulation At Central Nevada Seismic Zone Region Data Acquisition-Manipulation At Central Nevada Seismic Zone Region (Blackwell, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Central Nevada Seismic Zone Region (Blackwell, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Data Acquisition-Manipulation Activity Date Usefulness useful DOE-funding Unknown Notes Determining heat loss is one more tool to use in geothermal exploration. It is relatively easy to calculate if the thermal aureole has been mapped with thermal gradient well measurements. With the heat loss information, predicted production capacity can be used to help review the system being explored.

313

Vertical Seismic Profiling (Majer, 2003) | Open Energy Information  

Open Energy Info (EERE)

(Majer, 2003) (Majer, 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Vertical Seismic Profiling (Majer, 2003) Exploration Activity Details Location Unspecified Exploration Technique Vertical Seismic Profiling Activity Date Usefulness not indicated DOE-funding Unknown Notes The goal of this work is to evaluate the most promising methods and approaches that may be used for improved geothermal exploration and reservoir assessment. It is not a comprehensive review of all seismic methods used to date in geothermal environments. This work was motivated by a need to assess current and developing seismic technology that if applied in geothermal cases may greatly improve the chances for locating new geothermal resources and/or improve assessment of current ones.

314

Geographic Information System At Central Nevada Seismic Zone Region (Laney,  

Open Energy Info (EERE)

Geographic Information System At Central Nevada Seismic Zone Region (Laney, Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Regional Assessment of Exploration Potential for Geothermal Systems in The Great Basin Using a Geographic Information System (GIS) - Part II, Coolbaugh, Zehner, Raines, Shevenell, Minor, Sawatzky and Oppliger. The objective is to generate new exploration targets for both conventional and EGS capable geothermal systems by analyzing regional data in a GIS. Digital

315

Rules and Regulations Governing Geophysical, Seismic or Other Type  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Rules and Regulations Governing Geophysical, Seismic or Other Type Rules and Regulations Governing Geophysical, Seismic or Other Type Exploration on State-Owned Lands Other Than State-Owned Marine Waters (Mississippi) Rules and Regulations Governing Geophysical, Seismic or Other Type Exploration on State-Owned Lands Other Than State-Owned Marine Waters (Mississippi) < Back Eligibility Commercial Developer Fuel Distributor General Public/Consumer Industrial Investor-Owned Utility Municipal/Public Utility Utility Program Info State Mississippi Program Type Environmental Regulations Siting and Permitting Provider Mississippi Development Authority The Rules and Regulations Governing Geophysical, seismic or Other Type Exploration on State-Owned Lands Other than State-Owned Marine Waters is applicable to the Natural Gas Sector and the Coal with CCS Sector. This law

316

Definition: Teleseismic-Seismic Monitoring | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Teleseismic-Seismic Monitoring Jump to: navigation, search Dictionary.png Teleseismic-Seismic Monitoring Teleseismic monitoring is a technique to seismically image an area utilizing earthquakes originating from distances greater than 1,000 km from the measurement site.[1] View on Wikipedia Wikipedia Definition A teleseism is the tremor caused by an earthquake that is very far away. According to the USGS, the term, teleseismic refers to earthquakes that occur more than 1000 km from the measurement site. Often teleseismic events can be picked up only by seismometers that are in low background noise locations; whereas, in general, a tremor of a magnitude 5.3 earthquake can be seen anywhere in the world with modern seismic

317

Thermal Gradient Holes At Central Nevada Seismic Zone Region (Pritchett,  

Open Energy Info (EERE)

Thermal Gradient Holes At Central Nevada Seismic Zone Region (Pritchett, Thermal Gradient Holes At Central Nevada Seismic Zone Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At Central Nevada Seismic Zone Region (Pritchett, 2004) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Thermal Gradient Holes Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best

318

Seismic Hazard Assessment of the Sheki-Ismayilli Region, Azerbaijan  

Science Conference Proceedings (OSTI)

Seismic hazard assessment is an important factor in disaster management of Azerbaijan Republic. The Shaki-Ismayilli region is one of the earthquake-prone areas in Azerbaijan. According to the seismic zoning map, the region is located in intensity IX zone. Large earthquakes in the region take place along the active faults. The seismic activity of the Shaki-Ismayilli region is studied using macroseismic and instrumental data, which cover the period between 1250 and 2003. Several principal parameters of earthquakes are analyzed: maximal magnitude, energetic class, intensity, depth of earthquake hypocenter, and occurrence. The geological structures prone to large earthquakes are determined, and the dependence of magnitude on the fault length is shown. The large earthquakes take place mainly along the active faults. A map of earthquake intensity has been developed for the region, and the potential seismic activity of the Shaki-Ismayilli region has been estimated.

Ayyubova, Leyla J. [Geology Institute, Azerbaijan National Academy of Sciences, 29A, H. Javid Ave., Baku 1143 (Azerbaijan)

2006-03-23T23:59:59.000Z

319

Non-linear Seismic Soil Structure Interaction Method for Developing...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

OF A HIGH- TEMPERATURE GAS-COOLED REACTOR (HTGR)" Kennedy, R.P. e.t. all. 1975 * NUREGCR-6957, CORRELATION OF ANALYSIS OF JNES SEISMIC WALL PRESSURE DATA FOR ABWR MODEL...

320

3-D Seismic Methods For Geothermal Reservoir Exploration And...  

Open Energy Info (EERE)

(1) Regions (0) Abstract: A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The...

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Hypercube performance for 2-D seismic finite-difference modeling  

Science Conference Proceedings (OSTI)

Wave-equation seismic modeling in two space dimensions is computationally intensive, often requiring hours of supercomputer CPU time to run typical geological models with 500 500 grids and 100 sources. This paper analyzes the performance of ACOUS2D, ...

L. J. Baker

1989-01-01T23:59:59.000Z

322

Evaluation of Horizontal Seismic Hazard of Shahrekord, Iran  

Science Conference Proceedings (OSTI)

This paper presents probabilistic horizontal seismic hazard assessment of Shahrekord, Iran. It displays the probabilistic estimate of Peak Ground Horizontal Acceleration (PGHA) for the return period of 75, 225, 475 and 2475 years. The output of the probabilistic seismic hazard analysis is based on peak ground acceleration (PGA), which is the most common criterion in designing of buildings. A catalogue of seismic events that includes both historical and instrumental events was developed and covers the period from 840 to 2007. The seismic sources that affect the hazard in Shahrekord were identified within the radius of 150 km and the recurrence relationships of these sources were generated. Finally four maps have been prepared to indicate the earthquake hazard of Shahrekord in the form of iso-acceleration contour lines for different hazard levels by using SEISRISK III software.

Amiri, G. Ghodrati [Iran University of Science and Technology--Islamic Azad University of Shahrekord, Narmak, Tehran 16846 (Iran, Islamic Republic of); Dehkordi, M. Raeisi [Department of Civil Engineering, Islamic Azad University of Shahrekord (Iran, Islamic Republic of); Amrei, S. A. Razavian [College of Civil Engineering, Iran University of Science and Technology, Tehran (Iran, Islamic Republic of); Kamali, M. Koohi [Department of Civil Engineering, Islamic Azad University of Shahrekord (Iran, Islamic Republic of)

2008-07-08T23:59:59.000Z

323

Effects of Recent Environmental Changes on Global Seismicity and Volcanism  

Science Conference Proceedings (OSTI)

A covariation of recent global environmental changes and seismicity on Earth is demonstrated. Presently, rising concern about anthropogenic activities and their consequences on the cryosphere and environment have always overlooked changes related ...

Evgeny A. Podolskiy

2009-05-01T23:59:59.000Z

324

Central Nevada Seismic Zone Geothermal Region | Open Energy Informatio...  

Open Energy Info (EERE)

mW 0.385 GW 3.85e-4 TW Plants Included in Planned Estimate 4 Plants with Unknown Planned Capacity 9 Geothermal Areas within the Central Nevada Seismic Zone Geothermal Region...

325

The retrofitting of existing buildings for seismic criteria  

E-Print Network (OSTI)

This thesis describes the process for retrofitting a building for seismic criteria. It explains the need for a new, performance-based design code to provide a range of acceptable building behavior. It then outlines the ...

Besing, Christa, 1978-

2004-01-01T23:59:59.000Z

326

Understanding seismic design criteria for Japanese nuclear power plants  

SciTech Connect

This paper summarizes the results of recent survey studies on the seismic design practice for nuclear power plants in Japan. The seismic design codes and standards for both nuclear as well as non-nuclear structures have been reviewed and summarized. Some key documents for understanding Japanese seismic design criteria are also listed with brief descriptions. The paper highlights the design criteria to determine the seismic demand and component capacity in comparison with US criteria, the background studies which have led to the current Japanese design criteria, and a survey of current research activities. More detailed technical descriptions are presented on the development of Japanese shear wall equations, design requirements for containment structures, and ductility requirements.

Park, Y.J.; Hofmayer, C.H. [Brookhaven National Lab., Upton, NY (United States); Costello, J.F. [US Nuclear Regulatory Commission, Washington, DC (United States)

1994-12-31T23:59:59.000Z

327

Design of innovative dynamic systems for seismic response mitigation  

E-Print Network (OSTI)

Rocking wall systems consist of shear walls, laterally connected to a building, that are moment-released in their strong plane. Their purpose is to mitigate seismic structural response by constraining a building primarily ...

Seymour, Douglas (Douglas Benjamin)

2012-01-01T23:59:59.000Z

328

Applicaiton of the Computer Program SASSI for Seismic SSI Analysis...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Computer Program SASSI for Seismic SSI Analysis of WTP Facilities Farhang Ostadan (BNI) & Raman Venkata (DOE-WTP-WED) Presented by Lisa Anderson (BNI) US DOE NPH Workshop October...

329

Seismic Capacity of Threaded, Brazed, and Grooved Pipe Joints  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SEISMIC CAPACITY OF THREADED, BRAZED AND GROOVED PIPE JOINTS Brent Gutierrez, PhD, PE George Antaki, PE, F.ASME DOE NPH Conference October 25-26, 2011 Motivation * Understand the...

330

Statistical study of seismicity associated with geothermal reservoirs in California  

DOE Green Energy (OSTI)

Statistical methods are outlined to separate spatially, temporally, and magnitude-dependent portions of both the random and non-random components of the seismicity. The methodology employed compares the seismicity distributions with a generalized Poisson distribution. Temporally related events are identified by the distribution of the interoccurrence times. The regions studied to date include the Imperial Valley, Coso, The Geysers, Lassen, and the San Jacinto fault. The spatial characteristics of the random and clustered components of the seismicity are diffuse and appear unsuitable for defining the areal extent of the reservoir. However, from the temporal characteristics of the seismicity associated with these regions a general discriminant was constructed that combines several physical parameters for identifying the presence of a geothermal system.

Hadley, D.M.; Cavit, D.S.

1982-01-01T23:59:59.000Z

331

Modeling-Computer Simulations At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Central Nevada Seismic Zone Region Central Nevada Seismic Zone Region (Blackwell, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Blackwell, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Modeling-Computer Simulations Activity Date Usefulness useful DOE-funding Unknown Notes Developed natural state mass and energy transport fluid flow models of generic Basin and Range systems based on Dixie Valley data that help to understand the nature of large scale constraints on the location and characteristics of the geothermal systems References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of

332

State of Seismic Methods For Geothermal Reservoir Exploration and Assessment  

Office of Scientific and Technical Information (OSTI)

3-D Seismic Methods For Geothermal Reservoir Exploration 3-D Seismic Methods For Geothermal Reservoir Exploration and Assessment - Summary E.L Majer Lawrence Berkeley National Laboratory Introduction A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally fractured reservoirs. The application could be for exploration of new resources or for in-fill/step-out drilling in existing fields. In most geothermal environments the

333

Third Quater Seismic Report for Fiscal Year 2007  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The Hanford Seismic Assessment Team locates and identifies sources of seismic activity and monitors changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, Natural Phenomena Hazards assessments, and engineering design and construction. In addition, the seismic monitoring organization works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 41 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. For the Hanford Seismic Network, 16 local earthquakes were recorded during the third quarter of fiscal year 2007. The largest event (magnitude 2.0) occurred on April 16, 2007 and was located 4 km southwest of the 400 Area in the Columbia River basalts at a depth of approximately 3 km. Stratigraphically, 7 earthquakes occurred in the Columbia River basalts (approximately 0-5 km depth), 1 earthquake in the pre-basalt sediments (approximately 5-10 km depth), and 8 earthquakes in the crystalline basement (approximately 10-25 km depth). Geographically, 8 earthquakes occurred in swarm areas, and 8 earthquakes were classified as random events. The Hanford SMA network was triggered on the 300 Area and the 400 Area SMA by the 2.0 Mc seismic event that occurred on April 16, 2007. The maximum vertical acceleration was 0.07 % g and the maximum horizontal acceleration was 0.05% g at the 300 Area SMA, 13.5 km from the event. At the 400 Area SMA, only 5.2 km from the event, the maximum vertical acceleration was 0.25 % g and the maximum horizontal acceleration was 0.23% g. These are the first recordings of a small local earthquake on the SMA network. The reportable action level of 2% g for Hanford facilities is approximately 8 times larger than the peak accelerations observed at the 400 Area and no action was required.

Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E.; Devary, Joseph L.

2007-09-19T23:59:59.000Z

334

Experience Based Seismic Verification Guidelines for Overhead Crane Systems: Volume I - Seismic Review Procedure; Volume II - Performance of Overhead Cranes in Strong Motion Earthquakes  

Science Conference Proceedings (OSTI)

This report provides guidelines that can be used to perform an experience-based seismic capability verification of overhead cranes systems at nuclear power plants. The report summarizes seismic experience data from strong-motion earthquakes for these systems and identifies the characteristics of systems that could lead to failure or unacceptable behavior in an earthquake. The seismic experience data show that overhead crane systems exhibit extremely good performance under strong-motion seismic loading, w...

2005-06-08T23:59:59.000Z

335

Seismicity related to geothermal development in Dixie Valley, Nevada  

DOE Green Energy (OSTI)

A ten-station seismic network was operated in and around the Dixie Valley area from January 1980 to November 1981; three of these stations are still in operation. Data from the Dixie Valley network were analyzed through 30 Jun 1981, and results of analysis were compared with analysis of somewhat larger events for the period 1970-1979. The seismic cycle in the Western Great Basic, the geologic structural setting, and the instrumentation are also described.

Ryall, A.S.; Vetter, U.R.

1982-07-08T23:59:59.000Z

336

Seismic review of vault for MFTF upgrade project  

SciTech Connect

This letter report was prepared in accordance with the scope of work for the preconceptual seismic evaluation of the (..cap alpha.. + T) Tandem Mirror Fusion Machine concrete vault. The scope of the work was developed with the assistance of the Bechtel site representative Dr. Sunil Ghose. The report contains comments and preconceptual recommendations on wall upgrading for an 150-ton crane installation, concrete vault seismic capability for (..cap alpha.. + T) conditions, and recommendations for future work.

Franklin, H.A.

1983-09-29T23:59:59.000Z

337

Thermonuclear Reflect AB-Reactor  

E-Print Network (OSTI)

The author offers a new kind of thermonuclear reflect reactor. The remarkable feature of this new reactor is a three net AB reflector, which confines the high temperature plasma. The plasma loses part of its energy when it contacts with the net but this loss can be compensated by an additional permanent plasma heating. When the plasma is rarefied (has a small density), the heat flow to the AB reflector is not large and the temperature in the triple reflector net is lower than 2000 - 3000 K. This offered AB-reactor has significantly less power then the currently contemplated power reactors with magnetic or inertial confinement (hundreds-thousands of kW, not millions of kW). But it is enough for many vehicles and ships and particularly valuable for tunnelers, subs and space apparatus, where air to burn chemical fuel is at a premium or simply not available. The author has made a number of innovations in this reactor, researched its theory, developed methods of computation, made a sample computation of typical pr...

Bolonkin, Alexander

2008-01-01T23:59:59.000Z

338

Thermonuclear Reflect AB-Reactor  

E-Print Network (OSTI)

The author offers a new kind of thermonuclear reflect reactor. The remarkable feature of this new reactor is a three net AB reflector, which confines the high temperature plasma. The plasma loses part of its energy when it contacts with the net but this loss can be compensated by an additional permanent plasma heating. When the plasma is rarefied (has a small density), the heat flow to the AB reflector is not large and the temperature in the triple reflector net is lower than 2000 - 3000 K. This offered AB-reactor has significantly less power then the currently contemplated power reactors with magnetic or inertial confinement (hundreds-thousands of kW, not millions of kW). But it is enough for many vehicles and ships and particularly valuable for tunnelers, subs and space apparatus, where air to burn chemical fuel is at a premium or simply not available. The author has made a number of innovations in this reactor, researched its theory, developed methods of computation, made a sample computation of typical project. The main point of preference for the offered reactor is its likely cheapness as a power source. Key words: Micro-thermonuclear reactor, Multi-reflex AB-thermonuclear reactor, Self-magnetic AB-thermonuclear reactor, aerospace thermonuclear engine.

Alexander Bolonkin

2008-03-26T23:59:59.000Z

339

Quantifying one and two dimensional lateral heterogeneities in fluvio-deltaic reservoirs using 3-D seismic data  

Science Conference Proceedings (OSTI)

We document scale-invariant statistics and strong anisotropy in rock properties from well log and 3-D seismic data in fluvial/deltaic reservoirs in the El 330 Field, Gulf of Mexico. The scarcity of well log data in the lateral direction necessitates the use of lower resolution seismic data to quantify lateral heterogeneity. Spectral analysis of two dimensional seismic horizon slices and one dimensional traces extracted form the 3-D data cube reveal scale invariant behavior with a characteristic correlation parameter ([beta]) in both dimensions. This parameter captures the degree of correlation in profiles or surfaces ([beta]=0) for white noise. Two dimensional analysis of the horizon slice indicates a ([beta]) value of approximately 2.0 while analysis of one dimensional profiles from the same slice reveal an anisotropy along depositional strike and dip with ([beta]) values of 1.6 and 2.1, respectively. The higher correlation observed in the direction of stratigraphic dip may reflect the stratigraphic fabric associated with channel systems. This one dimensional lateral variability in seismic data also matches the variability in higher resolution horizontal well log data suggesting a scale invariant behavior over approximately 3 orders of magnitude (1-1000 feet). Different depositional environments within specific systems tracts may have characteristic correlation parameters that provide insight into one and two dimensional lateral variations of reservoir heterogeneity. Correlation parameters obtained in these environments may then be used to quantify rock fabric and provide constraints in the simulation of rock property fields in the inter-well region.

Deutsch, H.A.; Douglass, R. (Bechtel Petroleum Operations Inc., Tupman, CA (United States)); Hamilton, D.E. (Subsurface Computer Modeling, Inc., Austin, TX (United States))

1996-01-01T23:59:59.000Z

340

Virginia Regional Seismic Network. Final report (1986--1992)  

SciTech Connect

In 1986, the Virginia Regional Seismic Network was one of the few fully calibrated digital seismic networks in the United States. Continued operation has resulted in the archival of signals from 2,000+ local, regional and teleseismic sources. Seismotectonic studies of the central Virginia seismic zone showed the activity in the western part to be related to a large antiformal structure while seismicity in the eastern portion is associated spatially with dike swarms. The eastern Tennessee seismic zone extends over a 300x50 km area and is the result of a compressive stress field acting at the intersection between two large crustal blocks. Hydroseismicity, which proposes a significant role for meteoric water in intraplate seismogenesis, found support in the observation of common cyclicities between streamflow and earthquake strain data. Seismic hazard studies have provided the following results: (1) Damage areas in the eastern United States are three to five times larger than those observed in the west. (2) Judged solely on the basis of cataloged earthquake recurrence rates, the next major shock in the southeast region will probably occur outside the Charleston, South Carolina area. (3) Investigations yielded necessary hazard parameters (for example, maximum magnitudes) for several sites in the southeast. Basic to these investigations was the development and maintenance of several seismological data bases.

Bollinger, G.A.; Sibol, M.S.; Chapman, M.C.; Snoke, J.A. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (US). Seismological Observatory

1993-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Seismic design and evaluation criteria based on target performance goals  

SciTech Connect

The Department of Energy utilizes deterministic seismic design/evaluation criteria developed to achieve probabilistic performance goals. These seismic design and evaluation criteria are intended to apply equally to the design of new facilities and to the evaluation of existing facilities. In addition, the criteria are intended to cover design and evaluation of buildings, equipment, piping, and other structures. Four separate sets of seismic design/evaluation criteria have been presented each with a different performance goal. In all these criteria, earthquake loading is selected from seismic hazard curves on a probabilistic basis but seismic response evaluation methods and acceptable behavior limits are deterministic approaches with which design engineers are familiar. For analytical evaluations, conservatism has been introduced through the use of conservative inelastic demand-capacity ratios combined with ductile detailing requirements, through the use of minimum specified material strengths and conservative code capacity equations, and through the use of a seismic scale factor. For evaluation by testing or by experience data, conservatism has been introduced through the use of an increase scale factor which is applied to the prescribed design/evaluation input motion.

Murray, R.C.; Nelson, T.A. [Lawrence Livermore National Lab., CA (United States); Kennedy, R.P. [Structural Mechanics Consulting, Inc., Yorba Linda, CA (United States); Short, S.A. [EQE International, Inc., Irvine, CA (United States)

1994-04-01T23:59:59.000Z

342

REFLECTED LIGHT INTENSITY DISTRIBUTIONS FROM DEFECTS ON HIGHLY REFLECTIVE SPHERES PDO 6984778, Topical Report  

SciTech Connect

A light reflection technique suitable for development into an automated surface quality certification system was investigated to determine if reflected light intensity distributions could be corre]ated with surface defect depths. Reflected laser light intensity distributions from pit and scratch defects on highly reflective spheres were studied with a commercial multi-element photodetector. It was found that the intensity distributions --Goll'lf be correlated with depths of pits and scratches in a size range of concern on highly reflective' spheres.

Klingsport, P. E.

1977-02-01T23:59:59.000Z

343

Photovoltaic module with light reflecting backskin  

DOE Patents (OSTI)

A photovoltaic module comprises electrically interconnected and mutually spaced photovoltaic cells that are encapsulated by a light-transmitting encapsulant between a light-transparent front cover and a back cover, with the back cover sheet being an ionomer/nylon alloy embossed with V-shaped grooves running in at least two directions and coated with a light reflecting medium so as to provide light-reflecting facets that are aligned with the spaces between adjacent cells and oriented so as to reflect light falling in those spaces back toward said transparent front cover for further internal reflection onto the solar cells, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to the photovoltaic cells, thereby increasing the current output of the module. The internal reflector improves power output by as much as 67%.

Gonsiorawski, Ronald C. (Danvers, MA)

2007-07-03T23:59:59.000Z

344

Annual Hanford Seismic Report for Fiscal Year 2008  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the HSAP works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. During fiscal year 2008, the Hanford Seismic Network recorded 1431 triggers on the seismometer system, which included 112 seismic events in the southeast Washington area and an additional 422 regional and teleseismic events. There were 74 events determined to be local earthquakes relevant to the Hanford Site. The highest-magnitude event (3.7 Mc) occurred on May 18, 2008, and was located approximately 17 km east of Prosser at a depth of 20.5 km. With regard to the depth distribution, 13 earthquakes were located at shallow depths (less than 4 km, most likely in the Columbia River basalts), 45 earthquakes were located at intermediate depths (between 4 and 9 km, most likely in the pre-basalt sediments), and 16 earthquakes were located at depths greater than 9 km, within the crystalline basement. Geographically, 54 earthquakes were located in swarm areas and 20 earthquakes were classified as random events. The May 18 earthquake was the highest magnitude event recorded since 1975 in the vicinity of the Hanford Site (between 46 degrees and 47 degrees north latitude and 119 degrees and 120 degrees west longitude). The event was not reported as being felt on the Hanford Site or causing any damage and was communicated to the Pacific Northwest National Laboratory Operations Center per HSAP communications procedures. The event is not considered to be significant with regard to site safety and not unprecedented given the sites seismic history. The Hanford strong motion accelerometer (SMA) stations at the 200 East Area, 300 Area, and 400 Area were triggered by the May 18 event. The maximum acceleration recorded at the SMA stations (0.17% at the 300 Area) was 12 times smaller than the reportable action level (2% g) for Hanford Site facilities.

Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E.; Devary, Joseph L.

2008-12-29T23:59:59.000Z

345

Seismic Behaviour of Vertical Mass Isolated Structures  

SciTech Connect

In this paper, the seismic behaviour of vertical mass isolated structures against the earthquake is studied. These structures are assumed to be consisted of two subsystems. Mass subsystem possesses low lateral stiffness but carries the major part of mass of the system. Stiffness subsystem, however, controls the deformation of the mass subsystem and attributes with much higher stiffness. The isolator layer is, therefore, located in between the mass and the stiffness subsystems and assumed to be a viscous damper layer. The analytical model used for this investigation is a dual mass-spring model which is an extended form of the three element Maxwell model. In this study, the ability of mass isolation techniques in reducing earthquake effects on buildings with two approaches, parametric and numerical approaches, is shown. In the parametric approach, by definition an isolation factor for structure and determination the dynamic characteristics of system, the relative optimum value of the isolator damping coefficient is obtained. The results provide an insight on role of relative stiffness and mass ratio of the two subsystems. Finally, in the numerical approach, the spectral responses of these structures due to the earthquake are investigated. The results show a noticeable decrease in earthquake input force to vertical mass isolated structures in comparison with non-isolated structures.

Nekooei, M.; Ziyaeifar, M. [Structural Engineering Research Centre, International Institute of Earthquake Engineering and Seismology (IIEES), P.O. Box 19395-3913, Tehran (Iran, Islamic Republic of)

2008-07-08T23:59:59.000Z

346

Natural gas consumption reflects shifting sectoral patterns ...  

U.S. Energy Information Administration (EIA)

U.S. natural gas consumption since 1997 reflects shifting patterns. Total U.S. natural gas consumption rose 7% between 1997 and 2011, but this modest ...

347

5. Consumer Prices Reflect Benefits of Restructuring  

U.S. Energy Information Administration (EIA)

Energy Information Administration Natural Gas 1996: Issues and Trends 99 5. Consumer Prices Reflect Benefits of Restructuring The restructuring of the natural gas ...

348

On HVAC duct acoustical end reflection  

Science Conference Proceedings (OSTI)

Duct end reflection (ER) is the apparent loss of sound power resulting from an abrupt change in a cross?sectional area of the duct. In most references

2000-01-01T23:59:59.000Z

349

Measuring Light Reflectance of BGO Crystal Surfaces  

E-Print Network (OSTI)

Carlo program simulating light propagation in isotropic orTermsLambertian reflection, light collection, Monte Carloy-axis) and fraction specular light (right y- axis) for a

Janecek, Martin

2009-01-01T23:59:59.000Z

350

Reflective Coherent Spatial Light Modulator (RCSLM)  

Reflective Coherent Spatial Light Modulator (RCSLM) Note: The technology described above is an early stage opportunity. Licensing rights to this intellectual property may

351

Does Shareholder Voting Reflect Shareholder Preferences?  

E-Print Network (OSTI)

=980422. Kamar, Ehud. 2006. Does Shareholder Voting onDoes Shareholder Voting Reflect Shareholder Preferences?contests. The literature that does exist is methodologically

Listokin, Yair Jason

2007-01-01T23:59:59.000Z

352

Sandia National Laboratories Solar Reflection Panels  

Sandia National Laboratories Solar Reflection Panels HTTPS://IP.SANDIA.GOV Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia ...

353

Teleseismic-Seismic Monitoring At Coso Geothermal Area (2011-2012) | Open  

Open Energy Info (EERE)

2012) 2012) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (2011-2012) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 2011 - 2012 Usefulness not indicated DOE-funding Unknown Exploration Basis Map hydraulic structure within the field from seismic data Notes 2011: 16 years of seismicity were analyzed to improve hypocentral locations and simultaneously invert for the seismic velocity structure within the Coso Geothermal Field (CGF). The CGF has been continuously operated since the 1980's. 2012: 14 years of seismicity in the Coso Geothermal Field were relocated using differential travel times and simultaneously invert for

354

Azimuthal variation of radiation of seismic energy from cast blasts  

SciTech Connect

As part of a series of seismic experiments designed to improve the understanding of the impact of mining blasts on verifying a Comprehensive Test Ban Treaty, a sixteen station network of three-component seismic sensors were deployed around a large cast shot in the Black Thunder Mine. The seismic stations were placed, where possible, at a range of 2.5 kilometers with a constant inter-station spacing of 22.5 degrees. All of the data were recorded with the seismometers oriented such that the radial component pointed to the middle point of the approximately 2 kilometer long shot. High quality data were recorded at each station. Data were scaled to a range of 2.5 kilometers and the sum of the absolute value of the vertical, radial, and transverse channels computed. These observations were used to construct radiation patterns of the seismic energy propagating from the cast shot. It is obvious that cast shots do not radiate seismic energy isotropically. Most of the vertical motion occurs behind the highwall while radial and transverse components of motion are enhanced in directions parallel to the highwall. These findings have implications for local (0.1 to 15 kilometer range) and possibly for regional (100 to 2,000 kilometer range) seismic observations of cast blasting. Locally, it could be argued that peak particle velocities could be scaled not only by range but also by azimuthal direction from the shot. This result implies that long term planning of pit orientation relative to sensitive structures could mitigate problems with vibration levels from future blasting operations. Regionally, the local radiation pattern may be important in determining the magnitude of large scale cast blasts. Improving the transparency of mining operations to international seismic monitoring systems may be possible with similar considerations.

Pearson, D.C.; Stump, B.W. [Los Alamos National Lab., NM (United States); Martin, R.L. [Thunder Basin Coal Co., Wright, WY (United States)

1996-12-31T23:59:59.000Z

355

Identification coding schemes for modulated reflectance systems  

DOE Patents (OSTI)

An identifying coding apparatus employing modulated reflectance technology involving a base station emitting a RF signal, with a tag, located remotely from the base station, and containing at least one antenna and predetermined other passive circuit components, receiving the RF signal and reflecting back to the base station a modulated signal indicative of characteristics related to the tag.

Coates, Don M. (Santa Fe, NM); Briles, Scott D. (Los Alamos, NM); Neagley, Daniel L. (Albuquerque, NM); Platts, David (Santa Fe, NM); Clark, David D. (Santa Fe, NM)

2006-08-22T23:59:59.000Z

356

Data Souvenirs: Environmental psychology and reflective design  

Science Conference Proceedings (OSTI)

The physical form of technology and its relationship to the surrounding environment is an important factor in design; we argue that this is especially true in the design of reflective technology. We suggest environmental psychology theory as a tool for ... Keywords: Design, Environmental psychology, Personal reflection, Tangible interfaces

Ryan Aipperspach; Ben Hooker; Allison Woodruff

2011-05-01T23:59:59.000Z

357

Seismic response analyses for reactor facilities at Savannah River  

Science Conference Proceedings (OSTI)

The reactor facilities at the Savannah River Plant (SRP) were designed during the 1950's. The original seismic criteria defining the input ground motion was 0.1 G with UBC (uniform building code) provisions used to evaluate structural seismic loads. Later ground motion criteria have defined the free field seismic motion with a 0.2 G ZPA (free field acceleration) and various spectral shapes. The spectral shapes have included the Housner spectra, a site specific spectra, and the US NRC (Nuclear Regulatory Commission) Reg. Guide 1.60 shape. The development of these free field seismic criteria are discussed in the paper. The more recent seismic analyses have been of the following type: fixed base response spectra, frequency independent lumped parameter soil/structure interaction (SSI), frequency dependent lumped parameter SSI, and current state of the art analyses using computer codes such as SASSI. The results from these computations consist of structural loads and floor response spectra (used for piping and equipment qualification). These results are compared in the paper and the methods used to validate the results are discussed. 14 refs., 11 figs.

Miller, C.A. Costantino, C.J. (City Univ. of New York, NY (USA)); Xu, J. (Brookhaven National Lab., Upton, NY (USA))

1991-01-01T23:59:59.000Z

358

Seismic Hazard Assessment of Tehran Based on Arias Intensity  

SciTech Connect

In this paper probabilistic seismic hazard assessment of Tehran for Arias intensity parameter is done. Tehran is capital and most populated city of Iran. From economical, political and social points of view, Tehran is the most significant city of Iran. Since in the previous centuries, catastrophic earthquakes have occurred in Tehran and its vicinity, probabilistic seismic hazard assessment of this city for Arias intensity parameter is useful. Iso-intensity contour lines maps of Tehran on the basis of different attenuation relationships for different earthquake periods are plotted. Maps of iso-intensity points in the Tehran region are presented using proportional attenuation relationships for rock and soil beds for 2 hazard levels of 10% and 2% in 50 years. Seismicity parameters on the basis of historical and instrumental earthquakes for a time period that initiate from 4th century BC and ends in the present time are calculated using Tow methods. For calculation of seismicity parameters, the earthquake catalogue with a radius of 200 km around Tehran has been used. SEISRISKIII Software has been employed. Effects of different parameters such as seismicity parameters, length of fault rupture relationships and attenuation relationships are considered using Logic Tree.

Amiri, G. Ghodrati [Center of Excellence for Fundamental Studies in Structural Engineering, College of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran 16846 (Iran, Islamic Republic of); Mahmoodi, H. [College of Civil Engineering, Iran University of Science and Technology, Tehran (Iran, Islamic Republic of); Amrei, S. A. Razavian [College of Civil Engineering, Iran University of Science and Technology, Tehran (Iran, Islamic Republic of)

2008-07-08T23:59:59.000Z

359

Aging of reflective roofs: soot deposition  

Science Conference Proceedings (OSTI)

Solar-reflective roofs remain cooler than absorptive roofs and thus conserve electricity otherwise needed for air conditioning. A currently controversial aspect of solar-reflective cool roofing is the extent to which an initially high solar reflectance decreases with time. We present experimental data on the spectral absorption of deposits that accumulate on roofs, and we attribute most of the absorption to carbon soot originally produced by combustion. The deposits absorb more at short wavelengths (e.g., in the blue) than in the red and infrared, imparting a slightly yellow tinge to formerly white surfaces. The initial rate of reflectance reduction by soot accumulation is consistent with known emission rates that are due to combustion. The long-term reflectance change appears to be determined by the ability of the soot to adhere to the roof, resisting washout by rain.

Berdahl, Paul; Akbari, Hashem; Rose, Leanna S.

2001-05-01T23:59:59.000Z

360

Reflectance based optical fiber chemical sensor  

DOE Patents (OSTI)

A thin film chemical sensor undergoes changes in reflective optical properties when exposed to a chemical species. A thin metal film is deposited at the end of an optical fiber, and exposure of the thin film to the chemical species causes changes in the effective thickness of the thin film, thereby changing its reflective properties. A chemical detection system based on the thin film sensor includes a light source and an optical divider for dividing light from the light source into a first and second light path. The first light path leads to circuitry for providing a reference signal. The thin film chemical sensor receives light from the second light path, and a photoelectric detector detects light reflected from the chemical sensor and provides an electrical signal representative of the reflected light. Circuitry is provided for comparing the reference signal with the reflected light signal, thereby providing a measurement signal indicative of the presence of the chemical species. 5 figs.

Butler, M.A.; Pfeifer, K.B.; Ricco, A.J.

1988-10-18T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

U-043: Attachmate Reflection Buffer Overflow in FTP Client Lets...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

for HP version 14.x Reflection for UNIX and OpenVMS version 14.x Reflection for ReGIS Graphics version 14.x Reflection for IBM version 14.x Reflection X version 14.x ABSTRACT: A...

362

Induced seismicity analysis for reservoir characterization at a petroleum field in Oman  

E-Print Network (OSTI)

This thesis presents the analysis and interpretation of passive seismic data collected in a 20-month monitoring period. The investigation is divided into four studies, each focusing on a different aspect of the seismic ...

Sze, Edmond Kin-Man

2005-01-01T23:59:59.000Z

363

Seismic Hazard Characterization at the DOE Savannah River Site (SRS): Status report  

Science Conference Proceedings (OSTI)

The purpose of the Seismic Hazard Characterization project for the Savannah River Site (SRS-SHC) is to develop estimates of the seismic hazard for several locations within the SRS. Given the differences in the geology and geotechnical characteristics at each location, the estimates of the seismic hazard are to allow for the specific local conditions at each site. Characterization of seismic hazard is a critical factor for the design of new facilities as well as for the review and potential retrofit of existing facilities at SRS. The scope of the SRS seismic hazard characterization reported in this document is limited to the Probabilistic Seismic Hazard Analysis (PSHA). The goal of the project is to provide seismic hazard estimates based on a state-of-the-art method which is consistent with developments and findings of several ongoing studies which are deemed to bring improvements in the state of the seismic hazard analyses.

Savy, J.B.

1994-06-24T23:59:59.000Z

364

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants January 31, 2012 - 2:09pm Addthis The Electric Power Research Institute (EPRI), the U.S. Department of Energy (DOE), and the U.S. Nuclear Regulatory Commission (NRC) released a new seismic study today that will help U.S. nuclear facilities in the central and eastern United States reassess seismic hazards. The Central and Eastern United States Seismic Source Characterization for Nuclear Facilities model and report is the culmination of a four-year effort among the participating organizations and replaces previous seismic source models used by industry and government since the late 1980s. The NRC is requesting U.S. nuclear power plants to reevaluate seismic

365

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants January 31, 2012 - 2:09pm Addthis The Electric Power Research Institute (EPRI), the U.S. Department of Energy (DOE), and the U.S. Nuclear Regulatory Commission (NRC) released a new seismic study today that will help U.S. nuclear facilities in the central and eastern United States reassess seismic hazards. The Central and Eastern United States Seismic Source Characterization for Nuclear Facilities model and report is the culmination of a four-year effort among the participating organizations and replaces previous seismic source models used by industry and government since the late 1980s. The NRC is requesting U.S. nuclear power plants to reevaluate seismic

366

Direct-Current Resistivity At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

At Central Nevada Seismic At Central Nevada Seismic Zone Region (Pritchett, 2004) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best way to find "hidden" basin and range geothermal resources of this general type is to carry out simultaneous SP and low-frequency MT surveys, and then

367

Seismic Analysis of Existing Facilties and Evaluation of Risk (SAFER)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Seismic Analysis of Facilities Seismic Analysis of Facilities and Evaluation of Risk Michael Salmon, LANL Larry, Goen, LANL Voice: 505-665-7244 Fax: 505-665-2897 salmon@lanl.gov 10/22/2008 p. 2, LA-UR 11-06024 Purpose * To discuss LANLs implementation of SAFER and lessons learned * Background * Results * Lessons learned 10/22/2008 p. 3, LA-UR 11-06024 SAFER Project * Project Mission - Conduct quantitative evaluation of seismic risk due to operations of Nuclear and High Hazard (DSA) Facilities at LANL operating under a Documented Safety Analysis/Safety Evaluation Report - and Non-nuclear (BOP) Facilities operating under E.O. 12941. 10/22/2008 p. 4, LA-UR 11-06024 Composition * SAFER comprised of two major efforts: - Non-nuclear Facilities termed "Balance of Plant" (BOP) Facilities

368

Progress and issues in single well seismic imaging | Open Energy  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Progress and issues in single well seismic imaging Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Progress and issues in single well seismic imaging Authors Thomas M. Daley, Ernest L. Majer, Roland Gritto and Jerry M. Harris Conference 70th Annual International Meeting of the Society of Exploration Geophysicists, Expanded Abstracts; N/A; 2000/01/01 Published N/A, 2000 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Progress and issues in single well seismic imaging Citation

369

Teleseismic-Seismic Monitoring At Valles Caldera - Sulphur Springs Area  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring At Valles Caldera - Teleseismic-Seismic Monitoring At Valles Caldera - Sulphur Springs Area (Roberts, Et Al., 1995) Exploration Activity Details Location Valles Caldera - Sulphur Springs Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date Usefulness useful DOE-funding Unknown Notes We have described the experimental details, data analysis and forward modeling for scattered-wave amplitude data recorded during a teleseismic earthquake survey performed in the Valles Caldera in the summer of 1987. Twenty-four high-quality teleseismic events were recorded at numerous sites along a line spanning the ring fracture and at several sites outside of the caldera. References Peter M. Roberts, Keiiti Aki, Michael C. Fehler (1995) A Shallow Attenuating Anomaly Inside The Ring Fracture Of The Valles Caldera, New

370

Geographic Information System At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Blewitt, Et Al., 2003) Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Geoffrey Blewittl, Mark F. Coolbaugh, Don Sawatzky, William Holt, James Davis, Richard A. Bennett (2003) Targeting Of Potential Geothermal Resources In The Great Basin From Regional To Basin-Scale Relationship Between Geodetic Strain And Geological Structures Retrieved from "http://en.openei.org/w/index.php?title=Geographic_Information_System_At_Central_Nevada_Seismic_Zone_Region_(Blewitt,_Et_Al.,_2003)&oldid=401370"

371

Self Potential At Central Nevada Seismic Zone Region (Pritchett, 2004) |  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Self Potential At Central Nevada Seismic Zone Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Self Potential At Central Nevada Seismic Zone Region (Pritchett, 2004) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Self Potential Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden"

372

3-D Seismic Methods For Geothermal Reservoir Exploration And  

Open Energy Info (EERE)

Methods For Geothermal Reservoir Exploration And Methods For Geothermal Reservoir Exploration And Assessment-Summary Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: 3-D Seismic Methods For Geothermal Reservoir Exploration And Assessment-Summary Details Activities (5) Areas (1) Regions (0) Abstract: A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally

373

A Natural Seismic Isolating System: The Buried Mangrove Effects  

E-Print Network (OSTI)

The Belleplaine test site, located in the island of Guadeloupe (French Lesser Antilles) includes a three-accelerometer vertical array, designed for liquefac- tion studies. The seismic response of the soil column at the test site is computed using three methods: the spectral ratio method using the vertical array data, a numerical method using the geotechnical properties of the soil column, and an operative fre- quency domain decomposition (FDD) modal analysis method. The Belleplaine test site is characterized by a mangrove layer overlaid by a stiff sandy deposit. This con- figuration is widely found at the border coast of the Caribbean region, which is exposed to high seismic hazard. We show that the buried mangrove layer plays the role of an isolation system equivalent to those usually employed in earthquake engineering aimed at reducing the seismic shear forces by reducing the internal stress within the structure. In our case, the flexibility of the mangrove layer reduces the distortion and the stress in the...

Gueguen, Philippe; Foray, Pierre; Rousseau, Christophe; Maury, Julie; 10.1785/0120100129

2011-01-01T23:59:59.000Z

374

Effects of core barrel on vessel seismic loadings. [LMFBR  

Science Conference Proceedings (OSTI)

Reliability of reactor systems under seismic events is a major concern for the safety of the nuclear power plants. This paper deals with the effects of the core barrel on the seismic response of reactor tanks. The main emphases are the effects of core barrel on the free-surface wave height and the fluid coupling effects between the core barrel and primary tank. This study represents an initial step to investigate the effects of in-tank components, structures on the seismically-induced hydrodynamic behavior of the reactor tanks. To simplify the analysis, the tank used in the study is simulated by a two-dimensional model. Two parametric studies were carried out in which the wall flexibility and location of core barrel were used as parameters respectively.

Ma, D.C.; Gvildys, J.; Chang, Y.W.

1983-01-01T23:59:59.000Z

375

Program on Technology Innovation: Effect of Seismic Wave Incoherence on Foundation and Building Response  

Science Conference Proceedings (OSTI)

Task S2.1 of the New Plant Seismic Issues Resolution Programa joint effort of EPRI and the Department of Energy (DOE)entails a research program into the effect of seismic wave incoherence on foundation and building response. The tasks objective is to systematically study seismic wave incoherence effects on structures/foundations similar to those being considered for advanced reactor designs. Seismic wave incoherence occurs because of horizontal spatial variation of both horizontal and vertical ground mot...

2006-11-15T23:59:59.000Z

376

Project Plan: Central and Eastern United States Seismic Source Characterization for Nuclear Facilities  

Science Conference Proceedings (OSTI)

This project plan outlines the Central and Eastern United States Seismic Source Characterization for Nuclear Facilities (CEUS SSC) Project, which will replace the Seismic Hazard Methodology for the Central and Eastern United States, EPRI report NP-4726, July 1986. The objective of the CEUS SSC project is to develop an up-to-date assessment of probabilistic seismic hazard analysis (PSHA) SSC for CEUS. Input to a PSHA consists of both seismic source and ground motion characterization. These two components ...

2008-06-16T23:59:59.000Z

377

Central and Eastern United States Seismic Source Characterization for Nuclear Facilities  

Science Conference Proceedings (OSTI)

This report describes a new seismic source characterization (SSC) model for the Central and Eastern United States (CEUS). It will replace the Seismic Hazard Methodology for the Central and Eastern United States, EPRI Report NP-4726 (July 1986) and the Seismic Hazard Characterization of 69 Nuclear Plant Sites East of the Rocky Mountains, Lawrence Livermore National Laboratory Model, (Bernreuter et al., 1989). The objective of the CEUS SSC Project is to develop a new seismic source model for the CEUS using...

2012-01-31T23:59:59.000Z

378

Compound and Elemental Analysis At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Nevada Nevada Seismic Zone Region (Coolbaugh, Et Al., 2010) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Compound and Elemental Analysis Activity Date Usefulness useful DOE-funding Unknown Notes "This second paper provides more detailed documentation on water and rock geochemistries and describes diagnostic major and trace element ratios and concentrations that can be used to distinguish tufa columns formed from thermal waters from those that formed from non-thermal waters." "In addition to providing a potentially diagnostic lithogeochemical tool for geothermal exploration, the analysis of lithium and other elements in tufa deposits could serve as exploration guides for hot spring lithium

379

Mine seismicity and the Comprehensive Nuclear Test Ban Treaty  

SciTech Connect

Surface and underground mining operations generate seismic ground motions which are created by chemical explosions and ground failures. It may come as a surprise to some that the ground failures (coal bumps, first caves, pillar collapses, rockbursts, etc.) can send signals whose magnitudes are as strong or stronger than those from any mining blast. A verification system that includes seismic, infrasound, hydroacoustic and radionuclide sensors is being completed as part of the CTBT. The largest mine blasts and ground failures will be detected by this system and must be identified as distinct from signals generated by small nuclear explosions. Seismologists will analyze the seismic records and presumably should be able to separate them into earthquake-like and non earthquake-like categories, using a variety of so-called seismic discriminants. Non-earthquake essentially means explosion- or implosion-like. Such signals can be generated not only by mine blasts but also by a variety of ground failures. Because it is known that single-fired chemical explosions and nuclear explosion signals of the same yield give very similar seismic records, the non-earthquake signals will be of concern to the Treaty verification community. The magnitude of the mine-related events is in the range of seismicity created by smaller nuclear explosions or decoupled tests, which are of particular concern under the Treaty. It is conceivable that legitimate mining blasts or some mine-induced ground failures could occasionally be questioned. Information such as shot time, location and design parameters may be all that is necessary to resolve the event identity. In rare instances where the legitimate origin of the event could not be resolved by a consultation and clarification procedure, it might trigger on On-Site Inspection (OSI). Because there is uncertainty in the precise location of seismic event as determined by the International Monitoring System (IMS), the OSI can cover an area of up to 1,000 squared kilometers. In active mining districts this area could include several different mining operations. So, an OSI could be disruptive both to the mining community and to the US Government which must host the foreign inspection team. Accordingly, it is in the best interest of all US parties to try and eliminate the possible occurrence of false alarms. This can be achieved primarily by reducing the ambiguity of mine-induced seismic signals, so that even if these remain visible to the IMS they are clearly consistent with recognizable mining patterns.

Chiappetta, F. [Blasting Analysis International, Allentown, PA (United States); Heuze, F.; Walter, W. [Lawrence Livermore National Lab., CA (United States); Hopler, R. [Powderman Consulting Inc., Oxford, MD (United States); Hsu, V. [Air Force Technical Applications Center, Patrick AFB, FL (United States); Martin, B. [Thunder Basin Coal Co., Wright, WY (United States); Pearson, C. [Los Alamos National Lab., NM (United States); Stump, B. [Southern Methodist Univ., Dallas, TX (United States); Zipf, K. [Univ. of New South Wales (Australia)

1998-12-09T23:59:59.000Z

380

Third Quarter Hanford Seismic Report for Fiscal Year 2010  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the HSAP works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. The Hanford Seismic Network recorded 23 local earthquakes during the third quarter of FY 2010. Sixteen earthquakes were located at shallow depths (less than 4 km), five earthquakes at intermediate depths (between 4 and 9 km), most likely in the pre-basalt sediments, and two earthquakes were located at depths greater than 9 km, within the basement. Geographically, twelve earthquakes were located in known swarm areas, 3 earthquakes occurred near a geologic structure (Saddle Mountain anticline), and eight earthquakes were classified as random events. The highest magnitude event (3.0 Mc) was recorded on May 8, 2010 at depth 3.0 km with epicenter located near the Saddle Mountain anticline. Later in the quarter (May 24 and June 28) two additional earthquakes were also recorded nearly at the same location. These events are not considered unusual in that earthquakes have been previously recorded at this location, for example, in October 2006 (Rohay et al; 2007). Six earthquakes were detected in the vicinity of Wooded Island, located about eight miles north of Richland just west of the Columbia River. The Wooded Island events recorded this quarter were a continuation of the swarm events observed during the 2009 and 2010 fiscal years and reported in previous quarterly and annual reports (Rohay et al; 2009a, 2009b, 2009c, 2010a, and 2010b). All events were considered minor (coda-length magnitude [Mc] less than 1.0) with a maximum depth estimated at 1.7 km. Based upon this quarters activity it is likely that the Wooded Island swarm has subsided. Pacific Northwest National Laboratory (PNNL) will continue to monitor for activity at this location.

Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E.; Devary, Joseph L.

2010-09-29T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

SEISMIC AND ROCK PHYSICS DIAGNOSTICS OF MULTISCALE RESERVOIR TEXTURES  

SciTech Connect

As part of our study on ''Relationships between seismic properties and rock microstructure'', we have studied (1) How to quantify elastic properties of clay minerals using Atomic Force Acoustic Microscopy. We show how bulk modulus of clay can be measured using atomic force acoustic microscopy (AFAM) (2) We have successfully measured elastic properties of unconsolidated sediments in an effort to quantify attributes for detection of overpressures from seismic (3) We have initiated efforts for velocity upscaling to quantify long-wavelength and short-wavelength velocity behavior and the scale-dependent dispersion caused by sediment variability in different depositional environments.

Gary Mavko

2002-05-01T23:59:59.000Z

382

Aerosol penetration through a seismically loaded shear wall  

SciTech Connect

An experimental study was performed to measure the aerosol penetration through a reinforced concrete shear wall after simulated seismic damage. Static load-cycle testing, to stress levels sufficient to induce visible shear cracking, was used to simulate the earthquake loading. Air permeability tests were performed both before and after the simulated seismic loading damaged the structure. Aerosol penetration measurements were conducted on the cracked shear wall structure using 0.10 {mu}m monodisperse particles. The measured aerosol number penetration through the cracked shear wall was 0.5%. 7 refs.

Farrar, C.R.; Girrens, S.P.

1992-01-01T23:59:59.000Z

383

Aerosol penetration through a seismically loaded shear wall  

SciTech Connect

An experimental study was performed to measure the aerosol penetration through a reinforced concrete shear wall after simulated seismic damage. Static load-cycle testing, to stress levels sufficient to induce visible shear cracking, was used to simulate the earthquake loading. Air permeability tests were performed both before and after the simulated seismic loading damaged the structure. Aerosol penetration measurements were conducted on the cracked shear wall structure using 0.10 {mu}m monodisperse particles. The measured aerosol number penetration through the cracked shear wall was 0.5%. 7 refs.

Farrar, C.R.; Girrens, S.P.

1992-05-01T23:59:59.000Z

384

Deep Downhole Seismic Testing for Earthquake Engineering Studies  

Science Conference Proceedings (OSTI)

Downhole seismic testing is one field test that is commonly used to determine compression-wave (P) and shear-wave (S) velocity profiles in geotechnical earthquake engineering investigations. These profiles are required input in evaluations of the responses to earthquake shaking of geotechnical sites and structures at these sites. In the past, traditional downhole testing has generally involved profiling in the 30- to 150-m depth range. As the number of field seismic investigations at locations with critical facilities has increased, profiling depths have also increased. An improved downhole test that can be used for wave velocity profiling to depths of 300 to 600 m or more is presented.

Stokoe, Kenneth H.; Li, Song Cheng; Cox, Brady R.; Menq, Farn-Yuh; Rohay, Alan C.

2008-10-17T23:59:59.000Z

385

High-resolution seismic studies applied to injected geothermal fluids  

DOE Green Energy (OSTI)

The application of high-resolution microseismicity studies to the problem of monitoring injected fluids is one component of the Geothermal Injection Monitoring Project at LLNL. The evaluation of microseismicity includes the development of field techniques, and the acquisition and processing of events during the initial development of a geothermal field. To achieve a specific detection threshold and location precision, design criteria are presented for seismic networks. An analysis of a small swarm near Mammoth Lakes, California, demonstrates these relationships and the usefulness of high-resolution seismic studies. A small network is currently monitoring the Mammoth-Pacific geothermal power plant at Casa Diablo as it begins production.

Smith, A.T.; Kasameyer, P.

1985-01-01T23:59:59.000Z

386

Seismic signal location program for the Los Alamos Scientific Laboratory's dry hot rock geothermal project  

DOE Green Energy (OSTI)

During hydraulic fracturing, seismic signals produced as the fracture grows may be used to determine orientation, size, and shape of the fracture. This seismic signal location program has been written to utilize such signals, along with an experimentally determined seismic velocity model to help determine the fracture orientation, size, and shape.

Kintzinger, P.R.

1976-03-01T23:59:59.000Z

387

Delivery Massager: A tool for propagating seismic inversion information into reservoir models  

Science Conference Proceedings (OSTI)

We introduce a new open-source program for transforming inversion data from the open-source Delivery seismic inversion software to industry-standard cornerpoint grid formats suitable for reservoir modelling and flow simulations. The seismic inversion ... Keywords: Bayesian, Cornerpoint grid, Downscaling, Geostatistics, Inversion, Open-source, Seismic, Shared earth model, Stochastic

James Gunning; Michael E. Glinsky; Chris White

2007-05-01T23:59:59.000Z

388

Analysis of seismic waves generated by surface blasting at Indiana coal mines  

E-Print Network (OSTI)

Analysis of seismic waves generated by surface blasting at Indiana coal mines A project pursuant is to investigate the characteristics of mine blast seismic waves in southern Indiana. Coal mines are prevalent blasting) and coal mines (surface blasting) to gain new understanding of seismic wave propagation, ground

Polly, David

389

Guideline for the Seismic Technical Evaluation of Replacement Items for Nuclear Power Plants  

Science Conference Proceedings (OSTI)

This guideline provides practical, cost-effective techniques for reasonably assuring that replacement items will meet seismic performance requirements. Meeting such requirements is necessary to maintain the seismic design basis of commercial nuclear power plants. The guideline also offers a method for determining when a seismic technical evaluation of replacement items is required as part of the procurement process for spare and replacement items.

1993-06-01T23:59:59.000Z

390

Non-extensive statistical analysis of seismicity in the area of Javakheti, Georgia  

Science Conference Proceedings (OSTI)

The distribution of earthquake magnitudes in the Javakheti highlands was analyzed using a non-extensive statistical approach. The earthquakes occurring from 1960 to 2008 in this seismically active area of Southern Caucasus were investigated. The seismic ... Keywords: Dynamics, Energy density characteristic, Modified frequency-magnitude relationship, Non-extensivity parameter, Seismicity, Time series

T. Matcharashvili; T. Chelidze; Z. Javakhishvili; N. Jorjiashvili; U. Fra Paleo

2011-10-01T23:59:59.000Z

391

Glue Film Thickness Measurements by Spectral Reflectance  

SciTech Connect

Spectral reflectance was used to determine the thickness of thin glue layers in a study of the effect of the glue on radiance and reflectance measurements of shocked-tin substrates attached to lithium fluoride windows. Measurements based on profilometry of the components were found to be inaccurate due to flatness variations and deformation of the tin substrate under pressure during the gluing process. The accuracy of the spectral reflectance measurements were estimated to be 0.5 ?m, which was sufficient to demonstrate a convincing correlation between glue thickness and shock-generated light.

B. R. Marshall

2010-09-20T23:59:59.000Z

392

Seismic stratigraphy and salt tectonics of the Alaminos Canyon area, Gulf of Mexico.  

E-Print Network (OSTI)

The Alaminos Canyon region is located at the change in the bathymetric trend between the slope and rise. Over 6,435 km of migrated seismic reflection profiles were analyzed to produce two structure and two isopach maps. Maps of the seafloor morphology, salt structure, and suprasalt sediments indicate the majority of the slope is covered by a shallow salt canopy. The salt structure map indicates that the Alaminos Canyon study area represents a transition from a semi-continuous salt sheet in the east to a less continuous salt sheet in the western margin. Salt lobe canopies are located within the eastern and western margins of the study area, while the central region represents a transition zone between the two lobate canopies. The sediment isochron maps show that the salt has played an important role in the sediment deposition and the formation of intraslope basins. The salt sheet interacted with slope sediment deposition by acting as a barrier to downslope sediment transport and by influencing the direction of mass transport. The uplift of the salt has formed topographic lows in which sediment is transported from the shelf beyond the slope. Within the study area, intraslope basins consist of remnants of submarine canyons blocked by diapiric uplift and closed depressions formed by subsidence in response to salt withdrawal. These intraslope basins have trapped thick deposits of sediment, thereby reducing the sediment transport beyond the slope region. Pleistocene sealevel fluctuations appear to be the dominant force in the depostional record. As the lowering of relative sealevel ended, the transport of sandy material decreased and hemipelagic sedimentation increased. Eustatic sealevel fluctuations during the Pleistocene led to cyclic seismic depostional sequences throughout the study area.

Mechler, Suzanne Marie

1994-01-01T23:59:59.000Z

393

Proof Synthesis and Reflection for Linear Arithmetic  

Science Conference Proceedings (OSTI)

This article presents detailed implementations of quantifier elimination for both integer and real linear arithmetic for theorem provers. The underlying algorithms are those by Cooper (for Z) and by Ferrante and Rackoff ... Keywords: Linear arithmetic, Proof synthesis, Reflection

Amine Chaieb; Tobias Nipkow

2008-07-01T23:59:59.000Z

394

Diffuse reflectance imaging with astronomical applications  

E-Print Network (OSTI)

Diffuse objects generally tell us little about the surrounding lighting, since the radiance they reflect blurs together incident lighting from many directions. In this paper we discuss how occlusion geometry can help invert ...

Hasinoff, Samuel W.

395

Solar Reflection Panels - Energy Innovation Portal  

Patent 7,077,532: Solar reflection panels A solar collector comprising a glass mirror, and a composite panel, wherein the back of the mirror is affixed to a front ...

396

Property:Geothermal/TargetsMilestones | Open Energy Information  

Open Energy Info (EERE)

TargetsMilestones TargetsMilestones Jump to: navigation, search Property Name Geothermal/TargetsMilestones Property Type Text Description Targets / Milestones Pages using the property "Geothermal/TargetsMilestones" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + The basics of this technology were developed by the oil and gas industry to discern petrologic characteristics of hydrocarbon reservoirs, but the techniques have never been applied to definition and characterization of permeable zones associated with geothermal resources. There is a substantial amount of existing geophysical and wellbore data for the area, and these data will be complemented with modern, state-of-the-art reflection seismic data. Three-component geophones will record full-fold compressional p-wave, converted-wave, and shear-wave data over the 2.5 square miles of proven geothermal resource. The proposed 3D seismic survey involves the generation of ground vibration by "vibroseis" equipment along source points and the recording of reflected sound waves and patterns arising from the different underground geologic strata along receiver lines. The proposed source points are arranged into source lines that run northeast to southwest and are oriented perpendicular to the receiver lines, which run northwest to southeast within the boundary of the project area. The data will be processed first in a conventional way to identify anomalous zones, to which specialized attribute processing will be applied. The results of the processing will be made accessible in a GIS format to facilitate visualization of interrelationships among the data and to build conceptual geologic and/or geothermal reservoir models and define drilling targets.

397

Recording experiment on Rainier Mesa in conjunction with a reflection survey  

SciTech Connect

The chemical explosion of the NPE was recorded on the surface of Rainier Mesa along the same line which had previously been the site of a high resolution reflection survey. Six three-component accelerometer stations where distributed along the 550 meter line, which was offset about 600 meters from the epicenter of the explosion. The bandwidth of the acceleration data extends to 100 Hz. Even though the separations of the stations was only about 100 meters, the waveforms and the amplitudes exhibited considerable variability, especially for the transverse component of motion. The maximum accelerations ranged between 0.27 g and 1.46 g, with the maximums of the average traces being 0.57 g on the radial component, 0.28 on the transverse component, and 0.50 g on the vertical component. Using the results of the reflection survey to help constrain the velocity model, the acceleration data were inverted to obtain a preliminary estimate of the seismic moment tensor of the NPE. This result is a strong diagnostic for the NPE being an explosion, showing a somewhat asymmetric extensional source with very small shear components. When interpreted in terms of a spectral model and scaling relationships, the isotropic moment tensor indicates a yield of 1.4 kt, an elastic radius of 116 meters and a cavity radius of 15.5 meters. This interpretation includes a source time function which contains appreciable overshoot, and, if shown to be reliable, this feature of the explosion could have a significant effect upon the analyses of other types of seismic data.

Johnson, L.R.

1994-06-01T23:59:59.000Z

398

Lamp method and apparatus using multiple reflections  

DOE Patents (OSTI)

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible is disclosed. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture. 20 figs.

MacLennan, D.A.; Turner, B.; Kipling, K.

1999-05-11T23:59:59.000Z

399

Lamp method and apparatus using multiple reflections  

DOE Patents (OSTI)

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture.

MacLennan, Donald A. (Butler, PA); Turner, Brian (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

1999-01-01T23:59:59.000Z

400

Reflective masks for extreme ultraviolet lithography  

SciTech Connect

Extreme ultraviolet lithographic masks are made by patterning multilayer reflective coatings with high normal incidence reflectivity. Masks can be patterned by depositing a patterned absorber layer above the coating or by etching the pattern directly into the coating itself. Electromagnetic simulations showed that absorber-overlayer masks have superior imaging characteristics over etched masks (less sensitive to incident angles and pattern profiles). In an EUVL absorber overlayer mask, defects can occur in the mask substrate, reflective coating, and absorber pattern. Electromagnetic simulations showed that substrate defects cause the most severe image degradation. A printability study of substrate defects for absorber overlayer masks showed that printability of 25 nm high substrate defects are comparable to defects in optical lithography. Simulations also indicated that the manner in which the defects are covered by multilayer reflective coatings can affect printability. Coverage profiles that result in large lateral spreading of defect geometries amplify the printability of the defects by increasing their effective sizes. Coverage profiles of Mo/Si coatings deposited above defects were studied by atomic force microscopy and TEM. Results showed that lateral spread of defect geometry is proportional to height. Undercut at defect also increases the lateral spread. Reductions in defect heights were observed for 0.15 {mu}m wide defect lines. A long-term study of Mo/Si coating reflectivity revealed that Mo/Si coatings with Mo as the top layer suffer significant reductions in reflectivity over time due to oxidation.

Nguyen, Khanh Bao

1994-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Characterization and origins of high-amplitude reflection packets, HARPs, along the Gulf of Mexico depositional profile  

E-Print Network (OSTI)

High amplitude reflection packets (HARPs) refer to sheet-like sand deposits, showing high-amplitude seismic-reflection character, which are thought to be associated with constructional channel systems. Based on observations of Quaternary deposits from the Amazon Fan, HARPs are interpreted to be related to channel avulsion events. The depositional model from the Amazon Fan suggests when levees fail, sediment gravity flows move through the break into interchannel lows, where lack of confinement results in sheet like sand deposits. Based on 2D and 3D seismic data, HARPs from the Gulf of Mexico not only form from updip channel avulsions, but from additional geological processes. In salt withdrawal minibasins, sediment gravity flows encounter an underfilled depocenter, where lack of confinement results in sheet like deposits. After initial spill into an outboard basin and the development of a graded slope equilibrium profile, slope channel complexes develop as conduits for sediment transport. These depositional processes characterize the "fill and spill" model and can result in the creation of HARP-like deposits. At the toe-of-the Sigsbee Escarpment, turbidity currents flow through nickpoints at the seaward edge of the escarpment and become unconfined, resulting in HARP-like deposition on the abyssal floor. Seismically, these deposits are laterally continuous, have low relief, pinchout downdip, and have internal channelization. Erosive, low-relief, discontinuous channels and a low-relief, flat-bottomed trough cut into the TS-HARP deposits. On the outer fan, at the seaward limit of submarine channels, sediment gravity flows will also become unconfined and deposit HARPs. These HARPs typically consist of shingled sheet-like deposits that may form larger scale mounded features. These observations indicate that HARP-like deposits can form from a variety of depositional processes and in variable depositional settings along the Gulf of Mexico depositional profile.

Rains, David Brian

2001-01-01T23:59:59.000Z

402

Benchmark hydrogeophysical data from a physical seismic model  

Science Conference Proceedings (OSTI)

Theoretical fluid flow models are used regularly to predict and analyze porous media flow but require verification against natural systems. Seismic monitoring in a controlled laboratory setting at a nominal scale of 1:1000 in the acoustic frequency range ... Keywords: Gassmann, Hertz-Mindlin, Saturation, Sensors, Soil

Juan M. Lorenzo; David E. Smolkin; Christopher White; Shannon R. Chollett; Ting Sun

2013-01-01T23:59:59.000Z

403

Long term study of the seismic environment at LIGO  

E-Print Network (OSTI)

The LIGO experiment aims to detect and study gravitational waves using ground based laser interferometry. A critical factor to the performance of the interferometers, and a major consideration in the design of possible future upgrades, is isolation of the interferometer optics from seismic noise. We present the results of a detailed program of measurements of the seismic environment surrounding the LIGO interferometers. We describe the experimental configuration used to collect the data, which was acquired over a 613 day period. The measurements focused on the frequency range 0.1-10 Hz, in which the secondary microseismic peak and noise due to human activity in the vicinity of the detectors was found to be particularly critical to interferometer performance. We compare the statistical distribution of the data sets from the two interferometer sites, construct amplitude spectral densities of seismic noise amplitude fluctuations with periods of up to 3 months, and analyze the data for any long term trends in the amplitude of seismic noise in this critical frequency range.

E. J. Daw; J. A. Giaime; D. Lormand; M. Lubinski; J. Zweizig

2004-03-11T23:59:59.000Z

404

Knowledge Assisted Visualization Knowledge-assisted visualization of seismic data  

E-Print Network (OSTI)

exploration. We describe the existing procedure for oil and gas search which consists of manually extracting for knowledge-assisted annotation and computer-assisted interpretation of seismic data for oil and gas. Introduction Whether we like it or not the world is dependent on energy. Oil and gas accounts for around 64

405

Physics-based seismic hazard analysis on petascale heterogeneous supercomputers  

Science Conference Proceedings (OSTI)

We have developed a highly scalable and efficient GPU-based finite-difference code (AWP) for earthquake simulation that implements high throughput, memory locality, communication reduction and communication/computation overlap and achieves linear scalability ... Keywords: CyberShake, GPU, SCEC, earthquake ground motions, hybrid heterogeneous, seismic hazard analysis, weak scaling

Y. Cui, E. Poyraz, K. B. Olsen, J. Zhou, K. Withers, S. Callaghan, J. Larkin, C. Guest, D. Choi, A. Chourasia, Z. Shi, S. M. Day, P. J. Maechling, T. H. Jordan

2013-11-01T23:59:59.000Z

406

Seismic imaging for velocity and attenuation structure in geothermal fields  

DOE Green Energy (OSTI)

We have applied the attenuation inversion technique developed by Evans and Zucca (1988) to a seismic tomographic data set taken at Newberry Volcano by Achauer et al. (1988). Our preliminary results suggest that the interpretation of the velocity data by Achauer et al. that a magma chamber is present 3 km beneath the caldera is not confirmed by the attenuation data.

Zucca, J.J. (Lawrence Livermore National Lab., CA (USA)); Evans, J.R. (Geological Survey, Menlo Park, CA (USA))

1989-06-01T23:59:59.000Z

407

Neotectonics and seismicity of the Clearlake region in northern California  

DOE Green Energy (OSTI)

Geological, topographic, and seismic methods were used to locate faults in the vicinity of Clearlake in northern California. The geological method, which seeks faults as discontinuities in the lithotope, found faults in the Tertiary-Cretaceous rocks east of Burns Valley. The topographic method, which is used to produce Fault Evaluation Reports, found a very active fault zone, the Konocti Bay fault zone, south of Highlands arm. It also found some active faults north of Highlands arm, in the eastern part of Burns Valley and on the lakeshore near Oak Park. The seismic method is the most enduring of the three methods but is limited by location accuracy; the results improve as monitoring continues because of increases in the density of events and improvements in the crustal velocity model. The seismic method identified faulting along the valley at Borax Lake and possibly also on a line running northeast from the city of Clearlake. The latter may be associated with the Burns Valley fault or with the line of scoria domes which runs parallel to it. Seismic observations over longer periods at higher resolution will be required in order to determine the location of active faults near the city. 47 refs., 13 figs.

Burns, K.L.

1996-04-01T23:59:59.000Z

408

Evaluation of seismic capacity of glovebox windows using deformation tests  

SciTech Connect

With the increasing emphasis on worker safety, gloveboxes are being relied upon in Safety Analyses to be a confinement boundary. Many of the accident scenarios result in a requirement that these gloveboxes be seismically qualified. Since there is currently no validated experience data category for gloveboxes, the qualification has generally been done by analysis. The weak link in assuring confinement integrity by analysis is in characterizing the glass and glass-to-glovebox seal in the analytical models. engineering judgement as to whether the windows will survive a seismic event based on total calculated deflection at the window. Most often the windows are assumed to lose their confinement capability during an earthquake. A quantitative basis is needed in order to evaluate the seismic capacity of these windows. A series of deformation tests are being performed at the Savannah River Site on glovebox mock-ups. This paper presents the results of the first two of these tests, including displacement profiles and leak rate data. Methods for using this data for evaluating the windows for seismic loads are proposed.

Hargett, S.T.

1995-12-31T23:59:59.000Z

409

Seismic wave propagation in cracked porous media Tim Pointer,1,  

E-Print Network (OSTI)

, Pi plays an important role. There is much higher attenuation and dispersion for gas (which is more, as for PARTIAL ALIGN, there is no velocity dispersion; there is also increased P and SV attenuation as the gas in there is high attenuation and dispersion of seismic waves. Fluid £ow may be on either a wavelength scale

Edinburgh, University of

410

Structural evaluation of the 2736Z Building for seismic loads  

SciTech Connect

The 2736Z building structure is evaluated for high-hazard loads. The 2736Z building is analyzed herein for normal and seismic loads and is found to successfully meet the guidelines of UCRL-15910 along with the related codes requirements.

Giller, R.A.

1994-09-23T23:59:59.000Z

411

3-D seismic acquisition gains momentum in transition zone  

Science Conference Proceedings (OSTI)

The hydrocarbon-rich Gulf of Mexico continues to be an active seismic data acquisition arena, with seismic crews working at a rapid-fire pace to acquire 3-D databases on a regional scale. Lately, however, many contractors are looking shoreward to what will be the next active site for data acquisition and exploratory drilling--the coastal transition zone, which extends roughly five miles either side of the coastline. Diverse terrain causes acquisition efforts to shift frequently between land, water and marsh. Each environment carries its own unique acquisition requirements, which means a wide variety of equipment must be constantly available. Need for multiple permits from multiple sources lends itself to a formidable permitting maze, and environmental problems are prevailing in this sensitive wetlands area. With this in mind, Fairfield and Seismic Exchange, Inc., have teamed in a joint venture to produce the world`s largest non-exclusive 3-D seismic transition zone program. The project will build on Fairfield`s massive shallow water effort, which is nearly complete.

Lawrence, M.A. [Fairfield Industries Inc., Houston, TX (United States)

1996-05-01T23:59:59.000Z

412

EVALUATION OF MODAL COMBINATION METHODS FOR SEISMIC RESPONSE SPECTRUM ANALYSIS.  

Science Conference Proceedings (OSTI)

Regulatory Guide 1.92 ''Combining Modal Responses and Spatial Components in Seismic Response Analysis'' was last revised in 1976. The objective of this project was to re-evaluate the current regulatory guidance for combining modal responses in response spectrum analysis, evaluate recent technical developments, and recommend revisions to the regulatory guidance. This paper describes the qualitative evaluation of modal response combination methods.

MORANTE,R.

1999-08-15T23:59:59.000Z

413

Intelligent seismic inversion workflow for high-resolution reservoir characterization  

Science Conference Proceedings (OSTI)

Developing a geological model is the first and a very important step during the reservoir simulation and modeling process. The geological model usually represents our best interpretation of the reservoir characteristics that extends beyond the well where ... Keywords: Buffalo Valley Field, Neural networks, Reservoir characterization, Seismic inversion

E. Artun; S. Mohaghegh

2011-02-01T23:59:59.000Z

414

Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Final Report  

Science Conference Proceedings (OSTI)

The objective of our research was to develop and demonstrate seismic data-acquisition and data-processing technologies that allow geothermal prospects below high-velocity rock outcrops to be evaluated. To do this, we acquired a 3-component seismic test line across an area of exposed high-velocity rocks in Brewster County, Texas, where there is high heat flow and surface conditions mimic those found at numerous geothermal prospects. Seismic contractors have not succeeded in creating good-quality seismic data in this area for companies who have acquired data for oil and gas exploitation purposes. Our test profile traversed an area where high-velocity rocks and low-velocity sediment were exposed on the surface in alternating patterns that repeated along the test line. We verified that these surface conditions cause non-ending reverberations of Love waves, Rayleigh waves, and shallow critical refractions to travel across the earth surface between the boundaries of the fast-velocity and slow-velocity material exposed on the surface. These reverberating surface waves form the high level of noise in this area that does not allow reflections from deep interfaces to be seen and utilized. Our data-acquisition method of deploying a box array of closely spaced geophones allowed us to recognize and evaluate these surface-wave noise modes regardless of the azimuth direction to the surface anomaly that backscattered the waves and caused them to return to the test-line profile. With this knowledge of the surface-wave noise, we were able to process these test-line data to create P-P and SH-SH images that were superior to those produced by a skilled seismic data-processing contractor. Compared to the P-P data acquired along the test line, the SH-SH data provided a better detection of faults and could be used to trace these faults upward to the boundaries of exposed surface rocks. We expanded our comparison of the relative value of S-wave and P-wave seismic data for geothermal applications by inserting into this report a small part of the interpretation we have done with 3C3D data across Wister geothermal field in the Imperial Valley of California. This interpretation shows that P-SV data reveal faults (and by inference, also fractures) that cannot be easily, or confidently, seen with P-P data, and that the combination of P-P and P-SV data allows VP/VS velocity ratios to be estimated across a targeted reservoir interval to show where an interval has more sandstone (the preferred reservoir facies). The conclusion reached from this investigation is that S-wave seismic technology can be invaluable to geothermal operators. Thus we developed a strong interest in understanding the direct-S modes produced by vertical-force sources, particularly vertical vibrators, because if it can be demonstrated that direct-S modes produced by vertical-force sources can be used as effectively as the direct-S modes produced by horizontal-force sources, geothermal operators can acquire direct-S data across many more prospect areas than can be done with horizontal-force sources, which presently are limited to horizontal vibrators. We include some of our preliminary work in evaluating direct-S modes produced by vertical-force sources.

Hardage, Bob A; DeAngelo, Michael V; Ermolaeva, Elena; Hardage, Bob A; Remington, Randy; Sava, Diana; Wagner, Donald; Wei, Shuijion

2013-02-28T23:59:59.000Z

415

Definition: Single-Well And Cross-Well Seismic Imaging | Open Energy  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Single-Well And Cross-Well Seismic Imaging (Redirected from Definition:Single-Well And Cross-Well Seismic) Jump to: navigation, search Dictionary.png Single-Well And Cross-Well Seismic Imaging Single well seismic imaging (SWSI) is the application of borehole seismic sources and receivers on the same string within a single borehole in order to acquire CMP type shot gathers. Cross well seismic places sources and receivers in adjacent wells in order to image the interwell volume.[1] Also Known As SWSI References ↑ http://library.seg.org/ Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Single-Well_And_Cross-Well_Seismic_Imaging&oldid=690246"

416

Seismic margin review of the Maine Yankee Atomic Power Station: Summary report  

SciTech Connect

This Summary Report is the first of three volumes for the Seismic Margin Review of the Maine Yankee Atomic Power Station. Volume 2 is the Systems Analysis of the first trial seismic margin review. Volume 3 documents the results of the fragility screening for the review. The three volumes demonstrate how the seismic margin review guidance (NUREG/CR-4482) of the Nuclear Regulatory Commission (NRC) Seismic Design Margins Program can be applied. The overall objectives of the trial review are to assess the seismic margins of a particular pressurized water reactor, and to test the adequacy of this review approach, quantification techniques, and guidelines for performing the review. Results from the trial review will be used to revise the seismic margin methodology and guidelines so that the NRC and industry can readily apply them to assess the inherent quantitative seismic capacity of nuclear power plants.

Prassinos, P.G.; Murray, R.C.; Cummings, G.E.

1987-03-01T23:59:59.000Z

417

Seismic margin review of the Maine Yankee Atomic Power Station: Fragility analysis  

SciTech Connect

This Fragility Analysis is the third of three volumes for the Seismic Margin Review of the Maine Yankee Atomic Power Station. Volume 1 is the Summary Report of the first trial seismic margin review. Volume 2, Systems Analysis, documents the results of the systems screening for the review. The three volumes are part of the Seismic Margins Program initiated in 1984 by the Nuclear Regulatory Commission (NRC) to quantify seismic margins at nuclear power plants. The overall objectives of the trial review are to assess the seismic margins of a particular pressurized water reactor, and to test the adequacy of this review approach, quantification techniques, and guidelines for performing the review. Results from the trial review will be used to revise the seismic margin methodology and guidelines so that the NRC and industry can readily apply them to assess the inherent quantitative seismic capacity of nuclear power plants.

Ravindra, M. K.; Hardy, G. S.; Hashimoto, P. S.; Griffin, M. J.

1987-03-01T23:59:59.000Z

418

Simulation of anisotropic wave propagation in Vertical Seismic Profiles  

E-Print Network (OSTI)

The influence of elastic anisotropy on seismic wave propagation is often neglected for the sake of simplicity. However, ignoring anisotropy may lead to significant errors in the processing of seismic data and ultimately in a poor image of the subsurface. This is especially true in wide-aperture Vertical Seismic Profiles where waves travel both vertically and horizontally. Anisotropy has been neglected in wavefront construction methods of seismic ray-tracing until Gibson (2000), who showed they are powerful tools to simulate seismic wave propagation in three-dimensional anisotropic subsurface models. The code is currently under development using a C++ object oriented programming approach because it provides high flexibility in the design of new components and facilitates debugging and maintenance of a complex algorithm. So far, the code was used to simulate propagation in homogeneous or simple heterogeneous anisotropic velocity models mainly designed for testing purposes. In particular, it has never been applied to simulate a field dataset. We propose here an analytical method involving little algebra and that allows the design of realistic heterogeneous anisotropic models using the C++ object oriented programming approach. The new model class can model smooth multi-layered subsurface with gradients or models with many dip variations. It has been used to model first arrival times of a wide-aperture VSP dataset from the Gulf of Mexico to estimate the amount of anisotropy. The proposed velocity model is transversely isotropic. The anisotropy is constant throughout the model and is defined via Thomsen's parameters. Values in the final model are epsilon = 0.055 and delta = -0.115. The model is compatible with the a priori knowledge of the local geology and reduces the RMS average time difference between measured and computed travel times by 51% in comparison to the initial isotropic model. These values are realistic and are similar to other measurements of anisotropy in the Gulf of Mexico.

Durussel, Vincent Bernard

2002-08-01T23:59:59.000Z

419

Field site investigation: Effect of mine seismicity on groundwater hydrology  

Science Conference Proceedings (OSTI)

The results of a field investigation on the groundwater-hydrologic effect of mining-induced earthquakes are presented in this report. The investigation was conducted at the Lucky Friday Mine, a silver-lead-zinc mine in the Coeur d`Alene Mining District of Idaho. The groundwater pressure in sections of three fracture zones beneath the water table was monitored over a 24-mo period. The fracture zones were accessed through a 360-m-long inclined borehole, drilled from the 5,700 level station of the mine. The magnitude, source location, and associated ground motions of mining-induced seismic events were also monitored during the same period, using an existing seismic instrumentation network for the mine, augmented with additional instruments installed specifically for the project by the center for Nuclear Waste Regulatory Analyses (CNWRA). More than 50 seismic events of Richter magnitude 1.0 or larger occurred during the monitoring period. Several of these events caused the groundwater pressure to increase, whereas a few caused it to decrease. Generally, the groundwater pressure increased as the magnitude of seismic event increased; for an event of a given magnitude, the groundwater pressure increased by a smaller amount as the distance of the observation point from the source of the event increased. The data was examined using regression analysis. Based on these results, it is suggested that the effect of earthquakes on groundwater flow may be better understood through mechanistic modeling. The mechanical processes and material behavior that would need to be incorporated in such a model are examined. They include a description of the effect of stress change on the permeability and water storage capacity of a fracture rock mass; transient fluid flow; and the generation and transmission of seismic waves through the rock mass.

Ofoegbu, G.I.; Hsiung, S.; Chowdhury, A.H. [Southwest Research Inst., San Antonio, TX (United States). Center for Nuclear Waste Regulatory Analyses; Philip, J. [Nuclear Regulatory Commission, Washington, DC (United States)

1995-04-01T23:59:59.000Z

420

Development of a Stochastic Inversion Tool To Optimize Agreement Between The Observed And Predicted Seismic Response To CO2 Injection/Migration in the Weyburn-Midale Project  

Science Conference Proceedings (OSTI)

During Phase 1 of the Weyburn Project (2000-2004), 4D reflection seismic data were used to map CO{sub 2} migration within the Midale reservoir, while an extensive fluid sampling program documented the geochemical evolution triggered by CO{sub 2}-brine-oil-mineral interactions. The aim of this task (3b.11) is to exploit these existing seismic and geochemical data sets, augmented by CO{sub 2}/H{sub 2}O injection and HC/H{sub 2}O production data toward optimizing the reservoir model and thereby improving site characterization and dependent predictions of long-term CO{sub 2} storage in the Weyburn-Midale reservoir. Our initial project activities have concentrated on developing a stochastic inversion method that will identify reservoir models that optimize agreement between the observed and predicted seismic response. This report describes the technical approach we have followed, the data that supports it, and associated implementation activities. The report fulfills deliverable D1 in the project's statement of work. Future deliverables will describe the development of the stochastic inversion tool that uses geochemical data to optimize the reservoir model.

Ramirez, A L; Hao, Y; White, D; Carle, S; Dyer, K; Yang, X; Mcnab, W; Foxall, W; Johnson, J

2009-12-02T23:59:59.000Z

Note: This page contains sample records for the topic "3d-3c reflection seismic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Soil Moisture Monitorization Using GNSS Reflected Signals  

E-Print Network (OSTI)

The use of GNSS signals as a source of opportunity for remote sensing applications, GNSS-R, has been a research area of interest for more than a decade. One of the possible applications of this technique is soil moisture monitoring. The retrieval of soil moisture with GNSS-R systems is based on the variability of the ground dielectric properties associated to soil moisture. Higher concentrations of water in the soil yield a higher dielectric constant and reflectivity, which incurs in signals that reflect from the Earth surface with higher peak power. Previous investigations have demonstrated the capability of GPS bistatic scatterometers to obtain high enough signal to noise ratios in order to sense small changes in surface reflectivity. Furthermore, these systems present some advantages with respect to others currently used to retrieve soil moisture. Upcoming satellite navigation systems, such as the European Galileo, will represent an excellent source of opportunity for soil moisture remote sensing for vario...

Egido, Alejandro; Caparrini, Marco; Martin, Cristina; Farres, Esteve; Banque, Xavier

2008-01-01T23:59:59.000Z

422

Pigments which reflect infrared radiation from fire  

DOE Patents (OSTI)

Conventional paints transmit or absorb most of the intense infrared (IR) radiation emitted by fire, causing them to contribute to the spread of fire. The present invention comprises a fire retardant paint additive that reflects the thermal IR radiation emitted by fire in the 1 to 20 micrometer ({micro}m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 {micro}m or, for cool smoky fires, about 2 {micro}m to about 16 {micro}m. The improved inventive coatings reflect adverse electromagnetic energy and slow the spread of fire. Specific IR reflective pigments include titanium dioxide (rutile) and red iron oxide pigments with diameters of about 1 {micro}m to about 2 {micro}m and thin leafing aluminum flake pigments. 4 figs.

Berdahl, P.H.

1998-09-22T23:59:59.000Z

423

Annual Hanford Seismic Report for Fiscal Year 2010  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the HSAP works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. During FY 2010, the Hanford Seismic Network recorded 873 triggers on the seismometer system, which included 259 seismic events in the southeast Washington area and an additional 324 regional and teleseismic events. There were 210 events determined to be local earthquakes relevant to the Hanford Site. One hundred and fifty-five earthquakes were detected in the vicinity of Wooded Island, located about eight miles north of Richland just west of the Columbia River. The Wooded Island events recorded this fiscal year were a continuation of the swarm events observed during fiscal year 2009 and reported in previous quarterly and annual reports (Rohay et al. 2009a, 2009b, 2009c, 2010a, 2010b, and 2010c). Most events were considered minor (coda-length magnitude [Mc] less than 1.0) with the largest event recorded on February 4, 2010 (3.0Mc). The estimated depths of the Wooded Island events are shallow (averaging approximately 1.5 km deep) placing the swarm within the Columbia River Basalt Group. Based upon the last two quarters (Q3 and Q4) data, activity at the Wooded Island area swarm has largely subsided. Pacific Northwest National Laboratory will continue to monitor for activity at this location. The highest-magnitude events (3.0Mc) were recorded on February 4, 2010 within the Wooded Island swarm (depth 2.4 km) and May 8, 2010 on or near the Saddle Mountain anticline (depth 3.0 km). This latter event is not considered unusual in that earthquakes have been previously recorded at this location, for example, in October 2006 (Rohay et al. 2007). With regard to the depth distribution, 173 earthquakes were located at shallow depths (less than 4 km, most likely in the Columbia River basalts), 18 earthquakes were located at intermediate depths (between 4 and 9 km, most likely in the pre-basalt sediments), and 19 earthquakes were located at depths greater than 9 km, within the crystalline basement. Geographically, 178 earthquakes were located in known swarm areas, 4 earthquakes occurred on or near a geologic structure (Saddle Mountain anticline), and 28 earthquakes were classified as random events. The Hanford Strong Motion Accelerometer (SMA) network was triggered several times by the Wooded Island swarm events and the events located on or near the Saddle Mountain anticline. The maximum acceleration value recorded by the SMA network during fiscal year 2010 occurred February 4, 2010 (Wooded Island swarm event), approximately 2 times lower than the reportable action level for Hanford facilities (2% g) with no action required.

Rohay, Alan C.; Clayton, Ray E.; Sweeney, Mark D.; Devary, Joseph L.; Hartshorn, Donald C.

2010-12-27T23:59:59.000Z

424

Annual Hanford Seismic Report for Fiscal Year 2009  

SciTech Connect

The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural phenomena hazards assessments, and engineering design and construction. In addition, the HSAP works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. During FY 2009, the Hanford Seismic Network recorded nearly 3000 triggers on the seismometer system, which included over 1700 seismic events in the southeast Washington area and an additional 370 regional and teleseismic events. There were 1648 events determined to be local earthquakes relevant to the Hanford Site. Nearly all of these earthquakes were detected in the vicinity of Wooded Island, located about eight miles north of Richland just west of the Columbia River. Recording of the Wooded Island events began in January with over 250 events per month through June 2009. The frequency of events decreased starting in July 2009 to approximately 10-15 events per month through September 2009. Most of the events were considered minor (coda-length magnitude [Mc] less than 1.0) with 47 events in the 2.0-3.0 range. The estimated depths of the Wooded Island events are shallow (averaging less than 1.0 km deep) with a maximum depth estimated at 2.3 km. This places the Wooded Island events within the Columbia River Basalt Group (CRBG). The highest-magnitude event (3.0Mc) occurred on May 13, 2009 within the Wooded Island swarm at depth 1.8 km. With regard to the depth distribution, 1613 earthquakes were located at shallow depths (less than 4 km, most likely in the Columbia River basalts), 18 earthquakes were located at intermediate depths (between 4 and 9 km, most likely in the pre-basalt sediments), and 17 earthquakes were located at depths greater than 9 km, within the crystalline basement. Geographically, 1630 earthquakes were located in swarm areas and 18 earthquakes were classified as random events. The low magnitude of the Wooded Island events has made them undetectable to all but local area residents. However, some Hanford employees working within a few miles of the area of highest activity and individuals living in homes directly across the Columbia River from the swarm center have reported feeling many of the larger magnitude events. The Hanford Strong Motion Accelerometer (SMA) network was triggered numerous times by the Wooded Island swarm events. The maximum acceleration value recorded by the SMA network was approximately 3 times lower than the reportable action level for Hanford facilities (2% g) and no action was required. The swarming is likely due to pressure that has built up, cracking the brittle basalt layers within the Columbia River Basalt Formation (CRBG). Similar earthquake swarms have been recorded near this same location in 1970, 1975 and 1988. Prior to the 1970s, swarming may have occurred, but equipment was not in place to record those events. Quakes of this limited magnitude do not pose a risk to Hanford cleanup efforts or waste storage facilities. Since swarms of the past did not intensify in magnitude, seismologists do not expect that these events will increase in intensity. However, Pacific Northwest National Laboratory (PNNL) will continue to monitor the activity.

Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E.; Devary, Joseph L.

2009-12-31T23:59:59.000Z

425

Seismic design and evaluation guidelines for the Department of Energy high-level waste storage tanks and appurtenances  

Science Conference Proceedings (OSTI)

This document provides guidelines for the design and evaluation of underground high-level waste storage tanks due to seismic loads. Attempts were made to reflect the knowledge acquired in the last two decades in the areas of defining the ground motion and calculating hydrodynamic loads and dynamic soil pressures for underground tank structures. The application of the analysis approach is illustrated with an example. The guidelines are developed for specific design of underground storage tanks, namely double-shell structures. However, the methodology discussed is applicable for other types of tank structures as well. The application of these and of suitably adjusted versions of these concepts to other structural types will be addressed in a future version of this document.

Bandyopadhyay, K.; Cornell, A.; Costantino, C.; Kennedy, R.; Miller, C.; Veletsos, A.

1993-01-01T23:59:59.000Z

426

A Robust Estimator of Rainfall Rate Using Differential Reflectivity  

Science Conference Proceedings (OSTI)

Conventional estimator of rainfall rate using reflectivity factor and differential reflectivity ZDR becomes unstable when the measured values of ZDR are small due to measurement errors. An alternate estimator of rainfall rate using reflectivity ...

Eugenio Gorgucca; Gianfranco Scarchilli; V. Chandrasekar

1994-04-01T23:59:59.000Z

427

Prisms with total internal reflection as solar reflectors  

DOE Patents (OSTI)

An improved reflective wall for radiant energy collection and concentration devices is provided. The wall is comprised of a plurality of prisms whose frontal faces are adjacent and which reflect the desired radiation by total internal reflection.

Rabl, Arnulf (Downers Grove, IL); Rabl, Veronika (Downers Grove, IL)

1978-01-01T23:59:59.000Z

428

3-D structural and seismic stratigraphic interpretation of the Guasare-Misoa Interval, VLE 196 Area, Block V, Lamar Field, Lake Maracaibo, Venezuela  

E-Print Network (OSTI)

In this study, the structure, depositional system, and the seismic stratigraphy of the VLE 196 area, Block V in Lamar Field were interpreted using 3-D seismic data and well logs to characterize structural and depositional settings of the Guasare-Misoa interval. To demonstrate structural settings of the study area 3-D seismic data were interpreted. Three main seismic reflectors, which are the Late Eocene unconformity, Guasare, and La Luna formations, were picked. The most dominant structure in the area is the VLE 400 Fault which was interpreted as a left-lateral strike-slip reverse fault due to its behaviors as a reverse fault in cross sections and as a strike-slip fault in strike sections. The VLE 400 Fault subdivides the VLE 196 area into two main structural blocks, a downthrown block in the western part and the upthrown block in the eastern part of the field where the hydrocarbons were trapped. Several en echelon normal and reverse faults were located along the both sides of the area. The main importance of these faults are that they fractured the La Luna source rock and created migration pathways through the reservoir layers of the Misoa Formation. To interpret depositional system of the Guasare-Misoa interval, tops of the C4 and C5 intervals and associated C4 layers were picked based on well logs and lithofacies maps were prepared. The results of this part of the study show that the sandstones of the Misoa Formation are delta front and fluvial/distributary channel facies of delta system. The net sand thickness map of the C4 interval also exhibits southeast northwest contour patterns reflecting depositional axes in the area. Shaly units of the C4 interval interpreted as potential seals and are of variable thickness and extend. Seismic stratigraphic interpretation of the area shows that the four main seismic facies are dominant which mainly represent the recent sediments, "C" sands of the Misoa Formation, underlying Colon and Mito Juan shales, and basement respectively. Some distributary eroded channel fill structures were also observed within the Misoa Formation, but they were not continuous through the area because of the intensive faulting.

Arzuman, Sadun

2002-12-01T23:59:59.000Z

429

Research Needs: Glass Solar Reflectance and Vinyl Siding  

NLE Websites -- All DOE Office Websites (Extended Search)

Research Needs: Glass Solar Reflectance and Vinyl Siding Title Research Needs: Glass Solar Reflectance and Vinyl Siding Publication Type Report LBNL Report Number LBNL-5022E Year...

430

Research Needs: Glass Solar Reflectance and Vinyl Siding  

E-Print Network (OSTI)

properties of reflected solar radiation from glass surfaces,transfer at the siding surface. Direct solar radiation tosiding, reflected solar radiation from nearby surfaces,

Hart, Robert

2012-01-01T23:59:59.000Z

431

Reflection Survey At Jemez Pueblo Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Reflection Survey At Jemez Pueblo Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Jemez Pueblo Area (DOE GTP)...

432

Reflection Survey At Wister Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Reflection Survey At Wister Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Wister Area (DOE GTP) Exploration...

433

Potential benefits of solar reflective car shells: Cooler cabins...  

NLE Websites -- All DOE Office Websites (Extended Search)

of solar reflective car shells: Cooler cabins, fuel savings and emission reductions Title Potential benefits of solar reflective car shells: Cooler cabins, fuel savings and...

434

Electrochromic window with high reflectivity modulation  

DOE Patents (OSTI)

A multi-layered, active, thin film, solid-state electrochromic device having a high reflectivity in the near infrared in a colored state, a high reflectivity and transmissivity modulation when switching between colored and bleached states, a low absorptivity in the near infrared, and fast switching times, and methods for its manufacture and switching are provided. In one embodiment, a multi-layered device comprising a first indium tin oxide transparent electronic conductor, a transparent ion blocking layer, a tungsten oxide electrochromic anode, a lithium ion conducting-electrically resistive electrolyte, a complimentary lithium mixed metal oxide electrochromic cathode, a transparent ohmic contact layer, a second indium oxide transparent electronic conductor, and a silicon nitride encapsulant is provided. Through elimination of optional intermediate layers, simplified device designs are provided as alternative embodiments. Typical colored-state reflectivity of the multi-layered device is greater than 50% in the near infrared, bleached-state reflectivity is less than 40% in the visible, bleached-state transmissivity is greater than 60% in the near infrared and greater than 40% in the visible, and spectral absorbance is less than 50% in the range from 0.65-2.5 .mu.m.

Goldner, Ronald B. (Lexington, MA); Gerouki, Alexandra (Medford, MA); Liu, Te-Yang (Arlington, MA); Goldner, Mark A. (Cambridge, MA); Haas, Terry E. (Southborough, MA)

2000-01-01T23:59:59.000Z

435

Land Surface Reflectance: A Possible Earth Science  

E-Print Network (OSTI)

are in magenta, water bodies are outlined in white. MODIS Surface Reflectance South Africa From: E. Vermote, UMD correction (low, medium, high) ­ cloud and cloud shadow ­ snow flag ­ land/water flag · Supplemental information ­ Viewing geometry (view and solar zenith and azimuth angles) ­ Geolocation (lat

436

Heat reflecting tape for thermoelectric converter  

DOE Patents (OSTI)

Threads are interlaced with thermoelectric wires to provide a woven cloth in tape form, there being an intermediate layer of heat radiation reflecting material (e.g., aluminum foil) insulated electrically from said wires, which are of opposite thermoelectric polarity and connected as a plurality of thermocouples.

Purdy, David L. (Indiana, PA)

1977-01-01T23:59:59.000Z

437

Dynamic shading enhancement for reflectance transformation imaging  

Science Conference Proceedings (OSTI)

We propose a set of dynamic shading enhancement techniques for improving the perception of details, features, and overall shape characteristics from images created with Reflectance Transformation Imaging (RTI) techniques. Selection of these perceptual ... Keywords: Visualization, cultural heritage shading enhancement, illumination, image processing

Gianpaolo Palma; Massimiliano Corsini; Paolo Cignoni; Roberto Scopigno; Mark Mudge

2010-09-01T23:59:59.000Z

438

Reflected Solar Radiances from Regional Scale Scenes  

Science Conference Proceedings (OSTI)

A set of bi-directional reflectance models is presented for various atmospheric scene types. The models were composited from data collected from an aircraft platform in May-July 1979 during Summer MONEX. The space scale of the composited models ...

John M. Davis; Stephen K. Cox

1982-11-01T23:59:59.000Z

439