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Note: This page contains sample records for the topic "determination seismic stimulation" 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.


1

Seismic stimulation for enhanced oil recovery  

E-Print Network [OSTI]

M. , and Z. Wang, 1992, Seismic properties of pore ?uids:2005, Relationships between seismic and hydrological proper-by d/dt ? ? / ? t ? u · ?. Seismic stimulation Biot, M. A. ,

Pride, S.R.

2008-01-01T23:59:59.000Z

2

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

E-Print Network [OSTI]

the distribution of seismic energy within the reservoir.Field Monitoring of ASR Seismic Stimulation Source at LostField Results from Seismic Stimulation, 17th International

Daley, Tom; Majer, Ernie

2007-01-01T23:59:59.000Z

3

THMC Modeling of EGS Reservoirs ? Continuum through Discontinuum Representations: Capturing Reservoir Stimulation, Evolution and Induced Seismicity  

Broader source: Energy.gov [DOE]

THMC Modeling of EGS Reservoirs ? Continuum through Discontinuum Representations: Capturing Reservoir Stimulation, Evolution and Induced Seismicity presentation at the April 2013 peer review meeting held in Denver, Colorado.

4

Testing to determine relay seismic ruggedness  

Science Journals Connector (OSTI)

The seismic qualification of equipment in operating nuclear plants has been identified as a potential safety concern in U.S. Nuclear Regulatory Commission (USNRC) Unresolved Safety Issue (USI) A-46, “Seismic Qualification of Equipment in Operating Nuclear Power Plants”. In response to this concern, the Seismic Qualification Utility Group (SQUG), with support from the Electric Power Research Institute (EPRI), has undertaken a program to demonstrate the seismic adequacy of essential equipment by the use of actual experience with such equipment in plants which have undergone significant earthquakes and by the use of available test data for similar equipment. An important part of this program is the development of the methodology and test data for verifying the functionality of electrical relays used in essential circuits needed for plant shutdown during a seismic event. This paper describes the EPRI supported relay testing program to supplement existing relay test data. Many old relays which are used in safe shutdown systems of SQUG plants and for which seismic test data do not exist have been shake-table tested. The testing performed on these relays and the test results for two groups of relays are summarized in this paper.

K.L. Merz; M.P. Wade; Jess Betlack

1990-01-01T23:59:59.000Z

5

Seismic imaging of hydraullically-stimulated fractures: A numerical study of the effect of the source mechanism  

E-Print Network [OSTI]

We present a numerical study of seismic imaging of hydraulically stimulated fractures using a single source from an adjacent fracturing-process. The source is either a point force generated from the perforation of the ...

Shabelansky, Andrey Hanan

2012-01-01T23:59:59.000Z

6

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

7

An integrated approach to seismic stimulation of oil reservoirs: laboratory, field and theoretical results from DOE/industry collaborations.  

SciTech Connect (OSTI)

It has been observed repeatedly that low-frequency (10-500 Hz) seismic stress waves can enhance oil production from depleted reservoirs . Until recently, the majority of these observations have been anecdotal or at the proof-of-concept level. The physics coupling stress waves to multiphase fluid flow behavior in porous media is still poorly understood, even though numerous underlying physical mechanisms have been proposed to explain the observations . Basic research on the phenomenon is being conducted through a U .S. Department of Energy funded collaboration between Lawrence Berkeley National Laboratory, the University of California at Berkeley, Los Alamos National Laboratory and the U .S . oil and gas industry . The project has focused on three main areas of research: (1) laboratory core flow experiments, (2) field seismic monitoring of downhole stimulation tests, and (3) theoretical modeling of the coupled stress/flow phenomenon . The major goal is to obtain a comprehensive scientific understanding of the seismic stimulation phenomenon so that field application technologies can be improved. Initial developments and experimental results in all three research focus areas confirm historic observations that the stimulated flow phenomenon is real and that a fundamental scientific understanding can be obtained through continued research . Examples of project results and developments are presented here.

Roberts, P. M. (Peter M.); Majer, Ernest Luther; Lo, W. C. (Wei-Cheng); Sposito, Garrison,; Daley, T. M. (Thomas M.)

2003-01-01T23:59:59.000Z

8

NEPA CX Determination SS-SC-11-01 for SSRL Seismic Upgrade Phase 2  

Broader source: Energy.gov (indexed) [DOE]

1 for SSRL Seismic Upgrade Phase 2 1 for SSRL Seismic Upgrade Phase 2 National Environmental Policy Act (NEPA) Categorical Exclusion (CX) Determination A. SSO NEPA Control #: SS-SC-11-01 B. Brief Description of Proposed Action: The Stanford Synchrotron Radiation Lightsource (SSRL) is proposing to upgrade a portion of the existing Stanford Positron-Electron Asymmetric Ring (SPEAR) to meet seismic standards. The proposed work includes : 1) the replacement of concrete roof blocks, placement of footings and new concrete walls, and installation of seismic connections at the old Beam Line 4; 2) the replacement of existing concrete roof blocks with precast roof blocks, placement of new footings, and installation of seismic anchors and connections at the northeast section of the

9

A New Seismic Data System for Determining Nuclear Test Yields At the Nevada Test Site  

SciTech Connect (OSTI)

An important capability in conducting underground nuclear tests is to be able to determine the nuclear test yield accurately within hours after a test. Due to a nuclear test moratorium, the seismic method that has been used in the past has not been exercised since a non-proliferation high explosive test in 1993. Since that time, the seismic recording system and the computing environment have been replaced with modern equipment. This report describes the actions that have been taken to preserve the capability for determining seismic yield, in the event that nuclear testing should resume. Specifically, this report describes actions taken to preserve seismic data, actions taken to modernize software, and actions taken to document procedures. It concludes with a summary of the current state of the data system and makes recommendations for maintaining this system in the future.

LEE, JONATHAN W.

2001-11-01T23:59:59.000Z

10

Method and apparatus for determining nutrient stimulation of biological processes  

DOE Patents [OSTI]

A method and apparatus are disclosed for determining the nutrients to stimulate microorganisms in a particular environment. A representative sample of microorganisms from a particular environment are contacted with multiple support means wherein each support means has intimately associated with the surface of the support means a different nutrient composition for microorganisms in the sample. The multiple support means is allowed to remain in contact with the microorganisms in the sample for a time period sufficient to measure difference in microorganism effects for the multiple support means. Microorganism effects for the multiple support means are then measured and compared. The invention is particularly adaptable to being conducted in situ. The additional steps of regulating nutrients added to the particular environment of microorganisms can enhance the desired results. Biological systems particularly suitable for this invention are bioremediation, biologically enhanced oil recovery, biological leaching of metals, and agricultural bioprocesses. 5 figs.

Colwell, F.S.; Geesey, G.G.; Gillis, R.J.; Lehman, R.M.

1999-07-13T23:59:59.000Z

11

Method and apparatus for determining nutrient stimulation of biological processes  

DOE Patents [OSTI]

A method and apparatus is described for determining the nutrients to stimulate microorganisms in a particular environment. A representative sample of microorganisms from a particular environment are contacted with multiple support means wherein each support means has intimately associated with the surface of the support means a different nutrient composition for said microorganisms in said sample. The multiple support means is allowed to remain in contact with the microorganisms in the sample for a time period sufficient to measure differences in microorganism effects for the multiple support means. Microorganism effects for the multiple support means are then measured and compared. The invention is particularly adaptable to being conducted in situ. The additional steps of regulating nutrients added to the particular environment of microorganisms can enhance the desired results. Biological systems particularly suitable for this invention are bioremediation, biologically enhanced oil recovery, biological leaching of metals, and agricultural bioprocesses. 5 figs.

Colwell, F.S.; Geesey, G.G.; Gillis, R.J.; Lehman, R.M.

1997-11-11T23:59:59.000Z

12

Seismic yield determination of Soviet underground nuclear explosions at the Shagan River test site  

Science Journals Connector (OSTI)

......1986a, Yield estimates of Nevada test site explosions obtained from seismic...Nuttli's method to estimate yield of Nevada test site explosions recorded on Lawrence...magnitude and explosion yield for Nevada Test Site explosions. He also applied......

Frode Ringdal; Peter D. Marshall; Ralph W. Alewine

1992-04-01T23:59:59.000Z

13

Full Reviews: Seismicity and Seismic  

Broader source: Energy.gov [DOE]

Below are the project presentations and respective peer reviewer comments for Seismicity and Seismic.

14

Method for migrating seismic data by using ray tracing in determining two way travel times  

SciTech Connect (OSTI)

A method is described for depth migrating ray traces before stacking comprising the steps of: receiving raw seismic data signals representing acoustic waves generated by a plurality of sources and detected by a plurality of receivers, each of said sources and said receivers having a surface position; generating a set of one way travel times for each surface position to all image points; storing said one way travel times; identifying a set of one way travel times from one source surface position to each of said image points; identifying a second set of one way travel times from one receiver surface position to each of said image points; calculating a two way travel time set to said image points by summing said set of one way travel times for said one source surface position and said second set of one way travel times for said one receiver surface position to each of said image points; mapping a seismic trace associated with a source and receiver combination represented by said two way travel time set; and displaying said map of said seismic trace associated with said source and receiver combination.

Wang, Sheinshion; Sinton, J.B.; Hanson, D.W.

1993-07-20T23:59:59.000Z

15

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

SciTech Connect (OSTI)

The objective of the project was 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 focused on West Coalinga Field in California. The project initially attempted to build reservoir models based on different geologic and geophysical data independently using different tools, then to compare the results, and ultimately to integrate them all. We learned, however, that this strategy was impractical. The different data and tools need to be integrated from the beginning because they are all interrelated. This report describes a new approach to geostatistical modeling and presents an integration of geology and geophysics to explain the formation of the complex Coalinga reservoir.

Matthias G. Imhof; James W. Castle

2005-02-01T23:59:59.000Z

16

Seismic stations  

Science Journals Connector (OSTI)

In the previous chapters, the equipment used for seismic stations has been described. When putting this equipment out in the field, we have a seismic station. Unfortunately it is not as simple as just putting ...

Jens Havskov; Gerardo Alguacil

2004-01-01T23:59:59.000Z

17

Abstract, AGU Fall meeting, San Francisco, 10-14 December, 2007 Seismic characterisation of hydraulic stimulation tests at the Coso geothermal  

E-Print Network [OSTI]

of hydraulic stimulation tests at the Coso geothermal area, California Bruce R. Julian U. S. Geological Survey, Durham DH1 3LE, U.K., g.r.foulger@durham.ac.uk Francis C. Monastero Geothermal Program Office, U. S. Navy and after fluid injection tests at the Coso geothermal area, California, to map the fractures formed

Foulger, G. R.

18

Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data,  

Open Energy Info (EERE)

Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data, Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data, Using Soft Computing, Fractals, and Shear Wave Anisotropy Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data, Using Soft Computing, Fractals, and Shear Wave Anisotropy Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Fracture Characterization Technologies Project Description The proposed program will focus on predicting characteristics of fractures and their orientation prior to drilling new wells. It will also focus on determining the location of the fractures, spacing and orientation during drilling, as well as characterizing open fractures after stimulation to help identify the location of fluid flow pathway within the EGS reservoir. These systems are created by passively injecting cold water, and stimulating the permeation of the injected water through existing fractures into hot wet and hot dry rocks by thermo-elastic cooling shrinkage. The stimulated, existing fractures thus enhance the permeability of the hot rock formations, hence enabling better circulation of water for the purpose of producing the geothermal resource. The main focus of the project will be on developing better understanding of the mechanisms for the stimulation of existing fractures, and to use the information for better exploitation of the high temperature geothermal resources located in the northwest portion of the Geysers field and similar fields.

19

Seismic Monitoring - Hanford Site  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Curation Services Ecological Monitoring Environmental Surveillance Meteorology and Climatology Services Seismic Monitoring Seismic Monitoring Email Email Page | Print Print Page...

20

Seismicity Maps  

Science Journals Connector (OSTI)

...density, highly porous airborne vol- canic ejecta near...explosions for such stress-release experiments cannot be...a)+e2 /7 f is the fraction of stress drop and a...Steinbrugge Pacific Fire Rating Bureau San Francisco...fault belt without the release of seismic energy. Hence...

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Seismic Mapping Of The Subsurface Structure At The Ryepatch Geothermal...  

Open Energy Info (EERE)

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...

22

Determination of certain trapping parameters in mercury sulphide (03B1-HgS) by Thermally Stimulated Conductivity  

E-Print Network [OSTI]

, 6, 7, 8] is 2.275 eV at liquid helium, 2.250 eV at liquid nitrogen and 2.100 eV at room temperature les résultats de nos mesures de courants stimulés thermiquement sur le sulfure de mercure. Celles profondeur du niveau (Et = 300 meV), la densité de pièges (Nt = 2,55 1012 cm- 3) et la section efficace de

Boyer, Edmond

23

Seismic Isolation Working Meeting Gap Analysis Report  

SciTech Connect (OSTI)

The ultimate goal in nuclear facility and nuclear power plant operations is operating safety during normal operations and maintaining core cooling capabilities during off-normal events including external hazards. Understanding the impact external hazards, such as flooding and earthquakes, have on nuclear facilities and NPPs is critical to deciding how to manage these hazards to expectable levels of risk. From a seismic risk perspective the goal is to manage seismic risk. Seismic risk is determined by convolving the seismic hazard with seismic fragilities (capacity of systems, structures, and components (SSCs)). There are large uncertainties associated with evolving nature of the seismic hazard curves. Additionally there are requirements within DOE and potential requirements within NRC to reconsider updated seismic hazard curves every 10 years. Therefore opportunity exists for engineered solutions to manage this seismic uncertainty. One engineered solution is seismic isolation. Current seismic isolation (SI) designs (used in commercial industry) reduce horizontal earthquake loads and protect critical infrastructure from the potentially destructive effects of large earthquakes. The benefit of SI application in the nuclear industry is being recognized and SI systems have been proposed, in the American Society of Civil Engineers (ASCE) 4 standard, to be released in 2014, for Light Water Reactors (LWR) facilities using commercially available technology. However, there is a lack of industry application to the nuclear industry and uncertainty with implementing the procedures outlined in ASCE-4. Opportunity exists to determine barriers associated with implementation of current ASCE-4 standard language.

Justin Coleman; Piyush Sabharwall

2014-09-01T23:59:59.000Z

24

Seismic Array Software System  

E-Print Network [OSTI]

Seismic Array Software System Sam Irvine, Martin Lukac,of a Portable Broadband Seismic Array Long - • Part of theStudy the propagation of seismic waves in Mexico City • Line

2005-01-01T23:59:59.000Z

25

Submarine Seismic Investigations  

Science Journals Connector (OSTI)

...March 1941 research-article Submarine Seismic Investigations E. C. Bullard T. F. Gaskell The refraction seismic method has been used to investigate the...techniques, and results of a refraction seismic survey of the rock surface underlying...

1941-01-01T23:59:59.000Z

26

Advanced Seismic While Drilling System  

SciTech Connect (OSTI)

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

27

Tutorial on seismic interferometry: Part 1 --Basic principles and applications  

E-Print Network [OSTI]

Tutorial on seismic interferometry: Part 1 -- Basic principles and applications Kees Wapenaar1 , Deyan Draganov1 , Roel Snieder2 , Xander Campman3 , and Arie Verdel3 ABSTRACT Seismic interferometry is the retrieval of seismic surface-wave responses from ambient noise and the subsequent tomographic determination

Snieder, Roel

28

Seismic sources  

DOE Patents [OSTI]

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. Longitudinal shear waves are generated by an armature that is driven to rapidly oscillate along the axis of 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 for more than about one minute. 9 figs.

Green, M.A.; Cook, N.G.W.; McEvilly, T.V.; Majer, E.L.; Witherspoon, P.A.

1987-04-20T23:59:59.000Z

29

Categorical Exclusion Determinations: Texas | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

January 29, 2013 January 29, 2013 CX-009851: Categorical Exclusion Determination Development of Methods to Prohibit and Remediate Loss of Annular Isolation in Shale Gas Wells CX(s) Applied: A9, A11, B3.6 Date: 01/29/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory January 22, 2013 CX-009854: Categorical Exclusion Determination Induced Seismicity/Fluid Injection: Development of Strategies to Manage Fluid Disposal in Shale Plays CX(s) Applied: A9, A11 Date: 01/22/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory January 14, 2013 CX-009857: Categorical Exclusion Determination Seismic Stimulation for Enhanced Oil Recovery CX(s) Applied: A9, A11, B3.6, B3.7 Date: 01/14/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory

30

CX-012136: Categorical Exclusion Determination | Department of...  

Broader source: Energy.gov (indexed) [DOE]

Exclusion Determination CX-012136: Categorical Exclusion Determination Distributed Fiber Optic Arrays: Integrated Temperature and Seismic Sensing for Detection of Carbon...

31

CX-011013: Categorical Exclusion Determination | Department of...  

Broader source: Energy.gov (indexed) [DOE]

Exclusion Determination CX-011013: Categorical Exclusion Determination Distributed Fiber Optic Arrays: Integrated Temperature and Seismic Sensing for Detection of Carbon...

32

CX-011017: Categorical Exclusion Determination | Department of...  

Broader source: Energy.gov (indexed) [DOE]

Exclusion Determination CX-011017: Categorical Exclusion Determination Distributed Fiber Optic Arrays: Integrated Temperature and Seismic Sensing for Detection of Carbon...

33

Seismic sources  

DOE Patents [OSTI]

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

34

Seismic Design Expectations Report  

Broader source: Energy.gov [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...

35

Assessing Beyond Design Basis Seismic Events and Implications on Seismic  

Broader source: Energy.gov (indexed) [DOE]

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

36

SEISMIC RAY THEORY Seismic Ray Theory presents the most comprehensive treatment of the seismic  

E-Print Network [OSTI]

#12;SEISMIC RAY THEORY Seismic Ray Theory presents the most comprehensive treatment of the seismic ray method available. This method plays an important role in seismology, seismic exploration, and the interpretation of seismic measurements. The book presents a consistent treatment of the seismic ray method, based

Cerveny, Vlastislav

37

COLORADO FRONT RANGE SEISMICITY AND SEISMIC HAZARD  

E-Print Network [OSTI]

; Herrmann, 1981) and secondary oil recovery in western Colorado at the Rangely oil field (Gibbs et al. 1973COLORADO FRONT RANGE SEISMICITY AND SEISMIC HAZARD Anne F. Sheehan University of Colorado at Boulder, 2200 Colorado Avenue, Boulder, CO 80309 John D. Godchaux Trinity University, San Antonio, TX Noah

Sheehan, Anne F.

38

Seismic velocity estimation from time migration  

E-Print Network [OSTI]

Seismic images . . . . . . . . . . . . . . . . .Algorithms producing the seismic velocities from thethe Dix velocities and the true seismic velocities in 2D . .

Cameron, Maria Kourkina

2007-01-01T23:59:59.000Z

39

Seismic Performance Assessment in Dense Urban Environments  

E-Print Network [OSTI]

Kinematic interaction . . 4.4.2 Seismic footing response 6Deterministic seismic hazard analysis . . . . . . . . . .Probabilistic seismic hazard analysis . . . . . . . . .

Mason, Henry Benjamin

2011-01-01T23:59:59.000Z

40

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Project objective: Make Seismic...

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Fast History Matching of Time-Lapse Seismic and Production-Data for High Resolution Models  

E-Print Network [OSTI]

(e.g. porosity, permeability). More recently, the availability of repeated seismic surveys over the time scale of years (i.e., 4D seismic) has shown promising results for the qualitative determination of changes in fluid phase distributions...

Rey Amaya, Alvaro

2012-10-19T23:59:59.000Z

42

Seismic Isolation and Decrease of Seismic Effects on Bridges  

Science Journals Connector (OSTI)

A planned road bridge in an active seismic zone near the city of Žilina in Slovakia was analysed for seismic effects. The seismic analysis has shown that an inelastic structural ... is very likely. Because of the...

Associate Professor Rudolf Ároch…

2014-01-01T23:59:59.000Z

43

Optically stimulated differential impedance spectroscopy  

DOE Patents [OSTI]

Methods and apparatuses for evaluating a material are described. Embodiments typically involve use of an impedance measurement sensor to measure the impedance of a sample of the material under at least two different states of illumination. The states of illumination may include (a) substantially no optical stimulation, (b) substantial optical stimulation, (c) optical stimulation at a first wavelength of light, (d) optical stimulation at a second wavelength of light, (e) a first level of light intensity, and (f) a second level of light intensity. Typically a difference in impedance between the impedance of the sample at the two states of illumination is measured to determine a characteristic of the material.

Maxey, Lonnie C; Parks, II, James E; Lewis, Sr., Samuel A; Partridge, Jr., William P

2014-02-18T23:59:59.000Z

44

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"

45

Seismic characterization of fractures  

E-Print Network [OSTI]

Seismic characterization of fractures. José M. Carcione, OGS, Italy. Fractured geological formations are generally represented with a stress-strain relation.

JM Carcione

2014-06-07T23:59:59.000Z

46

Seismic Imaging and Monitoring  

SciTech Connect (OSTI)

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

47

CX-100004: Categorical Exclusion Determination | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Categorical Exclusion Determination Leveraging a Fundamental Understanding of Fracture Flow, Dynamic Permeability Enhancement, and Induced Seismicity to Improve Geothermal...

48

Seismic image waves  

Science Journals Connector (OSTI)

......involved in the seismic imaging process, for example the migration...revisited, 60th Ann. Int. Mtg., Soc. Expl. Geophys...involved in the seismic imaging process, for example the migration...revisited, 60th Ann. Int. Mtg., SOC. Expl. Geophys......

Peter Hubral; Martin Tygel; Jörg Schleicher

1996-05-01T23:59:59.000Z

49

Blind seismic deconvolution using variational Bayesian method  

Science Journals Connector (OSTI)

Abstract Blind seismic deconvolution, which comprises seismic wavelet and reflectivity sequence, is a strongly ill-posed problem. The reflectivity sequence is modeled as a Bernoulli–Gaussian (BG) process, depending on four parameters (noise variance, high and low reflector variances, and reflector density). These parameters need to be estimated from the seismic record, which is the convolution of the reflectivity sequence and the seismic wavelet. In this paper, we propose a variational Bayesian method for blind seismic deconvolution which can determine the reflectivity sequence and the seismic wavelet. The connection between variational Bayesian blind deconvolution and the minimization of the Kullback–Leibler divergence of two probability distributions is also established. The gamma, beta distributions are used for the unknown parameters (hyperparameters) as prior distribution and also we give how these distributions can be inferred in actual situations. The proposed algorithms are tested by simulation and compared to existing blind deconvolution methods. The results show that variational Bayesian method has better agreement with the actual value.

Li Yanqin; Zhang Guoshan

2014-01-01T23:59:59.000Z

50

New Paradigm for Seismic Networks: Crowd-Sourced Seismic Networks,  

E-Print Network [OSTI]

#12;New Paradigm for Seismic Networks: Crowd-Sourced Seismic Networks, including Buildings Tom Egill Hauksson #12;SCSN: what does it encompass? · ~360 Seismic Stations · ~60 stations from partners SCSN/SCEDC total of ~26 FTE's #12;Crowd Sourced Networks · Current broadband seismic network

Greer, Julia R.

51

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

52

Distributed Acoustic and Seismic Sensing  

Science Journals Connector (OSTI)

An overview of fiber optic distributed acoustic and seismic sensor system architectures is presented.

Kirkendall, Clay

53

Seismicity and Reservoir Fracture Characterization  

Broader source: Energy.gov [DOE]

Below are the project presentations and respective peer review results for Seismicity and Reservoir Fracture Characterization.

54

Fracture Properties From Seismic Scattering  

E-Print Network [OSTI]

Fractures scatter seismic energy and this energy can be analyzed to provide information about fracture

Burns, Daniel R.

2007-01-01T23:59:59.000Z

55

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

56

Resonant seismic emission of subsurface objects  

E-Print Network [OSTI]

E . , and S. Keydar, 1998, Seismic monitoring of diffractionthe barrel. The Resonant Seismic Emission Source ReceiverFigure 1. Geometry o f the seismic experiment to locate a

Korneev, Valeri A.

2010-01-01T23:59:59.000Z

57

SEI0: CENS Seismic Research: Overview  

E-Print Network [OSTI]

catastrophe (from Berry 2002). Seismic waves show a smearedSeismology/index.html CENS Seismic Research: OverviewRecent developments in seismic source theory argue that

2005-01-01T23:59:59.000Z

58

Seismic demands in precast concrete diaphragms  

E-Print Network [OSTI]

and Mander, J. B. (2003). “Seismic Performance of PrecastState-of-the-Art Report on Seismic Resistance of Prestresseddevelopment of a diaphragm seismic design methodology,” PCI

Schoettler, Matthew John

2010-01-01T23:59:59.000Z

59

Seismic response study for base-isolated CANDU 3  

SciTech Connect (OSTI)

The design of the CANDU 3 nuclear power plant rated at 450 MW of net output power is being developed by AECL. During the development of the CANDU 3 design, various design options including the use of seismic isolator bearings are considered to mitigate effects of seismic loads. The current design of CANDU 3 is of fixed-base construction. However, analytical studies are undertaken to determine the effects of using seismic isolation. This paper presents a study of the benefits of using seismic isolator bearings for the CANDU 3 nuclear power plant. To base-isolate the CANDU 3 plant, the reactor and other safety-related buildings would be located on a common mat isolated from the foundation with the use of elastomeric bearings. Seismic analyses are performed to predict the behavior of the structures. A mathematical model consisting of lumped masses and beams to represent different buildings of the CANDU 3 plant is considered in the analysis. The model considers the nonlinear characteristics of the elastomeric bearing. Nonlinear time-history analyses are performed to determine the seismic responses. The acceleration, displacement and floor response spectra of different buildings are determined for both the fixed-base and base-isolated cases. The results show that the use of seismic isolation would reduce the acceleration responses of the buildings significantly. However, the displacement responses of the buildings would be increased which would require special considerations for interconnected systems. Moreover, it is shown that the floor response spectra would be reduced drastically for a base-isolated structure as compared with a fixed-base structure. This reduction of seismic responses would be of considerable benefit for the design of structures and seismic qualification of components. Lastly, a parametric study is performed to determine the effect of varying seismic input using non-linear analysis techniques.

Biswas, J.K.; Saudy, A.M. [Atomic Energy of Canada Limited, Saskatoon, Saskatchewan (Canada). Civil Engineering Branch

1995-12-31T23:59:59.000Z

60

Chapter 7 - Prestack Seismic Inversion and Seismic Attribute Analysis  

Science Journals Connector (OSTI)

Abstract Based on seismic, logging, and geological data, the seismic inversion technique can reveal the spatial characteristics (including reservoir thickness, structural characteristics, extending direction, extending range, pinch-out location, and others) of the target layers, such as reservoirs or coal seams. By combining a large area of the continuous distribution of seismic data with high-resolution well logging data, this technique transforms conventional seismic data into a high-resolution well data volume, enabling us to use the acoustic characteristics of rock formations to ascertain lithological interfaces. So we can extrapolate the borehole lithological and physical properties and hydrocarbon features from points to lines and lines to faces, and predict lateral reservoir variations and reservoir properties from known reservoir characteristics. Seismic inversion technology has been one of the core technologies for reservoir characteristics and reservoir prediction. Seismic attribute analysis is the premise of fine reservoir characteristics and fine 3D seismic interpretation, which help us uncover information about lithology and reservoir heterogeneity from seismic data. The work of seismic attribute analysis includes (1) extracting various seismic attributes from poststack seismic data; (2) conducting crossplot analysis of seismic attributes and reservoir properties (including geology, well logging, and petrophysical parameters) to establish relationships between seismic attributes and reservoir parameters; and (3) dynamically interpreting 3D seismic, geological, and logging data, which helps us to study the relationships between seismic reflection characteristics and sedimentary and tectonic information, predict the reservoir spatial distribution, and reveal how fracture systems influence the reservoir distribution. Development of the seismic inversion technique in reservoir characterization can be summarized in four stages: the first stage was in the 1960s. In this stage, the exploration targets were structural reservoirs, and seismic inversion techniques were not used. The second stage was in the 1970s. The exploration targets were structural and lithological reservoirs, and no well-constraint seismic inversion techniques were used. The third stage was in the 1980s, when many new techniques were developed. Seismic inversion techniques, including the prestack amplitude versus offset (AVO) technique and wave impedance inversion technique, developed rapidly and greatly improved our understanding of seismic reservoir characterization. The fourth stage is the stage of reservoir characterization and dynamic monitoring in the 1990s. Seismic inversion techniques are used for reservoir dynamic characterization, such as 3D AVO inversion, well-seismic joint inversion, reservoir characteristics curve reconstruction, multiparameter reservoir inversion, and the elastic wave impedance inversion techniques. Prestack seismic data contain richer information than do poststack data, so prestack seismic inversion and attribute analysis are increasingly important in oil and gas exploration.

Ming Li; Yimin Zhao

2014-01-01T23:59:59.000Z

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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

18 - Seismic Design  

Science Journals Connector (OSTI)

Abstract The damages and disruptions of the subsea pipelines caused by an earthquake may have severe effects on the service life, since it may lead to a significant financial loss due to service interruptions, fires, explosions, and environmental contamination. In general, the seismic analyses of the permanent ground deformation for buried and unburied pipes, and seismic ground waves for unburied pipes are required for designing pipeline systems. Many subsea pipelines are often buried for stability and mechanical protection in the shallow water area; otherwise, they are laid on the seabed. This chapter addresses available seismic design codes, standards and design criteria for subsea pipelines, a general design and analysis methodology for fault crossing and seismic ground wave, design and analysis examples using a static model for buried pipe subjected to permanent ground deformations due to the foundation failure, a time history dynamic model for unburied pipelines subjected to seismic ground waves, the mitigation methods for subsea pipelines to avoid seismic hazards including modifying loading and boundary conditions, modifying pipeline configuration, modifying pipeline route selection, and improving emergency response.

Qiang Bai; Yong Bai

2014-01-01T23:59:59.000Z

62

CX-001424: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

24: Categorical Exclusion Determination 24: Categorical Exclusion Determination CX-001424: Categorical Exclusion Determination Thermal-Hydrological-Mechanical-Chemical Modeling of Enhanced Geothermal System Reservoirs - Continuum through Discontinuum Representations: Capturing Reservoir Stimulation, Evolution and Induced Seismicity CX(s) Applied: A9 Date: 03/29/2010 Location(s): Pennsylvania Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Pennsylvania State University would develop computation models to describe the stimulation and projection phases of Enhanced Geothermal System reservoirs and complete analysis relevant to current and future demonstration projects. The study would develop coupled Thermal-Hydrological-Mechanical-Chemical (THMC) models capable of accommodating (i) static and dynamic rupture and failure in discontinuous

63

Chapter 5 - Seismic Attribute Analysis  

Science Journals Connector (OSTI)

Abstract Seismic attributes are the geometry, kinematics, dynamics, and statistical characteristics of seismic waves, which are extracted or derived from prestack and poststack seismic data by mathematical transformation. For a long time, seismic data only have been used to track lineups of seismic waves in order to delineate the geometry and structural characteristics of oil and gas reservoirs. In fact, there is rich information about lithology, physical properties, and fluid composition hidden in seismic data. As we all know, the characteristics of the seismic signal are caused by petrophysical characteristics and its variability. Geoscientists need to do seismic attribute analyses and calibration in order to eliminate data distortion and dig out lithological and physical properties hidden in seismic data. Especially when people are eager to cognize the heterogeneity of lithological and stratigraphic reservoirs, the rich information about the spatial variability in seismic data seems more precious. In recent years, with the advancement of reservoir interpretation and the needs of three dimensional (3-D) seismic data analysis, scientists have found out more and more new attributes on the basis of conventional seismic attributes. At the same time, methods and means used for the calculation and analysis of seismic attributes are increasing. Seismic attribute analysis has been successfully applied in reservoir lithological prediction, hydrocarbon potential prediction, and reservoir property estimates.

Ming Li; Yimin Zhao

2014-01-01T23:59:59.000Z

64

3-D seismic velocity and attenuation structures in the geothermal field  

SciTech Connect (OSTI)

We conducted delay time tomography to determine 3-D seismic velocity structures (Vp, Vs, and Vp/Vs ratio) using micro-seismic events in the geothermal field. The P-and S-wave arrival times of these micro-seismic events have been used as input for the tomographic inversion. Our preliminary seismic velocity results show that the subsurface condition of geothermal field can be fairly delineated the characteristic of reservoir. We then extended our understanding of the subsurface physical properties through determining of attenuation structures (Qp, Qs, and Qs/Qp ratio) using micro-seismic waveform. We combined seismic velocities and attenuation structures to get much better interpretation of the reservoir characteristic. Our preliminary attanuation structures results show reservoir characterization can be more clearly by using the 3-D attenuation model of Qp, Qs, and Qs/Qp ratio combined with 3-D seismic velocity model of Vp, Vs, and Vp/Vs ratio.

Nugraha, Andri Dian [Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)] [Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia); Syahputra, Ahmad [Geophyisical Engineering, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)] [Geophyisical Engineering, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia); Fatkhan,; Sule, Rachmat [Applied Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)] [Applied Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)

2013-09-09T23:59:59.000Z

65

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems; 2010 Geothermal Technology Program Peer Review Report Seismic Fracture Characterization Methods for...

66

Controllable seismic source  

DOE Patents [OSTI]

An apparatus for generating seismic waves includes a housing, a strike surface within the housing, and a hammer movably disposed within the housing. An actuator induces a striking motion in the hammer such that the hammer impacts the strike surface as part of the striking motion. The actuator is selectively adjustable to change characteristics of the striking motion and characteristics of seismic waves generated by the impact. The hammer may be modified to change the physical characteristics of the hammer, thereby changing characteristics of seismic waves generated by the hammer. The hammer may be disposed within a removable shock cavity, and the apparatus may include two hammers and two shock cavities positioned symmetrically about a center of the apparatus.

Gomez, Antonio; DeRego, Paul Jeffrey; Ferrel, Patrick Andrew; Thom, Robert Anthony; Trujillo, Joshua J.; Herridge, Brian

2014-08-19T23:59:59.000Z

67

Seismic viscoelastic attenuation Submitted to  

E-Print Network [OSTI]

Seismic viscoelastic attenuation Submitted to: Encyclopedia of Solid Earth Geophysics Harsh Gupta-3046 USA E-mail: vernon.cormier@uconn.edu Tel: 860-486-3547 Fax: 860-486-3346 #12;SEISMIC VISCOELASTIC ATTENUATION Synonyms Seismic intrinsic attenuation Definitions Linear viscoelastic attenuation. The loss

Cormier, Vernon F.

68

Development of a HT seismic downhole tool.  

SciTech Connect (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

69

Subduction Zone Seismic Experiment in Peru: Results From a Wireless Seismic Network  

E-Print Network [OSTI]

Sensing Subduction Zone Seismic Experiment in Peru:results from a wireless seismic Network Igor Stubailo,deployed in Peru. UCLA seismic line in Peru Lake Titicaca

2009-01-01T23:59:59.000Z

70

DOE REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES | Open  

Open Energy Info (EERE)

REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: DOE REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES Details Activities (6) Areas (6) Regions (0) Abstract: Lawrence Berkeley National Laboratory (LBNL) at the direction of the United States Department of Energy (DOE) Geothermal Technologies EGS Program is installing, operating, and/or interfacing seismic arrays at multiple Enhanced Geothermal Systems (EGS) sites. The overall goal is to gather high resolution seismicity data before, during and after stimulation activities at the EGS projects. This will include both surface and borehole deployments (as necessary in available boreholes) to provide high quality

71

Improved Microseismicity Detection During Newberry EGS Stimulations  

SciTech Connect (OSTI)

Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

Dennise Templeton

2013-11-01T23:59:59.000Z

72

Improved Microseismicity Detection During Newberry EGS Stimulations  

SciTech Connect (OSTI)

Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

Dennise Templeton

2013-10-01T23:59:59.000Z

73

Improved Microseismicity Detection During Newberry EGS Stimulations  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

Templeton, Dennise

74

Discrimination of porosity and fluid saturation using seismic velocity analysis  

DOE Patents [OSTI]

The method of the invention is employed for determining the state of saturation in a subterranean formation using only seismic velocity measurements (e.g., shear and compressional wave velocity data). Seismic velocity data collected from a region of the formation of like solid material properties can provide relatively accurate partial saturation data derived from a well-defined triangle plotted in a (.rho./.mu., .lambda./.mu.)-plane. When the seismic velocity data are collected over a large region of a formation having both like and unlike materials, the method first distinguishes the like materials by initially plotting the seismic velocity data in a (.rho./.lambda., .mu./.lambda.)-plane to determine regions of the formation having like solid material properties and porosity.

Berryman, James G. (Danville, CA)

2001-01-01T23:59:59.000Z

75

Seismic refraction survey of the ANS preferred site  

SciTech Connect (OSTI)

Between September 19, 1991 and October 8, 1991 personnel from Martin Marietta Energy Systems, Inc. (Energy Systems), Automated Sciences Group, Inc., and Marrich, Inc. performed a seismic refraction survey at the Advanced Neutron Source (ANS) preferred site. The purpose of this survey was to provide estimates of top-of-rock topography, based on seismic velocities, and to delineate variations in rock and soil velocities. Forty-four seismic refraction spreads were shot to determine top-of-rock depths at 42 locations. Nine of the seismic spreads were shot with long offsets to provide 216 top-of-rock depths for 4 seismic refraction profiles. The refraction spread locations were based on the grid for the ANS Phase I drilling program. Interpretation of the seismic refraction data supports the assumption that the top-of-rock surface generally follows the local topography. The shallow top-of-rock interface interpreted from the seismic refraction data is also supported by limited drill information at the site. Some zones of anomalous data are present that could be the result of locally variable weathering, a localized variation in shale content, or depth to top-of-rock greater than the site norm.

Davis, R.K. (Automated Sciences Group, Inc., Oak Ridge, TN (United States)); Hopkins, R.A. (Marrich, Inc., Knoxville, TN (United States)); Doll, W.E. (Oak Ridge National Lab., TN (United States))

1992-02-01T23:59:59.000Z

76

CX-007563: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

563: Categorical Exclusion Determination 563: Categorical Exclusion Determination CX-007563: Categorical Exclusion Determination Development of Tools for Coupled lnSAR and Seismicity Monitoring of Enhanced Geothermal System Reservoir Development and Management CX(s) Applied: A9, B3.1 Date: 01/18/2012 Location(s): Pennsylvania Offices(s): Golden Field Office Temple University would utilize DOE and cost share funds to develop an integrated set of tools to monitor the evolution of permeability and fluid flow within an enhanced geothermal system (EGS) during both the stimulation and production phases to infer the location, geometry and pore pressure distribution within the subsurface fracture network. CX-007563.pdf More Documents & Publications CX-007562: Categorical Exclusion Determination CX-007562: Categorical Exclusion Determination

77

Chapter 6 - Seismic Inversion Techniques  

Science Journals Connector (OSTI)

Abstract Seismic inversion techniques were developed as a discipline at the same time that seismic technologies were widely applied in oil exploration and development starting in the 1980s. Except for basic theories and principles, seismic inversion techniques are different from traditional seismic exploration methods in geological tasks, involving basic information as well as study approaches. In the early stages of exploration, the geological task of seismic exploration was to find structures and identify traps, and seismic exploration techniques always focused on the ups and downs of reflection interfaces. They mainly relied on the travel time for structural interpretation. The main work of reservoir geophysics is to study the heterogeneity of a reservoir, and the main geological task is to make predictions on the reservoir parameters. Scientists focus on the lateral variation of reservoir characteristics and conduct seismic interpretation based on the information extracted from the results of reservoir seismic inversion. Seismic inversion has developed rapidly in recent years, including recursive inversion, log-constrained inversion, and multiparameter lithological seismic inversion. We choose different methods according to the geological characteristics and specific problems of the study area.

Ming Li; Yimin Zhao

2014-01-01T23:59:59.000Z

78

Optimizing well-stimulation treatment size using mixed integer linear programming  

E-Print Network [OSTI]

This thesis presents a model for optimum sizing of well stimulation treatments. The optimization scheme is based on a combination of a well stimulation type selection and treatment size, therefore determining the optimum type of stimulation...

Picon Aranguren, Oscar

2012-06-07T23:59:59.000Z

79

Analysis of Geothermal Reservoir Stimulation Using Geomechanics...  

Broader source: Energy.gov (indexed) [DOE]

into estimates of seismic hazard relationships between induced seismicity, changes in fracture density, fluid injectionwithdrawal, background stress, and geothermal production....

80

Seismic Design Expectations Report  

Broader source: Energy.gov (indexed) [DOE]

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

Note: This page contains sample records for the topic "determination seismic stimulation" 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

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

82

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.

83

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

84

Seismic Hazard Assessment of the Sheki-Ismayilli Region, Azerbaijan  

SciTech Connect (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

85

Proposed modifications of NRC's standard review plan for seismic analysis  

Science Journals Connector (OSTI)

The paper briefly describes the major changes in seismic analysis and design criteria proposed in the U.S. NRC Standard Review Plan. The changes to the SRP also reflect the resolution of Unresolved Safety Issue (USI) A-40, “Seismic Design Criteria”. The proposed revision provides explicit guidelines for (1) developing site-specific spectra; (2) determination of suitable design time history (ies); (3) the location of seismic input motion; (4) developing floor response spectra; (5) soil-structure interaction (SSI) analysis; (6) analysis of above-ground Seismic Category 1 tanks; and (7) analysis of buried piping and structures. The proposed revision, together with its background material, was issued for public comments on 19 May, 1988, together with a solicitation to address specific questions related to SSI analysis. These are discussed in the paper. The paper concludes with a note on the importance of the progress made and outlines the areas requiring further studies and research.

G. Bagchi; D. Jeng; H. Ashar

1990-01-01T23:59:59.000Z

86

Seismic methods for resource exploration in enhanced geothermal systems  

SciTech Connect (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

87

Imbibition well stimulation via neural network design  

DOE Patents [OSTI]

A method for stimulation of hydrocarbon production via imbibition by utilization of surfactants. The method includes use of fuzzy logic and neural network architecture constructs to determine surfactant use.

Weiss, William (Socorro, NM)

2007-08-14T23:59:59.000Z

88

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.

89

Modeling Three-Dimensional Upper Mantle Seismic Anisotropy with Higher Mode Surface Waves  

E-Print Network [OSTI]

Seismic Anisotropy . . . . . . . . . . . . . . . . . . . .Seismic Wave Propagation in a Weakly Anisotropicof seismic anisotropy . . . . . . . . . . . . . . . .

Yuan, Kaiqing

2014-01-01T23:59:59.000Z

90

CX-001057: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

057: Categorical Exclusion Determination 057: Categorical Exclusion Determination CX-001057: Categorical Exclusion Determination Characterizing Fractures in Geyser's Geothermal Field by Micro-Seismic Data, Using Soft Computing, Fractals, and Shear Wave Anisotropy CX(s) Applied: A9 Date: 03/10/2010 Location(s): California Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The University of Southern California is proposing a project to predict characteristics of fractures and their orientation prior to drilling new wells. The project will also focus on determining the location of the fractures, fracture spacing and orientation during drilling as well as characterizing open fractures after stimulation to help the location of fluid flow pathways within the Enhanced Geothermal System reservoir.

91

Induced Seismicity Impact | Open Energy Information  

Open Energy Info (EERE)

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

92

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Principal Investigator: John H. Queen Hi-Q Geophysical Inc. Track Name: Seismicity and Reservoir Fracture...

93

Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir |  

Open Energy Info (EERE)

Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir Details Activities (3) Areas (1) Regions (0) Abstract: 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 seismic survey covered an area of 3.03 square miles and was designed with 12 north-south receiver lines and 25 east-west source lines. The receiver group interval was 100 feet and the receiver line spacing was 800 feet. The

94

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":"

95

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

96

Automating Shallow Seismic Imaging  

SciTech Connect (OSTI)

This seven-year, shallow-seismic reflection research project had the aim of improving geophysical imaging of possible contaminant flow paths. Thousands of chemically contaminated sites exist in the United States, including at least 3,700 at Department of Energy (DOE) facilities. Imaging technologies such as shallow seismic reflection (SSR) and ground-penetrating radar (GPR) sometimes are capable of identifying geologic conditions that might indicate preferential contaminant-flow paths. Historically, SSR has been used very little at depths shallower than 30 m, and even more rarely at depths of 10 m or less. Conversely, GPR is rarely useful at depths greater than 10 m, especially in areas where clay or other electrically conductive materials are present near the surface. Efforts to image the cone of depression around a pumping well using seismic methods were only partially successful (for complete references of all research results, see the full Final Technical Report, DOE/ER/14826-F), but peripheral results included development of SSR methods for depths shallower than one meter, a depth range that had not been achieved before. Imaging at such shallow depths, however, requires geophone intervals of the order of 10 cm or less, which makes such surveys very expensive in terms of human time and effort. We also showed that SSR and GPR could be used in a complementary fashion to image the same volume of earth at very shallow depths. The primary research focus of the second three-year period of funding was to develop and demonstrate an automated method of conducting two-dimensional (2D) shallow-seismic surveys with the goal of saving time, effort, and money. Tests involving the second generation of the hydraulic geophone-planting device dubbed the ''Autojuggie'' showed that large numbers of geophones can be placed quickly and automatically and can acquire high-quality data, although not under rough topographic conditions. In some easy-access environments, this device could make SSR surveying considerably more efficient and less expensive, particularly when geophone intervals of 25 cm or less are required. The most recent research analyzed the difference in seismic response of the geophones with variable geophone spike length and geophones attached to various steel media. Experiments investigated the azimuthal dependence of the quality of data relative to the orientation of the rigidly attached geophones. Other experiments designed to test the hypothesis that the data are being amplified in much the same way that an organ pipe amplifies sound have so far proved inconclusive. Taken together, the positive results show that SSR imaging within a few meters of the earth's surface is possible if the geology is suitable, that SSR imaging can complement GPR imaging, and that SSR imaging could be made significantly more cost effective, at least in areas where the topography and the geology are favorable. Increased knowledge of the Earth's shallow subsurface through non-intrusive techniques is of potential benefit to management of DOE facilities. Among the most significant problems facing hydrologists today is the delineation of preferential permeability paths in sufficient detail to make a quantitative analysis possible. Aquifer systems dominated by fracture flow have a reputation of being particularly difficult to characterize and model. At chemically contaminated sites, including U.S. Department of Energy (DOE) facilities and others at Department of Defense (DOD) installations worldwide, establishing the spatial extent of the contamination, along with the fate of the contaminants and their transport-flow directions, is essential to the development of effective cleanup strategies. Detailed characterization of the shallow subsurface is important not only in environmental, groundwater, and geotechnical engineering applications, but also in neotectonics, mining geology, and the analysis of petroleum reservoir analogs. Near-surface seismology is in the vanguard of non-intrusive approaches to increase knowledge of the shallow subsurface; our

Steeples, Don W.

2004-12-09T23:59:59.000Z

97

ADVANCED WAVEFORM SIMULATION FOR SEISMIC MONITORING EVENTS  

SciTech Connect (OSTI)

High-Resolution Source Parameters using Calibration from Ambient Seismic Noise (ASN) Zhongwen Zhan, Shengji Wei, Sidao Ni, and Don V. Helmberger Abstract Several new methods have been developed to retrieve local Green's functions based on the cross-correlation of ambient seismic noise (station-to-station) and conventional (source-to-station) inversions. The latter methods provide the most broadband results but require accurate source parameters for phase-delay recovery which depends on the starting model. Considerable progress is being made in providing such information from 3D modeling, Tape et al. (2008), using Adjoint Tomography. But to match waveforms for the recent Chino Hills event still requires shifting synthetics to align on data. This means that it is difficult to use 3D simulations to refine source locations in near-real time. We can avoid the 3D problems by applying the CAP method and storing shifts from past events, Tan (2006), and/or using ASN, Shapiro et al. (2005), to predict lags for surface waves. Here, we directly compare results from CAP predictions with ASN results using stations near the Chino Hills event. We use the same SC seismic model as used in the Library of Earthquakes to generate Green's functions for noise (single force) for comparison with ASN correlations and allow Cap delays. We apply these delays or corrections to determine precise Centroid locations.

Helmberger, Donald V.; Tromp, Jeroen; Rodgers, Arthur J.

2009-04-30T23:59:59.000Z

98

High vertical resolution crosswell seismic imaging  

DOE Patents [OSTI]

A method for producing high vertical resolution seismic images from crosswell data is disclosed. In accordance with one aspect of the disclosure, a set of vertically spaced, generally horizontally extending continuous layers and associated nodes are defined within a region between two boreholes. The specific number of nodes is selected such that the value of a particular characteristic of the subterranean region at each of the nodes is one which can be determined from the seismic data. Once values are established at the nodes, values of the particular characteristic are assigned to positions between the node points of each layer based on the values at node within that layer and without regard to the values at node points within any other layer. A seismic map is produced using the node values and the assigned values therebetween. In accordance with another aspect of the disclosure, an approximate model of the region is established using direct arrival traveltime data. Thereafter, the approximate model is adjusted using reflected arrival data. In accordance with still another aspect of the disclosure, correction is provided for well deviation. An associated technique which provides improvements in ray tracing is also disclosed.

Lazaratos, Spyridon K. (Houston, TX)

1999-12-07T23:59:59.000Z

99

SEISMIC INTERFEROMETRY FOR TEMPORAL MONITORING Norimitsu Nakata  

E-Print Network [OSTI]

SEISMIC INTERFEROMETRY FOR TEMPORAL MONITORING by Norimitsu Nakata #12;c Copyright by Norimitsu Seismic interferometry, where one computes coherency of waves between two or more receivers and averages from the first study related to seismic interferometry (although the name of seismic interferometry has

Snieder, Roel

100

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

Open Energy Info (EERE)

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...

Note: This page contains sample records for the topic "determination seismic stimulation" from the National Library of EnergyBeta (NLEBeta).
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101

Newberry Volcano EGS Demonstration Stimulation Modeling  

SciTech Connect (OSTI)

As a part of Phase I of the Newberry Volcano EGS Demonstration project, several data sets were collected to characterize the rock volume around the well. Fracture, fault, stress, and seismicity data has been collected by borehole televiewer, LiDAR elevation maps, and microseismic monitoring. Well logs and cuttings from the target well (NWG 55-29) and core from a nearby core hole (USGS N-2) have been analyzed to develop geothermal, geochemical, mineralogical and strength models of the rock matrix, altered zones, and fracture fillings (see Osborn et al., this volume). These characterization data sets provide inputs to models used to plan and predict EGS reservoir creation and productivity. One model used is AltaStim, a stochastic fracture and flow software model developed by AltaRock. The software's purpose is to model and visualize EGS stimulation scenarios and provide guidance for final planning. The process of creating an AltaStim model requires synthesis of geologic observations at the well, the modeled stress conditions, and the stimulation plan. Any geomechanical model of an EGS stimulation will require many assumptions and unknowns; thus, the model developed here should not be considered a definitive prediction, but a plausible outcome given reasonable assumptions. AltaStim is a tool for understanding the effect of known constraints, assumptions, and conceptual models on plausible outcomes.

Trenton T. Cladouhos, Matthew Clyne, Maisie Nichols,; Susan Petty, William L. Osborn, Laura Nofziger

2011-10-23T23:59:59.000Z

102

Seismic and infrasonic source processes in volcanic fluid systems  

E-Print Network [OSTI]

A broadband seismic and infrasound array deployment at MountNumerical experiments . . . . . . . .1. Seismic- acousticFigure 3.2: Infrasonic and seismic waveforms at CDWR for an

Matoza, Robin S.

2009-01-01T23:59:59.000Z

103

Seismic design, testing and analysis of reinforced concrete wall buildings  

E-Print Network [OSTI]

and Priestley M.J.N. (1992). “Seismic Design of Reinforced2007). “Displacement Based Seismic Design of Structures”.318-99 Provisions for Seismic Design of Structural Walls.

Panagiotou, Marios

2008-01-01T23:59:59.000Z

104

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

105

Annual Hanford Seismic Report for Fiscal Year 2008  

SciTech Connect (OSTI)

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 communi¬cations procedures. The event is not considered to be significant with regard to site safety and not unprecedented given the site’s 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

106

Frequent-Interval Seismic CPTu  

Broader source: Energy.gov (indexed) [DOE]

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

107

How to Remedy Non-optimal Seismic Data by Seismic Processing  

Science Journals Connector (OSTI)

—Seismic data processing mostly takes into account the ... be done by subtractive coherency filtering. Multiple seismic reflections also can be suppressed by this...

J. Fertig; M. Thomas; R. Thomas

1999-09-01T23:59:59.000Z

108

Down hole periodic seismic generator  

DOE Patents [OSTI]

A down hole periodic seismic generator system 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, Harry C. (Albuquerque, NM); Hills, Richard G. (Las Cruces, NM); Striker, Richard P. (Albuquerque, NM)

1989-01-01T23:59:59.000Z

109

Advanced downhole periodic seismic generator  

DOE Patents [OSTI]

An advanced downhole periodic seismic generator system 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, Harry C. (Albuquerque, NM); Hills, Richard G. (Las Cruces, NM); Striker, Richard P. (Albuquerque, NM)

1991-07-16T23:59:59.000Z

110

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,

111

Effect of Corrosion on the Seismic Response of a Single-Bent, Reinforced Concrete Bridge  

E-Print Network [OSTI]

The effect of corrosion on a single-bent, reinforced concrete (RC) bridge subject to seismic loading is the primary focus of this research. This work attempts to determine the effects of decreasing rebar diameter and concrete cover spalling...

Harvat, Jessica

2010-07-14T23:59:59.000Z

112

A new seismic probe for coal seam hazard detection  

SciTech Connect (OSTI)

An experimental hole-to-hole seismic probe system has been developed for use in coal measure geology as a means of determining the structural conditions of coal seams. The source probe produces a 500-joule electric arc discharge whose seismic wavelet has a spectrum in the 200 to 2,000 Hz frequency range. Low compliance hydrophones contained in the source probe as well as in a separate seismic detector probe are matched to the frequency range of the source. Both probes are constructed with 5.72 cm diameter housings. The transducers in the probes are equipped with fluid-inflatable boots to permit operation in either wet or dry boreholes. Preliminary tests in vertical boreholes drilled 213 m apart in sedimentary rock formations show reliable operation and useful seismic propagation measurements along horizontal and oblique paths up to 232 m in length. Because the seismic wavelet has an accurately repeatable waveshape, multiple shots and signal averaging techniques can be used to enhance the signal-to-noise ratio and extend the transmission distances.

Peters, W.R.; Owen, T.E.; Thill, R.E.

1985-01-01T23:59:59.000Z

113

Delineation of a coal burn edge with seismic refraction  

SciTech Connect (OSTI)

Coal seams in many areas of western United States have ignited and burned for considerable distances underground. The boundary between the coal and clinker needs to be defined for determination of reserves. Field tests of a seismic refraction method were conducted at Kerr-McGee Coal Corp's open pit Clovis Point mine near Gillette, Wyoming. Explosive sources were detonated in shot holes in the pit floor. Geophone lines, laid on the surface beyond the edge of the pit, crossed from an area of known coal to an area of clinker. Delays in arrival times correlated with the expected beginning of the clinker zone. Waves passing through the clinker also exhibit a significant attenuation. A magnetic survey concluded along the seismic lines showed anomalies in the regions where seismic data indicated the burn edge.

Sontag, K.D.; Wolfe, P.J.

1984-05-01T23:59:59.000Z

114

Interactive seismic facies classification using textural attributes and neural networks  

Science Journals Connector (OSTI)

...between seismic data, seismic facies, environment of deposition (EOD), and rock property relationships. Here, typical deepwater...between seismic data, seismic facies, environment of deposition (EOD), and rock property relationships. Here, typical deepwater...

Brian P. West; Steve R. May; John E. Eastwood; Christine Rossen

115

Aromatics, Narcotics, Stimulants, Spices  

Science Journals Connector (OSTI)

This rather heterogeneous chapter includes native psycho-active plants and aromatics, as well as industrially highly developed stimulants and spices. We have refrained from discussing the many drugs and halluc...

Prof. Dr. Heinz Brücher

1989-01-01T23:59:59.000Z

116

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)

117

One?dimensional Seismic Analysis of a Solid?Waste Landfill  

Science Journals Connector (OSTI)

Analysis of the seismic performance of solid waste landfill follows generally the same procedures for the design of embankment dams even if the methods and safety requirements should be different. The characterization of waste properties for seismic design is difficult due the heterogeneity of the material requiring the procurement of large samples. The dynamic characteristics of solid waste materials play an important role on the seismic response of landfill and it also is important to assess the dynamic shear strengths of liner materials due the effect of inertial forces in the refuse mass. In the paper the numerical results of a dynamic analysis are reported and analysed to determine the reliability of the common practice of using 1D analysis to evaluate the seismic response of a municipal solid?waste landfill. Numerical results indicate that the seismic response of a landfill can vary significantly due to reasonable variations of waste properties fill heights site conditions and design rock motions.

Francesco Castelli; Valentina Lentini; Michele Maugeri

2008-01-01T23:59:59.000Z

118

How can Seismics, Especially Active, Assist in Geothermal Energy Utilization  

Science Journals Connector (OSTI)

Thus, many possibilities exist where seismics, especially active seismics, may be helpful in the utilization of geothermal energy.

Th. Krey

1980-01-01T23:59:59.000Z

119

Seismic signatures of the Lodgepole fractured reservoir in Utah-Wyoming overthrust belt  

SciTech Connect (OSTI)

In low porosity, low permeability zones, natural fractures are the primary source of permeability which affect both production and injection of fluids. The open fractures do not contribute much to porosity, but they provide an increased drainage network to any porosity. An important approach to characterizing the fracture orientation and fracture permeability of reservoir formations is one based upon the effects of such conditions on the propagation of acoustic and seismic waves in the rock. We present the feasibility of using seismic measurement techniques to map the fracture zones between wells spaced 2400 ft at depths of about 1000 ft. For this purpose we constructed computer models (which include azimuthal anisotropy) using Lodgepole reservoir parameters to predict seismic signatures recorded at the borehole scale, crosswell scale, and 3 D seismic scale. We have integrated well logs with existing 2D surfaces seismic to produce petrophysical and geological cross sections to determine the reservoir parameters and geometry for the computer models. In particular, the model responses are used to evaluate if surface seismic and crosswell seismic measurements can capture the anisotropy due to vertical fractures. Preliminary results suggested that seismic waves transmitted between two wells will propagate in carbonate fracture reservoirs, and the signal can be received above the noise level at the distance of 2400 ft. In addition, the large velocities contrast between the main fracture zone and the underlying unfractured Boundary Ridge Member, suggested that borehole reflection imaging may be appropriate to map and fracture zone thickness variation and fracture distributions in the reservoir.

Parra, J.; Collier, H.; Angstman, B.

1997-08-01T23:59:59.000Z

120

Radiated seismic energy from coda measurements and no scaling in apparent stress with seismic moment  

E-Print Network [OSTI]

Radiated seismic energy from coda measurements and no scaling in apparent stress with seismic energy are consistent with independent measurements, where available. We find no dependence in individual seismic energy from coda measurements and no scaling in apparent stress with seismic moment, J. Geophys

Prieto, Germán A.

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Subsurface imaging with reverse vertical seismic profiles  

E-Print Network [OSTI]

This thesis presents imaging results from a 3D reverse vertical seismic profile (RVSP) dataset measured at a hydrocarbon bearing pinnacle reef in northern Michigan. The study presented many challenges in seismic data ...

Krasovec, Mary L. (Mary Lee), 1972-

2001-01-01T23:59:59.000Z

122

Seismic Attribute Analysis Using Higher Order Statistics  

E-Print Network [OSTI]

Seismic data processing depends on mathematical and statistical tools such as convolution, crosscorrelation and stack that employ second-order statistics (SOS). Seismic signals are non-Gaussian and therefore contain information beyond SOS. One...

Greenidge, Janelle Candice

2009-05-15T23:59:59.000Z

123

Seismic imaging using higher order statistics  

E-Print Network [OSTI]

Improvements in seismic resolution beyond typical seismic wavelength will have significant implications for hydrocarbon exploration and production. Conventional imaging algorithms can be derived as a least squared optimization problem in which...

Srinivasan, Karthik

2012-06-07T23:59:59.000Z

124

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)

125

Seismic active control by neutral networks  

SciTech Connect (OSTI)

A study on the application of artificial neural networks (ANNs) to active structural control under seismic loads is carried out. The structure considered is a single-degree-of-freedom (SDF) system with an active bracing device. The control force is computed by a trained neural network. The feedforward neural network architecture and an adaptive backpropagation training algorithm is used in the study. The neural net is trained to reproduce the function that represents the response-excitation relationship of the SDF system under seismic loads. The input-output training patterns are generated randomly. In the backpropagation training algorithm, the learning rate is determined by ensuring the decrease of the error function at each epoch. The computer program implemented is validated by solving the classification of the XOR problem. Then, the trained ANN is used to compute the control force according to the control strategy. If the control force exceeds the actuator`s capacity limit, it is set equal to that limit. The concept of the control strategy employed herein is to apply the control force at every time step to cancel the system velocity induced at the preceding time step so that the gradual rhythmic buildup of the response is destroyed. The ground motions considered in the numerical example are the 1940 El Centro earthquake and the 1979 Imperial Valley earthquake in California. The system responses with and without the control are calculated and compared. The feasibility and potential of applying ANNs to seismic active control is asserted by the promising results obtained from the numerical examples studied.

Tang, Yu

1995-12-31T23:59:59.000Z

126

Seismic active control by neural networks.  

SciTech Connect (OSTI)

A study on the application of artificial neural networks (ANNs) to activate structural control under seismic loads is carried out. The structure considered is a single-degree-of-freedom (SDF) system with an active bracing device. The control force is computed by a trained neural network. The feed-forward neural network architecture and an adaptive back-propagation training algorithm is used in the study. The neural net is trained to reproduce the function that represents the response-excitation relationship of the SDF system under seismic loads. The input-output training patterns are generated randomly. In the back-propagation training algorithm, the learning rate is determined by ensuring the decrease of the error function at each epoch. The computer program implemented is validated by solving the classification of the XOR problem. Then, the trained ANN is used to compute the control force according to the control strategy. If the control force exceeds the actuator's capacity limit, it is set equal to that limit. The concept of the control strategy employed herein is to apply the control force at every time step to cancel the system velocity induced at the preceding time step so that the gradual rhythmic buildup of the response is destroyed. The ground motions considered in the numerical example are the 1940 El Centro earthquake and the 1979 Imperial Valley earthquake in California. The system responses with and without the control are calculated and compared. The feasibility and potential of applying ANNs to seismic active control is asserted by the promising results obtained from the numerical examples studied.

Tang, Y.

1998-01-01T23:59:59.000Z

127

A Lumped Model for a Seismic Source  

Science Journals Connector (OSTI)

...research-article A Lumped Model for a Seismic Source M. S. Giammarinaro S. Micciancio...parameters are dimensionless and describe: the seismic wave quality factor of the medium (Q...results are: (i) the system exhibits a seismic or an aseismic steady state solution...

1993-01-01T23:59:59.000Z

128

Seismic scattering in the subduction zone of the Middle America region  

E-Print Network [OSTI]

vi 4 Scattering of seismic waves in heterogenousvii 6 Evaluation of seismic scattering usingan alternative seismic network . .

Dominguez, Luis Antonio

2012-01-01T23:59:59.000Z

129

Exploration 3-D Seismic Field Test/Native Tribes Initiative  

SciTech Connect (OSTI)

To determine current acquisition procedures and costs and to further the goals of the President's Initiative for Native Tribes, a seismic-survey project is to be conducted on Osage tribal lands. The goals of the program are to demonstrate the capabilities, costs, and effectiveness of 3-D seismic work in a small-operator setting and to determine the economics of such a survey. For these purposes, typical small-scale independent-operator practices are being followed and a shallow target chose in an area with a high concentration of independent operators. The results will be analyzed in detail to determine if there are improvements and/or innovations which can be easily introduced in field-acquisition procedures, in processing, or in data manipulation and interpretation to further reduce operating costs and to make the system still more active to the small-scale operator.

Carroll, Herbert B.; Chen, K.C.; Guo, Genliang; Johnson, W.I.; Reeves,T.K.; Sharma,Bijon

1999-04-27T23:59:59.000Z

130

Optimal irreversible stimulated emission  

E-Print Network [OSTI]

We studied the dynamics of an initially inverted atom in a semi-infinite waveguide, in the presence of a single propagating photon. We show that atomic relaxation is enhanced by a factor of 2, leading to maximal bunching in the output field. This optimal irreversible stimulated emission is a novel phenomenon that can be observed with state-of-the-art solid-state atoms and waveguides. When the atom interacts with two one-dimensional electromagnetic environments, the preferential emission in the stimulated field can be exploited to efficiently amplify a classical or a quantum state.

D Valente; Y Li; J P Poizat; J M Gerard; L C Kwek; M F Santos; A Auffeves

2012-08-28T23:59:59.000Z

131

Teleseismic-Seismic Monitoring At Coso Geothermal Area (2004) | Open Energy  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis Analyze seismic data to develop reservoir models that characterize the geothermal system Notes Large-amplitude, secondary arrivals are modeled as scattering anomalies. Polarization and ray tracing methods determine the orientation and location of the scattering body. Two models are proposed for the scatterer: (1) a point scatterer located anywhere in a one-dimensional (1-D), layered velocity model; and (2) a dipping interface between two homogeneous half

132

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.

133

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.

134

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.

135

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.

136

Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma  

SciTech Connect (OSTI)

The objective of this project is to demonstrate the impact of downhole vibration stimulation on oil production rates in a mature waterflood field. Oil & Gas Consultants International, Inc. (OGCI) will manage the project in close cooperation with the Osage Tribe as the tests will be conducted in Osage County, Oklahoma, the mineral estate of the Osage Tribe. The field is owned and operated by Calumet Oil Company. Phillips Petroleum Company will contribute their proprietary vibration core analysis of cores recovered from the pilot test area. To achieve the project objectives, the work has been divided into nine tasks, some are concurrent, while other tasks rely on completion of previous steps. The operator, Calumet Oil Company operates several field in Osage County Oklahoma. The North Burbank Unit will be the site of the test. The team will then determine where within the field to optimally locate the vibration test well. With the location determined, the test well will be drilled, cored, logged and 7-inch production casing run and cemented. In a parallel effort, OGCI will be designing, building, and testing a new version of the downhole vibration tool based on their patented and field proven whirling orbital vibrator. With the field test tool built to run in 7-inch casing. Reliability testing of the downhole tool and surface power source will be conducted in nearby field operated by Calumet Oil Company. After the core is recovered, Phillips Petroleum Company will be conducting laboratory tests utilizing their proprietary sonic core apparatus to determine fluid flow response to a range of vibration frequencies. These results, in turn, will allow final adjustments to the frequency generation mechanisms of the downhole vibration tool. One or more offset wells, near to the vibration test well, will be equipped with downhole geophones and or hydro-phones to determine the strength of signal and if the producing formation has a characteristic resonant frequency response. Surface geophones will also be set out and arranged to pick up the signal generated by the downhole vibration tool. The downhole vibrator will be installed in the test well. Monitoring the production and injection for the pilot test area will continue. As the frequency of the downhole tool is changed, the recording of seismic signals, both on the surface and downhole, will also be conducted. The results of the data collection will be a matrix of varying vibration stimulation conditions corresponding to changes in production fluid rates and seismic responses. The report on the results of the downhole vibration stimulation will be prepared and delivered using several venues. Technical papers will be submitted to the Society of Petroleum Engineers. Workshops are planned to be held for operators in Osage County and surrounding areas. A dedicated technical session on vibration stimulation may be offered at the 2002 SPE/DOE/IOR Conference, bringing together the world's experts in this emerging technology. The final task will be to close out the project.

J. Ford Brett; Robert V. Westermark

2001-03-31T23:59:59.000Z

137

Frequent-Interval Seismic CPTu  

Broader source: Energy.gov [DOE]

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

138

Deterministic seismic hazard in Egypt  

Science Journals Connector (OSTI)

......interest are represented by a number of flat layers with different thicknesses, densities...one on sandy soil, the other on the rocky soil in Aqaba) were 0.10 and 0.05...Contract UVO-ROSTE 875.669.9 Seismic safety of urban areas: ground motion modelling......

A. El-Sayed; F. Vaccari; G. F. Panza

2001-03-01T23:59:59.000Z

139

Isolated Stimulator OPERATORS MANUAL  

E-Print Network [OSTI]

started with the Devices Ltd model 2530, then through Mk II, Mk III and Mk IV to the 2533 - all of which of approximately 3pF. The self-contained batteries, without a DC-DC converter, ensure that the stimulator is ultra

Kleinfeld, David

140

Heliostat Stimulator operator's manual  

SciTech Connect (OSTI)

The Heliostat Stimulator is a portable test tool, housed in a suitcase, which can be used to perform the following functions: (1) acceptance testing of newly manufactured Heliostat Controllers (HC) and Heliostat Field Controllers (HFC); (2) aid in the installation and alignment of Heliostats; and (3) provide diagnostic troubleshooting capability in the event of Heliostat failure in the field.

Not Available

1980-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

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

142

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

143

3 D seismic interpretation, reservoir characteristics and petroleum prospects for South Marsh Island OCS Blocks, Gulf of Mexico  

E-Print Network [OSTI]

show great stratigraphic diversity within short distances, making the ability to accurately determine whether sand lenses have been adequately produced or bypassed essential for production opportunities for operators. New 3 D seismic processing...

Duan, Ling

2012-06-07T23:59:59.000Z

144

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

145

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

146

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

147

Seismic Hazard and Public Safety  

E-Print Network [OSTI]

International Seismic Safety Organization (ISSO) has been formed to promote public safety by being prepared for the largest potential events which can happen at any time, rather than for certain probable events which have been exceeded in several recent earthquakes with disastrous consequences. The position of ISSO is available now in English, Italian, Russian, Hebrew, Spanish, and Hindi at http://www.issoquake.org. That position has been misrepresented elsewhere and this short note is to counter such inaccurate viewpoints.

Mualchin, Lalliana

2014-01-01T23:59:59.000Z

148

A seismic signature of river bedload transport during storm events  

E-Print Network [OSTI]

2008), Spectral analysis of seismic noise induced by rivers:analysis of high?frequency seismic noise, J. Geophys. Res. ,and V. Manville (2009), Seismic sig- nals of snow?slurry

Brodsky, Emily E.; Hsu, Leslie; Finnegan, Noah J.

2011-01-01T23:59:59.000Z

149

Performance Based Implementation of Seismic Protective Devices for Structures  

E-Print Network [OSTI]

A.I. , Wu, B. (2012). “Seismic Protection of Nonlinearfor the Evaluation of Seismic Mitigation in BuildingM.H. and Sung, Y.C. (2000). “Seismic Performance of Highway

Xi, Wang

2014-01-01T23:59:59.000Z

150

Nonlinear seismic response analysis of steel-concrete composite frames  

E-Print Network [OSTI]

frame model 10TN (Northridge seismic input) floor 1 floor 2frame model 10TC (Northridge seismic input) Slip (mm) floorframe models 06TC, 10TC and 14TC (Northridge seismic input)

Barbato, Michele

2008-01-01T23:59:59.000Z

151

Infrasound Generation from the HH Seismic Hammer.  

SciTech Connect (OSTI)

The HH Seismic hammer is a large, %22weight-drop%22 source for active source seismic experiments. This system provides a repetitive source that can be stacked for subsurface imaging and exploration studies. Although the seismic hammer was designed for seismological studies it was surmised that it might produce energy in the infrasonic frequency range due to the ground motion generated by the 13 metric ton drop mass. This study demonstrates that the seismic hammer generates a consistent acoustic source that could be used for in-situ sensor characterization, array evaluation and surface-air coupling studies for source characterization.

Jones, Kyle Richard

2014-10-01T23:59:59.000Z

152

LLNL-TR-400563 Seismic Data  

National Nuclear Security Administration (NNSA)

Seismic Data for Evaluation of Ground Motion Hazards in Las Vegas in Support of Test Site Readiness Ground Motion A. Rodgers January 18, 2008 Disclaimer This document was...

153

Leasing and Exploration * Seismic geophysical surveys  

E-Print Network [OSTI]

#12;Leasing and Exploration * Seismic geophysical surveys * Exploratory drilling using various.S. citizens engaged in a specific activity (other than commercial fishing) in a specified geographical region

154

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

5 4.5.2 Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Presentation Number: 022 Investigator: Queen, John (Hi-Q Geophysical Inc.) Objectives: To develop...

155

Mapping Diffuse Seismicity for Geothermal Reservoir Management...  

Broader source: Energy.gov (indexed) [DOE]

Templeton David B. Harris Lawrence Livermore Natl. Lab. Seismicity and Reservoir Fracture Characterization May 18, 2010 This presentation does not contain any proprietary...

156

Hanford Sitewide Probabilistic Seismic Hazard Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

seismic events are typically shallow (for example blasts generated in mines, quarries, and roadcuts; volcanoes; atmospheric phenomena). In the crustal earthquake catalog...

157

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

158

Category:Passive Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

has the following 2 subcategories, out of 2 total. M Micro-Earthquake 1 pages T Teleseismic-Seismic Monitoring 1 pages Pages in category "Passive Seismic...

159

Nonlinear seismic response analysis of steel-concrete composite frames  

E-Print Network [OSTI]

shear connection (Imperial Valley seismic input) Floor #site), and (ii) the 1979 Imperial Valley earthquake recordedFig. 12 relates to the Imperial Valley seismic input. Unless

Barbato, Michele

2008-01-01T23:59:59.000Z

160

Joint inversion of electrical and seismic data for Fracture char...  

Broader source: Energy.gov (indexed) [DOE]

Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems Joint inversion of electrical and seismic data for Fracture char....

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Vertical Seismic Profiling At Rye Patch Area (DOE GTP, 2011)...  

Open Energy Info (EERE)

Vertical Seismic Profiling At Rye Patch Area (DOE GTP, 2011) Exploration Activity Details Location Rye Patch Area Exploration Technique Vertical Seismic Profiling Activity Date...

162

Ultraviolet stimulation of hydrogen peroxide production using...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ultraviolet stimulation of hydrogen peroxide production using aminoindazole, diaminopyridine, and phenylenediamine solid polymer Ultraviolet stimulation of hydrogen peroxide...

163

Seismic pulse propagation with constant Q and stable probability distributions  

E-Print Network [OSTI]

The one-dimensional propagation of seismic waves with constant Q is shown to be governed by an evolution equation of fractional order in time, which interpolates the heat equation and the wave equation. The fundamental solutions for the Cauchy and Signalling problems are expressed in terms of entire functions (of Wright type) in the similarity variable and their behaviours turn out to be intermediate between those for the limiting cases of a perfectly viscous fluid and a perfectly elastic solid. In view of the small dissipation exhibited by the seismic pulses, the nearly elastic limit is considered. Furthermore, the fundamental solutions for the Cauchy and Signalling problems are shown to be related to stable probability distributions with index of stability determined by the order of the fractional time derivative in the evolution equation.

Francesco Mainardi; Massimo Tomirotti

2010-08-07T23:59:59.000Z

164

Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques  

Broader source: Energy.gov [DOE]

Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques Justin Coleman, P.E. October 25th, 2011

165

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

Broader source: Energy.gov (indexed) [DOE]

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

166

E-Print Network 3.0 - acid stimulates clusterin Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Schiff. Renal Function All plasma and urine determinations were per... expression in Vim-- mice, assessed vi- mentin promoter stimulation by ischemia in these animals....

167

Seismic monitoring at The Geysers  

SciTech Connect (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

168

Prediction of Shale Plugs between Wells in Heavy Oil Sands using Seismic Attributes  

SciTech Connect (OSTI)

A fundamental geologic problem in the Steam-Assisted Gravity Drainage (SAGD) heavy oil developments in the McMurray Formation of Northern Alberta is to determine the location of shales in the reservoirs that may interfere with the steaming or recovery process. Petrophysical analysis shows that a key acoustic indicator of the presence of shale is bulk density. In theory, density can be derived from seismic data using Amplitude Versus Offset (AVO) analysis of conventional or multicomponent seismic data, but this is not widely accepted in practice. However, with billions of dollars slated for SAGD developments in the upcoming years, this technology warrants further investigation. In addition, many attributes can be investigated using modern tools like neural networks; so, the density extracted from seismic using AVO can be compared and combined with more conventional attributes in solving this problem. Density AVO attributes are extracted and correlated with 'density synthetics' created from the logs just as the seismic stack correlates to conventional synthetics. However, multiattribute tests show that more than density is required to best predict the volume proportion of shale (Vsh). Vsh estimates are generated by passing seismic attributes derived from conventional PP, and multicomponent PS seismic, AVO and inversion from an arbitrary line following the pilot SAGD wells through a neural network. This estimate shows good correlation to shale proportions estimated from core. The results have encouraged the application of the method to the entire 3D.

Gray, F. David [Veritas DGC, Inc., 2200 (Canada); Anderson, Paul F. [Apache Canada Ltd. (Canada); Gunderson, Jay A. [Veritas DGC, Inc., 2200 (Canada)

2006-06-15T23:59:59.000Z

169

Development of Simplified Probabilistic Risk Assessment Model for Seismic Initiating Event  

SciTech Connect (OSTI)

ABSTRACT This paper discusses a simplified method to evaluate seismic risk using a methodology built on dividing the seismic intensity spectrum into multiple discrete bins. The seismic probabilistic risk assessment model uses Nuclear Regulatory Commission’s (NRC’s) full power Standardized Plant Analysis Risk (SPAR) model as the starting point for development. The seismic PRA models are integrated with their respective internal events at-power SPAR model. This is accomplished by combining the modified system fault trees from the full power SPAR model with seismic event tree logic. The peak ground acceleration is divided into five bins. The g-value for each bin is estimated using the geometric mean of lower and upper values of that particular bin and the associated frequency for each bin is estimated by taking the difference between upper and lower values of that bin. The component’s fragilities are calculated for each bin using the plant data, if available, or generic values of median peak ground acceleration and uncertainty values for the components. For human reliability analysis (HRA), the SPAR HRA (SPAR-H) method is used which requires the analysts to complete relatively straight forward worksheets that include the performance shaping factors (PSFs). The results are then used to estimate human error probabilities (HEPs) of interest. This work is expected to improve the NRC’s ability to include seismic hazards in risk assessments for operational events in support of the reactor oversight program (e.g., significance determination process).

S. Khericha; R. Buell; S. Sancaktar; M. Gonzalez; F. Ferrante

2012-06-01T23:59:59.000Z

170

Newberry EGS Seismic Velocity Model  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

We use ambient noise correlation (ANC) to create a detailed image of the subsurface seismic velocity at the Newberry EGS site down to 5 km. We collected continuous data for the 22 stations in the Newberry network, together with 12 additional stations from the nearby CC, UO and UW networks. The data were instrument corrected, whitened and converted to single bit traces before cross correlation according to the methodology in Benson (2007). There are 231 unique paths connecting the 22 stations of the Newberry network. The additional networks extended that to 402 unique paths crossing beneath the Newberry site.

Dennise Templeton

171

Newberry EGS Seismic Velocity Model  

SciTech Connect (OSTI)

We use ambient noise correlation (ANC) to create a detailed image of the subsurface seismic velocity at the Newberry EGS site down to 5 km. We collected continuous data for the 22 stations in the Newberry network, together with 12 additional stations from the nearby CC, UO and UW networks. The data were instrument corrected, whitened and converted to single bit traces before cross correlation according to the methodology in Benson (2007). There are 231 unique paths connecting the 22 stations of the Newberry network. The additional networks extended that to 402 unique paths crossing beneath the Newberry site.

Dennise Templeton

2013-10-01T23:59:59.000Z

172

Seismicity in Azerbaijan and Adjacent Caspian Sea  

SciTech Connect (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

173

CX-009162: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

62: Categorical Exclusion Determination 62: Categorical Exclusion Determination CX-009162: Categorical Exclusion Determination Development of a Low Cost Method to Estimate the Seismic Signature of a Geothermal Field from Ambient Seismic Noise Analysis CX(s) Applied: A9, B3.1 Date: 09/11/2012 Location(s): Nevada Offices(s): Golden Field Office Board of Regents, NSHE, obo University of Nevada, Reno would utilize DOE and cost share funds to research cost-effective characterization of geothermal reservoir properties from which drilling targets would be identified by utilizing existing and newly acquired seismic survey data to test and validate a cost-effective, non-invasive, seismic exploration method based on seismic interferometry. CX-009162.pdf More Documents & Publications CX-000267: Categorical Exclusion Determination

174

Annual Hanford Seismic Report for Fiscal Year 2009  

SciTech Connect (OSTI)

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

175

Caucasus Seismic Information Network: Data and Analysis Final Report  

SciTech Connect (OSTI)

The geology and tectonics of the Caucasus region (Armenia, Azerbaijan, and Georgia) are highly variable. Consequently, generating a structural model and characterizing seismic wave propagation in the region require data from local seismic networks. As of eight years ago, there was only one broadband digital station operating in the region – an IRIS station at Garni, Armenia – and few analog stations. The Caucasus Seismic Information Network (CauSIN) project is part of a nulti-national effort to build a knowledge base of seismicity and tectonics in the region. During this project, three major tasks were completed: 1) collection of seismic data, both in event catalogus and phase arrival time picks; 2) development of a 3-D P-wave velocity model of the region obtained through crustal tomography; 3) advances in geological and tectonic models of the region. The first two tasks are interrelated. A large suite of historical and recent seismic data were collected for the Caucasus. These data were mainly analog prior to 2000, and more recently, in Georgia and Azerbaijan, the data are digital. Based on the most reliable data from regional networks, a crustal model was developed using 3-D tomographic inversion. The results of the inversion are presented, and the supporting seismic data are reported. The third task was carried out on several fronts. Geologically, the goal of obtaining an integrated geological map of the Caucasus on a scale of 1:500,000 was initiated. The map for Georgia has been completed. This map serves as a guide for the final incorporation of the data from Armenia and Azerbaijan. Description of the geological units across borders has been worked out and formation boundaries across borders have been agreed upon. Currently, Armenia and Azerbaijan are working with scientists in Georgia to complete this task. The successful integration of the geologic data also required addressing and mapping active faults throughout the greater Caucasus. Each of the major faults in the region were identified and the probability of motion were assessed. Using field data and seismicity, the relative activity on each of these faults was determined. Furthermore, the sense of motion along the faults was refined using GPS, fault plane solutions, and detailed field studies. During the course of the integration of the active fault data, the existence of the proposed strike slip Borjomi-Kazbeki fault was brought into question. Although it had been incorporated in many active tectonic models over the past decade, field geologists and geophysicists in Georgia questioned its existence. Detailed field studies were carried out to determine the existence of the fault and estimate the slip along it; and it was found that the fault zone did not exist. Therefore, the convergence rate in the greater Caucasus must be reinterpreted in terms of thrust mechanisms, instead of strike-slip on the Borjomi-Kazbeki fault zone.

Randolph Martin; Mary Krasovec; Spring Romer; Timothy O'Connor; Emanuel G. Bombolakis; Youshun Sun; Nafi Toksoz

2007-02-22T23:59:59.000Z

176

Three-Dimensional Seismic Imaging of the Ryepatch Geothermal Reservoir  

E-Print Network [OSTI]

hydrothermal al- teration would combine to reduce the effectiveness of standard 3-D seismic processing.

Feighner, Mark A.

2010-01-01T23:59:59.000Z

177

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring At Coso Geothermal Teleseismic-Seismic Monitoring At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis Determine extent of low velocity body Notes An area showing approximately 0.2-s excess travel time that migrates with changing source azimuth, suggesting that the area is the 'delay shadow' produced by a deep, low-velocity body. Inversion of the relative residual data for three-dimensional velocity structure determines the lateral variations in velocity to a depth of 22.5 km beneath the array. An intense low-velocity body, which coincides with the surface expressions of late Pleistocene rhyolitic volcanism, high heat flow, and hydrothermal activity,

178

FRACTURE STIMULATION IN ENHANCED GEOTHERMAL  

E-Print Network [OSTI]

FRACTURE STIMULATION IN ENHANCED GEOTHERMAL SYSTEMS A REPORT SUBMITTED TO THE DEPARTMENT OF ENERGY of stimulation is induced shear on preexisting fractures, which increases their transmissibility by orders of magnitude. The processes that create fractured rock are discussed from the perspective of geology and rock

Stanford University

179

The effect of seismic waves on earthquake nucleation and fault strength  

E-Print Network [OSTI]

Great Earthquakes and Global Seismic Networks, Seismologicaland D. C. Agnew (2006), Seismic waves increase permeability,Great Earthquakes and Global Seismic Networks, Seismological

van der Elst, Nicholas

2012-01-01T23:59:59.000Z

180

Seismic Performance of Reinforced Concrete Bridges Allowed to Uplift During Multi-Directional Excitation  

E-Print Network [OSTI]

Abghari, A. (1999). “Seismic Soil-Pile Structure InteractionNo. 9. Caltrans (2004). Seismic Design Criteria, Versionand Mander, J. (1994). Seismic energy-based fatigue damage

Espinoza, Andres Oscar

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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 Performance, Modeling, and Failure Assessment of Reinforced Concrete Shear Wall Buildings  

E-Print Network [OSTI]

T. Y. , and Moehle, J.P. , “Seismic safety evaluation of theEffective Stiffness for Seismic Analysis,” ACI Journal ofResearch/ California seismic safety commission, The

Tuna, Zeynep

2012-01-01T23:59:59.000Z

182

Seismic bridge response modification due to degradation of viscous dampers performance  

E-Print Network [OSTI]

Soong, & Mahamoodi. (1989). Seismic responce of steel frameUMCE 01/1987). Elastic seismic response of buildings withanalytical investigation of seismic response of structures

Graziotti, Francesco

2010-01-01T23:59:59.000Z

183

Borehole Seismic Monitoring at Otway Using the Naylor-1 Instrument String  

E-Print Network [OSTI]

LBNL-2337E Borehole Seismic Monitoring at Otway Using thefor performing three distinct seismic measurements, hightime (HRTT), walkaway vertical seismic profiling (WVSP), and

Daley, T.M.

2010-01-01T23:59:59.000Z

184

Seismic Deployments and Experiments: PeruNet, GeoNet, and SeismoPhone.  

E-Print Network [OSTI]

Networked Sensing Seismic Deployments and Experiments:PeruNet: Installing a UCLA seismic line in Latin Americadata quality controll •Seismic tomography to reveal slab

2009-01-01T23:59:59.000Z

185

The Seismic response of precast segmental bridge superstructures with bonded tendons  

E-Print Network [OSTI]

31 2.4. Current Seismic Design Practice inS.H. , and Seible, F. , “Seismic Performance of Precastand Commentary for the Seismic Rehabilitation of Buildings”,

Veletzos, Marc John

2007-01-01T23:59:59.000Z

186

Seismic and Acoustic Investigations of Rock Fall Initiation, Processes, and Mechanics  

E-Print Network [OSTI]

and  Senfaute  G.  (2005).  Seismic  precursory  patterns  F.    (2010).    The  seismic  signature  of  rockslides:  statistical  analysis  of  seismic  signals.  Journal  of  

Zimmer, Valerie Louise

2011-01-01T23:59:59.000Z

187

Acoustic and seismic measurement of ice processes  

Science Journals Connector (OSTI)

As sea ice responds to environmental forcing it deforms leading to the storage of strain energy. When mechanical failure occurs most of this energy is dissipated through fracturing but a small portion radiates as seismic and acoustic waves. These waves provide useful signals for sensing the failure process in the ice. In a recent ice mechanics experiment conducted north of Prudhoe Bay (SIMI ’94) a large number of ice failure events were observed using geophone and hydrophone arrays. Preliminary results are presented including a large?scale tensile fracture test and naturally occurring sounds near a closing lead. For the artificial fracture the acoustic signals allow determination of cracking rate fracture advance and crack propagation velocities. The overall crack propagation speed is estimated to be of order 50 m?s?1; maximum cracking activities occur prior to peak loading. In the second data set the naturally occurring stick?slip process was observed as two ice sheets moved against each other in a closing lead. A wide range of frequencies can occur simultaneously representing different components of the sliding and slipping mechanisms.

David M. Farmer; Yunbo Xie

1995-01-01T23:59:59.000Z

188

Hanford Sitewide Probabilistic Seismic Hazard Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4.4). In support of this model, Pratt (2012) presented a depth-migrated seismic reflection profile across the Saddle Mountain anticline with the interpretation of a moderately...

189

Study of induced seismicity for reservoir characterization  

E-Print Network [OSTI]

The main goal of the thesis is to characterize the attributes of conventional and unconventional reservoirs through passive seismicity. The dissertation is comprised of the development and applications of three new methods, ...

Li, Junlun, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

190

4-D seismic technologies: intersurvey calibration  

E-Print Network [OSTI]

seismic data sets at different times in the production life of a reservoir, calibrating, then comparing the data sets and interpreting intersurvey differences in terms of fluid change or movement. In practice 4-D (time-lapse) analysis is typically...

Kelley, Jeffrey Paul

2012-06-07T23:59:59.000Z

191

The evolution of shallow seismic exploration methods  

E-Print Network [OSTI]

Near-surface seismic methods have developed considerably and have been applied much more widely since the 1970s. Improvements in instrumentation, along with cheaper computer power, have greatly affected the capabilities of these methods in recent...

Steeples, Don W.; Schmeissner, Chris M.; Macy, Brian

1995-07-01T23:59:59.000Z

192

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

193

Estimating Oceanic Turbulence Dissipation from Seismic Images  

Science Journals Connector (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

2013-08-01T23:59:59.000Z

194

Stormwater Pollution Prevention Plan Seismic Phase II  

E-Print Network [OSTI]

Stormwater Pollution Prevention Plan Seismic Phase II Prepared by: Environment, Health and Safety Division Environmental Services Group May 2010 Revision 1 Ernest Orlando Lawrence Berkeley National ..................................................................................................................... 15 2.1.1 Demolition of Building 25/25B

195

Probabilistic seismic hazard maps for Panama  

Science Journals Connector (OSTI)

Probabilistic seismic hazard maps in term of Modified Mercalli (MM) intensity are derived by applying the ‘Cornell-McGuire’ method to four earthquake source zones in Panama and adjacent areas. The maps contain es...

Aristoteles Vergara Muñoz

1991-01-01T23:59:59.000Z

196

Reservoir fracture characterizations from seismic scattered waves  

E-Print Network [OSTI]

The measurements of fracture parameters, such as fracture orientation, fracture density and fracture compliance, in a reservoir is very important for field development and exploration. Traditional seismic methods for ...

Fang, Xinding

2012-01-01T23:59:59.000Z

197

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 provided. 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 off an existing downhole tool, thereby a torsional seismic source is established. Horizontal waves are transferred to the surrounding bore hole medium through downhole clamping.

Hardee, Harry C. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

198

The crustal structure of Carnegie Ridge inferred from gravity and seismic data  

E-Print Network [OSTI]

to ridge transects along which wide-angle refraction seismic experiments have been conducted. In this study, the long-wavelength crustal structure of Carnegie Ridge between ~81?? W and 89?? W was determined by employing 2-D forward gravity modeling...

De La Torre, Giorgio Michele

2005-08-29T23:59:59.000Z

199

Analysis of Geothermal Reservoir Stimulation Using Geomechanics...  

Broader source: Energy.gov (indexed) [DOE]

System (EGS) Reservoir; 2010 Geothermal Technology Program Peer Review Report Seismic Fracture Characterization Methods for Enhanced Geothermal Systems; 2010 Geothermal Technology...

200

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

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Magnetically stimulated fluid flow patterns  

ScienceCinema (OSTI)

Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

Martin, Jim; Solis, Kyle

2014-08-06T23:59:59.000Z

202

Demultiplexer circuit for neural stimulation  

DOE Patents [OSTI]

A demultiplexer circuit is disclosed which can be used with a conventional neural stimulator to extend the number of electrodes which can be activated. The demultiplexer circuit, which is formed on a semiconductor substrate containing a power supply that provides all the dc electrical power for operation of the circuit, includes digital latches that receive and store addressing information from the neural stimulator one bit at a time. This addressing information is used to program one or more 1:2.sup.N demultiplexers in the demultiplexer circuit which then route neural stimulation signals from the neural stimulator to an electrode array which is connected to the outputs of the 1:2.sup.N demultiplexer. The demultiplexer circuit allows the number of individual electrodes in the electrode array to be increased by a factor of 2.sup.N with N generally being in a range of 2-4.

Wessendorf, Kurt O; Okandan, Murat; Pearson, Sean

2012-10-09T23:59:59.000Z

203

Analysis of Geothermal Reservoir Stimulation using Geomechanics...  

Broader source: Energy.gov (indexed) [DOE]

costs - Permeable zones have to be created by stimulation, a process that involves fracture initiation andor activation of discontinuities - Rock stimulation is often...

204

Update From the OEER Association on Research Findings Associated With the Assessment of the Impacts of Seismic Exploration on Marine Invertebrates  

Science Journals Connector (OSTI)

Nova Scotia has a rich fishing tradition and a more recent petroleum industry ... , and evidence to determine potential impacts of seismic energy on marine invertebrates. In September 2007 ... more than 40 stakeh...

Jennifer M. Matthews

2012-01-01T23:59:59.000Z

205

Electrical stimulation of beef carcasses  

E-Print Network [OSTI]

and S. ouifer, 1978; Hs. llund and Bendall, 1965). The results from this research suggest that elect. "ical stimulation in- creases the rate of postmortem pH decline and hastens the onset of rigor mortis, a. s well as improving some of the pal...- atability characteristics (particularly tenderness). The mechanism by whicn electrical stimulation imprcves tendezness is no+ well understood. It has 'oeen suggested +nat rapid postmortem glycolysis hastens the onset of rigor mortis, and thus reduces...

McKeith, Floyd Kenneth

2012-06-07T23:59:59.000Z

206

CX-009846: Categorical Exclusion Determination | Department of...  

Broader source: Energy.gov (indexed) [DOE]

Evaluation of existing procedures and development of new methods for determination of the porosity and permeability of shales in the presence of reservoir fluids, stimulation...

207

Risk management considerations for seismic upgrading of an older facility for short-term residue stabilization  

SciTech Connect (OSTI)

Building 707 and its addition, Building 707A, were selected, after the production mission of Rocky Flats was terminated a few years ago, to stabilize many of the plutonium residues remaining at the site by 2002. The facility had undergone substantial safety improvements to its safety systems and conduct of operations for resumption of plutonium operations in the early 1990s and appeared ideally suited for this new mission to support accelerated Site closure. During development of a new authorization basis, a seismic evaluation was performed. This evaluation addressed an unanalyzed expansion joint and suspect connection details for the precast concrete tilt-up construction and concluded that the seismic capacity of the facility is less than half of that determined by previous analysis. Further, potential seismic interaction was identified between a collapsing Building 707 and the seismically upgraded Building 707A, possibly causing the partial collapse of the latter. Both the operating contractor and the Department of Energy sought a sound technical basis for deciding how to proceed. This paper addresses the risks of the as-is facility and possible benefits of upgrades to support a decision on whether to upgrade the seismic capacity of Building 707, accept the risk of the as-is facility for its short remaining mission, or relocate critical stabilization missions. The paper also addresses the Department of Energy`s policy on natural phenomena.

Additon, S.L.; Peregoy, W.L. [TENERA Rocky Flats, LLC, Golden, CO (United States); Foppe, T.L. [Foppe and Associates, Inc., Golden, CO (United States)

1999-06-01T23:59:59.000Z

208

Time-dependent seismic tomography and its application to the Coso  

Open Energy Info (EERE)

and its application to the Coso and its application to the Coso geothermal area, 1996-2006 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Time-dependent seismic tomography and its application to the Coso geothermal area, 1996-2006 Details Activities (1) Areas (1) Regions (0) Abstract: Measurements of temporal changes in Earth structure are commonly determined using local earthquake tomography computer programs that invert multiple seismic-wave arrival time data sets separately and assume that any differences in the structural results arise from real temporal variations. This assumption is dangerous because the results of repeated tomography experiments would differ even if the structure did not change, simply because of variation in the seismic ray distribution caused by the natural

209

Spatial and temporal constancy of seismic strain release along an evolving segment of the Pacific–North America plate boundary  

Science Journals Connector (OSTI)

Three new slip rates from the Death Valley–Fish Lake Valley (DVFLV) fault contribute to an exceptionally detailed record of lateral rate variations on this 300-km-long system. From south to north, these three new sites are: South Mud Canyon, Cucomongo Canyon, and Indian Creek. Slip rates were determined by combining offsets measured with 1-m-resolution airborne lidar data with 10Be cosmogenic nuclide surface exposure and optically stimulated luminescence ages from displaced alluvial fans. The offset fans date to 17.4 ± 2.3 ka at South Mud Canyon, 39 ± 3 ka at Cucomongo Canyon, and 6.3 ± 1.8 ka at Indian Creek, yielding slip rates of 2.1 + 0.5/?0.4 mm/yr, 6.1 + 1.3/?1.0 mm/yr and 2.2 + 0.8/?0.6 mm/yr, respectively. At Indian Creek, the Holocene (~ 6 ka) and late Quaternary (~ 70 ka) slip rates are the same, within uncertainty, suggesting temporal constancy of seismic strain release along the northern DVFLV fault zone over these time spans. When combined with slip rates determined in earlier companion studies, these results show that the late Quaternary slip rate decreases northward and southward from the central part of the fault, as slip is transferred onto north-trending zones of distributed normal faulting towards the northeast and southwest of the central zone of rapid deformation. This complex pattern of strain accommodation may reflect structural evolution towards a straighter, structurally simpler zone of dextral shear that locally utilizes well-established dextral faults that are linked where necessary by nascent zones of deformation. Summation of the rates of all major faults in the eastern California shear zone (ECSZ) at the 37°N latitude of Red Wall Canyon in northern Death Valley shows that the cumulative geologic rate of ~ 8.5–10 mm/yr is indistinguishable from the ~ 9 mm/yr geodetic rate. Although the cumulative rate on the major faults of the ECSZ is slower to the north and south, this probably reflects more distributed deformation in these areas, rather than transient strain accumulation. These results demonstrate the importance of obtaining multiple slip rates to effectively document the behavior of any fault system, especially in studies of seismic hazard assessment and comparisons of geologic and geodetic rate data.

Kurt L. Frankel; James F. Dolan; Lewis A. Owen; Plamen Ganev; Robert C. Finkel

2011-01-01T23:59:59.000Z

210

Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Location of seismic lines carried out under DOE funded project Advanced Seismic Data Analysis Program (The Hot Pot Project).

Lane, Michael

211

Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010  

SciTech Connect (OSTI)

Location of seismic lines carried out under DOE funded project Advanced Seismic Data Analysis Program (The Hot Pot Project).

Michael Lane

2012-01-01T23:59:59.000Z

212

Crosswell seismic study in a seismically poor data area  

SciTech Connect (OSTI)

Crosswell traveltime tomography and reflection imaging assisted a reservoir characterization effort in an area of poor-quality surface seismic data. Both the tomogram and the reflection image proved useful in the description of the fractured reservoir interval. The velocity tomogram shows that: (1) the vertical resolution was sufficient to identify and characterize a 50-ft (15 m) thick lithological unit of brittle rocks, which was the most important interval for the characterization of this fractured reservoir; (2) different lithological units present sufficient velocity contrast to be identifiable on the tomogram; and (3) the tomogram velocity is higher than the sonic velocity implying that the rocks in the interwell area may be anisotropic. Correlation of the lithologies with the tomogram implies that the major controlling factor of the anisotropy is the shale content in the formation. The crosswell reflection image, generated by a VSP-CDP mapping technique defines the fractured reservoir interval in terms of high-frequency reflections. The lateral resolution of this reflection image is difficult to define because the survey coverage is nonuniform as a result of the receiver spacing being much larger than the source spacing. The dips of the reflections do not quite agree with the dips that are inferred from well log ties. The authors believe this disagreement is a result of the anisotropy of the medium and the use of an isotropic imaging algorithm. Improved data acquisition (finer spatial sampling) that would allow better wavefield separation techniques to be used would probably have produced higher quality crosswell reflection images.

Lee, D.S.; Walden, A.F. [Unocal Corp., Brea, CA (United States)] [Unocal Corp., Brea, CA (United States); Lazaratos, S.K. [Tomoseis Inc., Houston, TX (United States)] [Tomoseis Inc., Houston, TX (United States)

1995-05-01T23:59:59.000Z

213

Method for identifying subsurface fluid migration and drainage pathways in and among oil and gas reservoirs using 3-D and 4-D seismic imaging  

DOE Patents [OSTI]

The invention utilizes 3-D and 4-D seismic surveys as a means of deriving information useful in petroleum exploration and reservoir management. The methods use both single seismic surveys (3-D) and multiple seismic surveys separated in time (4-D) of a region of interest to determine large scale migration pathways within sedimentary basins, and fine scale drainage structure and oil-water-gas regions within individual petroleum producing reservoirs. Such structure is identified using pattern recognition tools which define the regions of interest. The 4-D seismic data sets may be used for data completion for large scale structure where time intervals between surveys do not allow for dynamic evolution. The 4-D seismic data sets also may be used to find variations over time of small scale structure within individual reservoirs which may be used to identify petroleum drainage pathways, oil-water-gas regions and, hence, attractive drilling targets. After spatial orientation, and amplitude and frequency matching of the multiple seismic data sets, High Amplitude Event (HAE) regions consistent with the presence of petroleum are identified using seismic attribute analysis. High Amplitude Regions are grown and interconnected to establish plumbing networks on the large scale and reservoir structure on the small scale. Small scale variations over time between seismic surveys within individual reservoirs are identified and used to identify drainage patterns and bypassed petroleum to be recovered. The location of such drainage patterns and bypassed petroleum may be used to site wells.

Anderson, Roger N. (New York, NY); Boulanger, Albert (New York, NY); Bagdonas, Edward P. (Brookline, MA); Xu, Liqing (New Milford, NJ); He, Wei (New Milford, NJ)

1996-01-01T23:59:59.000Z

214

Method for identifying subsurface fluid migration and drainage pathways in and among oil and gas reservoirs using 3-D and 4-D seismic imaging  

DOE Patents [OSTI]

The invention utilizes 3-D and 4-D seismic surveys as a means of deriving information useful in petroleum exploration and reservoir management. The methods use both single seismic surveys (3-D) and multiple seismic surveys separated in time (4-D) of a region of interest to determine large scale migration pathways within sedimentary basins, and fine scale drainage structure and oil-water-gas regions within individual petroleum producing reservoirs. Such structure is identified using pattern recognition tools which define the regions of interest. The 4-D seismic data sets may be used for data completion for large scale structure where time intervals between surveys do not allow for dynamic evolution. The 4-D seismic data sets also may be used to find variations over time of small scale structure within individual reservoirs which may be used to identify petroleum drainage pathways, oil-water-gas regions and, hence, attractive drilling targets. After spatial orientation, and amplitude and frequency matching of the multiple seismic data sets, High Amplitude Event (HAE) regions consistent with the presence of petroleum are identified using seismic attribute analysis. High Amplitude Regions are grown and interconnected to establish plumbing networks on the large scale and reservoir structure on the small scale. Small scale variations over time between seismic surveys within individual reservoirs are identified and used to identify drainage patterns and bypassed petroleum to be recovered. The location of such drainage patterns and bypassed petroleum may be used to site wells. 22 figs.

Anderson, R.N.; Boulanger, A.; Bagdonas, E.P.; Xu, L.; He, W.

1996-12-17T23:59:59.000Z

215

THMC Modeling of EGS Reservoirs ?Continuum through Discontinuum Representations: Capturing Reservoir Stimulation, Evolution and Induced Seismicity  

Broader source: Energy.gov [DOE]

This research will develop a thorough understanding of complex THMC interactions through synthesis, modeling and verification.

216

Using seismic tomography to characterize fracture systems induced by hydraulic fracturing  

SciTech Connect (OSTI)

Microearthquakes induced by hydraulic fracturing have been studied by many investigators to characterize fracture systems created by the fracturing process and to better understand the locations of energy resources in the earth`s subsurface. The pattern of the locations often contains a great deal of information about the fracture system stimulated during the hydraulic fracturing. Seismic tomography has found applications in many areas for characterizing the subsurface of the earth. It is well known that fractures in rock influence both the P and S velocities of the rock. The influence of the fractures is a function of the geometry of the fractures, the apertures and number of fractures, and the presence of fluids in the fractures. In addition, the temporal evolution of the created fracture system can be inferred from the temporal changes in seismic velocity and the pattern of microearthquake locations. Seismic tomography has been used to infer the spatial location of a fracture system in a reservoir that was created by hydraulic fracturing.

Fehler, M.; Rutledge, J.

1995-01-01T23:59:59.000Z

217

Final Scientific Report, Integrated Seismic Event Detection and Location by Advanced Array Processing  

SciTech Connect (OSTI)

In the field of nuclear explosion monitoring, it has become a priority to detect, locate, and identify seismic events down to increasingly small magnitudes. The consideration of smaller seismic events has implications for a reliable monitoring regime. Firstly, the number of events to be considered increases greatly; an exponential increase in naturally occurring seismicity is compounded by large numbers of seismic signals generated by human activity. Secondly, the signals from smaller events become more difficult to detect above the background noise and estimates of parameters required for locating the events may be subject to greater errors. Thirdly, events are likely to be observed by a far smaller number of seismic stations, and the reliability of event detection and location using a very limited set of observations needs to be quantified. For many key seismic stations, detection lists may be dominated by signals from routine industrial explosions which should be ascribed, automatically and with a high level of confidence, to known sources. This means that expensive analyst time is not spent locating routine events from repeating seismic sources and that events from unknown sources, which could be of concern in an explosion monitoring context, are more easily identified and can be examined with due care. We have obtained extensive lists of confirmed seismic events from mining and other artificial sources which have provided an excellent opportunity to assess the quality of existing fully-automatic event bulletins and to guide the development of new techniques for online seismic processing. Comparing the times and locations of confirmed events from sources in Fennoscandia and NW Russia with the corresponding time and location estimates reported in existing automatic bulletins has revealed substantial mislocation errors which preclude a confident association of detected signals with known industrial sources. The causes of the errors are well understood and are primarily the result of spurious identification and incorrect association of phases, and of excessive variability in estimates for the velocity and direction of incoming seismic phases. The mitigation of these causes has led to the development of two complimentary techniques for classifying seismic sources by testing detected signals under mutually exclusive event hypotheses. Both of these techniques require appropriate calibration data from the region to be monitored, and are therefore ideally suited to mining areas or other sites with recurring seismicity. The first such technique is a classification and location algorithm where a template is designed for each site being monitored which defines which phases should be observed, and at which times, for all available regional array stations. For each phase, the variability of measurements (primarily the azimuth and apparent velocity) from previous events is examined and it is determined which processing parameters (array configuration, data window length, frequency band) provide the most stable results. This allows us to define optimal diagnostic tests for subsequent occurrences of the phase in question. The calibration of templates for this project revealed significant results with major implications for seismic processing in both automatic and analyst reviewed contexts: • one or more fixed frequency bands should be chosen for each phase tested for. • the frequency band providing the most stable parameter estimates varies from site to site and a frequency band which provides optimal measurements for one site may give substantially worse measurements for a nearby site. • slowness corrections applied depend strongly on the frequency band chosen. • the frequency band providing the most stable estimates is often neither the band providing the greatest SNR nor the band providing the best array gain. For this reason, the automatic template location estimates provided here are frequently far better than those obtained by analysts. The second technique is that of matched field processing whereby spatial covariance

Kvaerna, T.; Gibbons. S.J.; Ringdal, F; Harris, D.B.

2007-01-30T23:59:59.000Z

218

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

219

S E R I E S SEISMIC ENGINEERING RESEARCH INFRASTRUCTURES  

E-Print Network [OSTI]

civilization documentary, economic, social and even political or spiritual value #12;SEISMIC ENGINEERINGS E R I E S SEISMIC ENGINEERING RESEARCH INFRASTRUCTURES FOR EUROPEAN SYNERGIES COMMISSION of Research Infrastructures in Performance-based Earthquake Engineering Shaking table testing of models

220

Time-lapse seismic monitoring of subsurface fluid flow  

E-Print Network [OSTI]

Time-lapse seismic monitoring repeats 3 D seismic imaging over a reservoir to map fluid movements in a reservoir. During hydrocarbon production, the fluid saturation, pressure, and temperature of a reservoir change, thereby altering the acoustic...

Yuh, Sung H.

2004-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Seismic Fragility Analysis and Loss Estimation for Concrete Structures  

E-Print Network [OSTI]

The main objective of this study is to develop a methodology to assess seismic vulnerability of concrete structures and to estimate direct losses related to structural damage due to future seismic events. This dissertation contains several...

Bai, Jong Wha

2012-02-14T23:59:59.000Z

222

Annual Hanford Seismic Report for Fiscal Year 2004  

SciTech Connect (OSTI)

This report describes seismic activity at and around the Hanford Site during Fiscal Year 2004. It is also the first description of seismic activity during the fourth quarter of FY04.

Hartshorn, Donald C.; Reidel, Steve P.; Rohay, Alan C.

2004-12-07T23:59:59.000Z

223

Three dimensional seismic imaging of the Rye Patch geothermal...  

Open Energy Info (EERE)

seismic imaging of the Rye Patch geothermal reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Three dimensional seismic imaging of the Rye Patch...

224

First Quarter Seismic Report for Fiscal Year 2006  

SciTech Connect (OSTI)

This report describes the earthquake data collected from October 2005 to December 2005 from the Hanford Seismic Network

Rohay, Alan C.; Reidel, Stephen P.; Hartshorn, Donald C.; Sweeney, Mark D.; Clayton, Ray E.

2006-09-01T23:59:59.000Z

225

The Seismic Stratigraphy and Sedimentation along the Ninetyeast Ridge  

E-Print Network [OSTI]

examines the stratigraphy and sediment thickness on the ridge using new seismic data to describe the sedimentary history of NER. More than 3700 km of 2D multichannel seismic reflection profiles were collected along NER at seven sites between 5.5? N............................................................................ 28 Figure 2 Seismic Survey Map of KNOX06RR Site 758 .................................. 29 Figure 3 Total Sediment Thickness Isopach Map of KNOX06RR Site 758 .... 30 Figure 4 Seismic Reflection Profile from KNOX06RR Site 758 .................... 31...

Eisin, Amy Elizabeth

2010-10-12T23:59:59.000Z

226

Seismic constraints on open clusters  

E-Print Network [OSTI]

We derive knowledge on the global and structural parameters of low-mass stars using asteroseismology and taking advantage of the stellar collective behavior within open clusters. We build stellar models and compute the seismic signal expected from main sequence objects in the 0.8-1.6 Msun range. We first evaluate apparent magnitudes and oscillations-induced luminosity fluctuations expected in the Hyades, the Pleiades and the alpha Persei clusters. The closest cluster presents a feasible challenge to observational asteroseismology in the present and near future. We combine seismological and classical computations to address three questions: what can be inferred about 1) mass, 2) composition and 3) extension of outer convection zones of solar analogs in the Hyades. The first issue relies on the strong sensitivity of the large separation to mass. Then large separations and second differences are used to respectively constrain metal and helium fractions in the Hyades.When plotted for several masses, the relation of effective temperature vs large separation is found to be strongly dependent on the metal content. Besides this the second difference main modulation is related to the second ionization of helium.The second difference modulations are also partly due to the discontinuity in stellar stratification at the convective envelope / radiative core transition. They permit direct insight in the stellar structure. We compute acoustic radii of the convective bases for different values of the mixing length theoryparameter alpha_MLT in convection modelling, i.e. different convective efficiency in the superadiabatic layers. For a given effectivetemperature we show that the acoustic radius changes with convection efficiency.

L. Piau; J. Ballot; S. Turck-Chieze

2005-03-07T23:59:59.000Z

227

Exposure to seismic survey alters blue whale acoustic communication  

Science Journals Connector (OSTI)

...research-article Animal behaviour 1001 14 Exposure to seismic survey alters blue whale acoustic communication...their natural functions. Sounds from seismic surveys are intense and have peak frequency...changed their vocal behaviour during a seismic survey that deployed a low-medium power...

2010-01-01T23:59:59.000Z

228

Continuous Seismic Reflexion Profiles in the Red Sea  

Science Journals Connector (OSTI)

...October 1970 research-article Continuous Seismic Reflexion Profiles in the Red Sea J. D. Phillips D. A. Ross Twenty continuous seismic reflexion profiles have been made across...in the deeper axial trough. A strong seismic reflector is observed at depths up to...

1970-01-01T23:59:59.000Z

229

Seismic petrophysics: An applied science for reservoir geophysics  

E-Print Network [OSTI]

Seismic petrophysics: An applied science for reservoir geophysics WAYNE D. PENNINGTON, Michigan a number of seismic attributes, using either prestack or poststack data, or even both in combination's intuition and, per- haps, wishful thinking, as a guide. This short paper introduces a new term "seismic

230

Three-dimensional seismic imaging of a dymanic Earth  

Science Journals Connector (OSTI)

...M. T. Thompson Three-dimensional seismic imaging of a dymanic Earth Lidia Lonergan...UK ( nwhite@esc.cam.ac.uk ) Seismic imaging is the most important tool used...and application of three-dimensional seismic reflection technology. Routinely used...

1999-01-01T23:59:59.000Z

231

Seismic Refraction Shooting in an Area of the Eastern Atlantic  

Science Journals Connector (OSTI)

17 June 1952 research-article Seismic Refraction Shooting in an Area of the...described in this paper a new method of seismic refraction shooting was developed. With...1952002328 Interpretation of results of seismic refraction shooting carried out in the...

1952-01-01T23:59:59.000Z

232

Mechanical tests for validation of seismic isolation elastomer constitutive models  

SciTech Connect (OSTI)

High damping laminated elastomeric bearings are becoming the preferred device for seismic isolation of large buildings and structures, such as nuclear power plants. The key component of these bearings is a filled natural rubber elastomer. This material exhibits nonlinear behavior within the normal design range. The material damping cannot be classified as either viscous or hysteritic, but it seems to fall somewhere in between. This paper describes a series of tests that can be used to characterize the mechanical response of these elastomers. The tests are designed to determine the behavior of the elastomer in the time scale of the earthquake, which is typically from 30 to 60 seconds. The test results provide data for use in determining the material parameters associated with nonlinear constitutive models. 4 refs.

Kulak, R.F.; Hughes, T.H.

1992-01-01T23:59:59.000Z

233

Mechanical tests for validation of seismic isolation elastomer constitutive models  

SciTech Connect (OSTI)

High damping laminated elastomeric bearings are becoming the preferred device for seismic isolation of large buildings and structures, such as nuclear power plants. The key component of these bearings is a filled natural rubber elastomer. This material exhibits nonlinear behavior within the normal design range. The material damping cannot be classified as either viscous or hysteritic, but it seems to fall somewhere in between. This paper describes a series of tests that can be used to characterize the mechanical response of these elastomers. The tests are designed to determine the behavior of the elastomer in the time scale of the earthquake, which is typically from 30 to 60 seconds. The test results provide data for use in determining the material parameters associated with nonlinear constitutive models. 4 refs.

Kulak, R.F.; Hughes, T.H.

1992-05-01T23:59:59.000Z

234

DEMONSTRATION OF NONLINEAR SEISMIC SOIL STRUCTURE INTERACTION AND APPLICABILITY TO NEW SYSTEM FRAGILITY CURVES SEISMIC  

SciTech Connect (OSTI)

Risk calculations should focus on providing best estimate results, and associated insights, for evaluation and decision-making. Specifically, seismic probabilistic risk assessments (SPRAs) are intended to provide best estimates of the various combinations of structural and equipment failures that can lead to a seismic induced core damage event. However, in general this approach has been conservative, and potentially masks other important events (for instance, it wasn’t the seismic motions that caused the Fukushima core melt events, but the tsunami ingress into the facility).

Coleman, Justin [Idaho National Laboratory

2014-09-01T23:59:59.000Z

235

Decision analysis for seismic retrofit of structures  

E-Print Network [OSTI]

aa a dG S fS GS dS ?? =? ? ?? ?? . (2.3) Annualized seismic hazard exceedance curves containing discrete values of () a GS for locations throughout the United States are available from the United States Geological Survey (USGS). These curves.... Applying the method of integration of seismic vulnerability and hazard, EAL can be defined as ()() 0 a aaa S EAL V y S v S dS ? = = ? (3.1) 14 where V denotes the replacement value of a building, the random variable () a yS is the total damage...

Williams, Ryan J.

2009-05-15T23:59:59.000Z

236

Advanced motor driven clamped borehole seismic receiver  

DOE Patents [OSTI]

A borehole seismic tool 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 meter 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, Bruce P. (Sandoval County, NM); Sleefe, Gerard E. (Bernalillo County, NM); Striker, Richard P. (Bernalillo County, NM)

1993-01-01T23:59:59.000Z

237

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

238

Seismic Crystals And Earthquake Shield Application  

E-Print Network [OSTI]

We theoretically demonstrate that earthquake shield made of seismic crystal can damp down surface waves, which are the most destructive type for constructions. In the paper, seismic crystal is introduced in aspect of band gaps (Stop band) and some design concepts for earthquake and tsunami shielding were discussed in theoretical manner. We observed in our FDTD based 2D elastic wave simulations that proposed earthquake shield could provide about 0.5 reductions in magnitude of surface wave on the Richter scale. This reduction rate in magnitude can considerably reduce destructions in the case of earthquake.

B. Baykant Alagoz; Serkan Alagoz

2009-02-09T23:59:59.000Z

239

Seismic Search for Strange Quark Nuggets  

E-Print Network [OSTI]

Bounds on masses and abundances of Strange Quark Nuggets (SQNs) are inferred from a seismic search on Earth. Potential SQN bounds from a possible seismic search on the Moon are reviewed and compared with Earth capabilities. Bounds are derived from the data taken by seismometers implanted on the Moon by the Apollo astronauts. We show that the Apollo data implies that the abundance of SQNs in the region of 10 kg to one ton must be at least an order of magnitude less than would saturate the dark matter in the solar neighborhood.

Eugene T. Herrin; Doris C. Rosenbaum; Vigdor L. Teplitz

2005-05-29T23:59:59.000Z

240

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

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Parametric study of relay seismic capacity  

Science Journals Connector (OSTI)

An evaluation of the existing relay test data base at Brookhaven National Laboratory (BNL) has indicated that the seismic capacity of a relay may depend on various parameters related to the design or the input motion. In order to investigate the effect of these parameters on the seismic fragility level, BNL has conducted a relay test program. Establishing the correlation between the single frequency fragility test input and the corresponding multifrequency response spectrum (TRS) is also an objective of this test program. The testing has been performed at Wyle Laboratories. This paper discusses the methodology used for testing and presents a brief summary of important test results.

K. Bandyopadhyay; C. Hofmayer

1992-01-01T23:59:59.000Z

242

Accelerated Seismic Release and Related Aspects of Seismicity Patterns on Earthquake Faults  

E-Print Network [OSTI]

of seismicity patterns associated with several theoretical frameworks. The subcritical crack growth approach developed to describe deformation on a crack prior to the occurrence of dynamic rupture predicts great

Lyakhovsky, Vladimir

243

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

244

CX-005113: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

113: Categorical Exclusion Determination 113: Categorical Exclusion Determination CX-005113: Categorical Exclusion Determination Stanford Synchrotron Radiation Lightsource Seismic Upgrade Phase 2 CX(s) Applied: B2.5 Date: 01/24/2011 Location(s): California Office(s): Stanford Linear Accelerator Site Office The Stanford Synchrotron Radiation Lightsource (SSRL) is proposing to upgrade a portion of the existing Stanford Positron-Electron Asymmetric Ring (SPEAR) to meet seismic standards. The proposed work includes : 1) the replacement of concrete roof blocks, placement of footings and new concrete walls, and installation of seismic connections at the old Beam Line 4; 2) the replacement of existing concrete roof blocks with precast roof blocks, placement of new footings, and installation of seismic anchors and

245

CX-003495: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

95: Categorical Exclusion Determination 95: Categorical Exclusion Determination CX-003495: Categorical Exclusion Determination Seismic Fracture Characterization Methodologies for Enhanced Geothermal Systems CX(s) Applied: A9, B3.1 Date: 08/18/2010 Location(s): Nevada Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Hi-Q is proposing to develop surface seismic and vertical seismic profile (VSP) methods and adapt them to the unique conditions encountered in Enhanced Geothermal Systems (EGS). Phase I was previously approved by GFO-09-040 on January 8, 2009. This review is for Phase II (tasks 4 through 6), which consists of extensive field testing with seismic surveys, gravity surveys, and a near offset VSP. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003495.pdf More Documents & Publications

246

CX-010397: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

97: Categorical Exclusion Determination 97: Categorical Exclusion Determination CX-010397: Categorical Exclusion Determination Seismic Monitoring for Seismic Hazards Analyses CX(s) Applied: B3.1 Date: 05/13/2013 Location(s): Idaho Offices(s): Idaho Operations Office The Idaho National Laboratory (INL) Probabilistic Seismic Hazards Analysis (PSHA) Phase I - Data Collection and Evaluation project is being conducted by Battelle Energy Alliance (BEA) at the request of the U.S. Department of Energy Idaho Operations office (DOE-ID) and INL Management. Earthquake data will be collected at seismic stations located near INL facility areas for at least two years using seismometers and for the long-term using accelerometers. CX-010397.pdf More Documents & Publications Independent Oversight Review, Idaho Site, March 2013

247

CX-004293: Categorical Exclusion Determination | Department of...  

Broader source: Energy.gov (indexed) [DOE]

Categorical Exclusion Determination CX-004293: Categorical Exclusion Determination New York Canyon Stimulation CX(s) Applied: A9, B3.1, B5.1 Date: 10202010 Location(s):...

248

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

249

Seismic Travel-Time Residuals and Plates  

Science Journals Connector (OSTI)

......United States, Canada and Greenland under the auspices of Project Vela Uniform (Long Range Seismic Measurements 1966). Arrival...1 that if we plot residuals on the focal sphere, we are at liberty to ascribe these residuals to source effects, receiver effects......

D. Davies; D. P. McKenzie

1969-09-01T23:59:59.000Z

250

A Seismic Look Under the Continents  

Science Journals Connector (OSTI)

...resources. C. Hamilton's Views of the Solar System includes a presentation by R...presents relief maps of Earth. Views of the Solar System includes an Earth topography animation...information on broadband seismic experiments in Tanzania and South Africa are included. A. Nyblade...

Karen M. Fischers; Rob D. van der Hilst

1999-08-27T23:59:59.000Z

251

Recommissioning the K-1600 Seismic Test Facility  

SciTech Connect (OSTI)

The Center of Natural Phenomena Engineering (CNPE) was established under the technical direction of Dr. James E. Beavers with a mandate to assess, by analyses and testing, the seismic capacity of building structures that house sensitive processes at the Oak Ridge Y-12 Plant. This mandate resulted in a need to recommission the K-1600 Seismic Test Facility (STF) at the Oak Ridge K-25 Site, which had been shutdown for 6 years. This paper documents the history of the facility and fives some salient construction, operation, and performance details of its 8-ton, 20-foot center of gravity payload bi-axial seismic simulator. A log of activities involved in the restart of this valuable resource is included as Table 1. Some of problems and solutions associated with recommissioning the facility under a relatively limited budget are included. The unique attributes of the shake table are discussed. The original mission and performance requirements are compared to current expanded mission and performance capabilities. Potential upgrades to further improve the capabilities of the test facility as an adjunct to the CNPE are considered. Additional uses for the facility are proposed, including seismic qualification testing of devices unique to enrichment technologies and associated hazardous waste treatment and disposal processes. In summary, the STF restart in conjunction with CNPE has added a vital, and unique facility to the list of current national resources utilized for earthquake engineering research and development. 3 figs., 1 tab.

Wynn, C.C. (Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)); Brewer, D.W. (Oak Ridge National Lab., TN (United States))

1991-10-01T23:59:59.000Z

252

Reservoir permeability from seismic attribute analysis  

SciTech Connect (OSTI)

In case of porous fluid-saturated medium the Biot's poroelasticity theory predicts a movement of the pore fluid relative to the skeleton on seismic wave propagation through the medium. This phenomenon opens an opportunity for investigation of the flow properties of the hydrocarbon-saturated reservoirs. It is well known that relative fluid movement becomes negligible at seismic frequencies if porous material is homogeneous and well cemented. In this case the theory predicts an underestimated seismic wave velocity dispersion and attenuation. Based on Biot's theory, Helle et al. (2003) have numerically demonstrated the substantial effects on both velocity and attenuation by heterogeneous permeability and saturation in the rocks. Besides fluid flow effect, the effects of scattering (Gurevich, et al., 1997) play very important role in case of finely layered porous rocks and heterogeneous fluid saturation. We have used both fluid flow and scattering effects to derive a frequency-dependent seismic attribute which is proportional to fluid mobility and applied it for analysis of reservoir permeability.

Silin, Dmitriy; Goloshubin, G.; Silin, D.; Vingalov, V.; Takkand, G.; Latfullin, M.

2008-02-15T23:59:59.000Z

253

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

254

Expected dose for the seismic scenario classes in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. This presentation describes the determination of expected dose to the reasonably maximally exposed individual (RMEI) specified in the NRC regulations for the YM repository for the seismic ground motion scenario class and the seismic fault displacement scenario class in the 2008 YM PA. The following topics are addressed: (i) definition of the seismic scenario classes and the determination of dose and expected dose to the RMEI, (ii) properties of the seismic ground motion scenario class, (iii) expected dose and uncertainty in expected dose to the RMEI for the seismic ground motion scenario class from 0 to 20,000 yr, (iv) expected dose and uncertainty in expected dose to the RMEI for the seismic ground motion scenario class from 0 to 106 yr, (v) properties of the seismic fault displacement scenario class including expected dose and uncertainty in expected dose to the RMEI from 0 to 20,000 yr and 0 to 106 yr, (vi) expected dose and uncertainty in expected dose to the RMEI for the combined ground motion and seismic fault displacement scenario class, and (vii) probabilities associated with seismic scenario classes. The present article is part of a special issue of Reliability Engineering and System Safety devoted to the 2008 YM PA; additional articles in the issue describe other aspects of the 2008 YM PA.

J.C. Helton; M.G. Gross; C.W. Hansen; C.J. Sallaberry; S.D. Sevougian

2014-01-01T23:59:59.000Z

255

A new approach to integrate seismic and production data in reservoir models  

SciTech Connect (OSTI)

A great deal of effort is devoted to reducing the uncertainties in reservoir modeling. For example, seismic properties are used to improve the characterization of interwell properties by providing porosity maps constrained to seismic impedance. Another means to reduce uncertainties is to constrain the reservoir model to production data. This paper describes a new approach where the production and seismic data are simultaneously used to reduce the uncertainties. In this new approach, the primary geologic parameter that controls reservoir properties is identified. Next, the geophysical parameter that is sensitive to the dominant geologic parameter is determined. Then the geology and geophysics are linked using analytic correlations. Unfortunately, the initial guess resulted in a reservoir model that did not match the production history. Since the time required for trial and error matching of production history is exorbitant, an automatic history matching method based on a fast optimization method was used to find the correlating parameters. This new approach was illustrated with an actual field in the Williston Basin. Upscalling problems do not arise since the scale is imposed by the size of the seismic bin (66m, 219 ft) which is the size of the simulator gridblocks.

Ouenes, A.; Chawathe, A.; Weiss, W. [New Mexico Tech, Socorro, NM (United States)] [and others

1997-08-01T23:59:59.000Z

256

Tactile Feeling Display using Functional Electrical Stimulation  

E-Print Network [OSTI]

that are properly weighted. The other is to use anodic current stimulation as well as cathodic current. We also, electrocutaneous, array elec- trodes, anodic stimulation, functional electrical stimula- tion 1. Introduction is to use arrayed electrodes instead of single one. The other is to use anodic current as a stimulation

Tachi, Susumu

257

Systems for low frequency seismic and infrasound detection of geo-pressure transition zones  

DOE Patents [OSTI]

Methods for determining the existence and characteristics of a gradational pressurized zone within a subterranean formation are disclosed. One embodiment involves employing an attenuation relationship between a seismic response signal and increasing wavelet wavelength, which relationship may be used to detect a gradational pressurized zone and/or determine characteristics thereof. In another embodiment, a method for analyzing data contained within a response signal for signal characteristics that may change in relation to the distance between an input signal source and the gradational pressurized zone is disclosed. In a further embodiment, the relationship between response signal wavelet frequency and comparative amplitude may be used to estimate an optimal wavelet wavelength or range of wavelengths used for data processing or input signal selection. Systems for seismic exploration and data analysis for practicing the above-mentioned method embodiments are also disclosed.

Shook, G. Michael (Idaho Falls, ID); LeRoy, Samuel D. (Houston, TX); Benzing, William M. (Tulsa, OK)

2007-10-16T23:59:59.000Z

258

The Seismic Category I Structures Program results for FY 1987  

SciTech Connect (OSTI)

The accomplishments of the Seismic Category I Structures Program for FY 1987 are summarized. These accomplishments include the quasi-static load cycle testing of large shear wall elements, an extensive analysis of previous data to determine if equivalent linear analytical models can predict the response of damaged shear wall structures, and code committee activities. In addition, previous testing and results that led to the FY 1987 program plan are discussed and all previous data relating to shear wall stiffness are summarized. Because separate reports have already summarized the experimental and analytical work in FY 1987, this report will briefly highlight this work and the appropriate reports will be references for a more detailed discussion. 12 refs., 23 figs., 18 tabs.

Farrar, C.R.; Bennett, J.G.; Dunwoody, W.E. (Los Alamos National Lab., NM (USA)); Baker, W.E. (New Mexico Univ., Albuquerque, NM (USA))

1990-10-01T23:59:59.000Z

259

Seismic modelling of a fractured carbonate reservoir in Abu Dhabi, United Arab Emirates  

E-Print Network [OSTI]

Seismic modelling of a fractured carbonate reservoir in Abu Dhabi, United Arab Emirates Mohammed Y is required to optimize hydrocarbon production. A rock containing parallel fractures can be seismically to the seismic wavelength. Seismic anisotropy may be detectable from attributes of pre-stack 3-D seismic data

Ali, Mohammed

260

Preliminary report on LLNL mine seismicity deployment at the Twentymile Coal Mine  

SciTech Connect (OSTI)

This report summarizes the preliminary results of a just completed experiment at the Twentymile Coal Mine, operated by the Cyprus Amax Coal Company near Oak Creek, CO. The purpose of the experiment was to obtain local and regional seismic data from roof caves associated with long-wall mining activities and to use this data to help determine the effectiveness with which these events can be discriminated from underground nuclear explosions under a future Comprehensive Test Ban Treaty.

Walter, W.R.; Hunter, S.L.; Glenn, L.A.

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Seismic facies analysis of entrenched valley fill: a case study in Galveston Bay area, Texas  

SciTech Connect (OSTI)

The entrenched Trinity River valley beneath Galveston Bay was studied using high-resolution seismic data. The shape of the incised valley was determined on mini-sparker lines, which were obtained from the US Geological Survey in Corpus Christi, Texas. Uniboom lines, shot in 1987 aboard the Rice University research vessel R/V Matagorda, provided detailed records of the sediments filling the valley.

Smyth, W.C.; Anderson, J.B.; Thomas, M.A.

1988-09-01T23:59:59.000Z

262

A comparison of methods for 3D target localization from seismic and acoustic signatures  

SciTech Connect (OSTI)

An important application of seismic and acoustic unattended ground sensors (UGS) is the estimation of the three dimensional position of an emitting target. Seismic and acoustic data derived from UGS systems provide the taw information to determine these locations, but can be processed and analyzed in a number of ways using varying amounts of auxiliary information. Processing methods to improve arrival time picking for continuous wave sources and methods for determining and defining the seismic velocity model are the primary variables affecting the localization accuracy. Results using field data collected from an underground facility have shown that using an iterative time picking technique significantly improves the accuracy of the resulting derived target location. Other processing techniques show little advantage over simple crosscorrelation along in terms of accuracy, but may improve the ease with which time picks can be made. An average velocity model found through passive listening or a velocity model determined from a calibration source near the target source both result in similar location accuracies, although the use of station correction severely increases the location error.

ELBRING,GREGORY J.; GARBIN,H. DOUGLAS; LADD,MARK D.

2000-04-03T23:59:59.000Z

263

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

264

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

265

Seismic switch for strong motion measurement  

DOE Patents [OSTI]

A seismic switching device that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period.

Harben, Philip E. (Oakley, CA); Rodgers, Peter W. (Santa Barbara, CA); Ewert, Daniel W. (Patterson, CA)

1995-01-01T23:59:59.000Z

266

Seismic switch for strong motion measurement  

DOE Patents [OSTI]

A seismic switching device is described that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period. 11 figs.

Harben, P.E.; Rodgers, P.W.; Ewert, D.W.

1995-05-30T23:59:59.000Z

267

On seismic signatures of rapid variation  

E-Print Network [OSTI]

We present an improved model for an asteroseismic diagnostic contained in the frequency spacing of low-degree acoustic modes. By modelling in a realistic manner regions of rapid variation of dynamically relevant quantities, which we call acoustic glitches, we can derive signatures of the gross properties of those glitches. In particular, we are interested in measuring properties that are related to the helium ionization zones and to the rapid variation in the background state associated with the lower boundary of the convective envelope. The formula for the seismic diagnostic is tested against a sequence of theoretical models of the Sun, and is compared with seismic diagnostics published previously by Monteiro & Thompson (1998, 2005) and by Basu et al. (2004).

G. Houdek; D. O. Gough

2006-12-01T23:59:59.000Z

268

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.

269

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

270

Integrative seismic safety evaluation of a high concrete arch dam  

Science Journals Connector (OSTI)

Abstract An integrative seismic safety evaluation of an arch dam should include all sources of nonlinearities, dynamic interactions between different components and the external loads. The present paper investigates the calibration procedure and nonlinear seismic response of an existing high arch dam. The first part explains the conducted analyses for the static and thermal calibrations of the dam based on site measurements. The second part investigates the nonlinear seismic analysis of the calibrated model considering the effect of joints, cracking of mass concrete, reservoir–dam–rock interaction, hydrodynamic pressure inside the opened joints and the geometric nonlinearity. Penetration of the water inside the opened joints accelerates the damage process. The integrative seismic assessment of a case study shows that the dam will fail under the maximum credible earthquake scenario. The dam is judged to be severely damaged with extensive cracking and the joints undergo opening/sliding. A systematic procedure is proposed for seismic and post-seismic safety of dams.

M.A. Hariri-Ardebili; M.R. Kianoush

2014-01-01T23:59:59.000Z

271

Three dimensional marine seismic survey has no measurable effect on species richness or abundance of a coral reef associated fish community  

Science Journals Connector (OSTI)

Abstract Underwater visual census was used to determine the effect of a three dimensional seismic survey on the shallow water coral reef slope associated fish community at Scott Reef. A census of the fish community was conducted on six locations at Scott Reef both before and after the survey. The census included small site attached demersal species belonging to the family Pomacentridae and larger roving demersal species belonging to the non-Pomacentridae families. These data were combined with a decade of historical data to assess the impact of the seismic survey. Taking into account spatial, temporal, spatio-temporal and observer variability, modelling showed no significant effect of the seismic survey on the overall abundance or species richness of Pomacentridae or non-Pomacentridae. The six most abundant species were also analysed individually. In all cases no detectable effect of the seismic survey was found on the abundance of these fish species at Scott Reef.

Ian Miller; Edward Cripps

2013-01-01T23:59:59.000Z

272

Tapering Enhanced Stimulated Superradiant Amplification  

E-Print Network [OSTI]

High conversion efficiency between electrical and optical power is highly desirable both for high peak and high average power radiation sources. In this paper we discuss a new mechanism based on stimulated superradiant emission in a strongly tapered undulator whereby an optimal undulator tapering is calculated by dynamically matching the resonant energy variation to the ponderomotive decelerating gradient. The method has the potential to allow the extraction of a large fraction (~50%) of power from a relativistic electron beam and convert it into coherent narrow-band tunable radiation, and shows a clear path to very high average power radiation sources.

Duris, Joseph; Musumeci, Pietro

2014-01-01T23:59:59.000Z

273

Summary of the historical development of seismic design of nuclear power plants in Japan and the U.S.  

Science Journals Connector (OSTI)

Abstract Over the past 50 years seismic design of nuclear power plants in Japan and the U.S. have undergone very significant changes in the three activities associated with design:• Quantification of seismic load and other applicable loads and specification of their load combinations to be considered in design. • Analysis methods and procedures necessary to convert input earthquake motions and loads normally expressed in the form of acceleration to resultant seismic dynamic or equivalent static forces, moments or stresses, fms in structures, systems and components, SSC. • Codes or standards acceptance criteria used to evaluate resultant forces, moments or stresses, fms in nuclear safety SSC to determine design adequacy. These applications to the historical development of Nuclear Power Plant, NPP designs in Japan and U.S. are summarized.

John D. Stevenson

2014-01-01T23:59:59.000Z

274

Relay testing parametric investigation of seismic fragility  

SciTech Connect (OSTI)

The seismic capacity of most electrical equipment is governed by malfunction of relays. An evaluation of the existing relay test data base at Brookhaven National Laboratory (BNL) has indicated that the seismic fragility of a relay may depend on various parameters related to the design or the input motion. In particular, the electrical mode, contact state, adjustment, chatter duration acceptance limit, and the frequency and the direction of the vibration input have been considered to influence the relay fragility level. For a particular relay type, the dynamics of its moving parts depends on the exact model number and vintage and hence, these parameters may also influence the fragility level. In order to investigate the effect of most of these parameters on the seismic fragility level, BNL has conducted a relay test program. The testing has been performed at Wyle Laboratories. Establishing the correlation between the single frequency fragility test input and the corresponding multifrequency response spectrum (TRS) is also an objective of this test program. This paper discusses the methodology used for testing and presents a brief summary of important test results. 1 ref., 10 figs.

Bandyopadhyay, K.; Hofmayer, C.; Kassir, M.; Pepper, S.

1989-01-01T23:59:59.000Z

275

Basis for seismic provisions of DOE-STD-1020  

SciTech Connect (OSTI)

DOE-STD-1020 provides for a graded approach for the seismic design and evaluation of DOE structures, systems, and components (SSC). Each SSC is assigned to a Performance Category (PC) with a performance description and an approximate annual probability of seismic-induced unacceptable performance, P{sub F}. The seismic annual probability performance goals for PC 1 through 4 for which specific seismic design and evaluation criteria are presented. DOE-STD-1020 also provides a seismic design and evaluation procedure applicable to achieve any seismic performance goal annual probability of unacceptable performance specified by the user. The desired seismic performance goal is achieved by defining the seismic hazard in terms of a site-specified design/evaluation response spectrum (called herein, the Design/Evaluation Basis Earthquake, DBE). Probabilistic seismic hazard estimates are used to establish the DBE. The resulting seismic hazard curves define the amplitude of the ground motion as a function of the annual probability of exceedance P{sub H} of the specified seismic hazard. Once the DBE is defined, the SSC is designed or evaluated for this DBE using adequately conservative deterministic acceptance criteria. To be adequately conservative, the acceptance criteria must introduce an additional reduction in the risk of unacceptable performance below the annual risk of exceeding the DBE. The ratio of the seismic hazard exceedance probability P{sub H} to the performance goal probability P{sub F} is defined herein as the risk reduction ratio. The required degree of conservatism in the deterministic acceptance criteria is a function of the specified risk reduction ratio.

Kennedy, R.C. [RPK Structural Mechanics Consulting, Yorba Linda, CA (United States); Short, S.A. [EQE International, Inc., San Francisco, CA (United States)

1994-04-01T23:59:59.000Z

276

Third Quarter Hanford Seismic Report for Fiscal Year 2005  

SciTech Connect (OSTI)

Hanford Seismic Monitoring 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. Hanford Seismic Monitoring also 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 Monitoring staff. For the Hanford Seismic Network, there were 337 triggers during the third quarter of fiscal year 2005. Of these triggers, 20 were earthquakes within the Hanford Seismic Network. The largest earthquake within the Hanford Seismic Network was a magnitude 1.3 event May 25 near Vantage, Washington. During the third quarter, stratigraphically 17 (85%) events occurred in the Columbia River basalt (approximately 0-5 km), no events in the pre-basalt sediments (approximately 5-10 km), and three (15%) in the crystalline basement (approximately 10-25 km). During the first quarter, geographically five (20%) earthquakes occurred in swarm areas, 10 (50%) earthquakes were associated with a major geologic structure, and 5 (25%) were classified as random events.

Reidel, Steve P.; Rohay, Alan C.; Hartshorn, Donald C.; Clayton, Ray E.; Sweeney, Mark D.

2005-09-01T23:59:59.000Z

277

The contribution of pattern recognition of seismic and morphostructural data to seismic hazard assessment  

E-Print Network [OSTI]

The reliable statistical characterization of the spatial and temporal properties of large earthquakes occurrence is one of the most debated issues in seismic hazard assessment, due to the unavoidably limited observations from past events. We show that pattern recognition techniques, which are designed in a formal and testable way, may provide significant space-time constraints about impending strong earthquakes. This information, when combined with physically sound methods for ground shaking computation, like the neo-deterministic approach (NDSHA), may produce effectively preventive seismic hazard maps. Pattern recognition analysis of morphostructural data provide quantitative and systematic criteria for identifying the areas prone to the largest events, taking into account a wide set of possible geophysical and geological data, whilst the formal identification of precursory seismicity patterns (by means of CN and M8S algorithms), duly validated by prospective testing, provides useful constraints about impend...

Peresan, Antonella; Soloviev, Alexander; Panza, Giuliano F

2014-01-01T23:59:59.000Z

278

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

E-Print Network [OSTI]

hazard delineation. This paper describes a new technique for drilling hazard identification using a conventional 3 D seismic amplitude dataset. An event coherence calculation program is applied to a 3 D seismic dataset to derive seismic attributes...

Fischer, Elena Mikhaylovna

2012-06-07T23:59:59.000Z

279

Seismic Performance Assessment and Probabilistic Repair Cost Analysis of Precast Concrete Cladding Systems for Multistory Buildings  

E-Print Network [OSTI]

Nov. 8- 9. Arnold, C. 2008. Seismic Safety of the BuildingTab Connections for Gravity and Seismic Loads. Steel Tips,and Brown, A.T. 1995a. Seismic Performance of Architectural

Hunt, Jeffrey Patrick

2010-01-01T23:59:59.000Z

280

UC Berkeley Seismic Guidelines, Appendix II: Ground Motion Time Histories for the UC Berkeley Campus  

E-Print Network [OSTI]

U.C. BERKELEY SEISMIC GUIDELINES APPENDIX II GROUND MOTIONthe deaggregation of the seismic hazard. These values at aK-net site whose soil and seismic wave velocity profiles are

Authors, Various

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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.


281

Geodynamic and seismic constraints on the thermochemical structure and dynamics of convection in the deep mantle  

Science Journals Connector (OSTI)

...Brodholt and B. J. Wood Geodynamic and seismic constraints on the thermochemical structure...by this viscosity peak. geodynamics|seismic tomography|mantle viscosity|three-dimensional...anomalies|mantle convection| Geodynamic and seismic constraints on the thermochemical structure...

2002-01-01T23:59:59.000Z

282

Seismic Earth Pressures on Retaining Structures and Basement Walls in Cohesionless Soils  

E-Print Network [OSTI]

50 4.4. Seismic Behavior of Retaining Wall-BackfillWhitman, R. V. (1999). “Seismic analysis and design of rigidBalkema, Rotterdam. Building Seismic Safety Council. (2010).

Geraili Mikola, Roozbeh

2012-01-01T23:59:59.000Z

283

Borehole Seismic Monitoring of Injected CO2 at the Frio Site  

E-Print Network [OSTI]

D. , 2001, Orbital vibrator seismic source for simultaneous5: Tomographic image of seismic velocity change due to CO 2Borehole Seismic Monitoring of Injected CO 2 at the Frio

Daley, Thomas M.; Myer, Larry R.; Hoversten, G.M.; Peterson, John E.; Korneev, Valeri A.

2006-01-01T23:59:59.000Z

284

Review paper Seismic interferometry and ambient noise tomography in the British Isles  

E-Print Network [OSTI]

Review paper Seismic interferometry and ambient noise tomography in the British Isles Heather. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 2. Theory and method of seismic interferometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 4.2. Seismic interferometry across the Scottish Highlands

285

Seismic Assessment and Retrofit of Existing Multi-Column Bent Bridges  

E-Print Network [OSTI]

Seismic Assessment and Retrofit of Existing Multi-Column Bent Bridges By Cole C. Mc ................................................................................................................................... 6 Seismic Activity in Western Washington State Approach ­ Bridge Modeling .............................................11 Seismic Excitations

286

In Vivo Characterization of a Wide area 802.11b Wireless Seismic Array  

E-Print Network [OSTI]

area 802.11b Wireless Seismic Array Martin Lukac, Vinayakpresent a study of the MASE seismic data collection networkthe network. In the case of seismic sensing applications the

Lukac, Martin; Naik, Vineyak; Stubailo, Igor; Husker, Allen; Estrin, D

2007-01-01T23:59:59.000Z

287

Migration of a coarse fluvial sediment pulse detected by hysteresis in bedload generated seismic waves  

E-Print Network [OSTI]

J. , Brodsky, Emily E. , 2011. A seismic signature of riverSpectral anal- ysis of seismic noise induced by rivers: a2010. Location of river-induced seismic signal from noise

Roth, Danica L; Finnegan, Noah J; Brodsky, Emily E; Cook, K.L.; Stark, C.P.; Wang, H.W.

2014-01-01T23:59:59.000Z

288

Effects of Sounds From Seismic Air Guns on Fish Behavior and Catch Rates  

Science Journals Connector (OSTI)

Seismic surveys are performed to explore for oil ... Concerns have been raised about the impacts of seismic air gun emissions on marine life, and fishermen in particular claim that seismic surveys have a serious ...

Svein Løkkeborg; Egil Ona; Aud Vold; Are Salthaug

2012-01-01T23:59:59.000Z

289

Tracer Methods for Characterizing Fracture Stimulation in Engineered...  

Broader source: Energy.gov (indexed) [DOE]

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal...

290

CX-001413: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

1413: Categorical Exclusion Determination 1413: Categorical Exclusion Determination CX-001413: Categorical Exclusion Determination Control House Seismic Upgrades - Allston, Keeler, Ostrander, and Marion Substations CX(s) Applied: B1.16, B1.3 Date: 04/12/2010 Location(s): Columbia, Oregon Office(s): Bonneville Power Administration Bonneville Power Administration (BPA) proposes to first remove and dispose of any asbestos and lead-based paint within seismic strengthening project area at each of its substations listed in the project title. BPA will then construct both structural and non-structural seismic upgrades, and perform minor architectural work at each substation. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-001413.pdf More Documents & Publications CX-005411: Categorical Exclusion Determination CX-002433: Categorical Exclusion Determination

291

CX-005708: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

8: Categorical Exclusion Determination 8: Categorical Exclusion Determination CX-005708: Categorical Exclusion Determination Phase 3 - Seismic Fracture Characterization Methodologies for Enhanced Geothermal Systems CX(s) Applied: A9, B3.1 Date: 04/26/2011 Location(s): Nevada Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Hi-Q is proposing to develop surface seismic and Vertical Seismic Profile (VSP) methods and adapt them to the unique conditions encountered in Enhanced Geothermal Systems (EGS). Phase III (Tasks 7 through 9) of the program would consist of the acquisition, processing, and interpretation of extensive multi offset VSP. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005708.pdf More Documents & Publications CX-003495: Categorical Exclusion Determination CX-002924: Categorical Exclusion Determination

292

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

Open Energy Info (EERE)

studies- Roosevelt Hot Springs, Utah and Raft River, Idaho Abstract Local seismic networks were established at the Roosevelt Hot Springs geothermal area, utah and at Raft...

293

Advanced Seismic Data Analysis Program- The "Hot Pot" Project  

Broader source: Energy.gov [DOE]

Advanced Seismic Data Analysis Program- The "Hot Pot" Project presentation at the April 2013 peer review meeting held in Denver, Colorado.

294

Geothermal: Sponsored by OSTI -- Application of seismic tomographic...  

Office of Scientific and Technical Information (OSTI)

Application of seismic tomographic techniques in the investigation of geothermal systems Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On...

295

Seismic Studies of a Massive Hydraulic Fracturing Experiment...  

Open Energy Info (EERE)

a Massive Hydraulic Fracturing Experiment Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Seismic Studies of a Massive Hydraulic Fracturing...

296

Poroelastic modeling of seismic boundary conditions across a fracture  

E-Print Network [OSTI]

seismic wave scattering off nonplanar e.g., curved and intersecting fractures. .... wave studies by Pyrak-Nolte and Cook 1987, and Nihei et al. 1999.

2007-07-20T23:59:59.000Z

297

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)...

298

Statistical study of seismicity associated with geothermal reservoirs...  

Open Energy Info (EERE)

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...

299

Seismic damage identification for steel structures using distributed fiber optics  

Science Journals Connector (OSTI)

A distributed fiber optic monitoring methodology based on optic time domain reflectometry technology is developed for seismic damage identification of steel structures. Epoxy with a...

Hou, Shuang; Cai, C S; Ou, Jinping

2009-01-01T23:59:59.000Z

300

Teleseismic-Seismic Monitoring At Geysers Area (Zucca, Et Al...  

Open Energy Info (EERE)

Zucca, Et Al., 1994) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Geysers Area (Zucca, Et Al., 1994)...

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Teleseismic-Seismic Monitoring At Valles Caldera - Redondo Geothermal...  

Open Energy Info (EERE)

Steck, Et Al., 1998) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Valles Caldera - Redondo Geothermal Area...

302

Towards the Understanding of Induced Seismicity in Enhanced Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

Geothermal Program UCB * EGS operations rely on small-scale seismicity to delineate fracture extent, fracture type and pathways for water * EGS operations need to understand...

303

Seismic Technology Adapted to Analyzing and Developing Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

of geothermal prospects beneath volcanic outcrops. Seismic-based quantification of fracture orientation and intensity will result in optimal positioning of geothermal wells....

304

Seismic Technology Adapted to Analyzing and Developing Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

of geothermal prospects beneath volcanic outcrops. * Seismic-based quantification of fracture orientation and intensity will result in optimal positioning of geothermal wells. *...

305

Towards the Understanding of Induced Seismicity in Enhanced Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

Office eere.energy.gov * EGS operations rely on small-scale seismicity to delineate fracture extent, fracture type and pathways for water * EGS operations need to understand...

306

Joint inversion of electrical and seismic data for Fracture char...  

Broader source: Energy.gov (indexed) [DOE]

Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems Michael Batzle, PI Colorado School of Mines Track Name: Fluid...

307

Seismic functionality of essential relays in operating nuclear plants  

Science Journals Connector (OSTI)

The regulatory criteria for licensing of nuclear power plants require that certain safety-related equipment and systems be designed to function during and following a postulated, design basis earthquake. Demonstration of seismic adequacy must be performed and formally documented by shake-table testing, analysis or other specified methods. Since many older, operating nuclear power plants were designed and constructed prior to the issuance of the current seismic qualification criteria, the NRC has questioned whether the seismic adequacy of the essential equipment has been adequately demonstrated and documented. This concern is identified in Unresolved Safety Issue A-46, “Seismic Qualification of Equipment in Operating Nuclear Power Plants”. In response to this concern, a group of affected plant owners, the Seismic Qualification Utility Group (SQUG), with support from the Electric Power Research Institute (EPRI), has undertaken a program to demonstrate the seismic adequacy of essential equipment by the use of actual experience with such equipment in plants which have undergone significant earthquakes and by the use of available seismic qualification data for similar equipment. An important part of this program is the development of data and the methodology for verifying the functionality of electrical relays used in essential circuits needed for plant shutdown during a seismic event. This paper describes this part of the Seismic Qualification Utility Group program. The relay functionality evaluation methodology is being developed under EPRI Project No. RP2849-1.

W.R. Schmidt; R.P. Kassawara

1988-01-01T23:59:59.000Z

308

Data Acquisition-Manipulation At Central Nevada Seismic Zone...  

Open Energy Info (EERE)

- 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005...

309

Teleseismic-Seismic Monitoring At Valles Caldera - Sulphur Springs...  

Open Energy Info (EERE)

Lee Steck (1997) Heterogeneous Structure Around the Jemez Volcanic Field, New Mexico, USA, as Inferred from the Envelope Inversion of Active-Experiment Seismic Data Additional...

310

An experimental and numerical study of wind turbine seismic behavior  

E-Print Network [OSTI]

of Seismic and Wind Load Combinations 8.5.2 Extremeextrapolation for wind turbine extreme loads. ” Wind Energy,extrapolation for wind turbine extreme loads. ” 46th AIAA

Prowell, I.

2011-01-01T23:59:59.000Z

311

Tau-p analysis of large-offset seismic data from the PASSCAL Ouachita Seismic Experiment  

E-Print Network [OSTI]

Kansas (Brown et al, 1983). Interpretations of depth (in km) to Moho along seismic refraction lines from: 1, Cram (1961); 2, Dorman, et al (1972); 3, Ewing et al (1955); 4, Hales et al (1970)l 5, McCamey and hleyer (1966); 6, Mitchell and Landisman... Kansas (Brown et al, 1983). Interpretations of depth (in km) to Moho along seismic refraction lines from: 1, Cram (1961); 2, Dorman, et al (1972); 3, Ewing et al (1955); 4, Hales et al (1970)l 5, McCamey and hleyer (1966); 6, Mitchell and Landisman...

Lizarralde, Daniel

2012-06-07T23:59:59.000Z

312

SciTech Connect: Proceedings of the 23rd Seismic Research Symposium...  

Office of Scientific and Technical Information (OSTI)

3rd Seismic Research Symposium: Worldwide Monitoring of Nuclear Explosions Citation Details In-Document Search Title: Proceedings of the 23rd Seismic Research Symposium: Worldwide...

313

SciTech Connect: Proceedings of the 25th Seismic Research Review...  

Office of Scientific and Technical Information (OSTI)

5th Seismic Research Review -- Nuclear Explosion Monitoring: Building the Knowledge Base Citation Details In-Document Search Title: Proceedings of the 25th Seismic Research Review...

314

SciTech Connect: Proceedings of the 26th Seismic Research Review...  

Office of Scientific and Technical Information (OSTI)

6th Seismic Research Review: Trends in Nuclear Explosion Monitoring Citation Details In-Document Search Title: Proceedings of the 26th Seismic Research Review: Trends in Nuclear...

315

SciTech Connect: Proceedings of the 24th Seismic Research Review...  

Office of Scientific and Technical Information (OSTI)

4th Seismic Research Review: Nuclear Explosion Monitoring: Innovation and Integration Citation Details In-Document Search Title: Proceedings of the 24th Seismic Research Review:...

316

SciTech Connect: Proceedings of the 27th Seismic Research Review...  

Office of Scientific and Technical Information (OSTI)

7th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies Citation Details In-Document Search Title: Proceedings of the 27th Seismic Research Review:...

317

SciTech Connect: Proceedings of the 21st Seismic Research Symposium...  

Office of Scientific and Technical Information (OSTI)

1st Seismic Research Symposium: Technologies for Monitoring The Comprehensive Nuclear Test-Ban Treaty Citation Details In-Document Search Title: Proceedings of the 21st Seismic...

318

A direct displacement-based design of low-rise seismic resistant steel moment frames  

E-Print Network [OSTI]

Lateral Force Distribution for Seismic Design StructuralLateral Force Distribution for Seismic Design . 169stiffness distribution are additional design choices that

Harris, John L.

2006-01-01T23:59:59.000Z

319

New funding will stimulate alternative energy research  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Alternative energy research New funding will stimulate alternative energy research The Laboratory recently received notice that it has received ARRA funding to participate in four...

320

Seismic data obtained using. 50-caliber machine gun as high-resolution seismic source  

SciTech Connect (OSTI)

A seismic line across a shoestring sandstone served as a test of a .50-caliber machine gun as a high-resolution seismic source in exploring for shallow sandstones. The line crosses part of the Bronson-Xenia oil field, which produces from the Bartlesville sandstone of the Cherokee Group (Pennsylvanian) in Bourbon County, Kansas, at a depth of 622 ft (190 m). The reservoir, which has a flat base and an irregular top, may represent a superposition of fluvial sandstones. The seismic line clearly depicts a lenticular sandstone that is up to 56 ft (17 m) thick. Both the lateral extent of the sandstone body and a slight velocity pull-up of the underlying layers are evident. In addition to the target sandstone, two additional sandstone bodies may be present at the east end of the line, where well control is not available. Analysis of the seismic data indicates that the frequency of the .50-caliber sources is from 30 to 170 Hz. The high frequencies are retained deep into the section. Two shots per shotpoint are the minimum number necessary for acquiring high-quality data, and 12-fold is the minimum acceptable common-depth-point (CDP) coverage. 11 figures.

Seeber, M.D.; Steeples, D.

1986-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

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

SciTech Connect (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

322

Confirmation of the seismic resistance of nuclear power plant equipment after assembly  

SciTech Connect (OSTI)

It is shown that the natural frequencies and damping decrements of nuclear power plant equipment can only be determined experimentally and directly at the power generation units (reactors) of nuclear power plants under real disassembly conditions for the equipment, piping network, thermal insulation, etc. A computational experimental method is described in which the natural frequencies and damping decrements are determined in the field and the seismic resistance is reevaluated using these values. This method is the basis of the standards document 'Methods for confirming the dynamic characteristics of systems and components of the generating units of nuclear power plants which are important for safety' prepared and introduced in 2012.

Kaznovsky, P. S.; Kaznovsky, A. P.; Saakov, E. S.; Ryasnyj, S. I. [JSC 'Atomtehenergo' (Russian Federation)

2013-05-15T23:59:59.000Z

323

First Quarter Hanford Seismic Report for Fiscal Year 2011  

SciTech Connect (OSTI)

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

324

DESIGN PHILOSOPHY FOR STEEL STRUCTURES IN MODERATE SEISMIC REGIONS  

E-Print Network [OSTI]

DESIGN PHILOSOPHY FOR STEEL STRUCTURES IN MODERATE SEISMIC REGIONS E.M. Hines1 and L.A. Fahnestock2 ABSTRACT The authors propose a design philosophy for steel buildings in moderate seismic regions that draws to the continued development and validation of this philosophy. Introduction Recent widespread adoption

Hines, Eric

325

Rayleigh's Principle in Finite Element Calculations of Seismic Wave Response  

Science Journals Connector (OSTI)

......of Seismic Wave Response Warwick D. Smith...resulting error in frequency is of second order...conserve computer storage for large models...estimatesof the seismic response of irregular Earth...complex one, and this frequency is then accurate...to the potential energy and the denominator......

Warwick D. Smith; Bruce A. Bolt

1958-12-01T23:59:59.000Z

326

First Quarter Hanford Seismic Report for Fiscal Year 2009  

SciTech Connect (OSTI)

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

327

Three-component borehole wall-locking seismic detector  

DOE Patents [OSTI]

A seismic detector for boreholes is described that has an accelerometer sensor block for sensing vibrations in geologic formations of the earth. The density of the seismic detector is approximately matched to the density of the formations in which the detector is utilized. A simple compass is used to orient the seismic detector. A large surface area shoe having a radius approximately equal to the radius of the borehole in which the seismic detector is located may be pushed against the side of the borehole by actuating cylinders contained in the seismic detector. Hydraulic drive of the cylinders is provided external to the detector. By using the large surface area wall-locking shoe, force holding the seismic detector in place is distributed over a larger area of the borehole wall thereby eliminating concentrated stresses. Borehole wall-locking forces up to ten times the weight of the seismic detector can be applied thereby ensuring maximum detection frequency response up to 2,000 hertz using accelerometer sensors in a triaxial array within the seismic detector.

Owen, Thomas E. (Helotes, TX)

1994-01-01T23:59:59.000Z

328

FOCUSED GAUSSIAN BEAMS FOR SEISMIC IMAGING ROBERT L. NOWACK  

E-Print Network [OSTI]

FOCUSED GAUSSIAN BEAMS FOR SEISMIC IMAGING ROBERT L. NOWACK Abstract. The application of focused Gaussian beams is investigated for the seismic imaging of common-shot reflection data. The focusing of Gaussian beams away from the source and receiver surface adds flexibility to beam imaging algorithms

Nowack, Robert L.

329

Detection of Underground Marlpit Quarries Using High Resolution Seismic  

E-Print Network [OSTI]

Detection of Underground Marlpit Quarries Using High Resolution Seismic B. Piwakowski* (Ecole of high resolution reflection seismic for the detection and location of underground marlpit quarries of the geological structure, the results show that the detection of marlpit underground quarries, often considered

Boyer, Edmond

330

Multi-Resolution Seismic Tomography Based on Recursive Tessellation Hierarchy  

SciTech Connect (OSTI)

A 3-D global tomographic model that reconstructs velocity structure at multiple scales and incorporates laterally variable seismic discontinuities is currently being developed. The model parameterization is node-based where nodes are placed along vertices defined by triangular tessellations of a spheroidal surface. The triangular tessellation framework is hierarchical. Starting with a tetrahexahedron representing the whole globe (1st level of the hierarchy, 24 faces), they divide each triangle of the tessellation into daughter triangles. The collection of all daughter triangles comprises the 2nd level of the tessellation hierarchy and further recursion produces an arbitrary number of tessellation levels and arbitrarily fine node-spacing. They have developed an inversion procedure that takes advantage of the recursive properties of the tessellation hierarchies by progressively solving for shorter wavelength heterogeneities. In this procedure, we first perform the tomographic inversion using a tessellation level with coarse node spacing. They find that a coarse node spacing of approximately 8{sup o} is adequate to capture bulk regional properties. They then conduct the tomographic inversion on a 4{sup o} tessellation level using the residuals and inversion results from the 8{sup o} run. In practice they find that the progressive tomography approach is robust, providing an intrinsic regularization for inversion stability and avoids the issue of predefining resolution levels. Further, determining average regional properties with coarser tessellation levels enables long-wavelength heterogeneities to account for sparsely sampled regions (or regions of the mantle where longer wavelength patterns of heterogeneity suffice) while allowing shorter length-scale heterogeneities to emerge where necessary. They demonstrate the inversion approach with a set of synthetic test cases that mimic the complex nature of data arrangements (mixed-determined inversion) common to most tomographic problems. They also apply the progressive inversion approach with Pn waves traveling within the Middle East region and compare the results to simple tomographic inversions. As expected from synthetic testing, the progressive approach results in detailed structure where there is high data density and broader regional anomalies where seismic information is sparse. The ultimate goal is to use these methods to produce a seamless, multi-resolution global tomographic model with local model resolution determined by the constraints afforded by available data. They envisage this new technique as the general approach to be employed for future multi-resolution model development with complex arrangements of regional and teleseismic information.

Simmons, N A; Myers, S C; Ramirez, A

2009-07-01T23:59:59.000Z

331

On the seismic age of the Sun  

E-Print Network [OSTI]

We use low-degree acoustic modes obtained by the BiSON to estimate the main-sequence age $t_\\odot$ of the Sun. The calibration is accomplished by linearizing the deviations from a standard solar model the seismic frequencies of which are close to those of the Sun. Formally, we obtain the preliminary value $t_\\odot=4.68\\pm0.02 $Gy, coupled with an initial heavy-element abundance $Z=0.0169\\pm0.0005$. The quoted standard errors, which are not independent, are upper bounds implied under the assumption that the standard errors in the observed frequencies are independent.

G. Houdek; D. O. Gough

2007-10-03T23:59:59.000Z

332

Mobilization of colloidal particles by low-frequency dynamic stress stimulation  

SciTech Connect (OSTI)

Naturally occurring seismic events and artificially generated low-frequency (1 to 500 Hertz) elastic waves have been observed to alter the production rates of oil and water wells, sometimes increasing and sometimes decreasing production, and to influence the turbidity of surface and well water. The decreases in production are of particular concern - especially when artificially generated elastic waves are applied as a method for enhanced oil recovery. The exact conditions that result in a decrease in production remain unknown. While the underlying environment is certainly complex, the observed increase in water well turbidity after natural seismic events suggests the existence of a mechanism that can affect both the subsurface flow paths and mobilization of in-situ colloidal particles. This paper explores the macroscopic and microscopic effects of low-frequency dynamic stress stimulations on the release of colloidal particles from an analog core representing an infinitesimal section along the propagation paths of an elastic wave. Experiments on a column packed with 1-mm borosilicate beads and loaded with polystyrene microspheres demonstrate that axial mechanical stress oscillations enhance the mobilization of captured microspheres. Increasing the amplitude of the oscillations increases the number of microspheres released and can also result in cyclical spikes in effluent microsphere concentration during stimulation. Under a prolonged period of stimulation, the cyclical effluent spikes coincided with fluctuations in the column pressure data, and continue at a diminished level after stimulation. This behavior can be attributed to rearrangements of the beads in the column, resulting in possible changes to the void space and/or tortuosity of the packing. Optical microscopy observations of the beads during low frequency oscillations reveal that individual beads rotate, thereby rubbing against each other and scraping away portions of the adsorbed microspheres. These results support the theory that mechanical interactions between porous matrix grains are important mechanisms in flow path alteration and the mobilization of naturally occurring colloidal particles during elastic wave stimulation. These results also point to both continuous and discrete, en masse releases of colloidal particles, perhaps due to circulation cells within the packing material.

Beckham, Richard Edward [Los Alamos National Laboratory; Amr, Abdel - Fattah I [Los Alamos National Laboratory; Peter, Roberts M [Los Alamos National Laboratory; Reem, Ibrahim [Los Alamos National Laboratory; Tarimala, Sowmitri [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

333

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

334

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"

335

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

336

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

337

Seismic-Scale Rock Physics of Methane Hydrate  

SciTech Connect (OSTI)

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

338

First Quarter Hanford Seismic Report for Fiscal Year 2008  

SciTech Connect (OSTI)

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 earth¬quakes 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

339

Second Quarter Hanford Seismic Report for Fiscal Year 2008  

SciTech Connect (OSTI)

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

340

Effects of surface topography on ground shaking prediction: implications for seismic hazard analysis and recommendations for seismic design  

Science Journals Connector (OSTI)

......homogeneous rock bodies with flat topography or, in other...provisions (Building Seismic Safety Council 2003)] site-specific...applicable only in the case of rocky ridges or crests. Rocky...for rock conditions and flat topography. Their value...2219-2229. Building Seismic Safety Council. NEHRP Recommended......

Simone Barani; Marco Massa; Sara Lovati; Daniele Spallarossa

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Electrical Stimulation of the Human Cochlea  

Science Journals Connector (OSTI)

... and Scheiber1, and since confirmed2,3,4, that stimulation of the human cochlea by audio-frequency alternating currents results in a sensation of tone corresponding in pitch to the frequency ... considered to provide confirmation of the movement theory of excitation of the human cochlea by audio-frequency electrical stimulation. ...

C. S. HALLPIKE; H. HARTRIDGE

1937-01-30T23:59:59.000Z

342

Background noise spectra of global seismic stations  

SciTech Connect (OSTI)

Over an extended period of time station noise spectra were collected from various sources for use in estimating the detection and location performance of global networks of seismic stations. As the database of noise spectra enlarged and duplicate entries became available, an effort was mounted to more carefully select station noise spectra while discarding others. This report discusses the methodology and criteria by which the noise spectra were selected. It also identifies and illustrates the station noise spectra which survived the selection process and which currently contribute to the modeling efforts. The resulting catalog of noise statistics not only benefits those who model network performance but also those who wish to select stations on the basis of their noise level as may occur in designing networks or in selecting seismological data for analysis on the basis of station noise level. In view of the various ways by which station noise were estimated by the different contributors, it is advisable that future efforts which predict network performance have available station noise data and spectral estimation methods which are compatible with the statistics underlying seismic noise. This appropriately requires (1) averaging noise over seasonal and/or diurnal cycles, (2) averaging noise over time intervals comparable to those employed by actual detectors, and (3) using logarithmic measures of the noise.

Wada, M.M.; Claassen, J.P.

1996-08-01T23:59:59.000Z

343

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

SciTech Connect (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

344

Ultrasonic-to-seismic measurements of shale anisotropy in the North sea well  

SciTech Connect (OSTI)

An extensive data set was collected in a North sea well for the purposes of characterizing the anisotropic elastic properties of the shales. The data set included extensive VSP (Verticle Seismic Profile) surveys, a full logging suite including DSI (Dipole Shear Sonic Imager), and whole core analysis. A walkway VSP survey collected using Schlumberger`s ASI (Array Seismic Imager) tool, was used to estimate the anisotropic elastic properties of the North Sea shale. DSI waveforms were analyzed for depth continuous compressional and shear wave velocities. The core was analyzed for anisotropic elastic properties at in situ overburden and pore pressures. The measurements were taken at ultrasonic frequencies using transducers with a bandwidth approximately from 100 to 900 kHz. Comparisons were made of the P and S wave velocities determined at ultrasonic frequencies in the lab with the sonic frequency DSI measurements and seismic frequency P and S wave velocities estimated from the rig source VSP. Finally, traveltimes acquired with the walkway VSP survey were inverted for the TI elastic parameters of the North Sea shale and compared with the laboratory estimations.

Hornby, B.E.; Miller, D.E.; Christie, P.A.F. [and others

1995-12-31T23:59:59.000Z

345

Paleostresses of the Groningen area, the Netherlands—Results of a seismic based structural reconstruction  

Science Journals Connector (OSTI)

We describe a novel workflow to reconstruct paleostresses in the subsurface where the traditional outcrop-based method that uses fault slip measurements is not possible. We use 3D seismic data and structural restoration to determine fault surfaces and slip vectors. These data are then used as input for paleostress-reconstruction algorithms. The study area of ca. 750 km2 is situated in the Groningen Block, the Netherlands. Excellent quality 3D seismic data were used to interpret 11 horizons and approximately 80 faults between the Tertiary and the Top Rotliegend. Indicators of fault slip direction are fault undulations, sedimentary structures offset by faults and shapes of horizon cut-outs. These indicators were used as a basis of 3D restoration of the interpreted horizons. A stepwise restoration approach was chosen that removed younger deformation to obtain slip vectors for older deformation events. In a following work step, Numeric Dynamic Analysis (NDA) was used to calculate paleostress tensors for the Middle and Lower Tertiary, Upper Cretaceous and Upper Rotliegend sequences. The results presented in this paper are consistent with existing paleostress interpretations for NW Europe; however, in contrast to previous studies they are derived from a subsurface volume where paleostress information was lacking until now. Issues that need further study include the effect of the size of the study area on the assumptions of a homogenous stress field, and an analysis of the ambiguity of the interpretation of fault slip indicators on 3D seismic data.

Heijn W. van Gent; Stefan Back; Janos L. Urai; Peter A. Kukla; Klaus Reicherter

2009-01-01T23:59:59.000Z

346

Digital electronic bone growth stimulator  

DOE Patents [OSTI]

The present invention relates to the electrical treatment of biological tissue. In particular, the present invention discloses a device that produces discrete electrical pulse trains for treating osteoporosis and accelerating bone growth. According to its major aspects and broadly stated, the present invention consists of an electrical circuit configuration capable of generating Bassett-type waveforms shown with alternative signals provide for the treatment of either fractured bones or osteoporosis. The signal generator comprises a quartz clock, an oscillator circuit, a binary divider chain, and a plurality of simple, digital logic gates. Signals are delivered efficiently, with little or no distortion, and uniformly distributed throughout the area of injury. Perferably, power is furnished by widely available and inexpensive radio batteries, needing replacement only once in several days. The present invention can be affixed to a medical cast without a great increase in either weight or bulk. Also, the disclosed stimulator can be used to treat osteoporosis or to strengthen a healing bone after the cast has been removed by attaching the device to the patient`s skin or clothing.

Kronberg, J.W.

1993-01-01T23:59:59.000Z

347

Seismic Rayleigh waves on an exponentially graded, orthotropic half-space  

Science Journals Connector (OSTI)

...Society 8 February 2007 research-article Seismic Rayleigh waves on an exponentially graded...Efforts at modelling the propagation of seismic waves in half-spaces with continuously...inhomogeneous media|Rayleigh waves|seismic anisotropy|seismic modelling|surface...

2007-01-01T23:59:59.000Z

348

Optimisation of seismic network design: Application to a geophysical international lunar network  

E-Print Network [OSTI]

Optimisation of seismic network design: Application to a geophysical international lunar network. Informations about lunar seismicity and seismic subsurface models from the Apollo missions are used as a priori information in this study to optimise the geometry of future lunar seismic networks in order to best resolve

Sambridge, Malcolm

349

ANALYSIS OF DAMAGE TO WASTE PACKAGES CAUSED BY SEISMIC EVENTS DURING POST-CLOSURE  

SciTech Connect (OSTI)

This paper presents methodology and results of an analysis of damage due to seismic ground motion for waste packages emplaced in a nuclear waste repository at Yucca Mountain, Nevada. A series of three-dimensional rigid body kinematic simulations of waste packages, pallets, and drip shields subjected to seismic ground motions was performed. The simulations included strings of several waste packages and were used to characterize the number, location, and velocity of impacts that occur during seismic ground motion. Impacts were categorized as either waste package-to-waste package (WP-WP) or waste package-to-pallet (WP-P). In addition, a series of simulations was performed for WP-WP and WP-P impacts using a detailed representation of a single waste package. The detailed simulations were used to determine the amount of damage from individual impacts, and to form a damage catalog, indexed according to the type, angle, location and force/velocity of the impact. Finally, the results from the two analyses were combined to estimate the total damage to a waste package that may occur during an episode of seismic ground motion. This study addressed two waste package types, four levels of peak ground velocity (PGV), and 17 ground motions at each PGV. Selected aspects of waste package degradation, such as effective wall thickness and condition of the internals, were also considered. As expected, increasing the PGV level of the vibratory ground motion increases the damage to the waste packages. Results show that most of the damage is caused by WP-P impacts. TAD-bearing waste packages with intact internals are highly resistant to damage, even at a PGV of 4.07 m/s, which is the highest level analyzed.

Alves, S W; Blair, S C; Carlson, S R; Gerhard, M; Buscheck, T A

2008-05-27T23:59:59.000Z

350

CX-006965: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

65: Categorical Exclusion Determination 65: Categorical Exclusion Determination CX-006965: Categorical Exclusion Determination Provide Design to Install a Seismic Switch to Shut Down Both Supply Fans and Both Room Exhaust Fans During a Seismic Event CX(s) Applied: B2.5 Date: 09/16/2011 Location(s): Aiken, South Carolina Office(s): Environmental Management, National Energy Technology Laboratory As a result of the upgrade of the HB-Line Documented Safety Analysis/Technical Safety Requirements to DOE-STD-3009, several events require protection to prevent a radiological release. Consolidated Hazards Analysis Process (CHAP) for the HB-Line Documented Safety Basis Upgrade (U), U-CHA-H-00003, includes two specific events HB-7-001, Earthquake with subsequent fire and post seismic hydrogen explosions in process vessels and

351

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.

352

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

353

Seismic Attenuation Inversion with t* Using tstarTomog.  

SciTech Connect (OSTI)

Seismic attenuation is defined as the loss of the seismic wave amplitude as the wave propagates excluding losses strictly due to geometric spreading. Information gleaned from seismic waves can be utilized to solve for the attenuation properties of the earth. One method of solving for earth attenuation properties is called t*. This report will start by introducing the basic theory behind t* and delve into inverse theory as it pertains to how the algorithm called tstarTomog inverts for attenuation properties using t* observations. This report also describes how to use the tstarTomog package to go from observed data to a 3-D model of attenuation structure in the earth.

Preston, Leiph

2014-09-01T23:59:59.000Z

354

Estimation of Parigi reservoir characteristics using seismic attributes, AVO analysis and AVO inversion, and seismic inversion  

SciTech Connect (OSTI)

In the carbonate reservoir, the gas was trapped in the cavity of the formation. First of all, to identify the cavity as the distribution of the cavity or porous zone will be done by reflection strength and instantaneous frequency from the seismic attribute analysis. After the zone has been identified, the existing gas and the value of porosity can be estimated using AVO analysis and AVO inversion technique. This idea was applied to the carbonate reservoir within the Parigi Formation in the Northwest Java Basin (Indonesia) by Santoso et al. The result shows a clear zone of high reflection strength and low instantaneous frequency in the carbonate build up. The porosity estimated by AVO inversion gives a value of the porosity about 38% and the Poisson`s ratio around 0.22-0.26. This paper is continuation of Santoso et al. study. It is done by the delineation of the porosity which can be displayed by the acoustic impedance section as a result of seismic inversion process. The delineation of the reservoir characters to the horizontal direction as previous study gives around a similar value as shown by acoustic impedance value. When these results were compared to the borehole data in the location, they are very close. Therefore this idea has given a satisfactory result in estimating porosity from seismic data and delineating the carbonate reservoir away from the borehole.

Santoso, D.; Hendrajaya, L.; Watkins, J.S. [and others

1995-12-31T23:59:59.000Z

355

Stimulation Technologies for Deep Well Completions  

SciTech Connect (OSTI)

The Department of Energy (DOE) is sponsoring the Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies conducted a study to evaluate the stimulation of deep wells. The objective of the project was to review U.S. deep well drilling and stimulation activity, review rock mechanics and fracture growth in deep, high-pressure/temperature wells and evaluate stimulation technology in several key deep plays. This report documents results from this project.

Stephen Wolhart

2005-06-30T23:59:59.000Z

356

Deep-Brain Stimulation for Parkinson's Disease  

Science Journals Connector (OSTI)

...are related to electrical stimulation and may be addressed by adjustment of device programming or discontinuation of therapy. Neurologic side effects of deep-brain stimulation include cognitive impairment, memory deficits, difficulties with speech, disequilibrium, dysphagia, and motor and sensory disturbances... A 72-year-old man with Parkinson's disease is referred for consideration of deep-brain stimulation, which involves the implantation of electrodes in one of the nuclei of the basal ganglia and can result in significant improvement in some symptoms of Parkinson's disease.

Okun M.S.

2012-10-18T23:59:59.000Z

357

The sensitivity of seismic responses to gas hydrates  

SciTech Connect (OSTI)

The sensitivity of seismic reflection coefficients and amplitudes, and their variations with changing incidence angles and offsets, was determined with respect to changes in the parameters which characterize marine sediments containing gas hydrates. Using the results of studies of ice saturation effects in permafrost soils, we have introduced rheological effects of hydrate saturation. The replacement of pore fluids in highly porous and unconsolidated marine sediments with crystalline gas hydrates, increases the rigidity of the sediments, and alters the ratio of compressional/shear strength ratio. This causes Vp/Vs ratio variations which have an effect on the amplitudes of P-wave and S-wave reflections. Analysis of reflection coefficient functions has revealed that amplitudes are very sensitive to porosity estimates, and errors in the assumed model porosity can effect the estimates of hydrate saturation. Additionally, we see that the level of free gas saturation is difficult to determine. A review of the effects of free gas and hydrate saturation on shear wave arrivals indicates that far-offset P to S wave converted arrivals may provide a means of characterizing hydrate saturations. Complications in reflection coefficient and amplitude modelling can arise from gradients in hydrate saturation levels and from rough sea floor topography. An increase in hydrate saturation with depth in marine sediments causes rays to bend towards horizontal and increases the reflection incidence angles and subsequent amplitudes. This effect is strongly accentuated when the vertical separation between the source and the hydrate reflection horizon is reduced. The effect on amplitude variations with offset due to a rough sea floor was determined through finite difference wavefield modelling. Strong diffractions in the waveforms add noise to the amplitude versus offset functions.

Foley, J.E.; Burns, D.R.

1992-08-01T23:59:59.000Z

358

The sensitivity of seismic responses to gas hydrates. Final report  

SciTech Connect (OSTI)

The sensitivity of seismic reflection coefficients and amplitudes, and their variations with changing incidence angles and offsets, was determined with respect to changes in the parameters which characterize marine sediments containing gas hydrates. Using the results of studies of ice saturation effects in permafrost soils, we have introduced rheological effects of hydrate saturation. The replacement of pore fluids in highly porous and unconsolidated marine sediments with crystalline gas hydrates, increases the rigidity of the sediments, and alters the ratio of compressional/shear strength ratio. This causes Vp/Vs ratio variations which have an effect on the amplitudes of P-wave and S-wave reflections. Analysis of reflection coefficient functions has revealed that amplitudes are very sensitive to porosity estimates, and errors in the assumed model porosity can effect the estimates of hydrate saturation. Additionally, we see that the level of free gas saturation is difficult to determine. A review of the effects of free gas and hydrate saturation on shear wave arrivals indicates that far-offset P to S wave converted arrivals may provide a means of characterizing hydrate saturations. Complications in reflection coefficient and amplitude modelling can arise from gradients in hydrate saturation levels and from rough sea floor topography. An increase in hydrate saturation with depth in marine sediments causes rays to bend towards horizontal and increases the reflection incidence angles and subsequent amplitudes. This effect is strongly accentuated when the vertical separation between the source and the hydrate reflection horizon is reduced. The effect on amplitude variations with offset due to a rough sea floor was determined through finite difference wavefield modelling. Strong diffractions in the waveforms add noise to the amplitude versus offset functions.

Foley, J.E.; Burns, D.R.

1992-08-01T23:59:59.000Z

359

Seismic amplitude anomalies at Mestena Grande field  

SciTech Connect (OSTI)

Mestena Grande field is located in northeast Jim Hogg County, Texas. Gas and condensate are produced from the middle lobe of the middle Eocene Queen City Formation. The Queen City is approximately 100 ft thick and the middle lobe, the main reservoir, is only 30 ft thick, which is well below tuning thickness. Porosities in the producing sands are generally 15-25% and permeabilities are usually 15-25 md, the maximum being about 80 md. The most recent seismic data exhibit amplitude anomalies that have some correspondence with the production. The strongest amplitudes are from the vicinity of the better wells and increase with offset. Most of the dry holes are on weak amplitudes that decrease with offset. Modeling the AVO response of a productive well, however, has predicted an amplitude decrease with offset. This disagreement is attributed to the lack of accurate shear wave velocities and the very thinly laminated sands.

Burnett, R. (Union Texas Petroleum, Houston, TX (USA))

1989-09-01T23:59:59.000Z

360

Fracture Evolution Following a Hydraulic Stimulation within an...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir Fracture Evolution...

Note: This page contains sample records for the topic "determination seismic stimulation" 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

Fracture Evolution Following a Hydraulic Stimulation within an...  

Broader source: Energy.gov (indexed) [DOE]

Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir DOE Geothermal Peer Review...

362

Electron-Stimulated Production of Molecular Oxygen in Amorphous...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Water. Electron-Stimulated Production of Molecular Oxygen in Amorphous Solid Water. Abstract: The low-energy, electron-stimulated production of molecular oxygen from pure amorphous...

363

Stimulating Energy Efficiency Action in States | Department of...  

Energy Savers [EERE]

Stimulating Energy Efficiency Action in States Stimulating Energy Efficiency Action in States During Fiscal Years 2010-2013, the U.S. Department of Energy's (DOE) State Energy...

364

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

365

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

366

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

367

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

368

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.

369

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

370

Rules and Regulations Governing Geophysical, Seismic or Other Type  

Broader source: Energy.gov (indexed) [DOE]

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

371

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

372

SEISMIC CAPACITY OF THREADED, BRAZED AND GROOVED PIPE JOINTS  

Broader source: Energy.gov [DOE]

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

373

Short-period seismic rotations and translations recorded by Rotaphone  

E-Print Network [OSTI]

-period Rotaphone records of events induced by natural and/or anthropogenic sources 31 5.1 Records of quarry blasts Rotation to translation relations 39 7 The problem of seismic translational components being contaminated

Cerveny, Vlastislav

374

Anisotropy in multi-offset deep-crustal seismic experiments  

Science Journals Connector (OSTI)

......wide-angle models when the Earth is anisotropic. It is equally important...introduced by interpreting anisotropic seismic data with isotropic...The elastic anisotropy of shales, J. geophys. Res., 99...seismology over azimuthally anisotropic media, Geophysics, 53......

K. Jones; M. Warner; J. Brittan

1999-08-01T23:59:59.000Z

375

Rapid Spatial Distribution Seismic Loss Analysis for Multistory Buildings  

E-Print Network [OSTI]

Tall building frames that respond to large seismic ground motions tend to have significant spatial variability of damage over their height, often with a concentration of that damage in the lower stories. In spite of this spatial variability...

Deshmukh, Pankaj Bhagvatrao

2012-07-16T23:59:59.000Z

376

Seismic fragility estimates for reinforced concrete framed buildings  

E-Print Network [OSTI]

of the GLD RC frame buildings, the columns of the 2 and 3 story buildings are retrofitted by column strengthening. Fragility estimates developed for the retrofitted buildings show the effectiveness of the retrofit technique by the improved seismic performance...

Ramamoorthy, Sathish Kumar

2007-04-25T23:59:59.000Z

377

Evaluation methodology for structures subjected to seismic loading  

E-Print Network [OSTI]

and in the evaluation of existing buildings and retrofit methods. Capacity curves for the overall structure and for each story level are established from an inelastic pushover analysis. The pushover analysis is based on stiffness dependent story shear demands. Seismic...

O'Boyle, Margaret

2012-06-07T23:59:59.000Z

378

Modeling of Seismic Signatures of Carbonate Rock Types  

E-Print Network [OSTI]

Carbonate reservoirs of different rock types have wide ranges of porosity and permeability, creating zones with different reservoir quality and flow properties. This research addresses how seismic technology can be used to identify different...

Jan, Badr H.

2011-02-22T23:59:59.000Z

379

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

Broader source: Energy.gov (indexed) [DOE]

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...

380

Advanced Seismic Probabilistic Risk Assessment Demonstration Project Plan  

SciTech Connect (OSTI)

Idaho National Laboratories (INL) has an ongoing research and development (R&D) project to remove excess conservatism from seismic probabilistic risk assessments (SPRA) calculations. These risk calculations should focus on providing best estimate results, and associated insights, for evaluation and decision-making. This report presents a plan for improving our current traditional SPRA process using a seismic event recorded at a nuclear power plant site, with known outcomes, to improve the decision making process. SPRAs are intended to provide best estimates of the various combinations of structural and equipment failures that can lead to a seismic induced core damage event. However, in general this approach has been conservative, and potentially masks other important events (for instance, it was not the seismic motions that caused the Fukushima core melt events, but the tsunami ingress into the facility).

Justin Coleman

2014-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

ANZA Real-time Seismic Network The ANZA Broadband and  

E-Print Network [OSTI]

SCI2 HWB FSEFLV MTRP USA Mexico USA Mexico Figure 1. The ANZA seismic as AC power, telephone or computer communications. Each station can operate using solar power and all

Vernon, Frank

382

Seismic rehabilitation of wood diaphragms in unreinforced masonary buildings  

E-Print Network [OSTI]

objectives: (1) assessing the adequacy of current seismic rehabilitation guidelines for evaluating existing wood diaphragms in pre-1950's URM buildings and for designing necessary retrofits; and (2) evaluating the effect of diaphragm retrofits, as designed...

Grubbs, Amber Jo

2002-01-01T23:59:59.000Z

383

Seismic Monitoring a Critical Step in EGS Development  

Broader source: Energy.gov [DOE]

The ability to accurately locate and characterize the release of seismic energy, generated from micro earthquakes(MEQ) is of paramount importance to the development and monitoring of EGS. A small innovative business, MagiQTechnologies Inc. has devel

384

Seismic evolution of low/intermediate mass PMS stars  

E-Print Network [OSTI]

This article presents a study of the evolution of the internal structure and seismic properties expected for low/intermediate mass Pre-Main Sequence (PMS) stars. Seismic and non-seismic properties of PMS stars were analysed. This was done using 0.8 to 4.4M$_\\odot$ stellar models at stages ranging from the end of the Hayashi track up to the Zero-Age Main-Sequence (ZAMS). This research concludes that, for intermediate-mass stars (M$>$1.3M$_\\odot$), diagrams comparing the effective temperature ($T_{eff}$) against the small separation can provide an alternative to Christensen-Dalsgaard (C-D) diagrams. The impact of the metal abundance of intermediate mass stars (2.5-4.4M$_\\odot$) has over their seismic properties is also evaluated.

F. J. G. Pinheiro

2007-12-05T23:59:59.000Z

385

A Bayesian framework for fracture characterization from surface seismic data  

E-Print Network [OSTI]

We describe a methodology for quantitatively characterizing the fractured nature of a hydrocarbon or geothermal reservoir from surface seismic data under a Bayesian inference framework. Fractures provide pathways for fluid ...

Zamanian, S. Ahmad

2012-01-01T23:59:59.000Z

386

Progress in Fiber Optical Acoustic and Seismic Sensing  

Science Journals Connector (OSTI)

A review of the progress in fiber optic acoustic and seismic sensor systems is presented. Common advancements in areas such as multiplexing are covered as well as specific progress in...

Kirkendall, Clay; Cole, James H; Tveten, Alan B; Dandridge, Anthony

387

Seismic protection of critical infrastructures through innovative technologies  

Science Journals Connector (OSTI)

Development of new technologies for seismic protection will better support the sustainable urban systems. The paper focuses on development of an innovative technology for seismic protection of bridges using smart materials. The seismic protection of structures with the use of special devices is widely accepted as a very effective technique, both for new constructions and for retrofitting of existing ones. Shape memory alloys show the potential to eliminate the limitations of the present technologies, presenting broader application domain. Damper cum restraining device with recentering capabilities has been developed within the laboratory and shake table experiments were conducted on an equivalent SDOF system for a specific narrow band spectrum. The model was subjected to a strong resonant earthquake ground motion in the horizontal direction and analytical investigations were carried out. The damper is found to be very effective for seismic performance enhancement of critical facilities like bridges offering great benefits for the sustainable development of urban systems.

R. Sreekala; N. Gopalakrishnan; K. Muthumani; K. Sathishkumar; G.V. Rama Rao; Nagesh R. Iyer

2013-01-01T23:59:59.000Z

388

A Bayesian hierarchical method for multiple-event seismic location  

Science Journals Connector (OSTI)

......demonstrate BAYHLoc using the set of Nevada Test Site nuclear explosions, for which...location|multiple-event|Nevada Test Site|seismic|stochastic| INTRODUCTION...The Walter (2004) data set of Nevada Test Site (NTS) explosions (Fig. 2a......

Stephen C. Myers; Gardar Johannesson; William Hanley

2007-12-01T23:59:59.000Z

389

Seismic characterization of fractured reservoirs using 3D double beams  

E-Print Network [OSTI]

We propose an efficient target-oriented method to characterize seismic properties of fractured reservoirs: the spacing between fractures and the fracture orientation. We use both singly scattered and multiply scattered ...

Zheng, Yingcai

2012-01-01T23:59:59.000Z

390

3-D Seismic Methods for Shallow Imaging Beneath Pavement  

E-Print Network [OSTI]

The research presented in this dissertation focuses on survey design and acquisition of near-surface 3D seismic reflection and surface wave data on pavement. Increased efficiency for mapping simple subsurface interfaces ...

Miller, Brian

2013-05-31T23:59:59.000Z

391

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

Open Energy Info (EERE)

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...

392

Integrated seismic studies at the Rye Patch geothermal reservoir...  

Open Energy Info (EERE)

studies at the Rye Patch geothermal reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Integrated seismic studies at the Rye Patch...

393

Simulation of anisotropic wave propagation in Vertical Seismic Profiles  

E-Print Network [OSTI]

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...

Durussel, Vincent Bernard

2004-09-30T23:59:59.000Z

394

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

395

COLLOQUIUM: Seismic Imaging and Inversion Based on Spectral-Element...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

shear attenuation and impedance contrasts. We apply this method to study seismic inverse problems at various scales, from exploration-scale full-waveform inversion to global-scale...

396

Third Quarter Hanford Seismic Report for Fiscal Year 2008  

SciTech Connect (OSTI)

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, fourteen local earthquakes were recorded during the third quarter of fiscal year 2008. The largest event recorded by the network during the third quarter (May 18, 2008 - magnitude 3.7 Mc) was located approximately 17 km east of Prosser at a depth of 20.5 km. With regard to the depth distribution, five earthquakes occurred at shallow depths (less than 4 km, most likely in the Columbia River basalts), six 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 crystalline basement. Geographically, eight earthquakes occurred in swarm areas and six earthquakes were classified as random events. The largest event recorded by the network during the third quarter occurred on May 18 (magnitude 3.7 Mc) and was located approximately 17 km east of Prosser at a depth of 20.5 km. This earthquake was the highest magnitude event recorded in the 46-47 N. latitude / 119-120 W. longitude sector since 1975. The May 18 event, not reported as being felt on the Hanford site or causing any damage, was communicated to the PNNL Operations Center per HSAP communications procedures. The event is not considered to be significant with regard to site safety and not unprecedented given the site’s seismic history. The Hanford strong motion accelerometer (SMA) stations at the 200 East Area, 300 Area, and the 400 Area were triggered by the May 18 event. The reportable action level of 2% g for Hanford facilities is approximately 12 times larger than the peak acceleration (0.17%) observed at the 300 Area SMA station and no action was required.

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

2008-09-01T23:59:59.000Z

397

First Quarter Hanford Seismic Report for Fiscal Year 2001  

SciTech Connect (OSTI)

Hanford Seismic Monitoring provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network (HSN) for the U.S. Department of Energy and its contractors. Hanford Seismic Monitoring also 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 HSN and the Eastern Washington Regional Network (EWRN) consist of 41 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Monitoring staff. For the HSN, there were 477 triggers during the first quarter of fiscal year (FY) 2001 on the data acquisition system. Of these triggers, 176 were earthquakes. Forty-five earthquakes were located in the HSN area; 1 earthquake occurred in the Columbia River Basalt Group, 43 were earthquakes in the pre-basalt sediments, and 1 was earthquakes in the crystalline basement. Geographically, 44 earthquakes occurred in swarm areas, 1 earthquake was on a major structure, and no earthquakes were classified as random occurrences. The Horse Heaven Hills earthquake swarm area recorded all but one event during the first quarter of FY 2001. The peak of the activity occurred over December 12th, 13th, and 14th when 35 events occurred. No earthquakes triggered the Hanford Strong Motion Accelerometers during the first quarter of FY 2001.

Hartshorn, Donald C.; Reidel, Stephen P.; Rohay, Alan C.; Valenta, Michelle M.

2001-02-27T23:59:59.000Z

398

Rayleigh wave filter for three-component seismic data  

E-Print Network [OSTI]

RAYLEIGH WAVE FILTER FOR THREE ? COMPONENT SEISMIC DATA A Thesis by SYED ALI ASIF ZAIDI Submitted to the Office of Graduate Studies of Texas A&M Lrniversity in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1991 Major Subject: Geophysics RAYLEIGH WAVE FILTER FOR THREE ? COMPONENT SEISMIC DATA A Thesis SYED ALI ASIF ZAIDI Approved as to style and content by: Steven . Harder air of Committee) Joel S. Watkins (Member) Ronald M. Brimhall (1...

Zaidi, Syed Ali Asif

2012-06-07T23:59:59.000Z

399

Seismic stratigraphy and the evolutionary history of Shatsky Plateau  

E-Print Network [OSTI]

SEISMIC STRATIGRAPHY AND THE EVOLUTIONARY HISTORY OF SHATSKY PLATEAU A Thesis by YU-HSIN CHEN Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December... 1984 Major Subject: Oceanography SEISMIC STRATIGRAPHY AND THE EVOLUTIONARY HISTORY OF SHATSKY PLATEAU A Thesis by YU-HSIN CHEN Approved as to style and content by (Chairman of Committee) Me er) (M er) d'7 (Member) Head of Department...

Chen, Yu-Hsin

2012-06-07T23:59:59.000Z

400

4D seismic data acquisition method during coal mining  

Science Journals Connector (OSTI)

In order to observe overburden media changes caused by mining processing, we take the fully-mechanized working face of the BLT coal mine in Shendong mine district as an example to develop a 4D seismic data acquisition methodology during coal mining. The 4D seismic data acquisition is implemented to collect 3D seismic data four times in different periods, such as before mining, during the mining process and after mining to observe the changes of the overburden layer during coal mining. The seismic data in the research area demonstrates that seismic waves are stronger in energy, higher in frequency and have better continuous reflectors before coal mining. However, all this is reversed after coal mining because the overburden layer has been mined, the seismic energy and frequency decrease, and reflections have more discontinuities. Comparing the records collected in the survey with those from newly mined areas and other records acquired in the same survey with the same geometry and with a long time for settling after mining, it clearly shows that the seismic reflections have stronger amplitudes and are more continuous because the media have recovered by overburden layer compaction after a long time of settling after mining. By 4D seismic acquisition, the original background investigation of the coal layers can be derived from the first records, then the layer structure changes can be monitored through the records of mining action and compaction action after mining. This method has laid the foundation for further research into the variation principles of the overburden layer under modern coal-mining conditions.

Wen-Feng Du; Su-Ping Peng

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

"Seismic Behavior and Design of Steel Shear Walls", A. Astaneh-Asl, SEAONC Seminar, November 2001, San Francisco. of 181 Seismic Behavior and Design of Steel Shear Walls  

E-Print Network [OSTI]

"Seismic Behavior and Design of Steel Shear Walls", A. Astaneh-Asl, SEAONC Seminar, November 2001, San Francisco. of 181 Seismic Behavior and Design of Steel Shear Walls By Abolhassan Astaneh-Asl, Ph.ce.berkeley.edu/~astaneh Introduction Steel plate shear wall systems have been used in recent years in highly seismic areas to resist

Astaneh-Asl, Abolhassan

402

A new seismic hazard analysis using FOSM algorithms  

Science Journals Connector (OSTI)

Abstract From recent lessons, it is evident that earthquake prediction is immature and impractical as of now. Under the circumstances, seismic hazard analysis is considered a more practical approach for earthquake hazard mitigation, by estimating the annual rate of earthquake ground motions (or seismic hazard) based on seismicity and other geological evidences. Like other earthquake studies for the high-seismicity region around Taiwan, this study aims to conduct a new seismic hazard assessment for the region using the well-established FOSM (first-order second-moment) algorithm, on the record of 55,000 earthquakes observed in the past 110 years. The new seismic hazard analysis from a different perspective shows that the annual rate for earthquake-induced PGA to exceed the current design value (i.e., 0.23g) in two major cities in Taiwan should be relatively low, with it no greater than 0.0006 per year. Besides, the FOSM estimates were found very close to those with Monte Carlo Simulation (MCS), mainly because the skewness of the three random variables (i.e., earthquake magnitude, location, and model error) considered in the probabilistic analysis is not very large.

J.P. Wang; Yih-Min Wu

2014-01-01T23:59:59.000Z

403

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

404

Dynamics of stimulated L ? H transitions  

SciTech Connect (OSTI)

We report on model studies of stimulated L ? H transitions [K. Miki et al., Phys. Rev. Lett. 110, 195002 (2013)]. These studies use a reduced mesoscale model. Model studies reveal that L ? H transition can be triggered by particle injection into a subcritical state (i.e., Pstimulated transition. For low ambient heating, strong injection is predicted to trigger a transient turbulence collapse. Repetitive injection at a period less than the lifetime of the collapsed state can thus maintain the turbulence collapse and so sustain a driven H-mode-like state. The total number of particles required to induce a transition by either injection or gas puffing is estimated. Results indicate that the total number of injected particles required is much smaller than that required for a transition by gas puffing. We thus show that internal injection is more efficient than gas puffing of comparable strength. We also observe that zonal flows do not play a critical role in stimulated transitions. For spontaneous transitions, the spike of the Reynolds work of turbulence on the zonal flow precedes the spike in the mean electric field shear. In contrast, we show that the two are coincident for stimulated transitions, suggesting that there is no causal link between zonal and mean flows for stimulated transitions.

Miki, K. [WCI Center for Fusion Theory, National Fusion Research Institute, Daejeon 305-333 (Korea, Republic of) [WCI Center for Fusion Theory, National Fusion Research Institute, Daejeon 305-333 (Korea, Republic of); Center for Computational Science and e-Systems, Japan Atomic Energy Agency, Chiba 277-8587 (Japan); Diamond, P. H.; Xiao, W. W. [WCI Center for Fusion Theory, National Fusion Research Institute, Daejeon 305-333 (Korea, Republic of) [WCI Center for Fusion Theory, National Fusion Research Institute, Daejeon 305-333 (Korea, Republic of); Center for Momentum Transport and Flow Organization, University of California, San Diego, California 92093 (United States); Hahn, S.-H. [KSTAR Team, National Fusion Research Institute, Daejeon 305-333 (Korea, Republic of)] [KSTAR Team, National Fusion Research Institute, Daejeon 305-333 (Korea, Republic of); Gürcan, Ö. D. [LPP, Ecole Polytechnique, CNRS, 92118 Palaiseau Cedex (France)] [LPP, Ecole Polytechnique, CNRS, 92118 Palaiseau Cedex (France); Tynan, G. R. [Center for Momentum Transport and Flow Organization, University of California, San Diego, California 92093 (United States)] [Center for Momentum Transport and Flow Organization, University of California, San Diego, California 92093 (United States)

2013-08-15T23:59:59.000Z

405

Non-Seismic Geophysical Approaches to Monitoring  

SciTech Connect (OSTI)

This chapter considers the application of a number of different geophysical techniques for monitoring geologic sequestration of CO2. The relative merits of the seismic, gravity, electromagnetic (EM) and streaming potential (SP) geophysical techniques as monitoring tools are examined. An example of tilt measurements illustrates another potential monitoring technique, although it has not been studied to the extent of other techniques in this chapter. This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques on two synthetic modeling scenarios. The first scenario represents combined CO2 enhance oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. The second scenario is of a pilot DOE CO2 sequestration experiment scheduled for summer 2004 in the Frio Brine Formation in South Texas, USA. Numerical flow simulations of the CO2 injection process for each case were converted to geophysical models using petrophysical models developed from well log data. These coupled flow simulation geophysical models allow comparrison of the performance of monitoring techniques over time on realistic 3D models by generating simulated responses at different times during the CO2 injection process. These time-lapse measurements are used to produce time-lapse changes in geophysical measurements that can be related to the movement of CO2 within the injection interval.

Hoversten, G.M.; Gasperikova, Erika

2004-09-01T23:59:59.000Z

406

Stimulation Prediction Models | Open Energy Information  

Open Energy Info (EERE)

Stimulation Prediction Models Stimulation Prediction Models Jump to: navigation, search Geothermal ARRA Funded Projects for Stimulation Prediction Models 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":false,"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":"

407

Hanford annual first quarter seismic report, fiscal year 1998: Seismicity on and near the Hanford Site, Pasco Basin, Washington  

SciTech Connect (OSTI)

Hanford Seismic Monitoring provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network (HSN) for the US Department of Energy and its contractors. The staff also 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 an earthquake on the Hanford Site. The HSN and the Eastern Washington Regional Network (EWRN) consist of 41 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Monitoring staff. The operational rate for the first quarter of FY98 for stations in the HSN was 98.5%. The operational rate for the first quarter of FY98 for stations of the EWRN was 99.1%. For the first quarter of FY98, the acquisition computer triggered 184 times. Of these triggers 23 were local earthquakes: 7 in the Columbia River Basalt Group, and 16 in the crystalline basement. The geologic and tectonic environments where these earthquakes occurred are discussed in this report. The most significant earthquakes in this quarter were a series of six events which occurred in the Cold Creek depression (approximately 4 km SW of the 200 West Area), between November 6 and November 11, 1997. All events were deep (> 15 km) and were located in the crystalline basement. The first event was the largest, having a magnitude of 3.49 M{sub c}. Two events on November 9, 1997 had magnitudes of 2.81 and 2.95 M{sub c}, respectively. The other events had magnitudes between 0.7 and 1.2 M{sub c}.

Hartshorn, D.C.; Reidel, S.P.; Rohay, A.C.

1998-02-01T23:59:59.000Z

408

Seismic properties of a Venezuelan heavy oil in water emulsion  

SciTech Connect (OSTI)

Several procedures for the production of low-viscosity, surfactant-stabilized, easy-transportable dispersions of heavy crude oil in water-briefly, oil in water (or o/w) emulsions - have been recently patented. Some of them propose to form the o/w emulsion in the reservoir, after the injection of a mixture of water and surfactants, increasing significantly the per well daily production. Progression of the o/w emulsion front, through the reservoir to the production wells, can be monitored in seismic planar slices with successive 3D seismic surveys (413 seismic), if enough contrast exists between the seismic velocity value of the o/w emulsion and the one of the oil in place. To facilitate the analysis of the contrast, this study presents high frequency acoustic velocity measurements performed in the laboratory. The experimental setup includes two reflectors and an ultrasonic transducer with double burst train emission. The estimated velocity precision is 0.02%. The measured samples are: a Venezuelan heavy o/w emulsion, a mixture of the same heavy oil and gasoil and a saturated sandstone core containing the o/w emulsion. Additionally, seismic velocities of the actual pore fluids - live oil and five o/w emulsion - and saturated sandstone are calculated using the above laboratory measurements, Wood`s equation, and Gassman`s and Biot`s models.

Maldonado, F.; Liu, Y.; Mavko, G.; Mukerji, T. [Stanford Univ., CA (United States)

1996-08-01T23:59:59.000Z

409

Reversible rigid coupling apparatus and method for borehole seismic transducers  

DOE Patents [OSTI]

An apparatus and method of high resolution reverse vertical seismic profile (VSP) measurements is shown. By encapsulating the seismic detector and heaters in a meltable substance (such as wax), the seismic detector can be removably secured in a borehole in a manner capable of measuring high resolution signals in the 100 to 1000 hertz range and higher. The meltable substance is selected to match the overall density of the detector package with the underground formation, yet still have relatively low melting point and rigid enough to transmit vibrations to accelerometers in the seismic detector. To minimize voids in the meltable substance upon solidification, the meltable substance is selected for minimum shrinkage, yet still having the other desirable characteristics. Heaters are arranged in the meltable substance in such a manner to allow the lowermost portion of the meltable substance to cool and solidify first. Solidification continues upwards from bottom-to-top until the top of the meltable substance is solidified and the seismic detector is ready for use. To remove, the heaters melt the meltable substance and the detector package is pulled from the borehole.

Owen, Thomas E. (Helotes, TX); Parra, Jorge O. (Helotes, TX)

1992-01-01T23:59:59.000Z

410

Core Overshoot: An Improved Treatment and Constraints from Seismic Data  

E-Print Network [OSTI]

We present a comprehensive set of stellar evolution models for Procyon A in an effort to guide future measurements of both traditional stellar parameters and seismic frequencies towards constraining the amount of core overshoot in Procyon A and possibly other stars. Current observational measurements of Procyon A when combined with traditional stellar modeling only place a large upper limit on overshoot of alphaOV < 1.1. By carrying out a detailed pulsation analysis, we further demonstrate, how p- and g-mode averaged spacings can be used to gain better estimates of the core size. For both p- and g-modes, the frequency spacings for models without overshoot are clearly separated from the models with overshoot. In addition, measurements of the l=0 averaged small p-mode spacings could be used to establish Procyon A's evolutionary stage. For a fixed implementation of overshoot and under favorable circumstances, the g-mode spacings can be used to determine the overshoot extent to an accuracy of +-0.05 Hp. However, we stress that considerable confusion is added due to the unknown treatment of the overshoot region. This ambiguity might be removed by analyzing many different stars. A simple non-local convection theory developed by Kuhfuss is implemented in our stellar evolution code and contrasted with the traditional approaches. We show that this theory supports a moderate increase of the amount of convective overshoot with stellar mass of Delta(alphaOV) = +0.10 between 1.5 Msun and 15 Msun. This theory places an upper limit on Procyon A's core overshoot extent of ~0.4 Hp which matches the limit imposed by Roxburgh's integral criterion.

Christian W. Straka; Pierre Demarque; D. B. Guenther

2005-05-01T23:59:59.000Z

411

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

Broader source: Energy.gov (indexed) [DOE]

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

412

Shear wave seismic velocity profiling and depth to water table earthquake site  

E-Print Network [OSTI]

..................................................................................................... 6 Summary of seismic refraction/reflection methodsShear wave seismic velocity profiling and depth to water table ­ earthquake site response measurements for Valley County, Idaho Lee M. Liberty and Gabriel M. Gribler, Boise State University Center

Barrash, Warren

413

The CAFE experiment : a joint seismic and MT investigation of the Cascadia subduction system  

E-Print Network [OSTI]

In this thesis we present results from inversion of data using dense arrays of collocated seismic and magnetotelluric stations located in the Cascadia subduction zone region of central Washington. In the migrated seismic ...

McGary, R. Shane

2013-01-01T23:59:59.000Z

414

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

415

E-Print Network 3.0 - adaptively smoothed seismicity Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Zhan Wu, Omar J. Varela, Mrinal K. Sen, and Indrajit G. Roy. Summary: Joint Inversion of Reservoir Production Measurements and 3D Pre-Stack Seismic Data: Proof... -stack seismic...

416

Introduction to this special section: Passive seismic and microseismic—Part 2  

Science Journals Connector (OSTI)

...Energy (DOE) released a protocol addressing induced seismicity for enhanced geothermal systems (EGS) ( http://www1.eere.energy.gov/geothermal/pdfs/geothermal_seismicity_protocol_012012.pdf ) for regulators, geothermal operators...

Julie Shemeta; Bill Goodway; Mark Willis; Werner Heigl

417

Nonlinear seismic response of Mexican bridges with base isolation accounting for soil structure interaction effects  

E-Print Network [OSTI]

the effects of the nonlinear behavior of the isolation pads of the bridges on the seismic responses (accelerations, displacements, and pier seismic forces), and to study combined effects of base isolation and inertial interaction due to the presence...

Olmos Navarrete, Bertha Alejandra

2009-05-15T23:59:59.000Z

418

Sound-Recording Systems for Measuring Sound Levels During Seismic Surveys  

Science Journals Connector (OSTI)

Two new sound-recording systems were developed as part of a study on the effects of sound from seismic air guns on fish behavior. The systems were used to record ... ) at several depths and distances from the seismic

Jan Tore Øvredal; Bjorn Totland

2012-01-01T23:59:59.000Z

419

Scaring Effects in Fish and Harmful Effects on Eggs, Larvae and Fry by Offshore Seismic Explorations  

Science Journals Connector (OSTI)

A co-operating survey between a seismic vessel and a research vessel took place ... . Changes of the behaviour patterns of the fish along the course lines of the seismic vessel from immediately before to just aft...

John Dalen; Geir Magne Knutsen

1987-01-01T23:59:59.000Z

420

Effect of cumulative seismic damage and corrosion on life-cycle cost of reinforced concrete bridges  

E-Print Network [OSTI]

reinforced concrete (RC) bridges in earthquake prone regions. The approach is developed by combining cumulative seismic damage and damage associated to corrosion due to environmental conditions. Cumulative seismic damage is obtained from a low-cycle fatigue...

Kumar, Ramesh

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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

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

Office of Environmental Management (EM)

to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchhill Co., NV A 3D-3C Reflection Seismic Survey and Data...

422

Frequency dependent seismic reflection analysis: a path to new direct hydrocarbon indicators for deep water reservoirs  

E-Print Network [OSTI]

To better study frequency related e?ects such as attenuation and tuning, we developed a frequency dependent seismic re?ection analysis. Comprehensive tests on full waveform synthetics and observations from the Teal South ocean bottom seismic (OBS...

Yoo, Seung Chul

2009-06-02T23:59:59.000Z

423

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

Broader source: Energy.gov (indexed) [DOE]

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

424

CX-006567: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

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

425

Assigning Seismic Design Category to Large Reactors: A Case Study of the ATR  

Broader source: Energy.gov [DOE]

Assigning Seismic Design Category to Large Reactors: A Case Study of the ATR Stuart Jensen October 21, 2014

426

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCES  

E-Print Network [OSTI]

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCES Paul Kruger and Henry J . Ramey, Jr . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 THE GEOTHERMAL CHIMNEY MODEL . . . . . . . . . . . . . . . . . . . 3 Current Design of t h e . . . . . . . . . . . . . . . 67 Geothermal Reservoir Phy.Sica1 PIodels . . . . . . . . . . . . 73 RAD3N I N GEOTHERMAL RESERVOIRS

Stanford University

427

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCXS  

E-Print Network [OSTI]

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCXS Henry J. Ramey, Jr., and A. Louis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Stanford Geothermal Project Reports . . . . . . . . . . . . . . 69 Papers Presented a t the Second United Nations Symposium on t h e Development and Use of Geothermal Resources, May 19-29, 1975, San

Stanford University

428

Using Nanotechnology in Viscoelastic Surfactant Stimulation Fluids  

E-Print Network [OSTI]

USING NANOTECHNOLOGY IN VISCOELASTIC SURFACTANT STIMULATION FLUIDS A Thesis by MERVE RABIA GURLUK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... .......................................... 9 1.7 Kinetics of Micellization ......................................................................... 10 1.8 Nanotechnology ....................................................................................... 16...

Gurluk, Merve Rabia 1986-

2012-11-12T23:59:59.000Z

429

Computer animations stimulate contagious yawning in chimpanzees  

Science Journals Connector (OSTI)

...to three-dimensional computer animations, they probably...Field Station. The DAVE School (Digital Animation and...as well as the base grant of the National Institutes...played from a laptop computer facing the experimenters...be seen in the glass Computer animations stimulate...

2009-01-01T23:59:59.000Z

430

IMPROVING SANDSTONE MATRIX STIMULATION OF OIL  

E-Print Network [OSTI]

IMPROVING SANDSTONE MATRIX STIMULATION OF OIL WELLS BY GAS PRECONDITIONING M. A. Aggour, M. Al, Dhahran, Saudi Arabia ABSTRACT Experience has shown that for sandstone formations, oil wells respond to matrix acidizing in a different manner as compared to gas wells. For oil wells, the improvement

Abu-Khamsin, Sidqi

431

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

432

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

Broader source: Energy.gov (indexed) [DOE]

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

433

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

434

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

435

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"

436

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"

437

Seismic vulnerability assessment of a high voltage disconnect switch  

Science Journals Connector (OSTI)

Abstract This paper deals with the seismic vulnerability of high voltage equipment typically installed in electric substations. In particular, the seismic response of a 380 kV vertical disconnect switch has been investigated based on the results of an experimental campaign carried out at Roma Tre University. According to a series of non-linear analyses, the influence of the most significant parameters on the seismic behavior of this apparatus has been analyzed and the corresponding fragility curves have been evaluated by using the Effective Fragility Analysis method. The results showed a limited vulnerability of the disconnect switch, whose most critical parts are the bottom joint of the ceramic support column and the steel column base.

Fabrizio Paolacci; Renato Giannini; Silvia Alessandri; Gianmarco De Felice

2014-01-01T23:59:59.000Z

438

Seismic and geodetic studies of the Imperial Valley, California  

SciTech Connect (OSTI)

The Imperial Valley exhibits perhaps the most active current tectonism in the United States; patterns of gravitational and thermal anomalies, along with geodetic measurements, strike-slip faulting, and recent volcanism suggest that the continental crust may still be spreading (Elders et al., 1972). In recent years, the United States Geological Survey and Caltech have added new seismic stations into a dense network in the Imperial Valley to study in detail the relationship between geothermal areas and earthquakes, and to understand the tectonic processes taking place there. The purposes of this study are to: (1) examine crustal structure using recently available data on P-wave arrival times of local earthquakes; (2) examine the leveling data for evidence of tectonic subsidence or uplift; and (3) study correlations between seismicity, seismic velocity, geodetic motion, geothermal activity, and local geology to provide a more consistent picture of the tectonics of the Imperial Valley.

Jackson, D.D.

1981-05-01T23:59:59.000Z

439

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

440

Investigating the stratigraphy of an alluvial aquifer using crosswell seismic traveltime tomography  

E-Print Network [OSTI]

can be used in situations where surface seismic reflection has failed e.g., Liberty et al., 1999Investigating the stratigraphy of an alluvial aquifer using crosswell seismic traveltime tomography In this study, we investigate the use of crosswell P-wave seismic tomography to obtain spatially extensive

Barrash, Warren

Note: This page contains sample records for the topic "determination seismic stimulation" 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.


441

THE VALUE OF BOREHOLE -TO-SURFACE INFORMATION IN NEAR-SURFACE CROSSWELL SEISMIC TOMOGRAPHY  

E-Print Network [OSTI]

seismic reflection cannot (e.g. Liberty et al., 1999; Musil et al., 2002). The images producedTHE VALUE OF BOREHOLE -TO-SURFACE INFORMATION IN NEAR-SURFACE CROSSWELL SEISMIC TOMOGRAPHY Geoff J properties is important in many fields. One method that can image the seismic velocity structure

Barrash, Warren

442

Geophys. J. Int. (1999) 139, 317324 Fractal clustering of induced seismicity in The Geysers geothermal  

E-Print Network [OSTI]

geothermal area, California J. R. Henderson, D. J. Barton and G. R. Foulger Department of Geological Sciences geothermal field in California, an area where industrial activity induces seismicity. The seismicity of the build-up of the rate of water injection into the reservoir. Key words: fractal, geothermal, seismicity

Foulger, G. R.

443

Reconstruction of subsurface structure from ambient seismic noise: an example from Ketzin, Germany  

Science Journals Connector (OSTI)

......deterministic seismic responses using only passive...retrieved reflection response can be used in many...seismic reflection response can also possibly...relatively high-frequency geophones (28 Hz...at the Ketzin CO2 storage site (Forster et...passive seismic energy may be natural......

Zhuo Xu; Christopher Juhlin; Olafur Gudmundsson; Fengjiao Zhang; Can Yang; Artem Kashubin; Stefan Lüth

2012-05-01T23:59:59.000Z

444

1 Mayne & Schneider EVALUATING AXIAL DRILLED SHAFT RESPONSE BY SEISMIC CONE  

E-Print Network [OSTI]

1 Mayne & Schneider EVALUATING AXIAL DRILLED SHAFT RESPONSE BY SEISMIC CONE Paul W. Mayne1 , M using the results of seismic piezocone penetration tests (SCPTU) to provide continuous profiles of small to discuss the use of seismic piezocone testing for the evaluation of both axial capacity (obtained from

Mayne, Paul W.

445

Seismic reversal pattern for the 1999 Chi-Chi, Taiwan, MW 7.6 earthquake  

E-Print Network [OSTI]

Seismic reversal pattern for the 1999 Chi-Chi, Taiwan, MW 7.6 earthquake Yih-Min Wu a , Chien the variations in seismicity patterns in the Taiwan region before and after the Chi-Chi earthquake. We have found that the areas with relatively high seismicity in the eastern Taiwan became abnormally quiet before the Chi

Wu, Yih-Min

446

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 implications for understanding different seismic sources, earthquake structures in Indiana, and wave

Polly, David

447

Seismic cycle stress change in western Taiwan over the last M. Mouyen,1  

E-Print Network [OSTI]

Click Here for Full Article Seismic cycle stress change in western Taiwan over the last 270 years M February 2010. [1] The island of Taiwan is affected by intense seismic activity, which includes large events as the disastrous 1999 ChiChi earthquake. To improve seismic hazard assessment in this area, we

Demouchy, Sylvie

448

Constraints on backstop geometry of the southwest Ryukyu subduction based on reection seismic data  

E-Print Network [OSTI]

Constraints on backstop geometry of the southwest Ryukyu subduction based on re¯ection seismic data 1999; revised 10 May 2000 Abstract Based on the analysis of 45 seismic re¯ection pro®les, the top from the frontal part (southernmost extremity) of the Ryukyu margin. From seismic re¯ection pro®les, we

Demouchy, Sylvie

449

Ambient noise seismic imaging Journal: McGraw Hill 2008 Yearbook of Science & Technology  

E-Print Network [OSTI]

ForReview Ambient noise seismic imaging Journal: McGraw Hill 2008 Yearbook of Science & Technology List of Authors: Ritzwoller, Michael Keywords: ambient noise, seismology, seismic tomography, Rayleigh wave, Love wave, surface wave Abstract: A recent innovation in seismic imaging based on using long time

Ritzwolle, Mike

450

A study of infrasonic anisotropy and multipathing in the atmosphere using seismic networks  

Science Journals Connector (OSTI)

...and multipathing in the atmosphere using seismic networks Michael A. H. Hedlin Kristoffer...reverse time migration (RTM) with dense seismic networks for the detection and location...to infrasound through acoustic-to-seismic coupling. RTM has recently been applied...

2013-01-01T23:59:59.000Z

451

Seismic Refraction Survey in the Western Approaches to the English Channel: Preliminary Results [and Discussion  

Science Journals Connector (OSTI)

24 July 1975 research-article Seismic Refraction Survey in the Western Approaches...Avedik A. J. Smith R. A. Dardel A seismic refraction survey of the Western Approaches...hydrophones positioned on the sea floor. The seismic signal was transmitted by radio to a shipboard...

1975-01-01T23:59:59.000Z

452

Seismic signals are crucial for male mating success in a visual specialist jumping spider (Araneae: Salticidae)  

E-Print Network [OSTI]

Seismic signals are crucial for male mating success in a visual specialist jumping spider (Araneae of multicomponent seismic courtship signals in addition to and produced in concert with its multiple visual ornaments and movement displays. Here, we demonstrate the importance of these seismic signals

Hoy, Ronald R.

453

Seismic and Gravity Data from Afar in Relation to Surrounding Areas  

Science Journals Connector (OSTI)

29 October 1970 research-article Seismic and Gravity Data from Afar in Relation...triangle is bordered, to the west, by a seismic belt running along and on top of the escarpment. Seventy-five per cent of the seismic energy of the area is released along this...

1970-01-01T23:59:59.000Z

454

SEISMIC PERFORMANCE EVALUATION FOR STEEL MOMENT FRAMES By Seung-Yul Yun1  

E-Print Network [OSTI]

SEISMIC PERFORMANCE EVALUATION FOR STEEL MOMENT FRAMES By Seung-Yul Yun1 , Ronald O. Hamburger2 , C than existing buildings designed and built with older technologies. Key words: seismic behavior; seismic performance evaluation; performance-based design; earthquake engineering; steel moment frame

Sweetman, Bert

455

Analysis of Seismic Activity near Theodore Roosevelt Dam, Arizona, during the Occupation  

E-Print Network [OSTI]

E Analysis of Seismic Activity near Theodore Roosevelt Dam, Arizona, during the Occupation, and Lepolt Linkimer Online Material: Plot of viable focal mechanisms and table of regional seismic velocity model. INTRODUCTION Rate and distribution of seismic activity are important indica- tors of the overall

Fouch, Matthew J.

456

Seismic Intensity Estimation of Tall Buildings in Earthquake Early Warning System  

E-Print Network [OSTI]

Seismic Intensity Estimation of Tall Buildings in Earthquake Early Warning System M. H. Cheng & T warning system is currently being tested through the California Integrated Seismic Network (CISN) (http: earthquake early warning system, tall buildings, seismic intensity 1. INTRODUCTION In California, United

Greer, Julia R.

457

Seismic Properties of Anita Bay Dunite: an Exploratory Study of the Influence of Water  

E-Print Network [OSTI]

Seismic Properties of Anita Bay Dunite: an Exploratory Study of the Influence of Water YOSHITAKA As a pilot study of the role of water in the attenuation of seismic waves in the Earth's upper mantle, we have performed a series of seismic-frequency torsional forced-oscillation experiments on a natural

458

Seismic Modelling of the Earth's Large-Scale Three-Dimensional Structure  

Science Journals Connector (OSTI)

4 July 1989 research-article Seismic Modelling of the Earth's Large-Scale...article we describe several methods of seismic inversion and intercompare the resulting...is that the magnitude of the observed seismic anomalies is of the order expected in...

1989-01-01T23:59:59.000Z

459

Grunting for worms: seismic vibrations cause Diplocardia earthworms to emerge from the soil  

Science Journals Connector (OSTI)

...emerging decreased as the seismic signal decayed over distance...collect earthworms for fish bait. A wooden stake...earthworms respond to the seismic vibrations generated...grunting for harvesting fish bait is well known in...reports it is implied that seismic vibrations cause the...

2009-01-01T23:59:59.000Z

460

Time lapse seismic signal analysis for Cranfield, MS, EOR and CCS site Ditkof, J.1  

E-Print Network [OSTI]

EG31 Time lapse seismic signal analysis for Cranfield, MS, EOR and CCS site Ditkof, J.1 , Caspari Australia The Cranfield field located in Southwest Mississippi is an EOR and CCS project which has been-delay along a horizon below the reservoir. Keywords: time lapse, 4D seismic, CO2 sequestration, EOR, seismic

Texas at Austin, University of

Note: This page contains sample records for the topic "determination seismic stimulation" 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.


461

Autonomous buoy for seismic reflection data acquisition in the inaccessible parts of the Arctic Ocean  

E-Print Network [OSTI]

Autonomous buoy for seismic reflection data acquisition in the inaccessible parts of the Arctic Instrumentation, Bergen, Norway An autonomous buoy which collects seismic reflection data and transmits to shore of the seismic buoy (thick red, green and black lines). - we have successfully developed an autonomous buoy

Kristoffersen, Yngve

462

Seasonal modulation of seismicity in the Himalaya of Nepal L. Bollinger,1  

E-Print Network [OSTI]

Seasonal modulation of seismicity in the Himalaya of Nepal L. Bollinger,1 F. Perrier,2 J.-P. Avouac; accepted 19 March 2007; published 26 April 2007. [1] For the period 1995­2000, the Nepal seismic network. Sapkota, U. Gautam, and D. R. Tiwari (2007), Seasonal modulation of seismicity in the Himalaya of Nepal

Avouac, Jean-Philippe

463

A constrained-based optimization approach for seismic data recovery problems  

E-Print Network [OSTI]

Random and structured noise both affect seismic data, hiding the reflections of interest (primaries) that carry meaningful geophysical interpretation. When the structured noise is composed of multiple reflections, its adaptive cancellation is obtained through time-varying filtering, compensating inaccuracies in given approximate templates. The under-determined problem can then be formulated as a convex optimization one, providing estimates of both filters and primaries. Within this framework, the criterion to be minimized mainly consists of two parts: a data fidelity term and hard constraints modeling a priori information. This formulation may avoid, or at least facilitate, some parameter determination tasks, usually difficult to perform in inverse problems. Not only classical constraints, such as sparsity, are considered here, but also constraints expressed through hyperplanes, onto which the projection is easy to compute. The latter constraints lead to improved performance by further constraining the space ...

Pham, Mai Quyen; Duval, Laurent; Pesquet, Jean-Christophe

2014-01-01T23:59:59.000Z

464

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

465

Third Quarter Hanford Seismic Report for Fiscal Year 2010  

SciTech Connect (OSTI)

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

466

Testing the potential and limitations of seismic data  

E-Print Network [OSTI]

I describe the advantage of using singular value decomposition as a diagnostic tool for exploring the potential and limitations of seismic data. Using stellar models coupled with the expected errors in seismic and complementary data we can predict the precision in the stellar parameters. This in turn allows us to quantify if and to what extent we can distinguish between various descriptions of the interior physical processes. This method can be applied to a wide range of astrophysical problems, and here I present one such example which shows that the convective core overshoot parameter can be constrained with one identified mode if the pulsating component is in an eclipsing binary system.

Orlagh L. Creevey

2008-10-14T23:59:59.000Z

467

Seismic stratigraphy and structure of the Progreso Basin, Ecuador  

E-Print Network [OSTI]

. Watkins Examination of seismic, well log and magnetic data across the Progreso Basin shows that more than 5. 5 km of sediment has been deposited in the basin with a thick sedimentary wedge io the east. The basin, bounded by two prominent normal faults... and the La Cruz fault a small sub-basin l, as been formed with considerable deposition onlv during the iast period of basin developnient. Facies, structurah isochron and velocity maps were produced for each of the five units identified on the seismic...

Goyes Arroyo, Patricio

2012-06-07T23:59:59.000Z

468

Hydraulic fracture stimulation treatment of Well Baca 23. Geothermal Reservoir Well-Stimulation Program  

SciTech Connect (OSTI)

Well Stimulation Experiment No. 5 of the Geothermal Reservoir Well Stimulation Program (GRWSP) was performed on March 22, 1981 in Baca 23, located in Union's Redondo Creek Project Area in Sandoval County, New Mexico. The treatment selected was a large hydraulic fracture job designed specifically for, and utilizing frac materials chosen for, the high temperature geothermal environment. The well selection, fracture treatment, experiment evaluation, and summary of the job costs are presented herein.

Not Available

1981-06-01T23:59:59.000Z

469

Seismic reflection evidence for two phase development of Tertiary basins from east-central Nevada  

SciTech Connect (OSTI)

Two east-west seismic reflection profiles crossing Antelope Valley, Smokey Valley, Railroad Valley and Big Sand Springs Valley demonstrate the evolution of Tertiary extension from broad sags to narrow, fault-bounded basins. Seismic reflection data was acquired for the Anschutz Corporation by the Digicon Corporation during the winter of 1988/1989. Reprocessing of a 480 channel, 60 fold, dynamite source experiment enabled good imaging of the basin stratigraphy. These data suggest two distinct phases of basin development occurred, separated by a regional unconformity. The early phase is characterized by development of a broad basin riddled with many small offset normal faults. The later phase shows a narrowing of the basin and subsidence along one dominant structure, an apparent planar normal fault. The unconformity separating the two phases of extension marks a transition from broad subsidence to local asymmetric tilting that took place over a short period of time relative to sedimentation rates. Antelope Valley and Railroad Valley clearly show strong evidence for two phase development, whereas Smokey Valley represents mostly the early phase and Big Sand Springs Valley represents only the later phase of extension. The absence of dating within the basins precludes the authors from determining if the abrupt tectonic transition within the basins resulted from differences in local strain rates or amounts, or was due to changes in regional stress fields.

Liberty, L.M.; Heller, P.L.; Smithson, S.B. (Univ. of Wyoming, Laramie, WY (United States). Dept. of Geology and Geophysics)

1993-04-01T23:59:59.000Z

470

Application of Time-Lapse Seismic Monitoring for the Control and Optimization of CO2 Enhanced Oil Recovery Operations  

SciTech Connect (OSTI)

The ''Application of Time-Lapse Seismic Monitoring for the Control and Optimization of CO{sub 2} Enhanced Oil Recovery Operations'' project is investigating the potential for monitoring CO{sub 2} floods in carbonate reservoirs through the use of standard p-wave seismic data. This project will involve the use of 4D seismic (time lapse seismic) to try to observe the movement of the injected CO{sub 2} through the reservoir. The differences between certain seismic attributes, such as amplitude, will be used to detect and map the movement of CO{sub 2} within the reservoir. This technique has recently been shown to be effective in CO{sub 2} monitoring in EOR projects such as Weyborne. The project is being conducted in the Charlton 30/31 field in northern Michigan Basin which is a Silurian pinnacle reef that has completed its primary production. This field is now undergoing enhanced oil recovery using CO{sub 2}. The CO{sub 2} flood was initiated the end of 2005 when the injection of small amounts of CO{sub 2} begin in the A1 Carbonate. This injection was conducted for 2 months before being temporarily halted in order for pressure measurements to be conducted. The determination of the reservoir's porosity distribution is proving to be a significant portion of this project. In order to relate the differences observed between the seismic attributes seen on the multiple surveys and the actual location of the CO{sub 2}, a predictive reservoir simulation model had to be developed. From this model, an accurate determination of porosity within the carbonate reservoir must be obtained. For this certain seismic attributes have been investigated. The study reservoirs in the Charlton 30/31 field range from 50 to 400 acres in size. The relatively small area to image makes 3-D seismic data acquisition reasonably cost effective. Permeability and porosity vary considerably throughout the reef, thus it is essential to perform significant reservoir characterization and modeling prior to implementing a CO{sub 2} flood to maximize recovery efficiency. Should this project prove successful, the same technique could be applied across a large spectrum of the industry. In Michigan alone, the Niagaran reef play is comprised of over 700 Niagaran reefs with reservoirs already depleted by primary production. These reservoirs range in thickness from 200 to 400 ft and are at depths of 2000 to 5000 ft. Approximately 113 of these Niagaran oil fields have produced over 1 million bbls each and the total cumulative production is in excess of 300 million bbls and 1.4 Tcf. There could potentially be over 1 billion bbls of oil remaining in reefs in Michigan much of which could be mobilized utilizing techniques similar to those employed in this study.

Brian E. Toelle

2006-02-28T23:59:59.000Z

471

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

14, 2013 14, 2013 CX-010282: Categorical Exclusion Determination Low Temperature Nitrous Oxide Storage and Reduction Using Engineered Materials CX(s) Applied: B3.6 Date: 05/14/2013 Location(s): New Jersey Offices(s): National Energy Technology Laboratory May 14, 2013 CX-010281: Categorical Exclusion Determination Low Temperature Nitrous Oxide Storage and Reduction Using Engineered Materials CX(s) Applied: A9, B3.6 Date: 05/14/2013 Location(s): Kentucky Offices(s): National Energy Technology Laboratory May 13, 2013 CX-010397: Categorical Exclusion Determination Seismic Monitoring for Seismic Hazards Analyses CX(s) Applied: B3.1 Date: 05/13/2013 Location(s): Idaho Offices(s): Idaho Operations Office May 13, 2013 CX-010265: Categorical Exclusion Determination Validation Data for Light-Duty Fuel Cell Electric Vehicles

472

Validation of Innovative Exploration Technologies for Newberry Volcano: Map showing location of wells permitted, drilled and seismic test 2012  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Innovative Exploration Technologies for Newberry Volcano: Map showing location of wells permitted, drilled & seismic test, 2012

Jaffe, Todd

473

Development and Validation of an Advanced Stimulation Prediction Model for  

Open Energy Info (EERE)

Validation of an Advanced Stimulation Prediction Model for Validation of an Advanced Stimulation Prediction Model for Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Development and Validation of an Advanced Stimulation Prediction Model for Enhanced Geothermal Systems Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Stimulation Prediction Models Project Description The proposal is in response to DOE FOA DE-PS36-08GO99018/DE-FOA-0000075, specifically: the Topic Area: Stimulation Prediction Models - "To develop and validate models to predict a reservoir's response to stimulation and/or to quantitatively compare existing stimulation prediction models," and the Target Specification: "Development of stimulation prediction models capable of accurately predicting the location, spacing, orientation, and flow properties of created fractures."

474

Stuttering induced by thalamic deep brain stimulation for dystonia  

Science Journals Connector (OSTI)

We report a patient in whom deep brain stimulation of the ventral intermediate nucleus of the thalamus (Vim) for treating dystonia reversibly induced stuttering at suboptimal stimulation parameters. Adjustments o...

Niels Allert; Daniela Kelm; Christian Blahak…

2010-05-01T23:59:59.000Z

475

Two-pulse stimulated echo in magnets  

E-Print Network [OSTI]

The results of experimental study of two-pulse stimulated echo in ferromagnets of two types are presented. Ferromagnet Co and half-metal Co MnSi 2, in which a single-pulse echo formed by the distortion mechanism of the fronts of exciting pulse is also observed, are classified among the first type. Lithium ferrite and intermetal compound MnSb characterized by the absence of single-pulse echo in them - belong to the second type. For signals of two-pulse stimulated echo in the materials of the first type a short time and a long time of relaxations are observed. The short time is about the order of value shorter less than the spin-spin relaxation time. The long time is close to the transverse relaxation time of single-pulse echo formed by the distortion mechanism. The mechanisms that provide the possible interpretations of the peculiarities of the processes of nuclear magnetic relaxation are discussed.

Zviadadze, M D; Gegechkori, T O; Akhalkatsi, A M; Gavasheli, T A

2012-01-01T23:59:59.000Z

476

Calcification does not stimulate photosynthesis in the zooxanthellate ...  

Science Journals Connector (OSTI)

Rates of net photosynthesis, respiration, and calcification were measured on colonies ... and that photosynthesis stimulates calcification rather than the opposite.

2000-01-03T23:59:59.000Z

477

Stimulating Energy Efficiency in Kentucky: An Implementation Model for States  

Broader source: Energy.gov [DOE]

This presentation, given through the DOE's Technical Assitance Program (TAP), provides information on Stimulating Energy Efficiency in Kentucky.

478

On Seismic Imaging: Geodesics, Isochrons, and Fermat's Principle  

E-Print Network [OSTI]

. The particular application was suggested by Baker Atlas, PanCanadian Petroleum, Petro-Canada Oil and Gas, and Talisman Energy, i.e., the companies involved in seismic data acquisition, processing and interpretation the information about the subsurface, which includes spatial positions of re ectors. In the case of exploration

Bohun, C. Sean

479

Bridge Functionality Relationships for Improved Seismic Risk Assessment  

E-Print Network [OSTI]

Bridge Functionality Relationships for Improved Seismic Risk Assessment of Transportation Networks Jamie E. Padgett,a... M.EERI, and Reginald DesRoches,b... M.EERI Relationships between bridge damage and the resulting loss of functionality of the bridge are critical to assessing the impact of an earthquake event

Padgett, Jamie Ellen

480

Lattice preferred orientation and seismic anisotropy in sedimentary rocks  

Science Journals Connector (OSTI)

......properties of wet, drained shales, J. geophys. Res...Hudson J.A.,1994. Anisotropic effective medium modeling...elastic properties of shales, Geophysics, 59...Johansen T.A.,2000. Anisotropic approximations for mudrocks...Seismic anisotropy of shales, J. geophys. Res......

S. L. A. Valcke; M. Casey; G. E. Lloyd; J.-M. Kendall; Q. J. Fisher

2006-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination seismic stimulation" 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.


481

SEISMIC AND ROCK PHYSICS DIAGNOSTICS OF MULTISCALE RESERVOIR TEXTURES  

SciTech Connect (OSTI)

As part of our study on ''Relationships between seismic properties and rock microstructure'', we have studied (1) Methods for detection of stress-induced velocity anisotropy in sands. (2) 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

2003-06-30T23:59:59.000Z

482

Seismic Amplitude Versus Offset (AVO) Character of Geopressured Transition Zones  

E-Print Network [OSTI]

overpressured for ations in advance of drilling. In the oil and gas industry, work on the seismic signature. Local conductivity logs and regional drilling mud weight compilations estab ish the presence propagation in seals an eflection data from abnormally-pressured oil and gas fields. Our objective

483

AFTERSHOCKS AND FREEARTHQUAKE SEISMICITY By CARL E. JOHNSON,  

E-Print Network [OSTI]

Imperial Valley was noted during the aftershock se- quence, in an area recognized as notably aseismic seismicity affecting the central Imperial Valley. Although three small events near the incipient epicenter were observed. INTRODUCTION The Imperial Valley earthquake of October 15, 1979, was the largest

Tai, Yu-Chong

484

Identifying fracture zones in the Austin Chalk using seismic attributes  

E-Print Network [OSTI]

An attribute analysis was conducted in an attempt to reduce the risks involved in developing the Austin Chalk. The objective is to identify a set of attributes that directly indicate regions of intense fracturing using short offset 3-D seismic data...

Bafia, Daniel Joseph

2012-06-07T23:59:59.000Z

485

SEISMIC AND ROCK PHYSICS DIAGNOSTICS OF MULTISCALE RESERVOIR TEXTURES  

SciTech Connect (OSTI)

As part of our study on ''Relationships between seismic properties and rock microstructure'', we have studied (1) Effects of pore texture on porosity, permeability, and sonic velocity. We show how a relation can be found between porosity, permeability, and velocity by separating the formations of rocks with similar pore textures.

Gary Mavko

2003-06-30T23:59:59.000Z

486

Calculations on seismic coupling of underground explosions in salt  

SciTech Connect (OSTI)

This report details the results of a theoretical study of seismic coupling and decoupling of underground explosions in a salt medium. A series of chemical and nuclear explosions was carried out years ago in salt domes for the Cowboy and the Dribble programs to provide experimental data on seismic coupling for both tamped explosions and explosions in cavities. The Cowboy program consisted of a series of chemical explosions, and the Dribble program consisted of the tamped nuclear Salmon event, the Sterling nuclear event in the Salmon cavity, and an associated site calibration effort. This report presents the results of extensive computer calculations, which are in satisfactory agreement with the experimental data. The calculations were extended to give general results on seismic coupling in salt. The measure of seismic coupling for most of this work was the residual reduced displacement potential (residual RDP). The decoupling associated with a shot in a cavity was expressed as the ratio of the resulting residual RDP to that of an equal-sized tamped shot.

Heusinkveld, M.E.

1981-01-20T23:59:59.000Z

487

Review Article Generalised receiver functions and seismic interferometry  

E-Print Network [OSTI]

into virtual sensors (seismometers) that record seis- mograms from other real earthquakes, man-made sources sources and sensors at desired times and locations (rather than having to wait for earthquake sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4. Background to the theory of seismic interferometry

488

Constraints on mantle convection from seismic tomography and flow modeling  

E-Print Network [OSTI]

In this thesis I combine high resolution seismic tomography and realistic flow modeling to constrain mantle convection. The bulk of the data used in the tomographic imaging are millions of P, pP and pwP travel time residuals, ...

Kárason, Hrafnkell, 1970-

2002-01-01T23:59:59.000Z

489

SEISMIC ENGINEERING RESEARCH INFRASTRUCTURES FOR EUROPEAN SYNERGIES Qualification  

E-Print Network [OSTI]

For certification of Quality Management Systems: EN ISO 9001:2008 ­ Quality management systems - Requirements the ability to fulfill specified requirements (ISO 9000) #12;SEISMIC ENGINEERING RESEARCH INFRASTRUCTURES FOR EUROPEAN SYNERGIES Conformity Assessment Bodies ISO/IEC 17011 - Conformity assessment -- General

490

Seismic wave attenuation in carbonates L. Adam,1,2  

E-Print Network [OSTI]

and permeability between 0.03 and 58.1 mdarcy. Contrary to most observations in sandstones, bulk compressibility waves is common practice in reservoir rock physics. Variations in reservoir seismic properties can more than half of the current major oil and gas reservoirs in the world are in carbonates, these rocks

Boise State University

491

Rayleigh's Principle in Finite Element Calculations of Seismic Wave Response  

Science Journals Connector (OSTI)

......resulting error in frequency is of second order...conserve computer storage for large models...of Seismic Wave Response Warwick D. Smith...resulting error in frequency is of second order...conserve computer storage for large models...potential and kinetic energies of the system in......

Warwick D. Smith; Bruce A. Bolt

1976-06-01T23:59:59.000Z

492

Brady 1D seismic velocity model ambient noise prelim  

SciTech Connect (OSTI)

Preliminary 1D seismic velocity model derived from ambient noise correlation. 28 Green's functions filtered between 4-10 Hz for Vp, Vs, and Qs were calculated. 1D model estimated for each path. The final model is a median of the individual models. Resolution is best for the top 1 km. Poorly constrained with increasing depth.

Robert J. Mellors

2013-10-25T23:59:59.000Z

493

SEISMIC WAVES ESTIMATION AND WAVE FIELD DECOMPOSITION WITH FACTOR GRAPHS  

E-Print Network [OSTI]

SEISMIC WAVES ESTIMATION AND WAVE FIELD DECOMPOSITION WITH FACTOR GRAPHS Stefano Maranò Christoph, Dept. Information Technology & Electr. Eng., 8092 Zürich ABSTRACT Physical wave fields are often from sensors of different kinds. In this paper we propose a technique for the analysis of vector wave

Loeliger, Hans-Andrea

494

The use of seismic anisotropy for characterizing subsurface fracture ori-  

E-Print Network [OSTI]

The use of seismic anisotropy for characterizing subsurface fracture ori- entations and intensity anisotropy as a routine technique for fracture characterization is partly because of its inability to pro- vide information about sizes and vol- ume of fractures. Although both grain-scale micro

Edinburgh, University of

495

Attenuation character of seismic waves in Sikkim Himalaya  

Science Journals Connector (OSTI)

......seismic waves in Sikkim Himalaya Pinki Hazarika 1 M. Ravi Kumar 1 Dinesh Kumar 2 1 National Geophysical Research Institute (CSIR...L24307. doi:10.1029/2009GL041081. Chopra S. , Kumar D., Rastogi B.K. Attenuation of high frequency......

Pinki Hazarika; M. Ravi Kumar; Dinesh Kumar

496

Constraining the kinetics of mantle phase changes with seismic data  

Science Journals Connector (OSTI)

......excluded. This does not imply that accounting...10 km thick layer does not imply that seismic...transformation loop does not affect S waves...thermochemical calculation, and geophysical...National University Electronic Press, Canberra...Earth Physics, A Handbook of Physical Constants......

S. Durand; F. Chambat; J. Matas; Y. Ricard

2012-06-01T23:59:59.000Z

497

Seismic equipment qualification at Rocky Flats Plant: Lessons learned  

SciTech Connect (OSTI)

Seismic equipment qualification is being evaluated as a part of the Systematic Evaluation Program (SEP) at Rocky Flats Plant (RFP). Initially it was believed that the experience database developed by the Seismic Qualification Utility Group (SQUG) for commercial nuclear power plants, as outlined in their Generic Implementation Procedure (GIP), would provide a substantial benefit for the seismic adequacy verification of equipment at RFP. However, further review of the simplified guidelines contained in the GIP with respect to the specific RFP structures and components revealed substantial differences from the GIP criteria. Therefore, the number of ``outliers`` from the experience database defined in the GIP is greater than was initially anticipated. This paper presents details of the differences found between the RFP structures and components and those represented in the GIP, and the challenges presented for their evaluation at RFP. Approaches necessary to develop seismic verification data are also discussed. The discussions focus on experience with one of the nuclear facilities at RFP, Building 707. However, the conclusions are generally applicable to other similar facilities that typically comprise the RFP nuclear facilities.

Peregoy, W.; Herring, K.

1993-08-01T23:59:59.000Z

498

Understanding the reservoir important to successful stimulation  

SciTech Connect (OSTI)

In anisotropic Bakken shale reservoirs, fracture treatments serve to extend the well bore radius past a disturbed zone and vertically connect discrete intervals. Natural fractures in the near-well bore area strongly control the well deliverability rate. The Bakken is one of the few shale formations in the world with commercial oil production. This article covers the Bakken reservoir properties that influence production and stimulation treatments. The concluding part will discuss the design and effectiveness of the treatments.

Cramer, D.D. (BJ Services Co., Denver, CO (US))

1991-04-22T23:59:59.000Z

499

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"

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High resolution reverse VSP and interwell seismic experiments at the Buckhorn test site in Illinois  

SciTech Connect (OSTI)

Reverse Vertical Seismic Profiling VSP and interwell seismic experiments were conducted at the Western Kentucky Petroleum Buckhorn test site near Quincy, Illinois. The RVSP data were acquired using a 3-component pneumatic probe and the interwell seismic data were acquired using a 24-element hydrophone array. The experiments were conducted to analyze high resolution seismic waveforms and to perform travel time velocity inversion for mapping the Silurian Kankakee formation which is the more prolific oil producer in the Mt. Sterling area. Reverse VSP and interwell seismic measurements together with log data have yielded information on the anisotropic characteristic of the shale formation and in the compressional wave velocity distribution of the limestone formation. These results inferred that reverse VSP (using several 3-component detectors in shallow boreholes) and interwell seismic measurements integrated with log data and seismic modeling can delineate the hydrocarbon reservoir and geological structures at the Buckhorn test site.

Parra, J.O.; Bangs, J.H.

1992-07-01T23:59:59.000Z