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1

ABO Wind AG | Open Energy Information  

Open Energy Info (EERE)

AG Place: Hessen, Germany Zip: 65193 Sector: Bioenergy, Wind energy Product: German developer of wind and bioenergy generation assets. ABO Wind has no direct holding in any wind...

2

ABO Wind Espana SA | Open Energy Information  

Open Energy Info (EERE)

Espana SA Espana SA Jump to: navigation, search Name ABO Wind Espana SA Place Valencia, Spain Zip 46002 Sector Wind energy Product Spanish branch of project developer ABO Wind AG. Coordinates 39.468791°, -0.376913° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","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":"","locations":[{"text":"","title":"","link":null,"lat":39.468791,"lon":-0.376913,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

3

Reference Shelf  

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

Reference Shelf Reference Shelf Reference Shelf Find reference sources Questions? 505-667-5809 Email Biography Biographies of Women in Science Biography.com Marquis Who's Who NobelPrize.org Nobel Prize Internet Archive Calculators Currency Converter OnlineConversion.com Wolfram|Alpha Computational Knowledge Engine Dictionaries Oxford English Dictionary Merriam-Webster Dictionary DOD Dictionary of Military Terms Encyclopedias Britannica Online Columbia Encyclopedia Wikipedia Grants & Funding DOE Office of Science Grants & Contracts National Science Foundation National Institutes of Health Grants.Gov FedBizOpps.gov Los Alamos Info Los Alamos County Los Alamos Historical Society University of New Mexico - Los Alamos Campus Maps Atlapedia Online Perry-Casteneda Library Map Collection U.S. Gazetteer

4

E-Print Network 3.0 - abo lewis secretor Sample Search Results  

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

Sample search results for: abo lewis secretor Page: << < 1 2 3 4 5 > >> 1 Noroviral P particle: Structure, function and applications in virushost interaction Ming Tan a,b,1...

5

April 23, 2004 NW Energy Coalition's  

E-Print Network (OSTI)

. In that paper, the Council says, These problems are not the fault of the Bonneville Power Administration. Rather1 April 23, 2004 NW Energy Coalition's Comments on the NW Power and Conservation Council's Recommendations for the Future Role of BPA in Power Supply Document 2004-02 INTRODUCTION The NW Energy Coalition

6

Cost Effectiveness NW Energy Coalition  

E-Print Network (OSTI)

1 Action 8 Cost Effectiveness Manual Kim Drury NW Energy Coalition Context · Inconsistent understanding of cost effectiveness contributed to under performing conservation E.g: individual measures vs at end of 2009 #12;2 The thinking was . . . That a Cost Effectiveness Guide could: · Increase regionally

7

ABO, D Blood Typing and Subtyping Using Plug-Based Microfluidics  

E-Print Network (OSTI)

ABO, D Blood Typing and Subtyping Using Plug-Based Microfluidics Timothy R. Kline, Matthew K-based microfluidic approach was used to perform multiple agglutination assays in parallel without cross-chip, a microfluidic device was designed to combine aqueous streams of antibody, buffer, and red blood cells (RBCs

Ismagilov, Rustem F.

8

ABO Wind Biogas Sachsen Anhalt GmbH Co KG | Open Energy Information  

Open Energy Info (EERE)

ABO Wind Biogas Sachsen Anhalt GmbH Co KG ABO Wind Biogas Sachsen Anhalt GmbH Co KG Jump to: navigation, search Name ABO Wind Biogas Sachsen-Anhalt GmbH & Co. KG Place Wiesbaden, Saxony-Anhalt, Germany Zip 65193 Product Company set up to build and operate three biogas plants in Saxony-Anhalt Germany. Coordinates 50.084592°, 8.242302° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","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":"","locations":[{"text":"","title":"","link":null,"lat":50.084592,"lon":8.242302,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

9

NETL: Gasification Systems Reference Shelf  

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

Shelf Shelf Gasification Systems Reference Shelf TABLE OF CONTENTS Brochures Conferences and Workshops Gasification Systems Projects National Map Gasification Systems Projects and Performers Gasification Systems Project Portfolio Gasifipedia Multi-phase Flow with Interphase eXchange (MFIX) Patents Program Presentations Project Information Projects Summary Table by State Solicitations Systems and Industry Analyses Studies Technical Presentations & Papers Technology Readiness Assessment (Comprehensive Report | Overview Report) Video, Images & Photos Gasification Plant Databases CD Icon Request Gasification Technologies Information on a CD. Gasification RSS Feed Subscribe to the Gasification RSS Feed to follow website updates. LinkedIn DOE Gasification Program Group Subscribe to the LinkedIn DOE Gasification Program group for more information and discussion.

10

NETL: Carbon Storage - Reference Shelf  

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

Carbon Storage > Reference Shelf Carbon Storage > Reference Shelf Carbon Storage Reference Shelf Below are links to Carbon Storage Program documents and reference materials. Each of the 10 categories has a variety of documents posted for easy access to current information - just click on the category link to view all related materials. RSS Icon Subscribe to the Carbon Storage RSS Feed. Carbon Storage Collage 2012 Carbon Utilization and Storage Atlas IV Carbon Sequestration Project Portfolio DOE/NETL Carbon Dioxide Capture and Storage RD&D Roadmap Public Outreach and Education for Carbon Storage Projects Carbon Storage Technology Program Plan Carbon Storage Newsletter Archive Impact of the Marcellus Shale Gas Play on Current and Future CCS Activities Site Screening, Selection, and Initial Characterization for Storage of CO2 in Deep Geologic Formations Carbon Storage Systems and Well Management Activities Monitoring, Verification, and Accounting of CO2 Stored in Deep Geologic Formations

11

Appointed BrOadcast (ABO): Reducing Routing Overhead in IEEE 802.11 Mobile Ad Hoc Networks  

E-Print Network (OSTI)

1 Appointed BrOadcast (ABO): Reducing Routing Overhead in IEEE 802.11 Mobile Ad Hoc Networks Chun-enhanced and standard IEEE 802.11 nodes can coexist in a MANET is also discussed. Keywords: mobile ad hoc network, promiscuous mode, broadcast, IEEE 802.11, routing. #12;2 1. Introduction In mobile ad hoc networks (MANETs

Chen, Sheng-Wei

12

Geographic Information System At Nw Basin & Range Region (Nash...  

Open Energy Info (EERE)

Geographic Information System At Nw Basin & Range Region (Nash & Johnson, 2003) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration...

13

NETL: Reference Shelf - Techline Archive  

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

NETL Oil & Natural Gas Technologies Reference Shelf NETL Oil & Natural Gas Technologies Reference Shelf Archive Reports 2012: December, 2012 Final Project Report DE-NT0006554 GIS- and Web-based Water Resource Geospatial Infrastructure for Oil Shale Development [PDF-14.6MB] November, 2012 Final Project Report 08121-2902-02 Technologies of the Future for Pipeline Monitoring and Inspection [PDF-2.47MB] November, 2012 Final Project Report 07122-22 Petrophysical Studies of Unconventional Gas Reservoirs Using High-resolution Rock Imaging [PDF-27.7MB] November, 2012 Final Project Report 08122-35 The Environmentally Friendly Drilling Systems Program [PDF-4.33] October, 2012 Final Project Report DE-FE0003537 Next Generation Surfactants for Improved Chemical Flooding Technology [PDF-1.91MB] October, 2012 Final Project Report 08123-02 Field Demonstration of Alkaline Surfactant Polymer Floods in Mature Oil Reservoirs Brookshire Dome, Texas [PDF-5.06MB]

14

Potential Climate Change Impacts to the NW Hydroelectric System  

E-Print Network (OSTI)

Page 1 Potential Climate Change Impacts to the NW Hydroelectric System NW Power and Conservation Council Symposium on Greenhouse Gases June 4, 2013 1 Source of Data · 2009 International Panel on Climate Change (IPCC-4) data but prior to River Management Joint Operating Committee's (RMJOC) processing

15

The Effects of Rotation and Ice Shelf Topography on Frazil-Laden Ice Shelf Water Plumes  

E-Print Network (OSTI)

, Antarctica. In addition, it is found that the model only produces reasonable marine ice formation rates whenThe Effects of Rotation and Ice Shelf Topography on Frazil-Laden Ice Shelf Water Plumes PAUL R of the dynamics and thermodynamics of a plume of meltwater at the base of an ice shelf is presented. Such ice

Feltham, Daniel

16

National Academy Press, 2101 Constitution Avenue, NW, Washington...  

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

Avenue, NW, Washington, DC 20418. For access to this document, please visit http:www.nap.educatalog.php?recordid1097. - Link information courtesy of DOE R&D Accomplishments...

17

NETL: Methane Hydrates - Methane Hydrate Reference Shelf  

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

Reference Shelf Reference Shelf The Methane Hydrate Reference Shelf was created to provide a repository for information collected from projects funded as part of the National Methane Hydrate R&D Program. As output from the projects is received, it will be reviewed and then placed onto the reference shelf to be available to other methane hydrate researchers. Projects: DOE/NETL Projects : These pages contain detailed information on methane hydrate projects funded through the National Energy Technology Laboratory. Publications: Newsletter | Bibliography | Software | Reports | Program Publications | Photo Gallery Newsletter: Fire in the Ice: A publication highlighting the National Methane Hydrate R&D Program Bibliography: "Project Reports Bibliography"[PDF]: The bibliography lists publications resulting from DOE/NETL-sponsored

18

Multivariate accelerated shelf-life testing: a novel approach for determining the shelf-life of foods  

E-Print Network (OSTI)

Multivariate accelerated shelf-life testing: a novel approach for determining the shelf-lives, accelerated studies have to be conducted and a third parameter has to be estimated: the acceleration factor approach for determining the shelf-life of industrialised food products, the Multivariate Accelerated Shelf

Ferreira, Márcia M. C.

19

NW-MILO Acoustic Data Collection  

SciTech Connect

There is an enduring requirement to improve our ability to detect potential threats and discriminate these from the legitimate commercial and recreational activity ongoing in the nearshore/littoral portion of the maritime domain. The Northwest Maritime Information and Littoral Operations (NW-MILO) Program at PNNLs Coastal Security Institute in Sequim, Washington is establishing a methodology to detect and classify these threats - in part through developing a better understanding of acoustic signatures in a near-shore environment. The purpose of the acoustic data collection described here is to investigate the acoustic signatures of small vessels. The data is being recorded continuously, 24 hours a day, along with radar track data and imagery. The recording began in August 2008, and to date the data contains tens of thousands of signals from small vessels recorded in a variety of environmental conditions. The quantity and variety of this data collection, with the supporting imagery and radar track data, makes it particularly useful for the development of robust acoustic signature models and advanced algorithms for signal classification and information extraction. The underwater acoustic sensing system is part of a multi-modal sensing system that is operating near the mouth of Sequim Bay. Sequim Bay opens onto the Straight of Juan de Fuca, which contains part of the border between the U.S. and Canada. Table 1 lists the specific components used for the NW-MILO system. The acoustic sensor is a hydrophone permanently deployed at a mean depth of about 3 meters. In addition to a hydrophone, the other sensors in the system are a marine radar, an electro-optical (EO) camera and an infra-red (IR) camera. The radar is integrated with a vessel tracking system (VTS) that provides position, speed and heading information. The data from all the sensors is recorded and saved to a central server. The data has been validated in terms of its usability for characterizing the signatures of small vessels. The sampling rate of 8 kHz and low pass filtering to 2 kHz results in an alias-free signal in the frequency band that is appropriate for small vessels. Calibration was performed using a Lubell underwater speaker so that the raw data signal levels can be converted to sound pressure. Background noise is present due to a nearby pump and as a result of tidal currents. More study is needed to fully characterize the noise, but it does not pose an obstacle to using the acoustic data for the purposes of vessel detection and signature analysis. The detection range for a small vessel was estimated using the calibrated voltage response of the system and a cylindrical spreading model for transmission loss. The sound pressure of a typical vessel with an outboard motor was found to be around 140 dB mPa, and could theoretically be detected from 10 km away. In practical terms, a small vessel could reliably be detected from 3 - 5 km away. The data is archived in netCDF files, a standard scientific file format that is "self describing". This means that each data file contains the metadata - timestamps, units, origin, etc. - needed to make the data meaningful and portable. Other file formats, such as XML, are also supported. A visualization tool has been developed to view the acoustic data in the form of spectrograms, along with the coincident radar track data and camera images.

Matzner, Shari; Myers, Joshua R.; Maxwell, Adam R.; Jones, Mark E.

2010-02-17T23:59:59.000Z

20

Continental Shelf Research 26 (2006) 1524 Geochemical compositions of river and shelf sediments in the  

E-Print Network (OSTI)

Continental Shelf Research 26 (2006) 15­24 Geochemical compositions of river and shelf sediments in the Yellow Sea: Grain-size normalization and sediment provenance D.I. Lima,?, H.S. Jungb , J.Y. Choic , S 14 November 2005 Abstract The geochemistry of sediment samples from Korean and Chinese rivers

Yang, Shouye

Note: This page contains sample records for the topic "nw shelf abo" 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

E-Print Network 3.0 - alaskan continental shelf Sample Search...  

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

OF THE ALASKAN STREAM ON SHELF CURRENTS... . Climatology Northeastern Gulf Shelf and Ocean Currents Northwestern Gulf, Kodiak Outer Shelf and Alaskan... Comparison with the...

22

NW Natural (Gas) - Business Energy Efficiency Rebate Program | Department  

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

NW Natural (Gas) - Business Energy Efficiency Rebate Program NW Natural (Gas) - Business Energy Efficiency Rebate Program NW Natural (Gas) - Business Energy Efficiency Rebate Program < Back Eligibility Commercial Fed. Government Industrial Local Government Nonprofit State Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Appliances & Electronics Other Manufacturing Water Heating Maximum Rebate Custom: $1/annual therm saved Program Info Funding Source Energy Trust of Oregon State District of Columbia Program Type Utility Rebate Program Rebate Amount HVAC Unit Heater: $1.50/kBtu Furnace: $3/kBtu/hr Radiant Heating (Non-Modulating): $6.50/kBtu/hr Radiant Heating (Modulating): $10/kBtu/hr Tank Water Heater: 2.50/kBtu/hr Tankless/Instantaneous Water Heater: $2.00/kBtu/hr

23

Microsoft Word - NW Natural LURR CX.doc  

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

Clearence Memorandum Clearence Memorandum Charlene Belt - TERR-3 Proposed Action: NW Natural Devine RD LURR Budget Information: Work Order 00004866 Task 01 Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021: B4.9 "Grant or denial of requests for multiple use of a transmission facility rights-of-way..." Location: Clark County, Washington - Township 2 North, Range 2 East, Section 45 of the Orchards Quadrangle Proposed by: Bonneville Power Administration (BPA) Description of the Proposed Action: In response to the NW Natural Gas Company's Land Use Review Request (LURR) BPA proposes to grant the NW Natural Gas Company a 10' easement across BPA fee-owned parcels BV-150 and BV-152 for the installation of a 6" polyethylene pipeline along Devine

24

NETL: Innovations for Existing Plants - Reference Shelf  

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

Reference Shelf Reference Shelf Innovations for Existing Plants Reference Shelf Program Overview Overview Publications: IEP, Recent Accomplishments Report - [PDF-1.3MB] (Oct 2007) IEP Roadmap & Program Plan [PDF-1.2MB] (May 2006) DOE/NETL'S Innovations for Existing Plants R&D Program [PDF-42KB] (Feb 2005) Improving the Environmental Performance of Today's Coal-Fired Power Plants This paper provides an overview of the Innovations for Existing Plants (IEP) Program, managed by the DOE National Energy Technology Laboratory. IEP develops advanced low-cost environmental control technologies for the existing fleet of coal-fired power plants, specifically focusing on the development of advanced mercury, NOx, PM, and acid gas emission control technology. Research is also directed at the characterization and beneficial use of coal utilization byproducts as well as at emerging electric-utility and water issues.

25

Rapid generation of upwelling at a shelf break caused by buoyancy shutdown  

Science Journals Connector (OSTI)

Model analyses of an along-shelf flow over a continental shelf and slope reveal upwelling near the shelf break. A stratified, initially uniform along-shelf flow undergoes a rapid adjustment with notable differences onshore and offshore of the ...

Jessica Benthuysen; Leif N. Thomas; Steven J. Lentz

26

High-Frequency Internal Waves on the Oregon Continental Shelf  

Science Journals Connector (OSTI)

Measurements of vertical velocity by isopycnal-following, neutrally buoyant floats deployed on the Oregon shelf during the summers of 2000 and 2001 were used to characterize internal gravity waves on the shelf using measurements of vertical ...

Eric A. DAsaro; Ren-Chieh Lien; Frank Henyey

2007-07-01T23:59:59.000Z

27

renewable energy from waste 1730 RHODE ISLAND AVENUE, NW  

E-Print Network (OSTI)

renewable energy from waste 1730 RHODE ISLAND AVENUE, NW SUITE 700 WASHINGTON, DC 20036 WWW Energy and Security Act of 2009 that was released as a discussion draft on March 31. While waste-to-energy gas reductions and renewable energy provided by waste-to-energy and if it implemented policies

Columbia University

28

Rooftop Solar Potential Distributed Solar Power in NW  

E-Print Network (OSTI)

6/19/2013 1 Rooftop Solar Potential Distributed Solar Power in NW Massoud Jourabchi June 2013 1 in 2012 4 #12;6/19/2013 3 Regional Growth In Solar Energy Consumption Solar consumption both Thermal and PV h b t d i i lhas been on steady increase since early 1990s. From 2000-2010 Solar PV grow

29

upcfish.nw 29 September 2003 1 Fish and Sharks  

E-Print Network (OSTI)

upcfish.nw 29 September 2003 1 Fish and Sharks Hiromi Suenaga and Phil Merkey Introduction correlation with actual predator-prey problems in the real world. In our model we have the fish swimming to explore was the interaction between two different primary data structures. The collection of fish

30

File:EIA-Williston-NW-BOE.pdf | Open Energy Information  

Open Energy Info (EERE)

Williston-NW-BOE.pdf Williston-NW-BOE.pdf Jump to: navigation, search File File history File usage Williston Basin, Northwest Part By 2001 BOE Reserve Class Size of this preview: 776 × 600 pixels. Full resolution ‎(6,600 × 5,100 pixels, file size: 6.08 MB, MIME type: application/pdf) Description Williston Basin, Northwest Part By 2001 BOE Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Montana, North Dakota, South Dakota File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment

31

File:EIA-PSJ-NW-LIQ.pdf | Open Energy Information  

Open Energy Info (EERE)

PSJ-NW-LIQ.pdf PSJ-NW-LIQ.pdf Jump to: navigation, search File File history File usage Paradox-San Juan Basin, Northwest Part By 2001 Liquids Reserve Class Size of this preview: 776 × 600 pixels. Full resolution ‎(6,600 × 5,100 pixels, file size: 11.68 MB, MIME type: application/pdf) Description Paradox-San Juan Basin, Northwest Part By 2001 Liquids Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Utah, Colorado, New Mexico, Arizona File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment

32

File:EIA-PSJ-NW-BOE.pdf | Open Energy Information  

Open Energy Info (EERE)

NW-BOE.pdf NW-BOE.pdf Jump to: navigation, search File File history File usage Paradox-San Juan Basin, Northwest Part By 2001 BOE Reserve Class Size of this preview: 776 × 600 pixels. Full resolution ‎(6,600 × 5,100 pixels, file size: 11.69 MB, MIME type: application/pdf) Description Paradox-San Juan Basin, Northwest Part By 2001 BOE Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Utah, Colorado, New Mexico, Arizona File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment

33

Outer Continental Shelf Lands Act | Open Energy Information  

Open Energy Info (EERE)

Outer Continental Shelf Lands Act Outer Continental Shelf Lands Act Jump to: navigation, search Statute Name Outer Continental Shelf Lands Act Year 1953 Url [[File:|160px|link=]] Description References Outer Continental Shelf Lands Act pdf[1] This article is a stub. You can help OpenEI by expanding it. Enacted in 1953, the Outer Continental Lands Act provides for the jurisdiction of the United States over the submerged lands of the outer Continental Shelf, and authorizes the Secretary of the Interior to lease such lands for certain purposes. "It is hereby declared to be the policy of the United States that- (1) the subsoil and seabed of the outer Continental Shelf appertain to the United States and are subject to its jurisdiction, control, and power of disposition as provided in this Act..."

34

Sequence architecture of Lower Cretaceous carbonate shelf, Gulf Coast  

SciTech Connect

Cretaceous carbonate shelves in the Gulf Coast and the Chihuahua trough in Arizona record both eustatic and tectonic events. The Lower Cretaceous Comanche shelf in Texas and Louisiana consists of five major depositional/seismic sequences. The regionally extensive bounding surfaces of each sequence are either drowning unconformities or exposure unconformities. Drowning is inferred where shallow shelf facies are overlain by deeper water pelagic facies. Exposure is inferred where coastal terrigenous facies overlie marine shelf carbonates or paralic clastics. The interval of downlap and maximum flooding may be either a sharp contact that corresponds with the sequence boundary, or may be a gradational interval where deeper facies change to shoaling-upward facies. Medial Albian terrigenous clastics terminated the lower Albian carbonate shelf in the northern part of the Chihuahua trough. Farther south, the carbonate shelf persisted into the middle Albian. In Texas and Louisiana lower and middle Albian shelf margins prograded southward up to 15 km. Low-angle simple sigmoidal sequence geometry (type 1) suggests low-energy areas of the shelf. Steep, complex-oblique sequences (type 2) suggested high-energy areas. During the late Albian, the shelf margin was drowned in many places, and pelagic facies overlie the shelf facies. Rates of sediment accumulation within the low-energy prograding Fredericksburg sequence shelf margin are nearly two times those in the forereef basin and seven times greater than in the updip shoreward portion (8.98 cm/ky.; 4.85 cm/k.y.; 1.28 cm/k.y.). numerous hiatuses probably punctuate the interbedded sand and carbonate section in the updip, nearshore part of the shelf. Even rates in the pelagic shelf of the Washita sequence are greater than in the updip intrashelf Fast Texas embayment (1.69 cm/ky. compared to 1.28 cm/ky-).

Scott, R.W. (Amoco Production Co., Tulsa, OK (USA))

1990-05-01T23:59:59.000Z

35

Geodetic Survey At Nw Basin & Range Region (Blewitt Et Al, 2005...  

Open Energy Info (EERE)

Blewitt Et Al, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geodetic Survey At Nw Basin & Range Region (Blewitt Et Al, 2005) Exploration...

36

Engineering geology and future stability of the El Risco landslide, NW-Gran Canaria, Spain  

Science Journals Connector (OSTI)

A 200m long segment of the only main road in NW-Gran Canaria is built on landslide deposits near the...

Marc-Antoine Longpr; Rodrigo del Potro

2008-05-01T23:59:59.000Z

37

Microbial Community Diversity Associated with Carbon and Nitrogen Cycling in Permeable Shelf Sediments  

Science Journals Connector (OSTI)

...with surface-breaching gas hydrate mounds in the Gulf of Mexico...transport in permeable shelf sands. Cont. Shelf Res. 24...batch cultures, using gas-chromatography and N-15...Middle Atlantic Bight shelf sands. FEMS Microbiol. Ecol...

Evan M. Hunter; Heath J. Mills; Joel E. Kostka

2006-09-01T23:59:59.000Z

38

Mixing in seasonally stratified shelf seas: a shifting paradigm  

Science Journals Connector (OSTI)

...continental shelf seas to open-ocean CO2 storage is turbulent mixing of nutrients across...early August). At these locations the seawater density is largely determined by temperature...H.J.W Baar2004Enhanced open ocean storage of CO2 from shelf sea pumping. Science...

2005-01-01T23:59:59.000Z

39

E-Print Network 3.0 - argentinean continental shelf Sample Search...  

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

OF THE ALASKAN STREAM ON SHELF CURRENTS... . Climatology Northeastern Gulf Shelf and Ocean Currents Northwestern Gulf, Kodiak Outer ... Source: National Oceanic and...

40

E-Print Network 3.0 - adjacent continental shelf Sample Search...  

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

Sciences and Ecology 4 Shelf sedimentation on a tectonically active margin: A modern sediment budget for Poverty continental shelf, New Zealand Summary: of the sediment carried by...

Note: This page contains sample records for the topic "nw shelf abo" 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

Depositional environments of the Kodiak Shelf, Alaska  

E-Print Network (OSTI)

of these envfronments are created by the bathymetry of tfii s!iel f affec+ing the flow of the shelf waters. Sediment in the re!ighs is characterized by high asti and forami- rifera content, higi poros Ity and low bu', k densi ty. The fine-i;i a in natiif e i i' 'I... and clay. The f'ine-g; ain nature nf tive sed'me!&t of the surf'icfal deposits suogests that. they al e lovi ene!"gy ivii Gniilents, The negative ". opography shelters t'tie sediment in the d pressions from erosion. Iv ACKi'lOWLEDGMENTS The wr1ter...

Burbach, Stuart Peter

2012-06-07T23:59:59.000Z

42

Enhanced Device Performance of Germanium Nanowire Junctionless (GeNW-JL) MOSFETs by Germanide Contact Formation with Ar  

E-Print Network (OSTI)

Enhanced Device Performance of Germanium Nanowire Junctionless (GeNW-JL) MOSFETs by Germanide nanowire junctionless (GeNW-JL) metal-oxide-semiconductor-field-effect-transistors (MOSFETs) exhibited in the suboxide on the GeNW, whose germanium- enrichment surface was obtained to form a germanide contact at low

Jo, Moon-Ho

43

File:EIA-Williston-NW-Gas.pdf | Open Energy Information  

Open Energy Info (EERE)

File File Edit with form History Facebook icon Twitter icon » File:EIA-Williston-NW-Gas.pdf Jump to: navigation, search File File history File usage Williston Basin, Northwest Part By 2001 Gas Reserve Class Size of this preview: 776 × 600 pixels. Full resolution ‎(6,600 × 5,100 pixels, file size: 6.08 MB, MIME type: application/pdf) Description Williston Basin, Northwest Part By 2001 Gas Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Montana, North Dakota, South Dakota File history Click on a date/time to view the file as it appeared at that time.

44

File:EIA-PSJ-NW-GAS.pdf | Open Energy Information  

Open Energy Info (EERE)

File File Edit with form History Facebook icon Twitter icon » File:EIA-PSJ-NW-GAS.pdf Jump to: navigation, search File File history File usage Paradox-San Juan Basin, Northwest Part By 2001 Gas Reserve Class Size of this preview: 776 × 600 pixels. Full resolution ‎(6,600 × 5,100 pixels, file size: 11.69 MB, MIME type: application/pdf) Description Paradox-San Juan Basin, Northwest Part By 2001 Gas Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Utah, Colorado, New Mexico, Arizona File history Click on a date/time to view the file as it appeared at that time.

45

NW Natural (Gas) - Residential Energy Efficiency Rebate Program |  

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

Residential Energy Efficiency Rebate Program Residential Energy Efficiency Rebate Program NW Natural (Gas) - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Sealing Your Home Ventilation Manufacturing Appliances & Electronics Water Heating Windows, Doors, & Skylights Maximum Rebate Air Sealing: $275 Duct Sealing: $325 Duct Insulation: $100 Program Info State District of Columbia Program Type Utility Rebate Program Rebate Amount Air/Duct Leakage Test: $35 Air/Duct Sealing: 50% of cost Duct Insulation: 50% of cost Windows: $2.25 (U-Value 0.26 - 0.30) or $3.50/sq. ft. (U-Value 0.25 or less) Window Installation Bonus: $100 Attic/Ceiling Insulation: $0.25/sq. ft.

46

A LIMITED LIABILITY PARTNERSHIP 1050 Thomas Jefferson Street, NW  

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

A LIMITED LIABILITY PARTNERSHIP A LIMITED LIABILITY PARTNERSHIP 1050 Thomas Jefferson Street, NW Seventh Floor Washington, DC 20007 (202) 298-1800 Phone (202) 338-2416 Fax MEMORANDUM TO: DOE Office of General Counsel FROM: Doug Smith DATE: August 29, 2013 RE: Record of Communication Concerning Ceiling Fan and Ceiling Fan Light Kit Framework Document-Docket No. EERE-2012-BT-STD-0045 This memo provides an overview of communications made to DOE staff on the subject of possible changes to standards and test procedures for ceiling fans and ceiling fan light kits. The communications occurred at a meeting held at 10:30 a.m. on August 20, 2013, following the close of the comment period on the initial framework document for ceiling fans and light kits. The meeting attendees included:

47

Federal Outer Continental Shelf Oil and Gas Production Statistics - Pacific  

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

Pacific Pacific Energy Data Apps Maps Challenges Resources Blogs Let's Talk Energy Beta You are here Data.gov » Communities » Energy » Data Federal Outer Continental Shelf Oil and Gas Production Statistics - Pacific Dataset Summary Description Federal Outer Continental Shelf Oil and Gas Production Statistics for the Pacific by month and summarized annually. Tags {"Minerals Management Service",MMS,Production,"natural gas",gas,condensate,"crude oil",oil,"OCS production","Outer Continental Shelf",OSC,EIA,"Energy Information Agency",federal,DOE,"Department of Energy",DOI,"Department of the Interior","Pacific "} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness

48

NETL: Oil & Natural Gas Technologies Reference Shelf  

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

Reference Shelf Reference Shelf NETL Oil & Natural Gas Technologies Reference Shelf Solicitations Project Summaries Publications News Releases Software/Databases CDs/DVDs EOR Illustrations Welcome to the NETL Oil & Natural Gas Technologies Reference Shelf. Recently released and in-demand reference materials are available directly from this page using the links below. Online Database of Oil and Natural Gas Research Results Now Available The Knowledge Management Database (KMD) provides easy access to the results of nearly four decades of research supported by the Office of Fossil Energy’s Oil and Natural Gas Program. The database portal provides access to content from dozens of CDs and DVDs related to oil and natural gas research that FE's National Energy Technology Laboratory has published over the years. It

49

Guidelines for commercial off-the-shelf simulation package interoperability  

Science Journals Connector (OSTI)

Commercial-off-the-shelf (COTS) Simulation Packages (CSPs) are widely used visual interactive modeling environments such as Arena, Anylogic, Flexsim, Simul8, Witness, etc. CSP Interoperability (or distributed simulation) ...

Simon J. E. Taylor; Stephen J. Turner; Steffen Strassburger

2008-12-01T23:59:59.000Z

50

A Piecewise Linearization Framework for Retail Shelf Space  

E-Print Network (OSTI)

Georgia Institute of Technology. Atlanta, GA ... models and to provide a solution procedure that can handle realistic problem sizes and that is flexible enough to be applied to a wide range of shelf space management models. To achieve this,.

2004-07-09T23:59:59.000Z

51

Rapid Collapse of Northern Larsen Ice Shelf, Antarctica  

Science Journals Connector (OSTI)

...result of perturbed mass balance. (Auth.) Antarctic...shelves Larsen ice shelf mass balance Quaternary remote sensing...Development, domestic wastewater treatment is estimated to cover...Worldwide Desalt-ing Plants Inventory (International...

Helmut Rott; Pedro Skvarca; Thomas Nagler

1996-02-09T23:59:59.000Z

52

OLENDER REPORTING, INC. 1100 Connecticut Ave., NW, Suite 810, Washington, DC  

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

100 Connecticut Ave., NW, Suite 810, Washington, DC 100 Connecticut Ave., NW, Suite 810, Washington, DC 20036 Washington: (202) 898-1108 / Baltimore: (410) 752-3376 Toll Free: (888) 445-3376 1 Electricity Advisory Committee Meeting 8:33 a.m. through 2:49 p.m. October 29, 2010 OLENDER REPORTING, INC. 1100 Connecticut Ave., NW, Suite 810, Washington, DC 20036 Washington: (202) 898-1108 / Baltimore: (410) 752-3376 Toll Free: (888) 445-3376 2 National Rural Electric Cooperative Conference Center 4301 Wilson Boulevard Arlington, VA 22203 OLENDER REPORTING, INC. 1100 Connecticut Ave., NW, Suite 810, Washington, DC 20036 Washington: (202) 898-1108 / Baltimore: (410) 752-3376 Toll Free: (888) 445-3376 3 ELECTRICITY ADVISORY MEMBERS PRESENT: Richard Cowart

53

Abstract, Institute of Lake Superior Geology, 2011 Mtg. Neoarchean magmatism in the NW Superior Craton  

E-Print Network (OSTI)

Abstract, Institute of Lake Superior Geology, 2011 Mtg. Neoarchean magmatism in the NW Superior in an attempt to understand the magmatic history and processes involved in batholith formation. Mapping

54

NW Natural (Gas) - New Homes Stand Alone Incentive Program | Department of  

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

NW Natural (Gas) - New Homes Stand Alone Incentive Program NW Natural (Gas) - New Homes Stand Alone Incentive Program NW Natural (Gas) - New Homes Stand Alone Incentive Program < Back Eligibility Construction Residential Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Appliances & Electronics Water Heating Program Info Expiration Date 12/31/2012 State District of Columbia Program Type Utility Rebate Program Rebate Amount Energy Star Certified Gas Home: $600 Tankless Water Heater: $200 Provider Energy Trust of Oregon Builders with new construction projects in NW Natural's Washington gas service territory are eligible to receive cash incentives from Energy Trust of Oregon for gas heated homes that receive Energy Star certification.

55

Geographic Information System At Nw Basin & Range Region (Coolbaugh, Et  

Open Energy Info (EERE)

Nw Basin & Range Region (Coolbaugh, Et Nw Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Northwest Basin and Range 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_Nw_Basin_%26_Range_Region_(Coolbaugh,_Et_Al.,_2005_-_2)&oldid=401452

56

Seasonal Mean Circulation on the Irish Shelf { A Model-Generated Climatology  

E-Print Network (OSTI)

Seasonal Mean Circulation on the Irish Shelf { A Model-Generated Climatology Daniel R. Lynch and interpret the climatological mean circulation in these waters, with emphasis on the Irish Shelf

57

Ocean Currents and Sea Surface Heights Estimated across the West Florida Shelf  

Science Journals Connector (OSTI)

The across-shelf structures of the ocean circulation and the associated sea surface height (SSH) variability are examined on the west Florida shelf (WFS) for the 3-yr interval from September 1998 to December 2001. Five sets of characteristic ...

Yonggang Liu; Robert H. Weisberg

2007-06-01T23:59:59.000Z

58

Dynamics of ice shelf rift propagation and iceberg calving inferred from geodetic and seismic observations  

E-Print Network (OSTI)

ice at the base of the ice shelf could produce a thicknessthat may produce larger amounts of marine ice near one riftice shelf com- bined with large Antarctic storm systems can produce

Bassis, Jeremy N.

2007-01-01T23:59:59.000Z

59

E-Print Network 3.0 - amery ice shelf Sample Search Results  

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

enhance basal ice shelf melting around Antarctica Summary: to the absence of local ISM cooling. Only at the Amery ice shelf (AIS) is our ISM one order of magnitude higher... and...

60

Analysis of the Ross Ice Shelf Airstream Forcing Mechanisms Using Self-Organizing Maps  

Science Journals Connector (OSTI)

The Ross Ice Shelf airstream (RAS), a prominent transport mechanism of cold, continental air to the north, is the most common wind pattern over the Ross Ice Shelf, Antarctica. The forcing mechanisms of the RAS include katabatic drainage, mesoscale ...

Melissa A. Nigro; John J. Cassano

2014-12-01T23:59:59.000Z

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


61

Isotopic Analysis At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Isotopic Analysis At Nw Basin & Range Region (Laney, 2005) Isotopic Analysis At Nw Basin & Range Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Isotopic Analysis- Fluid Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of

62

Refraction Survey At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Nw Basin & Range Region (Laney, 2005) Nw Basin & Range Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction Survey At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Refraction Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Assembling Crustal Geophysical Data for Geothermal Exploration in the Great Basin, Louie and Coolbaugh. We have compiled velocity information from sources in the literature, results of previous seismic experiments and earthquake-monitoring projects, and data donated from mining, geothermal, and petroleum companies. We also collected (May 2002 and August 2004) two new crustal refraction profiles across western Nevada and the northern and

63

Field Mapping At Nw Basin & Range Region (Blewitt, Et Al., 2003) | Open  

Open Energy Info (EERE)

Nw Basin & Range Region (Blewitt, Et Nw Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be useful with more improvements 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=Field_Mapping_At_Nw_Basin_%26_Range_Region_(Blewitt,_Et_Al.,_2003)&oldid=510752" Categories: Exploration Activities DOE Funded Activities What links here Related changes Special pages

64

Modeling-Computer Simulations At Nw Basin & Range Region (Laney, 2005) |  

Open Energy Info (EERE)

Modeling-Computer Simulations At Nw Basin & Range Region (Laney, 2005) Modeling-Computer Simulations At Nw Basin & Range Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Modeling-Computer Simulations Activity Date Usefulness not indicated DOE-funding Unknown Notes Assembling Crustal Geophysical Data for Geothermal Exploration in the Great Basin, Louie and Coolbaugh. We have compiled velocity information from sources in the literature, results of previous seismic experiments and earthquake-monitoring projects, and data donated from mining, geothermal, and petroleum companies. We also collected (May 2002 and August 2004) two

65

Isotopic Analysis At Nw Basin & Range Region (Kennedy & Van Soest, 2007) |  

Open Energy Info (EERE)

Nw Basin & Range Region (Kennedy & Van Soest, 2007) Nw Basin & Range Region (Kennedy & Van Soest, 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Nw Basin & Range Region (Kennedy & Van Soest, 2007) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Isotopic Analysis- Fluid Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes The correspondence of helium isotope ratios and active transtensional deformation indicates a deformation-enhanced permeability and that mantle fluids can penetrate the ductile lithosphere, even in regions where there is no substantial magmatism. Superimposed on the regional trend are local, high 3He/4He anomalies indicating hidden magmatic activity and/or deep

66

Trace Element Analysis At Nw Basin & Range Region (Coolbaugh, Et Al., 2010)  

Open Energy Info (EERE)

Trace Element Analysis At Nw Basin & Range Region (Coolbaugh, Et Al., 2010) Trace Element Analysis At Nw Basin & Range Region (Coolbaugh, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Trace Element Analysis At Nw Basin & Range Region (Coolbaugh, Et Al., 2010) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Trace Element 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

67

Thermal Gradient Holes At Nw Basin & Range Region (Pritchett, 2004) | Open  

Open Energy Info (EERE)

Thermal Gradient Holes At Nw Basin & Range Region (Pritchett, 2004) Thermal Gradient Holes At Nw Basin & Range Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At Nw Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Thermal Gradient Holes Activity Date Usefulness not 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

68

Rapid Collapse of Northern Larsen Ice Shelf, Antarctica  

Science Journals Connector (OSTI)

...ice shelf, even these small forces due to wind may play a role, as may the effects of wind on ocean circulation. An increased probability...calving events during peri-ods of persistent offshore winds and air tempera-tures above 0 C has been...

Helmut Rott; Pedro Skvarca; Thomas Nagler

1996-02-09T23:59:59.000Z

69

Gas exploration beyond the shelf break; an oceanographic challenge  

E-Print Network (OSTI)

, University of Bergen, Norway 4 Christian Michelsen Research, Bergen, Norway 5 Norsk Hydro Research Center), intermediate scale (4 km grid resolution) and small scale (O(1 m) grid resolution). The currents at the shelf at small scale it is thus not only necessary to resolve small scale variations, such as bottom topography

Thiem, ?yvind

70

Modeling-Computer Simulations At Nw Basin & Range Region (Biasi, Et Al.,  

Open Energy Info (EERE)

Biasi, Et Al., Biasi, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Nw Basin & Range Region (Biasi, Et Al., 2009) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Modeling-Computer Simulations 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=Modeling-Computer_Simulations_At_Nw_Basin_%26_Range_Region_(Biasi,_Et_Al.,_2009)&oldid=401461" Categories: Exploration Activities DOE Funded

71

C measurements and macrofossil analyses of a varved sequence near Pudozh, eastern Karelia, NW Russia  

E-Print Network (OSTI)

, NW Russia BARBARA WOHLFARTH, OLE BENNIKE, LARS BRUNNBERG, IGOR DEMIDOV, GO¨ RAN POSSNERT AND SERGEI Russia. Boreas, Vol. 29, pp. 575­586. Oslo. ISSN 0300-9483. The laminated sediments at Pudozh in eastern Academy of Sciences, Pushkinskaya str. 11, RU-185610 Petrozavodsk, Russia Reconstruction of the timing

Wohlfarth, Barbara

72

An Approximate Method to Assess the Peaking Capability of the NW Hydroelectric System  

E-Print Network (OSTI)

DRAFT 1 An Approximate Method to Assess the Peaking Capability of the NW Hydroelectric System September 26, 2005 The best way to assess the hydroelectric system's peaking capability is to simulate its. This model simulates the operation of the major hydroelectric projects over a one-week (168 hour) period

73

Development of a Water Management Model for the Metropolitan Water District (NW Tucson)  

E-Print Network (OSTI)

, bathtubs, washing machines and dishwashers. Outdoor water usage includes: turf and drip irrigation, pools the water use the most and that people would actually change are deemed conservation parameters. WhileDevelopment of a Water Management Model for the Metropolitan Water District (NW Tucson) Amy Lynn

Fay, Noah

74

Mineralogical Characteristics of Specimens of a Meteorwrong Fall from NW Iran  

E-Print Network (OSTI)

In the early hours of October 22, 2011, people of a small town in NW Iran, called Khameneh (38{\\deg}11'47" N, 45{\\deg}38'14" E) noticed sounds of some colliding objects to home roofs and yard floors. Mineralogical investigations revealed the terrestrial and man-made origin of these stony samples.

Pourkhorsandi, Hamed

2014-01-01T23:59:59.000Z

75

Extension in NW Iran driven by the motion of the South Caspian Basin  

E-Print Network (OSTI)

Extension in NW Iran driven by the motion of the South Caspian Basin F. Masson a,, Y. Djamour b , S, Iran c International Institute of Earthquake Engineering and Seismology, Farmanieh, Dibaji, Arghavan St., N° 27, 19531 Tehran, Iran d Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts

Vernant, Philippe

76

Mineral paragenesis and textures associated with sandstone-hosted roll-front uranium deposits, NW China  

E-Print Network (OSTI)

, People's Republic of China c Northwest Institute of Uranium Geology, China National Nuclear CorporationMineral paragenesis and textures associated with sandstone-hosted roll-front uranium deposits, NW, Wuyiyi and Shihongtan sandstone-hosted roll-front uranium deposits, northwest China. The mineralization

Fayek, Mostafa

77

NETL: Oil & Natural Gas Technologies Reference Shelf  

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

NETL Oil & Natural Gas Technologies Reference Shelf NETL Oil & Natural Gas Technologies Reference Shelf E&P Focus Newsletter Banner The oil and gas exploration and production R&D newsletter, E&P Focus, highlights the latest developments in R&D being carried out by NETL. E&P Focus promotes the widespread dissemination of research results among all types of oil and gas industry stakeholders: producers, researchers, educators, regulators, and policymakers. Each issue provides up-to-date information regarding extramural projects managed under the Strategic Center for Natural Gas and Oil’s traditional oil and gas program, the EPAct Section 999 Program administered by the Research Partnership to Secure Energy for America (RPSEA), and in-house oil and gas research carried out by NETL’s Office of Research and Development.

78

Desmoceras (Pseudouhligella) intrapunctatum n. sp. (Ammonoidea) aus dem Unter-Albium von NW-Madagaskar mit Ritzstreifen  

Science Journals Connector (OSTI)

Aus den glaukonitischen Mergeln des Unter-Albiums von Ambatolafia im Mahajanga-Becken NW-Madagaskars wirdDesmoceras (Pseudouhligella) intrapunctatum als neue Ammoniten-Art (DesmoceratoideaZittel, 1895) eingefhrt...

Helmut Keupp

2008-12-01T23:59:59.000Z

79

Magnetotellurics At Nw Basin & Range Region (Pritchett, 2004) | Open Energy  

Open Energy Info (EERE)

Magnetotellurics At Nw Basin & Range Region Magnetotellurics At Nw Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Magnetotellurics 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

80

Geothermometry At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Nw Basin & Range Region (Laney, Geothermometry At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

Note: This page contains sample records for the topic "nw shelf abo" 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

Geothermal Literature Review At Nw Basin & Range Region (Laney, 2005) |  

Open Energy Info (EERE)

Geothermal Literature Review At Nw Basin & Range Geothermal Literature Review At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geothermal Literature Review Activity Date Usefulness not indicated DOE-funding Unknown Notes Assembling Crustal Geophysical Data for Geothermal Exploration in the Great Basin, Louie and Coolbaugh. We have compiled velocity information from sources in the literature, results of previous seismic experiments and earthquake-monitoring projects, and data donated from mining, geothermal, and petroleum companies. We also collected (May 2002 and August 2004) two new crustal refraction profiles across western Nevada and the northern and central Sierra. These sections had not been well characterized previously.

82

Geodetic Survey At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Geodetic Survey At Nw Basin & Range Region (Laney, Geodetic Survey At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geodetic Survey Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Targeting of Potential Geothermal Resources in the Great Basin from Regional to Basin-Scale Relationships Between Geodetic Strain and Geological Structures, Geoffrey Blewitt. The objectives of this project are to assess the use of inter-seismic crustal strain rates derived from GPS-stations as an exploration tool for non-magmatic high-temperature geothermal systems, and to use this technique to target potential geothermal resources in the Great Basin. Two potential target areas were identified in year one (FY03) by regional-scale studies: (1) the area

83

Compound and Elemental Analysis At Nw Basin & Range Region (Laney, 2005) |  

Open Energy Info (EERE)

Nw Basin & Range Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

84

Geodetic Survey At Nw Basin & Range Region (Blewitt, Et Al., 2003) | Open  

Open Energy Info (EERE)

Blewitt, Et Al., 2003) Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geodetic Survey At Nw Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geodetic Survey 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=Geodetic_Survey_At_Nw_Basin_%26_Range_Region_(Blewitt,_Et_Al.,_2003)&oldid=401448

85

Geographic Information System At Nw Basin & Range Region (Laney, 2005) |  

Open Energy Info (EERE)

Geographic Information System At Nw Basin & Range Geographic Information System At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range 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 geothermal data will be made available to industry and researchers on a web site. Relationships among the data will be explored using spatial

86

Self Potential At Nw Basin & Range Region (Pritchett, 2004) | Open Energy  

Open Energy Info (EERE)

Self Potential At Nw Basin & Range Region (Pritchett, Self Potential At Nw Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northwest Basin and Range 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" 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

87

Modeling-Computer Simulations At Nw Basin & Range Region (Blackwell, Et  

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 » Modeling-Computer Simulations At Nw Basin & Range Region (Blackwell, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Nw Basin & Range Region (Blackwell, Et Al., 2003) Exploration Activity Details Location Northwest Basin and Range 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

88

Direct-Current Resistivity Survey At Nw Basin & Range Region (Pritchett,  

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 » Direct-Current Resistivity Survey At Nw Basin & Range Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Nw Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northwest Basin and Range 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

89

Preliminary Feasibility Assessment of Integrating CCHP with NW Food Processing Plant #1: Modeling Documentation  

SciTech Connect

The Pacific Northwest National Laboratory (PNNL) has launched a project funded by the Bonneville Power Association (BPA) to identify strategies for increasing industrial energy efficiency and reducing energy costs of Northwest Food Processors Association (NWFPA) plants through deployment of novel combinations and designs of variable-output combined heat and power (CHP) distributed generation (DG), combined cooling, heating and electric power (CCHP) DG and energy storage systems. Detailed evaluations and recommendations of CHP and CCHP DG systems will be performed for several Northwest (NW) food processing sites. The objective is to reduce the overall energy use intensity of NW food processors by 25% by 2020 and by 50% by 2030, as well as reducing emissions and understanding potential congestion reduction impacts on the transmission system in the Pacific Northwest.

Hoffman, Michael G.; Srivastava, Viraj; Wagner, Anne W.; Makhmalbaf, Atefe; Thornton, John

2014-01-01T23:59:59.000Z

90

Water Sampling At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Water Sampling At Nw Basin & Range Region (Laney, Water Sampling At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Water Sampling Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

91

Field Mapping At Nw Basin & Range Region (Shevenell, Et Al., 2008) | Open  

Open Energy Info (EERE)

Field Mapping At Nw Basin & Range Region (Shevenell, Field Mapping At Nw Basin & Range Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes On a more local scale, Faulds et al. (2003, 2005a, 2005b, 2006) have conducted structural analysis and detailed geologic mapping at a number of sites throughout Nevada and have found that productive geothermal systems typically occur in one of several structural settings, including step-overs in normal fault zones, near the ends of major normal faults where the faults break into multiple splays, in belts of overlapping faults, at fault intersections, and in small pull aparts along strike-slip faults.

92

E-Print Network 3.0 - american continental shelf Sample Search...  

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

a Bay-shaped Shelf, submitted. Zhang, Y, J... . Part III: Interaction between the Offshore Current and the ... Source: Rodgers, Keith - Program in Atmospheric and Oceanic...

93

The staircase structure of the Southern Brazilian Continental Shelf  

E-Print Network (OSTI)

We show some evidences that the Southeastern Brazilian Continental Shelf (SBCS) has a devil's staircase structure, with a sequence of scarps and terraces with widths that obey fractal formation rules. Since the formation of these features are linked with the sea level variations, we say that the sea level changes in an organized pulsating way. Although the proposed approach was applied in a particular region of the Earth, it is suitable to be applied in an integrated way to other Shelves around the world, since the analyzes favor the revelation of the global sea level variations.

M. S. Baptista; L. A. Conti

2008-10-24T23:59:59.000Z

94

Shelf?break tidally induced environmental influences on acoustic propagation  

Science Journals Connector (OSTI)

Continuous wave propagation in the 100500 Hz band in littoral regions depends upon both time?dependent oceanography and bathymetry. The environmental influences interact nonlinearly in the acoustical time variation especially since the diurnal tidesurface height changes creates time?dependent total water depth. A submesoscale hydrodynamic model developed by Shen and Evans is used with tidal forcing and a simple shelf?break bathymetry to produce surface height variation and internal wave activity due to internal tide in a stratified ocean environment. A three?dimensional parabolic equation acoustic model is used to acoustically probe this environment at various bearings relative to the shelf break and the resulting internal tidal dynamics. In particular the acoustical results are examined for three?dimensional effects such as horizontal refraction. First the influence of bathymetry alone is shown and then compared to the full environment due to hydrodynamic action. The relative influences will then be compared by various measures such as modal decomposition acoustic energy summed over depth and signal gain degradation. [This research is sponsored by the ONR.

2004-01-01T23:59:59.000Z

95

OPTICAL CHARACTERISTICS OF DISSOLVED ORGANIC MATTER DURING A BLOOM ON THE WEST FLORIDA SHELF.  

E-Print Network (OSTI)

-member with oligotrophic seawater. INTRODUCTION Remote-sensing studies of the Gulf of Mexico using historical data from characteristics of CDOM on the West Florida Shelf. MATERIALS AND METHODS Water samples were collected on board the R/V Suncoaster at selected stations in the area of the West Florida Shelf during March, 1995 (Fig. 1

Gilbes, Fernando

96

Ice-shelf collapse from subsurface warming as a trigger for Heinrich events  

E-Print Network (OSTI)

in Antarctica, the resulting ice-shelf loss and attendant HSIS acceleration would produce a Heinrich eventIce-shelf collapse from subsurface warming as a trigger for Heinrich events Shaun A. Marcotta,1-discharge events from the Hudson Strait Ice Stream (HSIS) of the Laurentide Ice Sheet, referred to as Heinrich

Schmittner, Andreas

97

Ice shelf-ocean interactions in a general circulation model : melt-rate modulation due to mean flow and tidal currents.  

E-Print Network (OSTI)

??Interactions between the ocean circulation in sub-ice shelf cavities and the overlying ice shelf have received considerable attention in the context of observed changes in (more)

Dansereau, Veronique

2012-01-01T23:59:59.000Z

98

NETL Smart Grid Implementation Strategy (SGIS) - Reference Shelf  

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

Smart Grid Implementation Strategy (SGIS) Smart Grid Implementation Strategy (SGIS) Reference Shelf Smart Grid Introduction Articles-Examples of articles are publications in newsletters, journals, magazines, and conference proceedings. Results from DOE's ARRA Smart Grid Program Success Stories in DOE's ARRA Smart Grid Program Dodrill, Keith and Steven Bossart, Charging the Nation: West Virginia's Vast Power Portfolio, Summer 2011, West Virginia Executive Magazine, p. 27-29. Bossart, Steven. The Smart Grid: Transforming Electricity's Distribution. West Virginia Executive, Summer 2009 (p. 99-101). Bossart, Steven J and Keith, Dodrill, The ARRA Invests in West Virginia's Future, West Virginia Executive Magazine, Energy 2011 edition, p. 25 Bossart, Steve, and Ryan Egidi, Materials Research for Smart Grid

99

Oil and gas entrapment, Louisiana shelf, offshore Gulf Coast region  

SciTech Connect

Oil and gas accumulations in the Louisiana offshore are caused by vertical hydrocarbon migration. Source beds for both thermal gas and oil lie considerably deeper than reservoirs. The required vertical pathways are steeply dipping faults and salt structures (ridges and diapirs). Faults and salt structures indicate the continuing presence of rift structures that began along a normal passive continental margin during the Pennsylvanian. Tectonic trends are northeast, northwest, north, and west-east; they follow well-established regional stress systems. Listric and growth faults commonly are too shallow for vertical hydrocarbon migration and require connection with vertical faults. Vertical oil and gas migration is predictable in its directions. The underlying geological, geophysical, and geochemical processes are understood and are not different from such processes in other productive basins. Secondary salt layers at shallower levels cause interruptions of vertical oil and gas migration; at the same time these interruptions seem to indicate a large future exploration potential on the Louisiana shelf.

Pratsch, J.C.

1989-09-01T23:59:59.000Z

100

Compound and Elemental Analysis At Nw Basin & Range Region (Coolbaugh, Et  

Open Energy Info (EERE)

10) 10) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At NW Basin & Range Region (Coolbaugh, Et Al., 2010) Exploration Activity Details Location Northwest Basin and Range 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

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


101

Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al.,  

Open Energy Info (EERE)

2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes On the regional scale, we investigated the spatial relationship of known geothermal activity with: (1) the regional tendency of Quaternary fault orientations; (2) the direction of extensional strain; and (3) the magnitudoef fault-normal extensional strain. Item (1) is purely a structural analysis based on documented Quatemary faulting. Item (2) is purely an empirical strain-rate analysis, based on GPS station velocity

102

Texas-Louisiana- Mississippi Salt Basin Greater Green River Basin  

U.S. Energy Information Administration (EIA) Indexed Site

Texas-Louisiana- Texas-Louisiana- Mississippi Salt Basin Greater Green River Basin W. Gulf Coast Basin Appalachian Basin Wind River Basin Eastern Shelf NW Shelf Abo Sussex-Shannon Muddy J Mesaverde- Lance-Lewis Medina/Clinton-Tuscarora Bradford-Venango-Elk Berea-Murrysville Piceance Basin Bossier Williston Basin Ft Worth Basin Davis Bighorn Basin Judith River- Eagle Permian Basin Anadarko Basin Denver Basin San Juan Basin North-Central Montana Area Uinta Basin Austin Chalk Codell-Niobrara Penn-Perm Carbonate Niobrara Chalk Dakota Morrow Mesaverde Thirty- One Cleveland Ozona Canyon Wasatch- Mesaverde Red Fork Mesaverde Granite Wash Stuart City-Edwards Bowdoin- Greenhorn Travis Peak Olmos Cotton Valley Vicksburg Wilcox Lobo Pictured Cliffs Cretaceous Cretaceous-Lower Tertiary Mancos- Dakota Gilmer Lime Major Tight Gas Plays, Lower 48 States

103

Estimation of ice shelf melt rate in the presence of a thermohaline staircase  

Science Journals Connector (OSTI)

We observed diffusive-convection favorable thermohaline staircases directly beneath George VI Ice Shelf, Antarctica. A thermohaline staircase is one of the most pronounced manifestations of double-diffusive convection. Cooling and freshening of ...

Satoshi Kimura; Keith W. Nicholls; Emily Venables

104

The SISO CSPI PDG standard for commercial off-the-shelf simulation package interoperability reference models  

Science Journals Connector (OSTI)

For many years discrete-event simulation has been used to analyze production and logistics problems in manufacturing and defense. Commercial-off-the-shelf Simulation Packages (CSPs), visual interactive modelling environments such as Arena, Anylogic, ...

Simon J. E. Taylor; Navonil Mustafee; Steffen Strassburger; Stephen J. Turner; Malcolm Y. H. Low; John Ladbrook

2007-12-01T23:59:59.000Z

105

Remote sensing of submerged objects and geomorphology in continental shelf waters with acoustic waveguide scattering  

E-Print Network (OSTI)

The long range imaging of submerged objects, seafloor and sub-seafloor geomorphology in continental shelf waters using an active sonar system is explored experimentally and theoretically. A unified model for 3-D object ...

Ratilal, Purnima, 1971-

2002-01-01T23:59:59.000Z

106

E-Print Network 3.0 - adjacent shelf waters Sample Search Results  

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

the cavity beneath an ice... ); freezing occurs because warm waters in contact with the ice-shelf base undergo cooling and freshening... of the fluxes of heat and fresh water...

107

Sediment resuspension over a continental shelf during Hurricanes Edouard and Hortense  

E-Print Network (OSTI)

Sediment resuspension over a continental shelf during Hurricanes Edouard and Hortense G. C. Chang physical and optical measurements have captured sediment resuspension associated with two hurricanes. Sediment resuspension associated with Hurricane Edouard was forced by combined current and wave processes

Chang, Grace C.

108

Aspects of the physical control of phytoplankton dynamics over the Southern California Bight continental shelf  

E-Print Network (OSTI)

shelf . . . . . . . . . . . . . 2.6 Internal tide energyFigure 2.8: Internal tide energy and nitrate fluxes. Panelsthe peak internal tide energy. Figure 2.10: HFIW dissipation

Lucas, Andrew J.

2009-01-01T23:59:59.000Z

109

Horizontal internal-tide fluxes supportelevated phytoplankton productivity overthe inner continental shelf  

E-Print Network (OSTI)

The semidiurnal internal-tide energy flux was onshore over1 Cross-shelf internal-tide energy (J e ), heat (J q ),coherent with the internal-tide energy flux and heat flux (

Lucas, Andrew

2014-01-01T23:59:59.000Z

110

The effect of cross-shelf topography on a pelagic ecosystem response to upwelling favourable winds.  

E-Print Network (OSTI)

is positive offshore, v is positive towards the north and is positive upwards (normal to sigma surfaces scale grid with cross shelf profiles used for the 2D simulations. Biological parameter values

Baird, Mark

111

Evidence for the Hudson River as the dominant source of sand on the US Atlantic Shelf  

Science Journals Connector (OSTI)

... only rare honey-yellow axinite grains found on the outer shelf of the middle Atlantic bight could be traced to specific sources in New Jersey6. Ilmenite, however, is one ... ) (Table 2).

Dennis A. Darby

1990-08-30T23:59:59.000Z

112

Continental Shelf Research 25 (2005) 22612272 Foraminiferal shells in sediment traps: Implications of biogenic  

E-Print Network (OSTI)

the adjacent shelf or resuspension from the underlying sea floor. r 2005 Elsevier Ltd. All rights reserved by tidal motions and the resuspension of particles by waves in the coastal zone (Lafuente et al., 1999

Lin, Andrew Tien-Shun

113

Continental Shelf Research 22 (2002) 911922 Influence of the Portuguese Bend landslide on the character of  

E-Print Network (OSTI)

of material preserved on the shelf. Toward that end, we characterized offshore sediment by physical outfall of the Joint Water Pollution Control Plant (JWPCP). The JWPCP processes waste-water influent from

114

The transition zone between the oceanic and shelf regimes around Antarctica  

E-Print Network (OSTI)

To better understand and describe the Antarctic Slope Front at the Antarctic continental slope, the water masses near Antarctica are examined and their spatial distributions are described. Antarctic Surface Water over the Antarctic shelf regime...

Kim, Seong-Joong

2012-06-07T23:59:59.000Z

115

Some dynamics of carbon, nitrogen and phosphorus in the marine shelf environment of the Mississippi Fan  

E-Print Network (OSTI)

SOME DYNAMICS OF CARBON, NITROGEN AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1974 Major Subject: Chemical Oceanography SOME DYNAMICS OF CARBON NITROGEN, AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Approved as to style...

Armstrong, Daniel Wayne

1974-01-01T23:59:59.000Z

116

Comparing modern and Pleistocene ENSO-like influences in NW Argentina using nonlinear time series analysis methods  

E-Print Network (OSTI)

Comparing modern and Pleistocene ENSO-like influences in NW Argentina using nonlinear time series of 106 m3 occurred in the arid to semiarid intra-Andean basins of northwest- ern Argentina (Strecker Argentina are not well known for the period at around 30,000 14 C years ago. Marine and terrestrial records

Vuille, Mathias

117

Fluid-escape features as a precursor of a large sublacustrine sediment slide in Lake Le Bourget, NW Alps, France  

E-Print Network (OSTI)

Fluid-escape features as a precursor of a large sublacustrine sediment slide in Lake Le Bourget, NW Introduction Glacial lakes are prone to large-scale sediment slides and slumps owing to their high sediment slides are often associ- ated with catastrophic waves (seiche effect), especially when they occur

Gilli, Adrian

118

FOLEY & LARDNER LLP ATTORNEYS AT LAW WASHINGTON HARBOUR 3000 K STREET, N.W.  

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

FOLEY FOLEY FOLEY & LARDNER LLP ATTORNEYS AT LAW WASHINGTON HARBOUR 3000 K STREET, N.W. SUITE 600 WASHINGTON, D.C. 20007-5109 202.672.5300 TEL 202.672.5399 FAX foley.com WRITER'S DIRECT LINE 202.672.5442 jsnewman©foley.corn EMAIL December 13, 2010 VIA E-Mail (Celia.Sher@hq.doe.gov) Ms. Celia Sher U.S. Department of Energy Office of General Counsel Forrestal Building, GC-71 1000 Independence Avenue, S.W. Washington, D.C. 585-0121 Re: Requested Summary of Telephone Conference Regarding Certification and Compliance Requirements Dear Ms. Sher: On behalf of Johnson Controls, Inc. (JCI), I am providing at your request a summary of the concerns raised during our telephone call on Wednesday, December 8, 2010 concerning the certification and compliance requirements for commercial air conditioning and heat pump

119

Data Acquisition-Manipulation At Nw Basin & Range Region (Blackwell, Et  

Open Energy Info (EERE)

Blackwell, Et Blackwell, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Nw Basin & Range Region (Blackwell, Et Al., 2003) Exploration Activity Details Location Northwest Basin and Range 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. References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard

120

Street N.W., Washington, DC 20036 Letter Electrostatic Force Assisted Exfoliation of  

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

LAWRENCE BERKELEY NATL LAB LAWRENCE BERKELEY NATL LAB Nano Letters is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Letter Electrostatic Force Assisted Exfoliation of Prepatterned Few-Layer Graphenes into Device Sites Xiaogan Liang, Allan S. P. Chang, Yuegang Zhang, Bruce D. Harteneck, Hyuck Choo, Deirdre L. Olynick, and Stefano Cabrini Nano Lett., Article ASAP Downloaded from http://pubs.acs.org on December 15, 2008 More About This Article Additional resources and features associated with this article are available within the HTML version: * Supporting Information * Access to high resolution figures * Links to articles and content related to this article * Copyright permission to reproduce figures and/or text from this article Electrostatic

Note: This page contains sample records for the topic "nw shelf abo" 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

Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Article  

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

Chemical Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Article Proton Dynamics in N,N,N#,N#-Tetramethylguanidinium Bis(perfluoroethylsulfonyl)imide Protic Ionic Liquid Probed by Quasielastic Neutron Scattering Eugene Mamontov, Huimin Luo, and Sheng Dai J. Phys. Chem. B, 2009, 113 (1), 159-169 * DOI: 10.1021/jp808102k * Publication Date (Web): 11 December 2008 Downloaded from http://pubs.acs.org on January 2, 2009 More About This Article Additional resources and features associated with this article are available within the HTML version: * Supporting Information * Access to high resolution figures * Links to articles and content related to this article * Copyright permission to reproduce figures and/or text from this article Proton Dynamics in N,N,N',N'-Tetramethylguanidinium

122

A model for determining shelf life, estimating terminal body composition, yield grade and quality grade of feedlot cattle  

E-Print Network (OSTI)

as to style and content by: F. M. Byers (Chairman of Co m ttee) James McGrann (Member) ~&~& G. T. Schelling (Member) December 1986 ABSRACT A Model for Determining Shelf Life, Estimating Terminal Body Composition, Yield Grade and Quality Grade... of Feedlot Cattle. (December 1985) Richard Jay Perry, B, S. , Texas AlkM University Chairman of Advisory Committee: Dr. F, M. Byers A model for determining shelf life and estimating carcass fat (kg), yield grade and quality grade was developed. Shelf...

Perry, Richard Jay

1985-01-01T23:59:59.000Z

123

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Fine-Scale Control of Microbial Communities in Deep Marine Sediments Fine-Scale Control of Microbial Communities in Deep Marine Sediments Fine-Scale Control of Microbial Communities in Deep Marine Sediments that Contain Hydrates and High Concentrations of Methane Authors: Colwell, F. (speaker, Oregon State University), Hangsterfer, A., Brodie, E., Daly, R., Holland, M., Briggs, B., Carini, P., Torres, M., Kastner, M., Long, P., Schaef, H., Delwiche, M., Winters, W., and Riedel, M. Venue: American Geophysical Union’s fall meeting in San Francisco, CA, December 10–14, 2007 (http://www.agu.org/meetings/fm07/ [external site]). Abstract: Deep subseafloor sediments with high concentrations of organic carbon and microbially generated methane contain microbial communities that play an important role in the biogeochemical cycling of carbon. However, there remains a limited understanding of the fine (centimeter)-scale sediment properties (e.g., grain size, presence/absence of hydrates) that determine key microbial attributes in deep marine sediments. This project’s objective is to determine the quantity, diversity, and distribution of microbial communities in the context of abiotic properties in gas-rich marine sediments. DNA was extracted from deep marine sediments cored from various continental shelf locations, including offshore India and the Cascadia Margin. Abiotic characterization of the same sediments included grain size analysis, chloride concentrations in sediment pore waters, and presence of hydrates in the sediments as determined by thermal anomalies. As in past studies of such systems, most of the samples yielded low levels of DNA (0.3-1.5 ng/g of sediment). Bacterial DNA appeared to be more easily amplified than archaeal DNA. Initial attempts to amplify DNA using primers specific for the methanogen functional gene, methyl-CoM-reductase, were unsuccessful. Infrequently, cores from relatively shallow sediments (e.g., 0.5 mbsf Leg 204, 1251B-1H) from central (Hydrate Ridge) and northern (offshore Vancouver Island) Cascadia and from India’s eastern margin contained macroscopically visible, pigmented biofilms. One of these biofilms was composed of high concentrations of cell clusters when viewed microscopically. The predominant cells in the Hydrate Ridge biofilm were large (ca. 10 um) cocci, and preliminary characterization of the 16S rDNA amplified and sequenced from this biofilm suggests the prevalence of a microbe with 97% similarity to mycobacteria. These discrete biofilm communities appear to be distinctive relative to the normally sparse distribution of cells in the sediments. By determining how the abiotic properties of deep marine sediments control the numbers and distribution of microbial communities that process organic matter, project researchers hope to provide better parameters for computational models that describe carbon cycling in these systems.

124

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Geologic Framework of the 2005 Keathley Canyon Geologic Framework of the 2005 Keathley Canyon Gas Hydrate Research Well, Northern Gulf of Mexico Authors: D.R. Hutchinson, P.E. Hart, T.S. Collett, K.M. Edwards, and D.C. Twichell, U.S. Geological Survey, and F. Snyder, WesternGeco-Schlumberger. Venue: American Geophysical Union’s 2007 Joint Assembly, Acapulco, Mexico, May 22-25, 2007 (http://www.agu.org/meetings/ja07/ [external site]). Abstract: The project was located in the Casey Basin in the northern Gulf of Mexico at 1,335 m water depth. A grid of 2-D high-resolution multichannel seismic lines around the drill sites, targeted for imaging depths down to at least 1,000 m subbottom, reveals multiple disconformities that bound seven mappable seismic stratigraphic units. A major disconformity in the middle of the units stands out for its angular baselapping geometry. From the seismic and drilling data, three episodes of sedimentary deposition and deformation are inferred. The oldest episode consists of fine-grained muds deposited during a period of relative stability in the basin (Units E, F, and G). A second episode (Units C and D) consists of large vertical displacements associated with infilling and ponding of sediment. This second interval corresponds with intercalated fine and coarse-grained material in the drill hole, which sampled the thin edges of much thicker units. The final episode (Units A and B) occurred during much-subdued vertical displacement. Hemipelagic drape (Unit A) characterizes the modern seafloor deposits. The basin is mostly filled. Its sill is part of a subsiding graben that is only 10-20 m shallower than the deepest point in the basin, indicating that gravity-driven transport would mostly bypass the basin. Contemporary faulting along the basin margins has selectively reactivated an older group of faults. The intercalated sand and mud deposits of Units C and D are tentatively correlated with late Pleistocene deposition derived from the western shelf-edge delta/depocenter of the Mississippi River, which was probably most active from 320 ka to 70 ka (Winker and Booth, 2000). Gas hydrate occurs within near-vertical fractures in Units E and F of the oldest episode. The presence of sand within the gas hydrate stability zone is not sufficient to concentrate gas hydrate, even though dispersed gas hydrate occurs deeper in the fractured mud/clay-rich sections of Units E and F.

125

Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for  

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

Critical Question #4: What are the Best Off-the-Shelf HVAC Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes and Apartments? Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes and Apartments? What is currently in the market? What are the limitations of these systems? What are the desired specifications for these systems? What are the realistic space conditioning loads of these high-performance homes and apartments? cq4_forced_air_systems_walker.pdf cq4_simplified_space_cond_prahl.pdf cq4_ground_heat_exchanger_im.pdf More Documents & Publications Track C - Market-Driven Research Solutions Track B - Critical Guidance for Peak Performance Homes Energy Storage & Power Electronics 2008 Peer Review - Power Electronics

126

Federal Outer Continental Shelf Oil and Gas Production Statistics - Gulf of  

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

Gulf of Gulf of Mexico Energy Data Apps Maps Challenges Resources Blogs Let's Talk Energy Beta You are here Data.gov » Communities » Energy » Data Federal Outer Continental Shelf Oil and Gas Production Statistics - Gulf of Mexico Dataset Summary Description Federal Outer Continental Shelf Oil and Gas Production Statistics for the Gulf of Mexico by month and summarized annually. Tags {"Minerals Management Service",MMS,Production,"natural gas",gas,condensate,"crude oil",oil,"OCS production","Outer Continental Shelf",OSC,EIA,"Energy Information Agency",federal,DOE,"Department of Energy",DOI,"Department of the Interior","Gulf of Mexico"} Dataset Ratings Overall 0 No votes yet Data Utility

127

Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental Shelf  

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

the Interior the Interior Bureau of Ocean Energy Management Office of Renewable Energy Programs OCS EIS/EA BOEM 2013-01140 Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental Shelf Offshore Florida Revised Environmental Assessment OCS EIS/EA BOEM 2013-01140 Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental Shelf Offshore Florida Revised Environmental Assessment Author Bureau of Ocean Energy Management Office of Renewable Energy Programs Published by U.S. Department of the Interior Bureau of Ocean Energy Management Office of Renewable Energy Programs August 2013 iii FINDING OF NO SIGNIIFCANT IMPACT Lease Issuance for Marine Hydrokinetic Technology Testing on the Outer Continental

128

Microbial abundance and biomass in sediments of the Texas-Louisiana shelf  

E-Print Network (OSTI)

MICROBIAL ABUNDANCF. AND BIOMASS IN SEDIMENTS OF THF. TEXAS-LOUISIANA SHELF A Thesis by MARTA ELIZABETH CRUZ-KAEGI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfiument of the requirements for the degree... of MASTER OF SCIENCE December 1992 Major Subject: Oceanography MICROBIAL ABUNDANCE AND BIOMASS IN SEDIMENTS OF THE TEXAS-LOUISIANA SHELF A Thesis by MARTA ELIZABETH CRUZ-KAEGI Approved as to style and content by: I $7& Gilberl T. Rowe (Chair...

Cruz-Kaegi, Marta Elizabeth

1992-01-01T23:59:59.000Z

129

Ice shelf-ocean interactions in a general circulation model : melt-rate modulation due to mean flow and tidal currents  

E-Print Network (OSTI)

Interactions between the ocean circulation in sub-ice shelf cavities and the overlying ice shelf have received considerable attention in the context of observed changes in flow speeds of marine ice sheets around Antarctica. ...

Dansereau, Vronique

2012-01-01T23:59:59.000Z

130

Wind- and Buoyancy-modulated Along-shore Circulation over the Texas-Louisiana Shelf  

E-Print Network (OSTI)

Numerical experiments are used to study the wind- and buoyancy-modulated along-shore circulation over the Texas-Louisiana continental shelf inshore of 50-m water depth. Most attention is given to circulation in the non-summer flow regime. A major...

Zhang, Zhaoru

2013-07-22T23:59:59.000Z

131

Continental Shelf Research 21 (2001) 587606 Nutrient enrichment off Port Stephens  

E-Print Network (OSTI)

Continental Shelf Research 21 (2001) 587­606 Nutrient enrichment off Port Stephens: the role of the dinoflagellate Noctiluca scintillans occurred off Port Stephens, on the New South Wales (NSW) central coast water into the euphotic zone off Port Stephens. To this end, a regional model of the NSW coast

Oke, Peter

132

Internal tide generation at the continental shelf modelled using a modal decomposition  

E-Print Network (OSTI)

Internal tide generation at the continental shelf modelled using a modal decomposition: two are required. Using this formulation, we calculate the internal tide generated by a time-periodic barotropic-layer or uniformly stratified. For the two-layer case, we derive expressions for the shoreward and oceanward energy

133

Shelf life modelling for first-expired-first-out warehouse management  

Science Journals Connector (OSTI)

...base for an integrated approach in which front-end...shelf life modelling approaches taken from the post-harvest...a strategic response management system optimizing product...model-based optimization approaches in practice, its success...Agency for Innovation by Science and Technology (IWT...

2014-01-01T23:59:59.000Z

134

Unravelling the influence of water depth and wave energy on the facies diversity of shelf carbonates  

E-Print Network (OSTI)

Unravelling the influence of water depth and wave energy on the facies diversity of shelf their production is tied to light and wave energy, carbonate sediments are most effectively produced in shallow processes of storm and wave reworking influence the seabed through submarine erosion and sediment

Purkis, Sam

135

Current separation and upwelling over the southeast shelf of Vietnam in the South China Sea  

E-Print Network (OSTI)

] The high-resolution, unstructured grid Finite-Volume Community Ocean Model (FVCOM) was used to examine-shelf coastal current from the north and northeastward buoyancy-driven and stratified tidal-rectified currents, is capable of reproducing the location and tongue-like offshore distribution of temperature as those seen

Chen, Changsheng

136

The Role of Cetaceans in the Shelf-Edge Region of the Northeastern United States  

E-Print Network (OSTI)

The Role of Cetaceans in the Shelf-Edge Region of the Northeastern United States JAMES H. W. HAIN, MARTIN A. M. HYMAN, ROBERT D. KENNEY, and HOWARD E. WINN Introduction Man has been, and continues to be, RI 02881; the present address of J. H. W. Hain is Associated Scientists at Woods Hole, Box 721, Woods

137

Assessing the wind field over the continental shelf as a resource for electric power  

E-Print Network (OSTI)

for the comparison period) that the near-coast phase advantage is obviated. We also find more consistent wind powerAssessing the wind field over the continental shelf as a resource for electric power by Richard W. Garvine1,2 and Willett Kempton1,3,4 ABSTRACT To assess the wind power resources of a large continental

Firestone, Jeremy

138

Inversion Skill for Limited-Area Shelf Modeling { Part I: An OSSE Case Study  

E-Print Network (OSTI)

, and extrapolating the data is judged. A model-generated, shelf-scale climatology serves as Truth for the sampling achieves fast, monotonic convergence. The model successfully reconstructs Truth at the data points, within a large and well-recognized problem in nonlinear state estimation and forecasting, with many consequences

139

New study details glacier ice loss following ice shelf July 25, 2011  

E-Print Network (OSTI)

and Ted #12;Scambos of the NSIDC produced detailed ice loss maps from 2001 to 2009 for the main tributaryNew study details glacier ice loss following ice shelf collapse July 25, 2011 Contact: Anthony Lane UMBC (410) 455-5793 alane@umbc.edu Katherine Leitzell National Snow and Ice Data Center University

Cambridge, University of

140

Ice sheet limits in Norway and on the Norwegian continental shelf Jan Mangerud  

E-Print Network (OSTI)

Ice sheet limits in Norway and on the Norwegian continental shelf Jan Mangerud University of Bergen, Department of Geology, Allégt. 41, N-5007 Bergen, Norway Jan.Mangerud@geol.uib.no Introduction Ice sheets and other glaciers have had a spectacular erosional impact on the Norwegian landscape, producing deep fjords

Ingólfsson, ?lafur

Note: This page contains sample records for the topic "nw shelf abo" 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
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141

Cetacean high-use habitats of the northeast United States continental shelf  

SciTech Connect

Results of the Cetacean and Turtle Assessment Program previously demonstrated at a qualitative level that specific areas of the continental shelf waters off the northeastern US coast consistently showed high-density utilization by several cetacean species. They have quantified, on a multispecies basis and with adjustment for level of survey effort, the intensity of habitat use by whales and dolphins, and defined areas of especially high-intensity utilization. The results demonstrate that the area off the northeast US, which is used most intensively as cetacean habitat, is the western margin of the Gulf of Maine, from the Great South Channel to Stellwagen Bank and Jeffreys Ledge. Secondary high-use areas include the continental shelf edge and the region around the eastern end of Georges Bank. High-use areas for piseivorous cetaceans are concentrated mainly in the western Gulf of Maine and secondarily at mid-shelf east of the Chesapeake region, for planktivores in the western Gulf of Maine and the southwestern and eastern portions of Georges Bank, and for teuthivores in the western Gulf of Maine and the southwestern and eastern portions of Georges Bank, and for teuthivores along the edge of the shelf. In general, habitat use by cetaceans is highest in spring and summer, and lowest in fall and winter.

Kenney, R.D.; Winn, H.E.

1986-04-01T23:59:59.000Z

142

Atlantic update, July 1986--June 1990: Outer Continental Shelf oil and gas activities  

SciTech Connect

This report describes outer continental shelf oil and gas activities in the Atlantic Region. This edition of the Atlantic Update includes an overview of the Mid-Atlantic Planning Area and a summary of the Manteo Prospect off-shore North Carolina. 6 figs., 8 tabs.

Karpas, R.M.; Gould, G.J.

1990-10-01T23:59:59.000Z

143

Break-up of the Larsen B Ice Shelf Triggered by Chain-Reaction Drainage of Supraglacial Lakes  

E-Print Network (OSTI)

ice-shelf thinning) would continue to reduce the critical lake 200 depth necessary to produce ring-type fractures. In addition, increased basal melting leads 201 to substantial cooling of the ice shelf interior [Sergienko et al., 2013], making... Break-up of the Larsen B Ice Shelf Triggered by Chain-Reaction 1 Drainage of Supraglacial Lakes 2 Alison F. Banwell1,2, Douglas R. MacAyeal1 and Olga V. Sergienko3 3 1The Department of Geophysical Sciences, The University of Chicago, Chicago, IL...

Banwell, Alison F.; MacAyeal, Douglas R.; Sergienko, Olga V.

2014-12-12T23:59:59.000Z

144

Entrainment of trace-metal-enriched Atlantic-shelf water in the inflow to the Mediterranean Sea  

Science Journals Connector (OSTI)

... by modified Co-APDC (cobalt-ammonium pyrrolidinedithiocarbamate) co-precipitation5, and analysed by graphite furnace flameless atomic absorption. Cd is enriched in Atlantic surface waters on the Spanish shelf outside ...

Alexander van Geen; Paula Rosener; Edward Boyle

1988-02-04T23:59:59.000Z

145

The Cumulative Ecological Effects of Normal Offshore Petroleum Operations Contrasted With Those Resulting From Continental Shelf Oil Spills [and Discussion  

Science Journals Connector (OSTI)

...Ecological Effects of Normal Offshore Petroleum Operations Contrasted...Resulting From Continental Shelf Oil Spills [and Discussion...from normal (non-spill) offshore petroleum operations have...studies of spills of crude oil and its refined products...

1982-01-01T23:59:59.000Z

146

The shallow shelf approximation as a "sliding law" in a thermomechanically coupled ice sheet model  

E-Print Network (OSTI)

The shallow shelf approximation is a better ``sliding law'' for ice sheet modeling than those sliding laws in which basal velocity is a function of driving stress. The shallow shelf approximation as formulated by \\emph{Schoof} [2006a] is well-suited to this use. Our new thermomechanically coupled sliding scheme is based on a plasticity assumption about the strength of the saturated till underlying the ice sheet in which the till yield stress is given by a Mohr-Coulomb formula using a modeled pore water pressure. Using this scheme, our prognostic whole ice sheet model has convincing ice streams. Driving stress is balanced in part by membrane stresses, the model is computable at high spatial resolution in parallel, it is stable with respect to parameter changes, and it produces surface velocities seen in actual ice streams.

Bueler, Ed

2008-01-01T23:59:59.000Z

147

ARIANNA: A radio detector array for cosmic neutrinos on the Ross Ice Shelf  

E-Print Network (OSTI)

ARIANNA (The Antarctic Ross Ice Shelf Antenna Neutrino Array) is a proposed 100 km^3 detector for ultra-high energy (above 10^17 eV) astrophysical neutrinos. It will study the origins of ultra-high energy cosmic rays by searching for the neutrinos produced when these cosmic rays interact with the cosmic microwave background. Over 900 independently operating stations will detect the coherent radio Cherenkov emission produced when astrophysical neutrinos with energy above 10^17 eV interact in the Antarctic Ross Ice Shelf. Each station will use 8 log periodic dipole antennas to look for short RF pulses, with the most important frequencies between 80 MHz and 1 GHz. By measuring the pulse polarization and frequency spectrum, the neutrino arrival direction can be determined.

Klein, Spencer R

2012-01-01T23:59:59.000Z

148

ORISE: Delivering Cost Savings and Customer Service with Off-the-Shelf  

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

Cost Savings and Customer Service Cost Savings and Customer Service ORISE delivers Cost Savings and Customer Service with Off-the-Shelf Software The Oak Ridge Institute for Science and Education's (ORISE) Scientific Peer Review Program is no different than any other organization striving to do more with less in the current economy. With smaller budgets and faster turnaround needed for proposal reviews, utilizing Web-based collaboration tools to share information is necessary. Therefore, the ORISE team built a project tracking and management system with off-the-shelf products-an immediate cost and time-saver. In a recent example involving the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE), ORISE conducted an annual merit review-a complete and objective examination of DOE funded projects

149

Heavy mineral dispersal patterns of the abyssal plain and Louisiana inner shelf of the Gulf of Mexico  

E-Print Network (OSTI)

HEAVY MINERAL DISPERSAL PATTERNS OF THE ABYSSAL PLAIN AND LOUISIANA INNER SHELF OF THE GULF OF MEXICO A Thesis WALTER RICHARD MOORE Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE January 1969 Major Subject: Geological Oceanography HEAVY MINERAL DISPERSAL PATTERNS OF THE ABYSSAL PLAIN AND LOUISIANA INNER SHELF OF THE GULF OF MEXICO A Thesis by WALTER RICHARD MOORE Approved as to style...

Moore, Walter Richard

2012-06-07T23:59:59.000Z

150

Continental shelf processes affecting the oceanography of the South Atlantic Bight. Progress report, 1 June 1979-31 May 1980  

SciTech Connect

The papers included in this progress report summarize some significant developments in understanding the South Atlantic Bight. Some of the results are summarized as follows: Onslow Bay flushing rates can be determined using a model based on an exponential dilution model; eddy induced nitrate flux accounts for most input of new nitrogen into shelf waters; and tarballs in the Gulf Stream are not transported to the nearshore because of an apparent inner shelf density front.

Atkinson, L P

1980-02-29T23:59:59.000Z

151

Geomorphic interpretation of the bathymetry of the Bay of Campeche seaward of the continental shelf  

E-Print Network (OSTI)

, is it covers a large seotor of the Gulf~ its study is involved in a number of larger& particularly interesting problems that are ourrently attracting the attention of geologists, Paul Weaver (1950) says about the Oulfc "'Ihe two theories ~ one... enough evidcnoe fram hydrographic surveys and. bottom samples so that he can recommend local areas for test of the two theories~ he will speed the evaluat1on and operating program (of petro- leum development) of the continental shelf with maximum...

Creager, Joe S

2012-06-07T23:59:59.000Z

152

Transport and transfer rates in the waters of the continental shelf. Annual report  

SciTech Connect

The goal of govern project is to understand and quantify the processes that the transport and dispersal of energy-related pollutants introduced to the waters of the continental shelf and slope. The report is divided into sections dealing with processes associated with suspended solids; processes associated with sediments sinks for radionuclides and other pollutants; and spreading of water characteristics and species in solution. (ACR)

Biscaye, P.E.

1980-09-01T23:59:59.000Z

153

The petrology and petrography of sediments from the Sigsbee blanket, Yucatan Shelf, Mexico  

E-Print Network (OSTI)

of the Yucatan Shelf. A detailed petrographic study has revealed ChaC the unit is composed dominantly of planktonic lutite with varying percentages of calcareous pellets, ooids lithic fragments, non-skeletal aggregates, algal fragment ~, tests of benthonic... foraminifera and fragments of shells and skeletons of mollusks, coral, bryozoans and echiuoid. The landward boundary of the unit is a gradation with the adjacent skeletal calcareniCes that occur on the inner shelft the seaward boundary may extend as far...

Williams, Joseph Delano

2012-06-07T23:59:59.000Z

154

New Ulm field: an example of Cretaceous shelf-slope instability in east Texas  

SciTech Connect

The New Ulm field in Austin County, Texas, is an example of the structural and stratigraphic complexity above the Cretaceous Edwards shelf margin of east Texas. Deep wells and improved seismic data provide documentation of structural patterns and deepwater facies not previously considered in the Gulf Coast reservoir play modeling. Study of the data implies the Late Cretaceous to Eocene section was deposited along a shelf-slope break. Late Cretaceous, pre-Midway sedimentation was affected by structurally induced slope instability, and consequent gravity faulting and slumping resulted in an irregular sea-floor surface. Paleocene Midway sands were carried onto this surface by storm-generated density currents where the uneven topography caused deposition in constructional channels. Continued deposition of the fluvio-deltaic Wilcox on this surface caused faulting and folding by differential compaction. The folds are minor and the faults small and steep, not like the typical large growth faults of the Gulf Coast. Upper Wilcox sediments were progressively less disturbed as the region stabilized. New Ulm field production includes gas from the Midway Formation and oil and gas from the Wilcox Group. Midway reservoirs are stratigraphic, consisting of fluvio-deltaic sandstones within faulted anticlines. This study adds evidence to data describing shelf-slope geology along the Edwards margin. The setting can be a new type of hydrocarbon play in the Gulf Coast.

Pinero, E.

1984-04-01T23:59:59.000Z

155

Mixed carbonate-siliciclastic infilling of a Neogene carbonate shelf-valley system: Tampa Bay, West-Central Florida  

Science Journals Connector (OSTI)

The shelf-valley system underlying Tampa Bay, Floridas largest estuary, is situated in the middle of the Neogene carbonate Florida Platform. Compared to well-studied fluvially incised coastal plain valley systems, this shelf-valley system is unique in its karstic origin and its alternating carbonate-siliciclastic infill. A complex record of sea-level changes, paleo-fluvial variability and marine processes have controlled the timing and mechanisms of this compound shelf-valley infill. A dense grid of high-resolution, single-channel seismic data were collected at the mouth of Tampa Bay, in an attempt to define this stratigraphy, determine the controls on deposition, and define the underlying structure of this shelf-valley system. The seismic data were correlated with nearby wells and boreholes for lithologic and age control. Sequence stratigraphic methods were incorporated in order to develop an integrated chronostratigraphy for the depositional infilling of the shelf-valley system. Five seismic sequences were identified. Sequence boundaries generally show erosional truncation and karstification, with downlap of overlying sequences. Structure contour and isopach maps indicate that the Tampa Bay shelf-valley system has remained in essentially the same location since its formation in the early Miocene, although the provenance of sedimentary infill has changed. This change is due to increasing amounts of siliciclastic material during the Neogene. Seismic facies interpretations indicate lower-energy, northward prograding deposition dominated by predominantly carbonate sediments within the lowest Sequence A. Higher energy, siliciclastic fluvio-deltaic deposition within sequences B and C originates to the east and northeast of the shelf-valley system related to a Pliocene pulse of sedimentation onto the Florida Platform. Finally, marine processes (longshore transport, ebb-tidal delta formation) dominate the upper two sequences (D and E), reworking these siliciclastic sediments into a spatially mixed carbonate-siliciclastic depositional setting.

David S Duncan; Stanley D Locker; Gregg R Brooks; Albert C Hine; Larry J Doyle

2003-01-01T23:59:59.000Z

156

Combination of pulsed electric field processing and antimicrobial bottle for extending microbiological shelf-life of pomegranate juice  

Science Journals Connector (OSTI)

Abstract Pomegranate juice was processed using bench top (7.2L/h flow rate, 35kV/cm field strength, 72s total treatment time) and pilot scale (100L/h flow rate, 35kV/cm field strength, 281s total treatment time) continuous pulsed electric field (PEF) processing systems. The treated juice was packaged in PET bottles or PET bottles coated with potassium sorbate and sodium benzoate, and stored at 4C for 84days. Samples were assessed every 7days for total aerobic bacteria and yeast and mold. Untreated juice had less than one week of shelf-life, while untreated juices in antimicrobial bottles had 56days. Juices treated with PEF alone had a shelf-life of 21days (bench scale) and over 84days (pilot scale). Juices treated with PEF and stored in antimicrobial bottles had a shelf-life over 84days for both scale tests, which significantly extended the microbiological shelf-life of pomegranate juice. Industrial relevance Pulsed electric field (PEF), one of novel non-thermal processing technologies, has been studied intensively worldwide for the last decades. However, most of them were done at laboratory scale and few were at pilot or commercial scale. In addition, PEF processing alone may not provide enough shelf-life of juice as juice industry expects. The work in this paper shows the side-by-side comparison of PEF processing at lab and pilot scales and demonstrates that the combination of PEF with antimicrobial battle packaging significantly extended the shelf-life of juice. The use of a large scale PEF processing system and the combination of antimicrobial packaging provide juice manufacturers an innovate approach for enhancing the safety and extending the shelf-life of juice products.

Tony Z. Jin; Mingming Guo; Ruijin Yang

2014-01-01T23:59:59.000Z

157

AAAS/Science | 1200 New York Avenue, NW | Washington, DC 20005 | USA | +1-202-326-6730 | scienceonline@aaas.org FOR IMMEDIATE RELEASE CONTACT: Natasha Pinol  

E-Print Network (OSTI)

AAAS/Science | 1200 New York Avenue, NW | Washington, DC 20005 | USA | +1 Care Professionals in the UK Receive One-Year Trial Access to Science Translational Medicine and Science Signaling Washington, D.C., 1 May 2014--The American Association for the Advancement of Science

Napp, Nils

158

2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4 { HYPERLINK "http://www.schulich.ucalgary.ca" }  

E-Print Network (OSTI)

2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4 ·{ HYPERLINK "http to support the 2005 North America Solar Challenge (NASC) ­ the longest solar car race in the world. The race Wireless Inc, all solar cars will be equipped with CSI-built Asset-Link tracking systems while Uof

Calgary, University of

159

1155 Sixteenth Street N.W., Washington, DC 20036 Published by American Chemical Society. Copyright © American Chemical Society.  

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

Chemical Society. Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Published by American Chemical Society. Copyright © American Chemical Society. However, no copyright claim is made to original U.S. Government works, or works produced by employees of any Commonwealth realm Crown government in the course of their duties. Article Radical Coupling Reactions in Lignin Synthesis: A DFT study Amandeep Kaur Sangha, Jerry Matthew Parks, Robert F. Standaert, Angela Ziebell, Mark F Davis, and Jeremy C. Smith J. Phys. Chem. B, Just Accepted Manuscript * DOI: 10.1021/jp2122449 * Publication Date (Web): 04 Apr 2012 Downloaded from http://pubs.acs.org on April 10, 2012 Just Accepted "Just Accepted" manuscripts have been peer-reviewed and accepted for publication. They are posted

160

Mr. Witliam Augustine CECW-B U.S. Army Corps of Engineers 20 Massachusetts Ave., N.W~  

Office of Legacy Management (LM)

:!lJY ' :!lJY ' 6 I!499 Mr. Witliam Augustine CECW-B U.S. Army Corps of Engineers 20 Massachusetts Ave., N.W~ Washington, D.C 20314-1000 Re: Former Harshaw Chemical Company Site Dear Mr. Augustine: As requested, this note is in follow-up to several phone conversations between Department of Energy (DOE) and Army Corps of Engineers staff and counsel concerning why DOE did not previously include the Former Harshaw Chemical Company site in Cleveland, Ohio in the Formerly Utilized Sites Remedial Action Program (FUSRJG' ), when DOE was responsible for FUSRAP. As indicated in my June 3 letter to you, DOE has performed historical research regarding the site and has concluded, pursuant to the March 1999 MOU between DOE and the Army Corps of Engineers, that this site was used for activities which supported the Nation'

Note: This page contains sample records for the topic "nw shelf abo" 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

SNR Denton US LLP 1301 K Street, NW Suite 600, East Tower Washington, DC 20005-3364 USA  

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

SNR Denton US LLP SNR Denton US LLP 1301 K Street, NW Suite 600, East Tower Washington, DC 20005-3364 USA Thomas C. Jensen Partner thomas.jensen@snrdenton.com D +1 202 408 3956 M 703 304 5211 T +1 202 408 6400 F +1 202 408 6399 snrdenton.com March 28, 2012 BY E-MAIL Lamont Jackson Office of Electricity Delivery and Energy Reliability Mail Code: OE-20 U.S. Department of Energy 1000 Independence Avenue SW Washington, DC 20585 Re: OE Docket No. RRTT-IR-001 Dear Mr. Jackson:: This letter is submitted on behalf of PPL Electric and Public Service Electric and Gas Company ("PSE&G") 1 ,(referred to herein as "the Companies") with respect to the Susquehanna-Roseland

162

Spatial and temporal characteristics of aftershocks of the December 26, 2004 and March 28, 2005 earthquakes off NW Sumatra  

Science Journals Connector (OSTI)

Two aftershock series following the December 26, 2004 (Mw=9.0) and the March 28, 2005 (Mw=8.6) earthquakes off coast of NW Sumatra are studied. Deduced space heterogeneity of b-values, in the GutenbergRichter formula, and p-values, in the Omori law, show significant variations. General agreement is found between areas of high b and areas of significant slip predicted by different source models presented by other workers. Correlation with high p-values does exist, however, is less pronounced. The largest aftershocks occur during or near time periods when b-values reach their local minima. To examine the stability of results, two global earthquake catalogues (ISC and NEIC), different threshold magnitudes, moving-window lengths and moving steps were employed. The presented b- and p-distributions exhibit high confidence levels.

Paiboon Nuannin; Ota Kulhnek; Leif Persson

2012-01-01T23:59:59.000Z

163

Annual daylighting performance of a passive optical light shelf in sidelit  

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

Annual daylighting performance of a passive optical light shelf in sidelit Annual daylighting performance of a passive optical light shelf in sidelit perimeter zones of commercial buildings Title Annual daylighting performance of a passive optical light shelf in sidelit perimeter zones of commercial buildings Publication Type Report Year of Publication 2013 Authors McNeil, Andrew, and Eleanor S. Lee Keywords bidirectional scattering distribution functions, building energy efficiency, daylighting, Radiance simulations Abstract Sunlight redirecting systems have the potential to significantly offset electric lighting energy use in deep perimeter zones of buildings where the windows are subject to high daylight availability. New Radiance modeling tools have recently been developed and validated, enabling accurate and timely simulation analysis of the annual energy and comfort performance of these optically-complex, anisotropic systems. A parametric study was conducted using these tools to evaluate the performance of a commercially-available passive optical light shelf (OLS) in a 17.4 m deep (57 ft), south-facing open plan office zone in three climates. Daylighting efficiency, discomfort glare, and lighting energy savings with continuous dimming and bi-level switching controls were determined at varying depths within the zone. The OLS decreased lighting energy use significantly throughout the depth of the space and achieved these savings with minimal discomfort glare in the area near the window. Annual lighting energy use intensity was reduced to 1.71-1.82 kWh/ft2-yr (22-27%) over the full depth of the perimeter zone across the three climates modeled (Phoenix, Washington DC, and Minneapolis) compared to a non-daylit zone at 2.34 kWh/ft2-yr. There was a greater occurrence of discomfort glare (3-7% during daytime work hours) if the occupant was in a seated view position looking at the window from the back of the room. The system is passive, needing no adjustment during the day and over the seasons and can be used as a retrofit measure in existing buildings. These results are encouraging and demonstrate how the primary daylit sidelit area can be extended well beyond the defined limits provided by the newly adopted ASHRAE 90.1-2010 code (i.e., 1.0 times the head height of the window).

164

CO2 Huff-n-Puff Process in a Light Oil Shallow Shelf Carbonate Reservoir  

SciTech Connect

The principal objective of the Sundown Slaughter Unit (SSU) CO2 Huff- n- Puff (H- n- P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. Sundown Slaughter Unit is the second demonstration site associated with this project, following the unsuccessful test at Central Vacuum Unit. The ultimate goal will be to develop guidelines based on commonly available data that other operators in the industry can use to investigate the applicability of the process within other fields. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy's (DOE) objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate (SSC) reservoirs. Tasks associated with this objective are carried out in what is a timely effort for near- term goals. The goal of this Sundown Slaughter Unit Project is to demonstrate the CO2 Huff- n- Puff process in a waterflooded, light oil, shallow shelf carbonate reservoir within the Permian Basin. The CO2 Huff- n- Puff process is a proven enhanced oil recovery technology for Louisiana- Texas gulf coast sandstone reservoirs. The reader is referred to three Society of Petroleum Engineer (SPE) papers, No. 15502, No. 16720 & No. 20208 for a review of the theory, mechanics of the process, and several case histories. The process has even been shown to be moderately effective in conjunction with steam on heavy California crude oils. Although the technology is proven in gulf coast sandstones, it continues to be a very underutilized enhanced recovery option for carbonates. The goal of this technology demonstration is to gain an overall understanding of the reservoir qualities that influence CO2 Huff- n- Puff production responses within a heterogeneous reservoir such as the shallow shelf carbonate environment of the Sundown Slaughter Unit. A generalized reservoir model was developed and used to determine the importance of various geological and operational influences upon the CO2 Huff- n- Puff process at CVU. The findings at CVU would be applied to the demonstration site at SSU without further simulation studies being conducted at SSU.

John Prieditis; Mark Kovar; Roger Cole; Scott Wehner

1998-02-02T23:59:59.000Z

165

Wind induced circulation on the outer continental shelf of Texas, spring 1982  

E-Print Network (OSTI)

showing current meter moorings and meteorological buoy positions. Cross-section of the Texas shelf along 95'W showing the 9 distribution of the moored instruments used in the spring 1982 study. Time series of wind velocity data from NDBO buoys 42002... time series of Mooring III meter 4 (200 m/400 m). 33 35 37 Figure 13. The autospectra of the u- and v-velocity components of 41 the wind from buoy 42002. Figure 14. The autospectra of the u-components of current velocity 43 from II-2 (86 m...

Beard, Daniel Walker

2012-06-07T23:59:59.000Z

166

Performance of commercial off-the-shelf microelectromechanical systems sensors in a pulsed reactor environment  

SciTech Connect

Prompted by the unexpected failure of piezoresistive sensors in both an elevated gamma-ray environment and reactor core pulse tests, we initiated radiation testing of several MEMS piezoresistive accelerometers and pressure transducers to ascertain their radiation hardness. Some commercial off-the-shelf sensors are found to be viable options for use in a high-energy pulsed reactor, but others suffer severe degradation and even catastrophic failure. Although researchers are promoting the use of MEMS devices in radiation-harsh environment, we nevertheless find assurance testing necessary.

Hobert, Keith Wdwin [Los Alamos National Laboratory; Heger, Arlen S [Los Alamos National Laboratory; Mc Cready, Steven S [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

167

Lower Permian facies of the Palo Duro Basin, Texas: depositional systems, shelf-margin evolution, paleogeography, and petroleum potential  

SciTech Connect

A Palo geological study suggests that potential hydrocarbon reservoirs occur in shelf-margin carbonates, delta-front sandstones, and fan-delta arkoses. Zones of porous (greater than 10 percent) dolomite are concentrated near shelf margins and have configurations similar to productive Lower Permian shelf-margin trends in New Mexico. Delta-front sandstones (log-computed porosity of 18 to 25 percent) are similar to producing deltaic sandstones of Morris Buie-Blaco Fields in North-Central Texas. Porous (18 percent) fan-delta sandstones along the south flank of the Amarillo Uplift may form reservoirs similiar to that of the Mobeetie Field on the north side of the Amarillo Uplife in Wheeler County, Texas. Potential hydrocarbon source beds occur in slope and basinal environments. Total organic carbon generally ranges from 1 to 2.3 percent by weight and averages 0.589 percent by weight.

Handford, C.R.

1980-01-01T23:59:59.000Z

168

3 Changes to the large marine ecosystem of the Newfoundland-Labrador shelf  

Science Journals Connector (OSTI)

Publisher Summary The Grand Banks of Newfoundland and Labrador have been fished since the 1400s, with fleets coming annually from many of the fishing nations of Europe, and by the 1600s, from North America. The Banks and coastal areas were rich and productive, and formed the basis for settlement of coastal areas of Newfoundland and Labrador, despite policies that were intended to deter settlement. Notwithstanding the long history of change, the two most marked fluctuations in biological resources of the Newfoundland Shelf have occurred in the past half century. The first was almost certainly driven by the rapid expansion of distant water fleets during the late 1950s, and the nearly two decades of intensive fishing effort those fleets inflicted on the major fish stocks of the Shelf. Note that "present understanding" is a dynamic factor- different explanations for changes in the dominant fish stocks have been promoted by different researchers at different times, and new relationships continue to emerge as more data sets are brought together.

Jake Rice

2002-01-01T23:59:59.000Z

169

ARIANNA: A radio detector array for cosmic neutrinos on the Ross Ice Shelf  

E-Print Network (OSTI)

ARIANNA (The Antarctic Ross Ice Shelf Antenna Neutrino Array) is a proposed 100 km^3 detector for ultra-high energy (above 10^17 eV) astrophysical neutrinos. It will study the origins of ultra-high energy cosmic rays by searching for the neutrinos produced when these cosmic rays interact with the cosmic microwave background. Over 900 independently operating stations will detect the coherent radio Cherenkov emission produced when astrophysical neutrinos with energy above 10^17 eV interact in the Antarctic Ross Ice Shelf. Each station will use 8 log periodic dipole antennas to look for short RF pulses, with the most important frequencies between 80 MHz and 1 GHz. By measuring the pulse polarization and frequency spectrum, the neutrino arrival direction can be determined. In one year of operation, the full array should observe a clear GZK neutrino signal, with different models predicting between 3 and 51 events, depending on the nuclear composition of the cosmic-rays and on the cosmic evolution of their sources.

Spencer R. Klein; for the ARIANNA Collaboration

2012-11-01T23:59:59.000Z

170

Deepening of the ocean mixed layer at the northern Patagonian continental shelf: a numerical study  

E-Print Network (OSTI)

A possible deepening of the ocean mixed layer was investigated at a selected point of the Patagonian continental shelf where a significant positive wind speed trend was estimated. Using a 1-dimensional vertical numerical model (S2P3) forced by atmospheric data from NCEP/NCAR I reanalysis and tidal constituents from TPXO 7.2 global model on a long term simulation (1979-2011), it was found that the mixed layer thickness presents a significant and positive trend of 10.1 +/- 1.4 cm/yr. Several numerical experiments were carried out in order to evaluate the impact of the different atmospheric variables (surface zonal and latitudinal wind components, air temperature, atmospheric pressure, specific humidity and cloud coverage) considered in this study. As a result it was found that an increase in the wind speed can be considered as the main responsible of the ocean mixed layer deepening at the selected location of the Patagonian continental shelf. A possible increasing in the mixed layer thickness could be directly ...

Zanella, Juan; Pescio, Andres; Dragani, Walter

2014-01-01T23:59:59.000Z

171

High?frequency acoustic propagation measurements during solitary wave events on the eastern continental shelf edge  

Science Journals Connector (OSTI)

High?frequency environmental acoustics studies were conducted during July 1993 on the continental shelf edge east of New Jersey. Internal solitons previously observed in this region near the shelf/slope front propagate in packets usually in the summer seasonal thermocline and have been associated with anomalous low frequency sound propagation. Acoustic pings were collected using a towed sled instrumented with sonar arrays. Synoptic measurements to characterize the solitons including sound velocity profiles sampled every 10 min over a tidal cycle and moored data including current temperature and conductivity. Acoustic measurements were taken during sled tows parallel to the bottom bathymetry normal to the propagation direction over a region determined from bottom cores to be nearly homogeneous fine sand. Measurements were taken using the sled as a source for backscattermeasurements and also using moored acoustic sources and the sled based transducers as receivers. The observed solitons had amplitudes of approximately 10 m and periods of several minutes. The backscatter variability during soliton events was observed to approximately 1020 dB and will be compared to modeled predictions based on environmental data.

Edward R. Levine; Richard R. Shell; Michael R. Medeiros

1994-01-01T23:59:59.000Z

172

C/O HELP PLLC, 750 SEVENTEETH STREET N.W. SUITE 900 Washington, D.C. 20006 Tel. Tel. Tel. Tel. 202-378-2300  

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

C/O HELP PLLC, 750 SEVENTEETH STREET N.W. SUITE 900 Washington, D.C. 20006 Tel. Tel. Tel. Tel. 202-378-2300 C/O HELP PLLC, 750 SEVENTEETH STREET N.W. SUITE 900 Washington, D.C. 20006 Tel. Tel. Tel. Tel. 202-378-2300 February 27, 2012 Submitted via email to: Brian.Mills@hq.doe.gov Mr. Brian Mills Office of Electricity Delivery and Energy Reliability (OE-20) U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Re: Coordination of Federal Authorizations for Electric Transmission Facilities, RIN 1901-AB18 Dear Mr. Mills: On behalf of WIRES (www.wiresgroup.com) I am pleased to submit the attached Comments in response to the Notice of Proposed Rulemaking on Coordination of Federal Authorizations for Electric Transmission Facilities. WIRES regards the work of Assistant Secretary Hoffman and OEDER in the area of electric transmission planning

173

A 0.45NW, 0.5V, 59-DB DR, Gm-C LOW-PASS FILTER FOR PORTABLE ECG RECORDING  

E-Print Network (OSTI)

A 0.45NW, 0.5V, 59-DB DR, Gm-C LOW-PASS FILTER FOR PORTABLE ECG RECORDING Chutham Sawigun, Senad. Abstract: This paper presents the design of a sub-threshold CMOS G,,,-C low-pass filter in a portable ECG.23Vpp. 1 INTRODUCTION As a consequence of the heart activity, electrocardiograms (ECGs) can be recorded

Serdijn, Wouter A.

174

Spatial and Temporal Variability of the M2 Internal Tide Generation and Propagation on the Oregon Shelf  

E-Print Network (OSTI)

tide energy onto the Oregon shelf, where it is dissipated, does not vary much with time. ApproximatelySpatial and Temporal Variability of the M2 Internal Tide Generation and Propagation on the Oregon is implemented along the Oregon coast to study average characteristics and intermittency of the M2 internal tide

Kurapov, Alexander

175

Variability in upwelling along the Pacific shelf of Panama and implications for the distribution of nutrients and chlorophyll  

E-Print Network (OSTI)

Variability in upwelling along the Pacific shelf of Panama and implications for the distribution, APO, AA 34002-0948, USA b Departamento de Biologi´a Marina y Limnologi´a, Universidad de Panama´, Estafeta Universitaria, Panama´ c Scripps Institute of Oceanography, La Jolla, CA 92093-00244, USA Received

Bermingham, Eldredge

176

www.sciencemag.org SCIENCE VOL 302 14 NOVEMBER 2003 1111 Algal Clues to Antarctic Ice Shelf Ages  

E-Print Network (OSTI)

the Perspective by Wolff) present an ice core record of methanesulfonic acid, a species produced by algae livingwww.sciencemag.org SCIENCE VOL 302 14 NOVEMBER 2003 1111 Algal Clues to Antarctic Ice Shelf Ages The naturally high variability of sea ice extent in Antarctica and the short duration of instrumental records

Nori, Franco

177

Horizontal coherence of low-frequency fixed-path sound in a continental shelf region with internal-wave activity  

E-Print Network (OSTI)

Horizontal coherence of low-frequency fixed-path sound in a continental shelf region with internal gain, horizontally lagged spatial correlation function, and coherent beam power. These quantities vary variations of three coher- ence measures, horizontal correlation length, array gain, and ratio of actual

178

The effect of antimicrobial agents and modified atmosphere packaging on the microbial shelf life of corn tortillas  

E-Print Network (OSTI)

IX Experiment ?1: pHa and colorb of corn tortillas pack- aged (and stored) in polyethylene and modified atmos- phere bagsc 76 X Experiment ?1: shelf life of corn tortillas packaged in plastic and MAPa bags and stored at 25' and 4'C...

Tellez-Giron, Alfredo

1988-01-01T23:59:59.000Z

179

Stable Isotope Characterization and Proxy Records of Hypoxia-Susceptible Waters on the Texas-Louisiana Shelf  

E-Print Network (OSTI)

and the respiration of marine OC at depths equal to and greater than 20 m. delat^18O and delta^13C profiles of Louisiana shelf Conus shells collected in 1972 show no evidence for summer hypoxia. Comparison with modern Conus records reveal a delta^13CDIC reduction...

Strauss, Josiah

2012-02-14T23:59:59.000Z

180

CO2 Huff-n-Puff Process in a Light Oil Shallow Shelf Carbonate Reservoir  

SciTech Connect

The application cyclic CO2, often referred to as the CO2 Huff-n-Puff process, may find its niche in the maturing waterfloods of the Permian Basin. Coupling the CO2 Huff-n-Puff process to miscible flooding applications could provide the needed revenue to sufficiently mitigate near-term negative cash flow concerns in capital-intensive miscible projects. Texaco Exploration and Production Inc. and the US Department of Energy have teamed up in a attempt to develop the CO2 Huff-n-Puff process in the Grayburg and San Andres formations which are light oil, shallow shelf carbonate reservoirs that exist throughout the Permian Basin. This cost-shared effort is intended to demonstrate the viability of this underutilized technology in a specific class of domestic reservoir.

Boomer, R.J.; Cole, R.; Kovar, M.; Prieditis, J.; Vogt, J.; Wehner, S.

1999-02-24T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

Method using CO for extending the useful shelf-life of refrigerated red blood cells  

DOE Patents (OSTI)

A method is disclosed using CO for extending the useful shelf-life of refrigerated red blood cells. Carbon monoxide is utilized for stabilizing hemoglobin in red blood cells to be stored at low temperature. Changes observed in the stored cells are similar to those found in normal red cell aging in the body, the extent thereof being directly related to the duration of refrigerated storage. Changes in cell buoyant density, vesiculation, and the tendency of stored cells to bind autologous IgG antibody directed against polymerized band 3 IgG, all of which are related to red blood cell senescence and increase with refrigerated storage time, have been substantially slowed when red blood cells are treated with CO. Removal of the carbon monoxide from the red blood cells is readily and efficiently accomplished by photolysis in the presence of oxygen so that the stored red blood cells may be safely transfused into a recipient. 5 figs.

Bitensky, M.W.

1995-12-19T23:59:59.000Z

182

Method using CO for extending the useful shelf-life of refrigerated red blood cells  

DOE Patents (OSTI)

Method using CO for extending the useful shelf-life of refrigerated red blood cells. Carbon monoxide is utilized for stabilizing hemoglobin in red blood cells to be stored at low temperature. Changes observed in the stored cells are similar to those found in normal red cell aging in the body, the extent thereof being directly related to the duration of refrigerated storage. Changes in cell buoyant density, vesiculation, and the tendency of stored cells to bind autologous IgG antibody directed against polymerized band 3 IgG, all of which are related to red blood cell senescence and increase with refrigerated storage time, have been substantially slowed when red blood cells are treated with CO. Removal of the carbon monoxide from the red blood cells is readily and efficiently accomplished by photolysis in the presence of oxygen so that the stored red blood cells may be safely transfused into a recipient.

Bitensky, Mark W. (Los Alamos, NM)

1995-01-01T23:59:59.000Z

183

Semidiurnal tides in the Laptev Sea Shelf zone in the summer season  

Science Journals Connector (OSTI)

Abstract Tidal processes play an important role in the dynamics of shelf circulation in the Laptev Sea. The Unstructured Grid Finite Volume Coastal Ocean Model (FVCOM) is used to simulate the tidal dynamics in the Lena Delta region of the Laptev Sea in ice-free barotropic case. The grid element size ranges from 400m to 5km. The major semidiurnal tidal waves M 2 and S 2 are investigated with the M 2 being the most important in generating large sea level amplitudes and currents over shallow areas. A correction to the tidal elevation at the open boundary is proposed, which minimizes the discrepancy between the model prediction and observations. The observations include both recent mooring data and the standard set of tide gauge measurements used in previous studies. The comparison of results to known tidal solutions is carried out. The paper also discusses the residual circulation and energy fluxes and assesses the impact of additional bathymetric information.

V. Fofonova; A. Androsov; S. Danilov; M. Janout; E. Sofina; K. Wiltshire

2014-01-01T23:59:59.000Z

184

Continental Shelf processes affecting the oceanography of the South Atlantic Bight  

SciTech Connect

Progress in studies of the physical processes affecting the oceanography of the South Atlantic Bight is reported. NCSU personnel efforts have been focused on processing and analyzing existing data sets as well as planning and preparing for the Georgia Atlantic Bight Experiment (GABEX-1). Three cruises were conducted between June 1979 and February 1980 for the temperature/pressure recording instruments (June to Oct) and for the deployment of the GABEX I and other arrays. The Onslow Bay data sets extend over four years of observations from the mid- and outer-shelf region. Each mooring cruise has been coordinated with similar mooring deployments off Savannah and off Cape Romain with hydrographic cruises and with interdisciplinary cruises following Gulf Stream filaments and involving biological, chemical and physical oceanographers. The current meter data collected in the Carolina Capes is listed. Preprints and reprints are included.

Pietrafesa, L.J.

1980-04-14T23:59:59.000Z

185

Shelf and deep-sea sedimentary environments and physical benthic disturbance regimes: A review and synthesis  

Science Journals Connector (OSTI)

Abstract Physical disturbances of the seafloor play a key role in ecosystem function and are postulated to exert control over spatial patterns of biodiversity. This review investigates the role of natural physical sedimentological processes that occur in shelf, slope and abyssal environments that also act as disturbances to benthic ecosystems and which, under certain circumstances, give rise to benthic disturbance regimes. Physical sedimentological processes can cause both press (process that causes a disturbance by acting over a timespan that is intolerable to benthos) and pulse (process that causes a disturbance by exceeding a threshold above which benthos are unable to remain attached to the seabed or are buried under rapidly deposited sediment) types of disturbance. On the continental shelf, pulse-type disturbances are due to temperate and tropical storm events, and press-type of disturbances identified here are due to the migration of bedforms and other sand bodies, and sustained periods of elevated turbidity caused by seasonally reversing wind patterns. On the continental slope and at abyssal depths, pulse-type disturbances are due to slumps, turbidity currents; benthic storms may cause either press or pulse type disturbances. A possible press-type of disturbance identified here is inter-annual changes in abyssal bottom current speed and/or direction. It is concluded that: 1) physical sedimentary disturbance regimes may characterize as much as 10% of the global ocean floor; 2) multidisciplinary research programs that integrate oceanography, sedimentology and benthic ecology to collect time series observational data sets are needed to study disturbance regimes; and 3) predictive habitat suitability modeling must include disturbance regime concepts, along with other biophysical variables that define the fundamental niches of marine species, in order to advance.

Peter T. Harris

2014-01-01T23:59:59.000Z

186

MITAS-2009 Expedition, U.S. Beaufort Shelf and SlopeLithostratigraphy Data Report  

SciTech Connect

The volume of methane released through the Arctic Ocean to the atmosphere and its potential role in the global climate cycle have increasingly become the focus of studies seeking to understand the source and origin of this methane. In 2009, an international, multi-disciplinary science party aboard the U.S. Coast Guard icebreaker Polar Sea successfully completed a trans-U.S. Beaufort Shelf expedition aimed at understanding the sources and volumes of methane across this region. Following more than a year of preliminary cruise planning and a thorough site evaluation, the Methane in the Arctic Shelf/Slope (MITAS) expedition departed from the waters off the coast of Barrow, Alaska in September 2009. The expedition was organized with an international shipboard science team consisting of 33 scientists with the breadth of expertise necessary to meet the expedition goals. NETL researchers led the expeditions initial core processing and lithostratigraphic evaluations, which are the focus of this report. This data report is focused on the lithostratigraphic datasets from the recovered vibra cores and piston cores. Operational information about the piston and vibra cores such as date acquired, core name, total length, water depth, and geographic location is provided. Once recovered, gas samples were immediately collected from cores. In addition, each core was run through the Geotek multi-sensor core logger for magnetic susceptibility, P-wave velocity, resistivity, and gamma-density measurements (Rose et al., 2010). After the samples and measurements were completed, the cores were split into working and archive halves. Visual core descriptions of the archive half was completed for each core. Samples for shipboard smear slides, coarse fractions, and XRD analyses were collected, as well as corresponding samples for post-cruise grain size analysis from the working half of each core. Line scan images of the split core surfaces were collected post-expedition. The methods used to characterize the lithostratigraphy of the recovered cores are described.

Rose, K.; Johnson, J.E.; Phillips, S.C.; Smith, J.; Reed, A.; Disenhof, C.; Presley, J.

2012-09-17T23:59:59.000Z

187

Shannon Sandstone in Wyoming: A shelf-ridge complex reinterpreted as lowstand shoreface deposits  

SciTech Connect

The Shannon Sandstone (Campanian) of Wyoming was formerly interpreted as two stacked shelf-ridge complexes. Sand was believed to have been transported from a time-equivalent shoreline 110-150 km to the west and reworked or molded into ridges at the depositional site. The authors show that this time-equivalent shoreline section at Lucerne, Wyoming, consists of not one shoreface sandbody, but two superimposed. They are both storm-dominated, and the lower one terminates in beach facies capped by root traces. There must have been a rise in relative sea level of at least 14m to make accommodation space for the second shoreface sandbody. In the Slat Creek area and the adjacent subsurface Teapot Dome, there are two sandier-upward facies successions. In the lower succession there are abrupt vertical facies contacts between offshore bioturbated sandstones, thicker hummocky cross-stratified sandstones, and coarser cross-bedded sandstones. There is also evidence that the cross-bedded sandstones rest erosively on underlying facies. The trace fauna in the sandstones includes Macaronichnum segregatis, Rosselia socialis, and Ophiomorpha. The M. segregatis suggests a foreshore or upper-shoreface depositional environment, and R. socialis indicates a lower to middle shoreface; neither are characteristic of a shelf-ridge complex. The abrupt and probably erosive facies contacts, along with the trace fauna, suggest that the cross-bedded sandstones in this succession represent a shoreface deposit that formed during a stage of actively falling relative sea level. Overlying muddy bioturbated sandstones indicate that shoreface deposition was terminated by a transgression. The upper sandier-upward succession contains facies and trace fauna similar to those of the lower succession, and is also interpreted as a prograding shoreface.

Walker, R.G.; Bergman, K.M. (McMaster Univ., Hamilton, Ontario (Canada). Dept. of Geology)

1993-09-01T23:59:59.000Z

188

Distribution of size-fractionated particulate trace metals collected by bottles and in-situ pumps in the Gulf of MaineScotian Shelf and Labrador Sea  

Science Journals Connector (OSTI)

The distribution of size-fractionated particulate trace metals (Al, Fe, Mn, Pb, Cu, V, and Co) was investigated in the Gulf of MaineScotian Shelf and Labrador Sea by collection of particulate matter using water bottles (Go-flo) and large volume in-situ pumps (Challenger Oceanic Systems and Services). Trace metal procedural filter blanks for Poretics membrane filters (0.4- and 10 ?m pore size) and Nitex screens (53 ?m mesh size) were sufficiently low that metal concentrations could be measured reliably. These results validate the use of Challenger Oceanics Systems and Services in-situ pumps for collection of particulate trace metals (Al, Fe, Mn, Pb, Cu, V, and Co) in shelf, slope, and open ocean Atlantic waters. In the Gulf of MaineScotian Shelf and Labrador Sea, trace metal concentrations per volume filtered generally decrease with increasing particle size for all metals. In the upper 250 m of slope waters of the Gulf of MaineScotian Shelf and in the Labrador Sea, trace metal concentrations in all particle sizes are lower than in shelf waters. Higher particulate metal concentrations in shelf waters are consistent with an increase in the supply of these trace metals with proximity to continental sources. In addition, an increase in particulate trace metal concentrations in shelf waters with depth is attributed to an input from resuspended sediment.

Sarah E. Weinstein; S.Bradley Moran

2004-01-01T23:59:59.000Z

189

Estuarine, Coastal and Shelf Science (1999) 49, 483499 Article No. ecss.1999.0520, available online at http://www.idealibrary.com on  

E-Print Network (OSTI)

with water depth, implying the resuspension and lateral transport of SPM over the southern ECS shelf of mass and lithogenic fluxes on all trap occupations may arise from episodic events of resuspension

Lin, Andrew Tien-Shun

190

Depositional sequences and integrated recovery efficiency forecast models for San Andres and Clearfork Units in the Central Basin Platform and the Northern Shelf, west Texas  

E-Print Network (OSTI)

This paper develops depositional sequences of the carbonate ramp and the carbonate shelf models for an idealized cycle and multiple cycles of depositions. Based on the developed depositional sequences, the integrated recovery efficiency forecast...

Shao, Hongbin

2012-06-07T23:59:59.000Z

191

Shelf edge reflection of atmospherically generated long ocean waves along the central U.S. East Coast  

Science Journals Connector (OSTI)

Abstract This paper describes an investigation of unusual large-amplitude highfrequency sea level events (?4060cm) observed during the period 20062012 along the central U.S. East Coast. These events occurred 23h after offshore propagating atmospheric pressure disturbances crossed the coastline. The large amplitudes of the oscillations may be explained by Proudman resonance, as the average speed of the atmospheric pressure disturbances, estimated to be between 16 and 25m/s, was similar to the shallow-water wave speed over the shelf, ?1520m/s. The observed lag of 23h of the events can be explained by shoreward-propagating free waves generated as the atmospheric-forced waves crossed the shelf edge. The estimated pathways of the forced and reflected free ocean waves seem to have been coherent and in good agreement with the lag observed at tide gauge stations.

S. Pasquet; I. Vilibi?

2013-01-01T23:59:59.000Z

192

Market Research Survey of Commercial Off-The-Shelf (COTS) Portable MS Systems for IAEA Safeguards Applications  

SciTech Connect

This report summarizes the results for the market research survey of mass spectrometers that are deemed pertinent to International Atomic Energy Agency (IAEA) needs and strategic objectives. The focus of the report is on MS instruments that represent currently available (or soon to be) commercial off-the shelf (COTS) technology and weigh less than 400 pounds. A compilation of all available MS instruments (36 COTS and 2 R&D) is presented, along with pertinent information regarding each instrument.

Hart, Garret L.; Hager, George J.; Barinaga, Charles J.; Duckworth, Douglas C.

2013-02-01T23:59:59.000Z

193

Sequence stratigraphic and sedimentologic analysis of the Permian San Andres Formation (upper Leonardian-lower Guadalupian), Northwest Shelf, Permian Basin  

E-Print Network (OSTI)

, 1958). The Tobosa Basin was the site of dominantly shallow water deposition until the late Paleozoic (Hills, 1972; Hills, 1984). Collision between Gondwana and the southern margin of North America caused reactivation of older zones of weakness during...) was deposited on carbonate platforms around Permian Basin region and is an extensive hydrocarbon reservoir in this area. The San Andres Formation on the Northwest Shelf is well exposed in southeastern New Mexico and West Texas. This study establishes sequence...

Beserra, Troy Brett

2012-06-07T23:59:59.000Z

194

The nature and location of gassy sediment sections in the continental shelf and slope in the northwestern Gulf of Mexico  

Science Journals Connector (OSTI)

In the northwestern Gulf of Mexico continental shelf and upper slope gassy sediments are a pervasive phenomena and an important consideration relative to engineering and acoustic activities on the sea floor. An examination of seismic data from over a thousand M.M.S. geohazard reports and core logs of 1 670 foundation boreholes drilled to an average subbottom depth of 125 m on the continental shelf and upper slope in the northwestern Gulf has revealed that gassy sediment sections are most abundant near the Mississippi River Delta in the sediment fill of buried stream channels that were eroded during the early and late Wisconsinan and in Miocene and PlioPleistocene depocenters on the continental shelf and upper slope. Out of the 1 670 bore holes examined 1 158 (68%) contained indications of gassy sediments most of which is of biogenic origin. Large patches of gassy sediments exist some exceeding 10 km in size but most are less than 500 m. The examination of 500 piston cores up to 40 meters in length taken on the mid and lower continental slope areas were almost void of gassy sediments as the result of the halokeiesis of allocthonous salt.

2003-01-01T23:59:59.000Z

195

High-resolution seismic stratigraphic analysis of the Late Quaternary upper slope and shelf edge: Main Pass-Viosca Knoll area, Gulf of Mexico  

SciTech Connect

High-resolution (800 Hz) sparker data from the Main Pass-Viosca Knoll area, offshore Louisiana, show shelf-edge deltas with oblique progradational clinoforms, parallel, and channel-fill reflections in the near-surface, latest Quaternary section of the upper slope. Sequence boundaries are indicated by onlap of slope facies onto older outershelf deltas and shelf margins, erosional truncation, and minor channel erosion on the top of progradational units and on the slope. The authors tentatively identify these sequence boundaries as Type I. Each depositional sequence consists of two seismic units: (1) a lower unit consisting of parallel, seaward-dipping reflections; (2) an upper unit consisting of parallel reflections and progradational clinoforms that converge or downlap downslope on top of the lower parallel unit. Precise correlation to absolute time and sea level awaits analysis and integration of shallow cores taken in the area by an industry consortium. Facies and isochron mapping of each sequence indicates an overall back-stepping of the shelf-edge deltas and shelf margins during the latest Quaternary. The Quaternary shelf edges are an area of isochron thicks and thins resulting from erosion and redeposition. Major channels commonly cross salt diapirs and may occupy the same site during successive lowstands. Comparison with multichannel seismic profiles shows that each shelf-edge delta seen on the high resolution profiles is represented by a single reflection on multichannel data. Steep clinoforms, downlap surfaces, and individual sequences are not seen on the multichannel data.

McMillen, K.J. (Marathon Oil Co., Houston, TX (United States)); Winn, R.D. Jr. (Marathon Oil Co., Littleton, CO (United States)); Damuth, J.E. (Mobile Oil Co., Dallas, TX (United States)); Weimer, P. (Univ. of Colorado, Boulder (United States))

1991-03-01T23:59:59.000Z

196

The role of tides in shelf-scale simulations of the wave energy resource  

Science Journals Connector (OSTI)

Abstract Many regions throughout the world that are suitable for exploitation of the wave energy resource also experience large tidal ranges and associated strong tidal flows. However, tidal effects are not included in the majority of modelling studies which quantify the wave energy resource. This research attempts to quantify the impact of tides on the wave energy resource of the northwest European shelf seas, a region with a significant wave energy resource, and where many wave energy projects are under development. Results of analysis based on linear wave theory, and the application of a non-linear coupled wave-tide model (SWANROMS), suggest that the impact of tides is significant, and can exceed 10% in some regions of strong tidal currents (e.g. headlands). Results also show that the effect of tidal currents on the wave resource is much greater than the contribution of variations in tidal water depth, and that regions which experience lower wave energy (and hence shorter wave periods) are more affected by tides than high wave energy regions. While this research provides general guidelines on the scale of the impact in regions of strong tidal flow, high resolution site-specific coupled wave-tide models are necessary for more detailed analysis.

M. Reza Hashemi; Simon P. Neill

2014-01-01T23:59:59.000Z

197

Influences of salt structures on reservoir rocks in block L-2, Dutch continental shelf  

SciTech Connect

In the subsurface of the Netherlands Continental Shelf, thick layers of Zechstein salt have developed into salt domes and ridges that pierce through the overlying formations. To measure the range of lateral influence of the salt in these structures on the sandstone reservoir rocks of the Mesozoic sequence, a cementation model was developed. The target area, Block L-2, was chosen for the presence of salt domes, wells, and reservoir rocks. The L-2 case study has been performed on two Triassic sandstone intervals. The lower, Volpriehausen, sandstone showed halite cementation in one well, located within several 100 m from a salt dome. Four other wells, located more than 1.5 km from a salt structure, did not show any signs of halite cementation. Therefore, the lateral influence of salt domes on the surrounding reservoir rock is, in this case, limited to less than 1.5 km at 3-4 km depth. A slightly shallower Triassic sandstone (Detfurth) shows more frequent halite cementation. This cementation can be attributed to early seepage from overlying Rot salt brines.Triassic Rot salt is present above depletion areas of the Zechstein salt structures, and in such a way the seepage can be seen as an indirect influence of the salt structures.

Dronkert, H. (Delft Univ. of Technology, Delft (Netherlands)); Remmelts, G. (Geological Survey of the Netherlands, Haarlem (Netherlands))

1993-09-01T23:59:59.000Z

198

SmartShelf{trademark}: Report of activities for fiscal year 1997  

SciTech Connect

This report covers activities relating to the SmartShelf{trademark} project during the period October 1, 1996, through September 30, 1997. During this year, project team members have advanced the state of both the hardware and software through a six-month-long test that exercised all hardware and nearly all software components. Second-generation node hardware was constructed and tested with the system and it was found that components supplied by Dallas Semiconductor did not meet the manufacturer`s specifications and were unstable. However, it was possible to work around this problem by rapidly redesigning the second-generation printed circuit board to use proven first-generation electronics and still fit inside the custom designed second-generation enclosure. Thus, the benefits realized by adopting the custom enclosure was not compromised. The software was improved by moving the user interface from modules developed with LabView to forms, queries, and reports developed with Microsoft Access and the structures of the software was modified to take better advantage of the dynamic data exchange (DDE) client-server architecture built into the Windows95 operating system and Access.

Bell, Z.W.; Lawson, R.L.

1997-09-26T23:59:59.000Z

199

Regional geologic framework of Neogene-Quaternary deposits, Louisiana continental shelf  

SciTech Connect

The Louisiana Continental Shelf of the northern Gulf Coast Basin is one of the most prolific hydrocarbon provinces in the Nation. Its structural and stratigraphic characteristics were studied by means of a regional network of dip and strike cross sections based on subsurface data from wells penetrating to depths as great as 19,000 ft (5791 m) below mean sea level. The cross sections illustrate a gulfward-thickening wedge of terrigenous clastic Cenozoic deposits that have a complex structural fabric; structures are largely attributed to extensive depositional loading, which result in gravity failure and widespread diapirism. Major structural elements include systems of coast-parallel, syndepositional faults characterized by down-to-basin displacement, sectional thickening on the downthrown side, and increasing stratigraphic throw with depth. Abundant piercement salt domes, as well as numerous post-depositional fold sand gravity fault systems, are also present. The cross-sectional network illustrates the spatial distribution of about 30 chronostratigraphic units ranging in age from early Miocene to late Pleistocene. Regional variations in stratigraphic thickness reflect both coast-parallel and gulfward migrations of the basinal depocenter. Induction-electrical logs indicate the presence of three magnafacies that are defined on the basis of sand-shale proportions. Downdip facies changes to progressively more argillaceous units indicate a gulfward transition from continental to deep-water marine paleoenvironments.

Shideler, G.L.

1985-01-01T23:59:59.000Z

200

Impact of flood defences and sea-level rise on the European Shelf tidal regime  

Science Journals Connector (OSTI)

Abstract The tidal response of the European Shelf to moderate ( < 1 m ) levels of sea level rise is investigated using a high resolution, well established tidal model. The model is validated for present day conditions and the tidal response to sea level rise by comparing the modelled response to long term tide gauge data. The effects of coastal defence schemes are tested, with three levels of present day coastal defences simulated. Full walls are added at the present day coastline, no coast defence schemes are used and a set of present day coastal defence schemes is simulated. The simulations show that there is a significant tidal response to moderate levels of SLR and that the response is strongly dependant on level of coastal defence simulated. The simulation using coastal defence data resulted in the strongest response as the tide was able to build up behind the coastal defence walls and create a patchwork of sea and land at the coastline. This had a strong impact on the spatial tidal energy dissipation field and in turn this has large effects on the tidal regime throughout the domain.

Holly E. Pelling; J.A. Mattias Green

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

The impacts of the great Mississippi/Atchafalaya River flood on the oceanography of the Atchafalaya Shelf  

Science Journals Connector (OSTI)

Abstract Rivers are the primary means by which water, sediment, and dissolved material are transported from the continents to the ocean. Despite previous advances, much remains to be learned about the dynamics of large shelf-discharging rivers, and their functional differences with deep water-discharging rivers, particularly with respect to the distribution of sediments in the coastal zone. The great Mississippi/Atchafalaya River flood of 2011 provided an excellent opportunity to examine the impacts of a large, shelf-discharging river on the coastal ocean, and the role that event pulses from such rivers play in the delivery of sediment to the inner continental shelf. Vessel-based surveys were conducted on the inner-continental shelf within the Atchafalaya and Mississippi River plume regions, providing in situ measurements of salinity, temperature, dissolved oxygen, turbidity, particle size, and current velocity profiles. MODIS satellite images and 7Be measurements were used to assist in data interpretation. We demonstrate that the Atchafalaya River plume produced intense vertical gradients in temperature, salinity, oxygen and turbidity. This occurred despite the shallow bathymetry of this system and the presence of winds, which alternated between onshore to offshore, and that might have otherwise mixed systems with less freshwater. Sedimentation rates along the inner-continental shelf were about 510 times greater than those measured previously during smaller typical floods. This large deposit is likely to be preserved, at least in the near term, because sedimentation occurred beyond normal depths of wave reworking and the intense stratification induced by this flood likely reduced mixing at the time of sedimentation. A sediment budget for this system reveals that sediment fluxes to the coastal zone during 2011 were similar to those observed in previous years, suggesting that this system is supply limited, rather than transport limited. As such, we postulate that the major impact of this flood was to change the location of the depocenter of Atchafalaya River sediments, rather than increase the annual flux of sediments to the coastal zone. These findings imply that extreme flood events may not be an ideal analog for coastal restoration along this deltaic coast.

Alexander S. Kolker; Chunyan Li; Nan D. Walker; Chet Pilley; Alexander D. Ameen; Georgia Boxer; Cyndhia Ramatchandirane; Mohammad Ullah; Kelly A. Williams

2014-01-01T23:59:59.000Z

202

Geological characterization and statistical comparison of outcrop and subsurface facies: Shannon shelf sand ridges: Topical report  

SciTech Connect

The primary objective of this research is to develop a methodology for constructing accurate quantitative models of reservoir heterogeneities. The resulting models are expected to improve predictions of flow patterns, spatial distribution of residual oil after secondary and tertiary recovery operations, and ultimate oil recovery. The purpose of this study is to provide preliminary evaluation of the usefulness of outcrop information in characterizing analogous reservoirs and to develop research techniques necessary for model development. The Shannon Sandstone, a shelf sand ridge deposit in the Powder River Basin, Wyoming, was studied. Sedimentologic and petrophysical features of an outcrop exposure of the High-Energy Ridge-Margin facies (HERM) within the Shannon were compared with those from a Shannon sandstone reservoir in Teapot Dome field. Comparisons of outcrop and subsurface permeability and porosity histograms, cumulative distribution functions, correlation lengths and natural logarithm of permeability versus porosity plots indicate a strong similarity between Shannon outcrop and Teapot Dome HERM facies petrophysical properties. Permeability classes found in outcrop samples can be related to crossbedded zones and shaley, rippled, and bioturbated zones. Similar permeability classes related to similar sedimentologic features were found in Teapot Dome field. The similarities of outcrop and Teapot Dome petrophysical properties, which are from the same geologic facies but from different depositional episodes, suggest that rocks deposited under similar depositional processes within a given deposystem have similar reservoir properties. The results of the study indicate that the use of quantitative outcrop information in characterizing reservoirs may provide a significant improvement in reservoir characterization. 17 refs., 5 tabs.

Jackson, S.; Szpakiewicz, M.; Tomutsa, L.

1987-09-01T23:59:59.000Z

203

Applying the basin model: Assessing habitat suitability of young-of-the-year demersal fishes on the New York Bight continental shelf  

Science Journals Connector (OSTI)

The extent to which young-of-the-year (YOY) fish habitats become saturated with new recruits has remained relatively unevaluated for temperate, demersal, continental shelf fishes. MacCall's [1990. Dynamic Geography of Marine Fish Populations. Washington Sea Grant Program, University of Washington Press, Seattle, Washington] basin model was used as a framework for examining the dynamics of an assemblage of recently settled fishes in relation to available microhabitat on the New York Bight continental shelf (USA). For four abundant species (three flatfish, one merlucciid hake), density-specific patterns of microhabitat selection, spatial dispersion and overall cross-shelf habitat use were investigated using a research submersible over three cross-shelf transects during the late summer settlement season. Typically, recruits that saturated YOY habitats (>1ind/m2) were randomly distributed within underwater transects and formed weak associations with specific microhabitats. At lower densities (<1ind/m2), recruit spacing tended toward nonrandom (clumped/even) with increasing significant affinities for ecologically important substrates (i.e. Limanda ferruginea, sand wave crests/low shell hash). For Citharichthys arctifrons, clumping appeared to increase with complexity of the habitat. Several less-abundant species (i.e. Urophycis chuss, Tautogolabrus adspersus) formed tight associations with rare habitat features and may consequently encounter the greatest bottleneck for space during the benthic/pelagic transition. Although restricted by the scale of observation, these results begin to elucidate the mechanisms by which habitat quality and quantity moderate recruitment on the continental shelf.

Mark C. Sullivan; Robert K. Cowen; Kenneth W. Able; Michael P. Fahay

2006-01-01T23:59:59.000Z

204

Method for extending the useful shelf-life of refrigerated red blood cells by flushing with inert gas  

DOE Patents (OSTI)

Method using oxygen removal for extending the useful shelf-life of refrigerated red blood cells. A cost-effective, 4.degree. C. storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. Preservation of adenosine triphosphate levels and reduction in hemolysis and in membrane vesicle production of red blood cells stored at 4.degree. C. for prolonged periods of time is achieved by removing oxygen therefrom at the time of storage; in particular, by flushing with an inert gas. Adenosine triphosphate levels of the stored red blood cells are boosted in some samples by addition of ammonium phosphate.

Bitensky, Mark W. (Los Alamos, NM); Yoshida, Tatsuro (Los Alamos, NM)

1997-01-01T23:59:59.000Z

205

Method for extending the useful shelf-life of refrigerated red blood cells by flushing with inert gas  

DOE Patents (OSTI)

A method is disclosed using oxygen removal for extending the useful shelf-life of refrigerated red blood cells. A cost-effective, 4 C storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. Preservation of adenosine triphosphate levels and reduction in hemolysis and in membrane vesicle production of red blood cells stored at 4 C for prolonged periods of time is achieved by removing oxygen from the red blood cells at the time of storage; in particular, by flushing with an inert gas. Adenosine triphosphate levels of the stored red blood cells are boosted in some samples by addition of ammonium phosphate. 4 figs.

Bitensky, M.W.; Yoshida, Tatsuro

1997-04-29T23:59:59.000Z

206

Continental shelf processes affecting the oceanography of the South Atlantic Bight. Progress report, June 1, 1979-May 31, 1980  

SciTech Connect

Progress is reported on research conducted from June, 1979 to May, 1980 on various oceanographic aspects of the South Atlantic Bight. Research topics included: (1) A flashing model of Onslow Bay, North Carolina based on intrusion volumes; (2) A description of a bottom intrusion in Onslow Bay, North Carolina; (3) Detailed observations of a Gulf Stream spin-off eddy on the Georgia continental shelf; (4) Pelagic tar of Georgia and Florida; (5) A surface diaton bloom in response to eddy-forced upwelling; and (6) Hydrographic observations off Savannah and Brunswick, Georgia.

Atkinson, L P

1980-02-29T23:59:59.000Z

207

Cross-Shelf Transport at Huntington Beach. Implications for the Fate of Sewage Discharged through an Offshore Ocean Outfall  

Science Journals Connector (OSTI)

Station P, also located in 61 m of water, was equipped with mini temperature recorders (Hugrun Seamon, Reykjavik, Iceland) at 15, 30, and 48 m, and doppler current sensors with temperature sensors (Aanderaa Instruments, model 3500, Nesttun, Norway) at 1 and 45 m. ... In areas of active upwelling, the cross-shelf circulation forced by equatorward wind is understood to bring cold subthermocline water to the surface. ... Comparing the preceding offshore and nearshore temperature records, fluctuations at both diurnal and semi-diurnal frequencies are observed at both stations though the ratio of diurnal to semi-diurnal energy is observed to be greater in the nearshore. ...

Alexandria B. Boehm; Brett F. Sanders; Clinton D. Winant

2002-04-02T23:59:59.000Z

208

215 Euston Road London NW1 2BE UK T +44 (0)20 7611 8888 F +44 (0)20 7611 8545 E contact@wellcome.ac.uk  

E-Print Network (OSTI)

fossil fuels leads to almost $120 billion in health costs per year. Most of those costs are premature consequences too. Relying on fossil fuels leads to unhealthy lifestyles, increases our chances of getting sick Euston Road, London NW1 2BE, UK. Health benefits of reducing greenhouse gas emissions Kathleen Sebelius

Rambaut, Andrew

209

Lithostratigraphy and environmental considerations of Cenomanian-Early Turonian shelf carbonates (Rumaila and Mishrif Formations) of Mesopotamian basin, middle and southern Iraq  

SciTech Connect

Rumaila and Mishrif Formations form the major part of the Cenomanian early Turonian deposits of middle and southern Iraq. The Rumaila Formation consists of lithographic chalky limestone at the lower part and marly limestone and marl at the upper part. The formation represents deep off-shelf deposits, whereas the overlying Mishrif Formation is composed of various types of shallow-shelf carbonates such as rudist-bearing patchy reefs and lagoonal and off-shelf limestones. An environmental model is suggested to delineate the stratigraphic relationships between the above mentioned two formations and to correlate them with their equivalents in central Iraq (i.e., Mahilban, Fahad, and Maotsi Formations). The gradational contact between the two formations and the intertonguing with their equivalents are considered to be the most important stratigraphic phenomena.

Sherwani, G.H.M.; Aqrawi, A.A.M.

1987-05-01T23:59:59.000Z

210

Model for deposition of bedded halite in a shallow shelf setting, San Andres Formation, Palo Duro Basin, Texas panhandle  

SciTech Connect

Existing depositional models for evaporites do not adequately describe facies relationships, halite fabrics, and trace element geochemistry of halite from the Permian San Andres Formation. Interbedding of anhydritic halite and mudstone with disrupted bedding records alternation between marine-dominated brine pool and subaerial environments. Chevron structures and hopper crystal cumulates in the halite indicate subaqueous deposition. Abundant anhydrite partings within halite, which thicken and become interbedded with marine shelf carbonates to the south, demonstrate the facies equivalence and physical connection of evaporite and marine environments. Maintenance of marine character in trace element profiles through halite sequences documents the episodic influx of marine water. Haloturbated structure in mudstone interbeds within the halite is produced by displacive growth of halite within mudstone and dissolution and collapse of this halite as ground-water chemistry fluctuates in response to conditions of alternating desiccation and wetting. Karst features cutting the halite also imply subaerial exposure. Mapping of the fine-scale sedimentary structures, geochemical signature, and insoluble component mineralogy of halite sequences indicates that the brine pool environment extended over areas in excess of 100 km/sup 2/. Sabkha, salina, playa, and deep water basin models of halite-precipitating environments do not satisfactorily describe the shallow marine shelf depositional environment of the San Andres halite.

Hovorka, S.D.

1985-01-01T23:59:59.000Z

211

Modeling variability in {sup 210}Pb and sediment fluxes near the Whites Point Outfalls, Palos Verdes Shelf, California  

SciTech Connect

Many researchers have had difficulty interpreting sediment data collected from the Palos Verdes Shelf, southern California. Factors that have been difficult to reconcile include the distribution of {sup 210}Pb and metals, the depth and extent of bioturbation, and the rate of sedimentation. This paper presents a simple model that includes these elements and simulates the flux of {sup 210}Pb, sediment, and metals to the sea floor near the Whites Point wastewater outfalls. The model uses known particle and metals emission rates from the outfalls and {sup 210}Pb fluxes to the sediments that vary in proportion to the flux of sediment mass to the sea floor. Model-predicted metals and {sup 210}Pb concentration profiles in the sediments agree well with data from cores collected at three locations on the Palos Verdes Shelf between 1972 and 1997. The implication of the model results is that {sup 210}Pb fluxes to the sediments in this area have varied greatly over the past 60 years. The model suggests that subsurface {sup 210}Pb maxima and uniform {sup 210}Pb concentrations to depths within the sediments of roughly 30 cm have resulted from time-variable {sup 210}Pb fluxes to the sediments and relatively shallow bioturbation and that natural sedimentation rates are relatively high.

Paulsen, S.C.; List, E.J. [Flow Science Inc., Pasadena, CA (United States)] [Flow Science Inc., Pasadena, CA (United States); Santschi, P.H. [Texas A and M Univ., Galveston, TX (United States). Dept. of Oceanography] [Texas A and M Univ., Galveston, TX (United States). Dept. of Oceanography

1999-09-15T23:59:59.000Z

212

Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II  

SciTech Connect

The principle objective of this project is to demonstrate the economic viability and widespread applicability of an innovative reservoir management and carbon dioxide (CO2) flood project development approach for improving CO2 flood project economics in shallow shelf carbonate (SSC) reservoirs.

Czirr, K.L.; Gaddis, M.P.; Moshell, M.K.

2002-02-21T23:59:59.000Z

213

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SANANDRES RESERVOIR  

SciTech Connect

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; (7) Mobility control agents.

Unknown

2003-01-15T23:59:59.000Z

214

Canada-USA Salmon Shelf Survival Study, 2007-2008 Annual Report.  

SciTech Connect

Historically, salmon stocks from the Columbia River and Snake River formed one of the most valuable fisheries on the west coast of North America. However, salmon and steelhead returns sharply declined during the 1980s and 1990s to reach nearly 1 million fish. Although several factors may be responsible for the decline of Columbia River salmon and steelhead, there is increasing evidence that these drastic declines were primarily attributable to persistently unfavorable ocean conditions. Hence, an understanding of the effects of ocean conditions on salmon production is required to forecast the return of salmon to the Columbia River basin and to assess the efficacy of mitigation measures such as flow regulation on salmon resources in this system. The Canadian Program on High Seas Salmon has been collecting juvenile salmon and oceanographic data off the west coast of British Columbia and Southeast Alaska since 1998 to assess the effects of ocean conditions on the distribution, migration, growth, and survival of Pacific salmon. Here, we present a summary of the work conducted as part of the Canada-USA Salmon Shelf Survival Study during the 2008 fiscal year and compare these results with those obtained from previous years. The working hypothesis of this research is that fast growth enhances the marine survival of salmon, either because fast growing fish quickly reach a size that is sufficient to successfully avoid predators, or because they accumulate enough energy reserves to better survive their first winter at sea, a period generally considered critical in the life cycle of salmon. Sea surface temperature decreased from FY05 to FY08, whereas, the summer biomass of phytoplankton increased steadily off the west coast of Vancouver Island from FY05 to FY08. As in FY07, zooplankton biomass was generally above average off the west coast of Vancouver Island in FY08. Interestingly, phytoplankton and zooplankton biomass were higher in FY08 than was expected from the observed nutrient concentration that year. This suggests nutrients were more effectively by phytoplankton in FY08. In addition, the abundance of lipid-rich northern copepods increased from FY05 to FY08, whereas lipid-poor southern copepods showed the opposite pattern, suggesting that growth conditions were more favorable to juvenile salmon in FY08 than in previous years. However, growth indices for juvenile coho salmon were near the 1998-2008 average, both off the west coast of Vancouver Island and Southeast Alaska, indicating that additional factors beside prey quality affect juvenile salmon growth in the marine environment. Catches of juvenile Chinook, sockeye and chum salmon off the west coast of Vancouver Island in June-July 2008 were the highest on record during summer since 1998, suggesting that early marine survival for the 2008 smolt year was high. Interestingly, the proportion of hatchery fish was high (80-100%) among the juvenile Columbia River Chinook salmon caught off the British Columbia coast during summer, suggest that relatively few wild Chinook salmon are produced in the Columbia River Chinook. In addition, we also recovered two coded-wire tagged juvenile Redfish Lake sockeye salmon in June 2008 off the west coast of British Columbia. As relatively few Redfish Lake sockeye smolts are tagged each year, this also suggests that early marine survival was high for these fish, and may result in a high return in 2009 if they mature at age three, or in 2010 if they mature at age four. To date, our research shows that different populations of Columbia River salmon move to different locations along the coastal zone where they establish their ocean feeding grounds and overwinter. We further show that ocean conditions experienced by juvenile Columbia River salmon vary among regions of the coast, with higher plankton productivity and temperatures off the west coast of Vancouver Island than in Southeast Alaska. Hence, different stocks of juvenile salmon originating from the Columbia River and Snake River are exposed to different ocean conditions and may respond differ

Trudel, Marc; Tucker, Strahan; Morris, John

2009-03-09T23:59:59.000Z

215

Peridotite and pyroxenite xenoliths from Tarim, NW China: Evidences for melt depletion and mantle refertilization in the mantle source region of the Tarim flood basalt  

Science Journals Connector (OSTI)

Abstract Mantle-derived spinel peridotite and spinel plagioclase pyroxenite xenoliths hosted in Cenozoic alkali basalts (20Ma) are found in the Xikeer area, western Tarim Block, NW China. Based on petrographic and geochemical characteristics, the peridotite xenoliths are divided into three groups. Group 1 peridotite xenoliths have experienced high degree melt extraction (~17% fractional melting) and weak, incipient metasomatism. Group 2 and 3 peridotite xenoliths have undergone extensive silicate melt metasomatism, resulting in clinopyroxenes with spoon-shaped and highly fractionated REE patterns respectively. Although their present texture is metamorphic, the pyroxenite xenoliths were initially of metasomatic origin, with high pressure protolith mineral assemblage of orthopyroxene+clinopyroxene+spinelolivine. Numerical modeling of the Mg-number shows that the Xikeer pyroxenites may have resulted from reaction between Group 1 peridotite and a primitive Permian picritic melt at a high melt/rock ratio (>15) and that the host basanite is incapable of being the metasomatic melt. The ReOs isotopic systematics of the Xikeer peridotites and pyroxenites yield an apparent isochron of ~290Ma, virtually identical to the age of Tarim flood basalts. Their ?Nd(t=290Ma) ranges from +9.5 to +14.3, typical of convecting mantle. We propose that the Xikeer xenolith suite may have been initially formed by melt extraction from the convecting mantle and, shortly after, was refertilized by Tarim mantle plume melts during the Early Permian, a process which is referred to as mantle auto-refertilization.

Mi-Mi Chen; Wei Tian; Katsuhiko Suzuki; M.-L.-G. Tejada; Feng-Lin Liu; Ryoko Senda; Chun-Jing Wei; Bin Chen; Zhu-Yin Chu

2014-01-01T23:59:59.000Z

216

CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. Topical report No. 1  

SciTech Connect

The principle objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process coupled with the CVU reservoir characterization components will determine if this process is technically and economic for field implementation. The ultimate goal will be to develop guidelines based on commonly available data that other operators in the industry can use to investigate the applicability of the process within other field. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy`s objective to increasing domestic oil production and deferring the abandonment of shallow shelf carbonate reservoirs. Accomplishments to date are described in this report.

Cole, R.; Prieditis, J.; Vogt, J.; Wehner, S.

1995-10-01T23:59:59.000Z

217

CO{sub 2} HUFF-n-PUFF process in a light oil shallow shelf carbonate reservoir. Quarterly technical progress report, [January 1, 1995--March 31, 1995  

SciTech Connect

The principal objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process, coupled with the CVU reservoir characterization components will determine if this process is technically and economically feasible for field implementation. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy`s (DOE) objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate (SSC) reservoirs. Technical progress is reported for geostatitical realizations; paramatric simulation; waterflood review; and reservoir characterization.

Cole, R.; Prieditis, J.; Vogt, J.; Wehner, S.

1995-04-21T23:59:59.000Z

218

CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. Second quarterly technical progress report, [April 1995--June 1995  

SciTech Connect

The principal objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process, coupled with the CVU reservoir characterization components will determine if this process is technically and economically feasible for field implementation. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy`s (DOE) objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate (SSC) reservoirs. Tasks associated with this objective are carried out in what is considered a timely effort for near-term goals. Technical progress is summarized for; geostatistical realizations; site-specific simulation;waterflood review; and reservoir characterization.

Cole, R.; Prieditis, J.; Vogt, J.; Wehner, S.

1995-07-11T23:59:59.000Z

219

CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. Quarterly technical progress report, July--September, 1995  

SciTech Connect

The principal objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process, coupled with the CVU reservoir characterization components will determine if this process is technically and economically feasible for field implementation. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy`s (DOE) objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate (SSC) reservoirs. Tasks associated with this objective are carried out in what is considered a timely effort for near-term goals.

Cole, R.; Prieditis, J.; Vogt, J. Wehner, S.

1995-10-15T23:59:59.000Z

220

Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion  

SciTech Connect

The first project objective is to utilize reservoir characterization and advanced technologies to optimize the design of a carbon dioxide (CO2) project for the South Cowden Unit (SCU) located in Ector County, Texas. The SCU is a mature, relatively small, shallow shelf carbonate unit nearing waterflood depletion. The second project objective is to demonstrate the performance and economic viability of the project in the field. All work during the second quarter falls within the demonstration project.

Czirr, Kirk

1999-10-28T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

Design and implementation of a CO{sub 2} flood utilizing advanced reservoir characterization and horizontal injection wells in a shallow shelf carbonate approaching waterflood depletion  

SciTech Connect

The first objective is to utilize reservoir characterization and advanced technologies to optimize the design of a carbon dioxide (CO{sub 2}) project for the South Cowden Unit (SCU) located in Ector County, Texas. The SCU is a mature, relatively small, shallow shelf carbonate unit nearing, waterflood depletion. The second objective is to demonstrate the performance and economic viability of the project in the field. This report includes work on the reservoir characterization and project design objective and the demonstration project objective.

NONE

1996-08-09T23:59:59.000Z

222

Bromine enrichment in marsh sediments as a marker of environmental changes driven by Grand Solar Minima and anthropogenic activity (Caminha, NW of Portugal)  

Science Journals Connector (OSTI)

Abstract A sediment core collected in Caminha tidal marsh, NW Portugal, was used to assess bromine (Br) signal over the last ca. 1700years. The Br temporal variability reflects its close relationship with soil/sediment organic matter (OM) and also alterations in Br biogeochemical recycling in marsh environment. The highest Br enrichment in sediments was found during the Maunder Solar Minimum, a major solar event characterized by lower irradiance (TSI) and temperature, increased cloudiness and albedo. The obtained results suggest that those climate-induced changes weakened the natural mechanisms that promote Br biochemical transformations, driven by both living plants metabolism and plant litter degradation, with the ensuing generation of volatile methyl bromide (CH3Br). It seems that the prevailing climate conditions during the Maunder favoured the retention of more Br in marsh ecosystem, ultimately decreasing the biogenic Br emissions to the atmosphere. During the 20th century, the Br pattern in sediments appears to mirror likewise anthropogenic sources. The significant correlation (p<0.05) between Br/OM ratios and Pb contents in sediments after 1934 suggests a common source. This is most probably related with the rise, massive consumption and prohibition of leaded gasoline, where ethylene dibromide was added as lead scavenger to antiknock mixtures. More regionally, the concerted use of flame retardants on forest fire management, covering the 1980s through mid-1990s in the north of Portugal and Galicia, could be responsible for the observed increase of sediment Br (relatively to Pb) pool of this tidal marsh. Although man-made brominated compounds are being phased-out since the inception of the 1992 Montreal Protocol, the Caminha tidal marsh sedimentary record showed that Br levels only started to decline after 2002.

J. Moreno; F. Fatela; E. Leorri; M.F. Arajo; F. Moreno; J. De la Rosa; M.C. Freitas; T. Valente; D.R. Corbett

2015-01-01T23:59:59.000Z

223

CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir  

SciTech Connect

The application of cyclic CO{sub 2}, often referred to as the CO{sub 2} Huff-n-Puff process, may find its niche in the maturing waterfloods of the Permian Basin. Coupling the CO{sub 2} H-n-P process to miscible flooding applications could provide the needed revenue to sufficiently mitigate near-term negative cash flow concerns in the capital intensive miscible projects. Texaco Exploration and Production Inc. and the US Department of Energy have teamed up in an attempt to develop the CO{sub 2} Huff-n-Puff process in the Grayburg and San Andres formations, a light oil, shallow shelf carbonate reservoir that exists throughout the Permian Basin. This cost-shared effort is intended to demonstrate the viability of this underutilized technology in a specific class of domestic reservoir. The selected site for this demonstration project is the Central Vacuum Unit waterflood in Lea County, New Mexico. The goals of the project are the development of guidelines for cost-effective selection of candidate reservoirs and wells, along with estimating recovery potential. This project has two defined budget periods. The first budget period primarily involves tasks associated with reservoir analysis and characterization, characterizing existing producibility problems, and reservoir simulation of the proposed technology. The final budget period covers the actual field demonstration of the proposed technology. Technology transfer spans the entire course of the project. This report covers the concluding tasks performed under the second budget period.

NONE

1998-06-01T23:59:59.000Z

224

Observations of sound-speed fluctuations on the New Jersey continental shelf in the summer of 2006  

Science Journals Connector (OSTI)

Environmental sensors moored on the New Jersey continental shelf tracked constant density surfaces (isopycnals) for 35 days in the summer of 2006. Sound-speed fluctuations from internal-wave vertical isopycnal displacements and from temperature/salinity variability along isopycnals (spiciness) are analyzed using frequency spectra and vertical covariance functions. Three varieties of internal waves are studied: Diffuse broadband internal waves (akin to waves fitting the deep water Garrett/Munk spectrum) internal tides and to a lesser extent nonlinear internal waves. These internal-wave contributions are approximately distinct in the frequency domain. It is found that in the main thermocline spicy thermohaline structure dominates the root mean square sound-speed variability with smaller contributions coming from (in order) nonlinear internal waves diffuse internal waves and internal tides. The frequency spectra of internal-wave displacements and of spiciness have similar form likely due to the advection of variable-spiciness water masses by horizontal internal-wave currents although there are technical limitations to the observations at high frequency. In the low-frequency internal-wave band the internal-wave spectrum follows frequency to the ?1.81 power whereas the spice spectrum shows a ?1.73 power. Mode spectra estimated via covariance methods show that the diffuse internal-wave spectrum has a smaller mode bandwidth than Garrett/Munk and that the internal tide has significant energy in modes one through three.

John A. Colosi; Timothy F. Duda; Ying-Tsong Lin; James F. Lynch; Arthur E. Newhall; Bruce D. Cornuelle

2012-01-01T23:59:59.000Z

225

Evaluating the Influence of Pore Architecture and Initial Saturation on Wettability and Relative Permeability in Heterogeneous, Shallow-Shelf Carbonates  

SciTech Connect

Thin (3-40 ft thick), heterogeneous, limestone and dolomite reservoirs, deposited in shallow-shelf environments, represent a significant fraction of the reservoirs in the U.S. midcontinent and worldwide. In Kansas, reservoirs of the Arbuckle, Mississippian, and Lansing-Kansas City formations account for over 73% of the 6.3 BBO cumulative oil produced over the last century. For these reservoirs basic petrophysical properties (e.g., porosity, absolute permeability, capillary pressure, residual oil saturation to waterflood, resistivity, and relative permeability) vary significantly horizontally, vertically, and with scale of measurement. Many of these reservoirs produce from structures of less than 30-60 ft, and being located in the capillary pressure transition zone, exhibit vertically variable initial saturations and relative permeability properties. Rather than being simpler to model because of their small size, these reservoirs challenge characterization and simulation methodology and illustrate issues that are less apparent in larger reservoirs where transition zone effects are minor and most of the reservoir is at saturations near S{sub wirr}. These issues are further augmented by the presence of variable moldic porosity and possible intermediate to mixed wettability and the influence of these on capillary pressure and relative permeability. Understanding how capillary-pressure properties change with rock lithology and, in turn, within transition zones, and how relative permeability and residual oil saturation to waterflood change through the transition zone is critical to successful reservoir management and as advanced waterflood and improved and enhanced recovery methods are planned and implemented. Major aspects of the proposed study involve a series of tasks to measure data to reveal the nature of how wettability and drainage and imbibition oil-water relative permeability change with pore architecture and initial water saturation. Focus is placed on carbonate reservoirs of widely varying moldic pore systems that represent the major of reservoirs in Kansas and are important nationally and worldwide. A goal of the project is to measure wettability, using representative oils from Kansas fields, on a wide range of moldic-porosity lithofacies that are representative of Kansas and midcontinent shallow-shelf carbonate reservoirs. This investigation will discern the relative influence of wetting and pore architecture. In the midcontinent, reservoir water saturations are frequently greater than 'irreducible' because many reservoirs are largely in the capillary transition zone. This can change the imbibition oil-water relative permeability relations. Ignoring wettability and transition-zone relative permeabilities in reservoir modeling can lead to over- and under-prediction of oil recovery and recovery rates, and less effective improved recovery management. A goal of this project is to measure drainage and imbibition oil-water relative permeabilities for a large representative range of lithofacies at differ ent initial water saturations to obtain relations that can be applied everywhere in the reservoir. The practical importance of these relative permeability and wettability models will be demonstrated by using reservoir simulation studies on theoretical/generic and actual reservoir architectures. The project further seeks to evaluate how input of these new models affects reservoir simulation results at varying scales. A principal goal is to obtain data that will allow us to create models that will show how to accurately simulate flow in the shallow-structure, complex carbonate reservoirs that lie in the transition zone. Tasks involved to meet the project objectives include collection and consolidation of available data into a publicly accessible relational digital database and collection of oil and rock samples from carbonate fields around the state (Task 1). Basic properties of these rocks and oils will be measured and used in wettability tests. Comparison will be performed between crude and synthetic oil wettability and

Alan P. Byrnes; Saibal Bhattacharya; John Victorine; Ken Stalder

2007-09-30T23:59:59.000Z

226

CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. 1994 Annual report  

SciTech Connect

It is anticipated that this project will show that the application of the CO{sub 2} Huff-n-Puff process in shallow shelf carbonates can be economically implemented to recover appreciable volumes of light oil. The goals of the project are the development of guidelines for cost-effective selection of candidate reservoirs and wells, along with estimating recovery potential. The selected site for the demonstration project is the Central Vacuum Unit waterflood in Lea County, New Mexico. Work is nearing completion on the reservoir characterization components of the project. The near-term emphasis is to, (1) provide an accurate distribution of original oil-in-place on a waterflood pattern entity level, (2) evaluate past recovery efficiencies, (3) perform parametric simulations, and (4) forecast performance for a site specific field demonstration of the proposed technology. Macro zonation now exists throughout the study area and cross-sections are available. The Oil-Water Contact has been defined. Laboratory capillary pressure data was used to define the initial water saturations within the pay horizon. The reservoir`s porosity distribution has been enhanced with the assistance of geostatistical software. Three-Dimensional kriging created the spatial distributions of porosity at interwell locations. Artificial intelligence software was utilized to relate core permeability to core porosity, which in turn was applied to the 3-D geostatistical porosity gridding. An Equation-of-State has been developed and refined for upcoming compositional simulation exercises. Options for local grid-refinement in the model are under consideration. These tasks will be completed by mid-1995, prior to initiating the field demonstrations in the second budget period.

Wehner, S.C.

1995-05-01T23:59:59.000Z

227

Depositional setting and sandstone diagenesis of the Upper Pennsylvanian (Missourian) Hepler Formation, Cherokee Shelf of the midcontinent  

SciTech Connect

The Hepler Formation marks the base of the Pleasanton Group which is recognized as the base of the Upper Pennsylvanian in southeastern Kansas. This formation consists of interstratified units of shales, siltstones, and sandstones, as well as a localized coal bed. These lithologies are interpreted as having formed in a prograting, fluvially-dominated deltaic sequence that was deposited as the Late Pennsylvanian sea temporarily withdrew from the Cherokee shelf. Hepler sandstone bodies in the study area are predominantly quartz arenites and sublitharenites. The diagenetic history of the Hepler consisted of alternating periods of authigenic mineral precipitation and dissolution of both detrital grains and cements. Petrographic observations indicate that silica cementation, in the form of quartz overgrowths, took place early in the paragenetic sequence. Changes in the meteoric water chemistry, resulted in partial quartz and feldspar dissolution, and alteration of feldspars to clays. Precipitation of carbonate into dissolution features was initiated by acidic surface waters (fluvial) followed by a sea level rise allowing carbonate-saturated marine waters to flush these sediments. Further burial and compaction destroyed much of remaining porosity and left concavo-convex contacts and sutured quartz grains. This was followed by anoxic conditions which allowed pyrite crystallization to take place. A subsequent fall in sea level exposed Hepler deposits once again to meteoric, low pH waters, resulting in carbonate dissolution. All observed porosity is secondary, formed by carbonate dissolution. Surface samples were subjected to weathering of iron-bearing components to iron-oxide, a product not observable in subsurface core samples.

Gilmer, M.H.; Brenner, R.L. (Univ. of Iowa, Iowa City, IA (United States). Dept. of Geology)

1992-01-01T23:59:59.000Z

228

Outer Continental Shelf Production  

U.S. Energy Information Administration (EIA) Indexed Site

Reference case projections. 3 The complete AEO2014, which was released in May, includes alternative assumptions regarding resources, technology advances, and world energy prices...

229

CO2 Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. Annual report, January 1, 1995--December 31, 1995  

SciTech Connect

The application of cyclic CO{sub 2}, often referred to as the CO{sub 2} Huff-n-Puff process, may find its niche in the maturing waterfloods of the Permian Basin. Coupling the CO{sub 2} H-n-P process to miscible flooding applications could provide the needed revenue to sufficiently mitigate near-term negative cash flow concerns in the capital intensive miscible projects. Texaco Exploration & Production Inc. and the U.S. Department of Energy have teamed up in an attempt to develop the CO{sub 2} Huff-n-Puff process in the Grayburg/San Andres formation; a light oil, shallow shelf carbonate reservoir within the Permian Basin. This cost-shared effort is intended to demonstrate the viability of this underutilized technology in a specific class of domestic reservoir. A significant amount of oil reserves are located in carbonate reservoirs. Specifically, the carbonates deposited in shallow shelf (SSC) environments make up the largest percentage of known reservoirs within the Permian Basin of North America. Many of these known resources have been under waterflooding operations for decades and are at risk of abandonment if crude oil recoveries cannot be economically enhanced. The selected site for this demonstration project is the Central Vacuum Unit waterflood in Lea County, New Mexico.

Wehner, S.C.; Boomer, R.J.; Cole, R.; Preiditus, J.; Vogt, J.

1996-09-01T23:59:59.000Z

230

Distribution of marine birds on the mid- and North-Atlantic US outer continental shelf. Technical progress report, January 1978-July 1980  

SciTech Connect

The species composition, distribution, and abundance of marine birds on continental shelf waters from Cape Hatteras to the Bay of Fundy were examined using ships-of-opportunity. Northern Fulmar, Cory's Shearwater, Greater Shearwater, Sooty Shearwater, Wilson's Storm-Petrel, Gannet, Red Phalarope, Great Black-backed Gull, Herring Gull, and Black-legged Kittiwake were the most abundant and common species. These species were ecologically dominant within the bird community in numbers and biomass. Georges Bank and Gulf of Marine regions generally had greatest estimates of standing stock and biomass; whereas, in the Middle Atlantic region these estimates were consistently lowest. Species diversity throughout the study area was greatest in spring and least in fall. Oceanic fronts at the continental shelf break and at Nantucket Shoals influenced the distribution of Wilson's Storm-Petrels and Red Phalaropes. Fishing activities were particularly important to Larus gull distribution. Fishes, squids, and crustaceans were the most important groups of prey items in diets of nine bird species. An oiled bird or pollution index was developed. According to the index, frequency of oiled birds was greatest in winter and spring, and gulls made up the majority of species with oiled plumages.

Powers, K.D.; Pittman, G.L.; Fitch, S.J.

1980-09-01T23:59:59.000Z

231

Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques  

SciTech Connect

The primary objective of this project was to enhance domestic petroleum production by demonstration and transfer of horizontal drilling technology in the Paradox basin, Utah, Colorado, Arizona, and New Mexico. If this project can demonstrate technical and economic feasibility, then the technique can be applied to approximately 100 additional small fields in the Paradox basin alone, and result in increased recovery of 25 to 50 million barrels (40-80 million m3) of oil. This project was designed to characterize several shallow-shelf carbonate reservoirs in the Pennsylvania (Desmoinesian) Paradox Formation, choose the best candidate(s) for a pilot demonstration project to drill horizontally from existing vertical wells, monitor well performances, and report associated validation activities.

Chidsey, Thomas C. Jr.; Eby, David E.; Wray, Laura L.

2001-04-19T23:59:59.000Z

232

Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques  

SciTech Connect

The project's primary objective was to enhance domestic petroleum production by demonstration and transfer of horizontal drilling technology in the Paradox Basin, Utah, Colorado, Arizona, and New Mexico. If this project can demonstrate technical and economic feasibility, then the technique can be applied to approximately 100 additional small fields in the Paradox Basin alone, and result in increased recovery of 25 to 50 million barrels (4-8 million m3) of oil. This project was designed to characterize several shallow-shelf carbonate reservoirs in the Pennsylvanian (Desmoinesian) Paradox Formation, choose the best candidate(s) for a pilot demonstration project to drill horizontally from existing vertical wells, monitor well performance(s), and report associated validation activities.

Chidsey, Jr., Thomas C.; Eby, David E.; Wray, Laural L.

2001-11-26T23:59:59.000Z

233

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

SciTech Connect

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

T. Scott Hickman; James J. Justice

2001-06-16T23:59:59.000Z

234

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

SciTech Connect

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

T. Scott Hickman; James J. Justice

2001-08-10T23:59:59.000Z

235

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

SciTech Connect

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

Raj Kumar; Keith Brown; T. Scott Hickman; James J. Justice

2000-04-27T23:59:59.000Z

236

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

SciTech Connect

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

T. Scott Hickman; James J. Justice

2001-12-11T23:59:59.000Z

237

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

SciTech Connect

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

T. Scott Hickman

2003-01-17T23:59:59.000Z

238

Outer Continental Shelf oil and gas activities in the Gulf of Alaska (including Lower Cook Inlt) and their onshore impacts: a summary report, September 1980  

SciTech Connect

The search for oil and gas on the Outer Continental Shelf (OCS) in the Gulf of Alaska subregion of the Alaska leasing region began in 1967, when geophysical surveys of the area were initiated. Two lease sales have been held in the subregion. Lease Sale 39, for the Northern Gulf of Alaska, was held on April 13, 1976, and resulted in the leasing of 76 tracts. Lease Sale CI, for Lower Cook Inlet, was held on October 27, 1977, and resulted in the leasing of 87 tracts. Exploratory drilling on the tracts leased in Sale 39 began in September 1976, and exploratory drilling on tracts leased in Sale CI began in July 1978. Commercial amounts of hydrocarbons have not been found in any of the wells drilled in either sale area. Seventy-four of the leases issued in the Northern Gulf of Alaska have been relinquished. As of June 1980, exploratory drilling in both areas had ceased, and none was planned for the near future. The next lease sale in the Gulf of Alaska, Sale 55, is scheduled for October 1980. Lease Sale 60 (Lower Cook Inlet and Shelikof Strait) is scheduled for September 1981, and Lease Sale 61 (OCS off Kodiak Island) is scheduled for April 1983. Sale 60 will be coordinated with a State lease sale in adjacent State-owned waters. The most recent estimates (June 1980) by the US Geological Survey of risked, economically recoverable resources for the 2 tracts currently under lease in the Northern Gulf of Alaska are negligible. For the 87 tracts currently under lease in Lower Cook Inlet, the USGS has produced risked, economically recoverable resource estimates of 35 million barrels of oil and 26 billion cubic feet of gas. These resource estimates for the leased tracts in both areas are short of commercially producible amounts. Onshore impacts from OCS exploration have been minimal. Two communities - Yakutat and Seward - served as support bases for the Northern Gulf of Alaska.

Jackson, J.B.; Dorrier, R.T.

1980-01-01T23:59:59.000Z

239

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SAN ANDRES RESERVOIR  

SciTech Connect

The OXY-operated Class 2 Project at West Welch is designed to demonstrate how the use of advanced technology can improve the economics of miscible CO{sub 2} injection projects in lower quality Shallow Shelf Carbonate reservoirs. The research and design phase (Budget Period 1) primarily involved advanced reservoir characterization. The current demonstration phase (Budget Period 2) is the implementation of the reservoir management plan for an optimum miscible CO{sub 2} flood design based on the reservoir characterization. Although Budget Period 1 for the Project officially ended 12/31/96, reservoir characterization and simulation work continued during the Budget Period 2. During the fifth and sixth annual reporting periods (8/3/98-8/2/00) covered by this report, work continued on interpretation of the cross well seismic data to create porosity and permeability profiles which were distributed into the reservoir geostatistically. The initial interwell seismic CO{sub 2} monitor survey was conducted, the acquired data processed and interpretation started. Only limited well work and facility construction was conducted in the project area. The CO{sub 2} injection initiated in October 1997 was continued, although the operator had to modify the operating plan in response to low injection rates, well performance and changes in CO{sub 2} supply. CO{sub 2} injection was focused in a smaller area to increase the reservoir processing rate. By the end of the reporting period three producers had shown sustained oil rate increases and ten wells had experienced gas (CO{sub 2}) breakthrough.

T. Scott Hickman; James J. Justice

2002-01-09T23:59:59.000Z

240

Sea level control on facies architecture of incised valley-fill sequences: case study of Sabine and Trinity valleys, Texas Continental Shelf  

SciTech Connect

The rate of sea level rise likely has varied during the late Wisconsinan-Holocene transgression. The authors are investigating the sea level history of the northwest Gulf of Mexico by examining the sequence stratigraphy of incised valleys on the Texas continental shelf. Glaciologists argue that mass wasting of marine ice sheets can cause rapid and episodic relative sea level (RSL) rises on the order of 5 m/100 years. Such an event would produce a large (/approx/25 km) landward translation of the shoreline on low-gradient shelves like that of north Texas. RSL rise events are expected to be manifested as discontinuities in valley-fill sedimentation and as changes in valley shape. Nearly 1000 km of high-resolution seismic profiles collected in an area extending from Sabine Pass to Galveston and to 60 km offshore were integrated with engineering borings, vibracores, and piston cores; these data allow mapping of incised valleys and valley-fill facies associated with the ancestral Sabine and Trinity rivers. An RSL rise event is characterized by a change from slow rate of rise to rapid and back to slow. The period of rapid rise produces a major flooding surface; bayhead delta development is suppressed, and lower estuarine or marine deposits lie directly on fluvial deposits. Because accommodation increases as rapidly as RSL rises, valley-fill deposition is limited to the original, deeply incised valley. In map view, the valley appears relatively straight and narrow. The valley just offshore Galveston Island represents this situation. During a period of slow rise, bayhead deltas prograde and downlap onto estuarine deposits. In this case, sediments may completely fill the original incised valley, and the river supplying this valley may meander beyond previous valley edges. In map view, such a valley will be broad and irregular in shape, much like modern Galveston Bay.

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

1989-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

Shelf circulation patterns off Nigeria  

E-Print Network (OSTI)

. An oil spill occurred in January of 1998, the slick drifted in the opposite direction at twice the speed as was anticipated. It was believed that the heavy discharge from the Niger River Delta would have a strong influence on the near-shore circulation...

Rider, Kelly Elizabeth

2005-08-29T23:59:59.000Z

242

International reservoir operations agreement helps NW fish &...  

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

or 503-230-5131 International reservoir operations agreement helps Northwest fish and power Portland, Ore. - The Bonneville Power Administration and the British Columbia...

243

NW Aluminum Industry Study (contracts/subscription)  

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

Subscription Contracts Announcements Subscription Strategy Subscription Products Aluminum Study IOUPublic Settlement Slice of the System Billing Procedures Firstgov Northwest...

244

July 17, 2002 New NW research  

E-Print Network (OSTI)

National Laboratory in Richland, Wash.; DOE's Idaho National Engineering and Environmental Laboratory in Idaho Falls, Idaho; and Washington State University and the University of Idaho, both comprehensive land research priorities and help ensure the rapid transfer of scientific discoveries to commercial products

245

701 Ninth Street. N.W.  

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

202-872-3302 Fax 202-872-3302 Fax wmgausman@pepco.com William M. Gausman Senior Vice President Asset Management and Planning July 12, 2010 U.S. Department of Energy Office of the General Counsel 1000 Independence Avenue, SW Room 6A245 Washington, DC 20585 Re: NBP RFI: Communications Requirements Pepco Holdings, Inc. (PHI) is pleased to respond to the U.S Department of Energy request for comments regarding the communications requirements of electric utilities deploying the Smart Grid. PHI is one of the largest energy delivery companies in the Mid-Atlantic region. PHI's three electric distribution companies - Potomac Electric Power Company (Pepco), Delmarva Power (DPL)/ and Atlantic City Electric (ACE) - provide regulated electricity service to about 1.9 million customers in Delaware (DE), the District of Columbia (DC), Maryland (MD) and New Jersey (NJ).

246

Microsoft Word - Amir_cv_NW-13  

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

Contribution Prediction of Vapor Pressure with Statistical Associating Fluid Theory (SAFT), Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT), and Elliott-...

247

Optimization modelling of the impacts of a Severn Barrage for a two-way generation scheme using a Continental Shelf model  

Science Journals Connector (OSTI)

Abstract The Severn Estuary has the world's second largest tide range and a barrage across the estuary, located just seawards of Cardiff in Wales and Weston in the South West England, has been proposed for over half a century, with the objective of extracting large amounts of tidal energy. A Severn Barrage, as previously proposed by the Severn Tidal Power Group (STPG), would be the largest renewable energy project for tidal power generation in the world, if built as proposed, and would generate approximately 5% of the UK's electricity needs. However, concerns have been raised over the environmental impacts of such a barrage, including potential increase in flood risk, loss of intertidal habitats etc. In addressing the challenges of maximizing the energy output and minimizing the environmental impacts of such a barrage, this research study has focused on using a Continental Shelf model, based on the modified Environmental Fluid Dynamics Code (EFDC) with a barrage operation module (EFDC_B), to investigate both the far and near field hydrodynamic impacts of a barrage for different operating scenarios. Three scenarios have been considered to simulate the Severn Barrage, operating via two-way generation and using different combinations of turbines and sluices. The first scenario consisted of 216 turbines and 166 sluices installed along the barrage; the second consisted of 382 turbines with no sluices; and the third consisted of 764 turbines and no sluices. The specification of the sluice gates and turbines are the same for all scenarios. The model results indicate that the third scenario has the best mitigating effects for the far-field and near-field flood risks caused by a barrage and produces the most similar results of minimum water depth and maximum velocity distributions to those obtained from simulating the natural conditions of the estuary, i.e. the current conditions. The results also show that the flow patterns around the barrage are closest to those for the existing natural conditions with minimal slight changes in the estuary. Thus, the results clearly indicate that the environmental impacts of a Severn Barrage can be minimized if the barrage is operated for two-way generation and under the third scenario. Although it appears that the energy output for the third scenario is less than that obtained for the other two scenarios, if very low head (VLH) turbines are used, then the third scenario could generate more energy as more turbines could be cited along the barrage structure. Therefore, the study shows that a Severn Barrage, operating in two-way generation and with 764 turbines (ideally VLH turbines), would be the best option to meet the needs of maximizing the energy output, but having a minimal impact on environmental changes in the estuary and far-field.

Juntao Zhou; Shunqi Pan; Roger A. Falconer

2014-01-01T23:59:59.000Z

248

Extended Substitution Cipher Chaining mode (ESCC) Mohamed Abo El-Fotouh and Klaus Diepold  

E-Print Network (OSTI)

vectors like in CBC, CFB and OFB modes [16], coun- ters like in CTR [15] or nonces like in OCB mode [18

249

Statistical Testing for Disk Encryption Modes of Mohamed Abo El-Fotouh and Klaus Diepold  

E-Print Network (OSTI)

. We are going to study ten modes of operations, five narrow-block modes (CFB, CBC, CTR, LRW and XTS

250

E-Print Network 3.0 - abo-universal blood supply Sample Search...  

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

Study Confirms by Susan Brown Summary: nearly died out 20 years ago because of dwindling food supplies and poison traps left by ranchers... . The new research compares the types...

251

E-Print Network 3.0 - a-abo dysport clinical Sample Search Results  

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

Department Summary: Vanderbilt University School of Nursing Clinical Placement Department Process for Clinical... Placement Step 1: Identifying a Clinical PreceptorAgency...

252

A summary of chemical and biological testing of proposed disposal of sediment from Richmond Harbor relative to the Deep Off-Shelf Reference Area, the Bay Farm Borrow Area, and the Alcatraz Environs Reference Area  

SciTech Connect

The US Army Corps of Engineers was authorized to dredge Richmond Harbor to accomodate large, deep-draft vessels. An ecological evaluation of the Harbor sediments was performed describing the physical characteristics, toxic substances, effects on aquatic organisms,and potential for bioaccumulation of chemical contaminants. The objective of this report is to compare the sediment chemistry, acute toxicity, and bioaccumulation results of the Richmond Harbor sediments to each of the reference areas; i.e., the Deep Off-Shelf Reference Area, the Bay Farm Borrow Area, and the Alcatraz Environs Reference Area. This report will enable the US Army Corps of Engineers to determine whether disposal at a reference area is appropriate for all or part of the dredged material from Richmond Harbor. Chemical analyses were performed on 30 sediment samples; 28 of those samples were then combined to form 7 composites. The seven composites plus sediment from two additional stations received both chemical and biological evaluations.

Mayhew, H.L.; Karle, L.M.; Gruendell, B.D.; Pinza, M.R. [Battelle/Marine Sciences Lab., Sequim, WA (United States)

1993-12-01T23:59:59.000Z

253

Influences of offshore activity. Hearing before the Subcommittee on Panama Canal/Outer Continental Shelf, of the House of Representatives, Ninety-Eighth Congress, First Session on offshore oil and gas activity and its socio-economic and environmental influences, October 12, 1983  

SciTech Connect

A field hearing in Humble, Texas heard testimony on the socio-economic and environmental effects of Outer Continental Shelf oil and gas activity in the Gulf of Mexico. These activities influence the commercial and recreational climate of the area as well as municipal services. The 20 witnesses included representatives of the petroleum, shipping, fishing, and other industries, environmental groups, and both organizations and agencies concerned with coastal management. Additional material and communications supplied for the record follows the testimony.

Not Available

1984-01-01T23:59:59.000Z

254

Trace metal fronts in European shelf waters  

Science Journals Connector (OSTI)

... dissolved Cd, Cu, and Mn values reported there5. The metal analyses were made by flameless atomic absorption spec-trometry using the pre-concentration methods described elsewhere6'7. Detection limits ...

K. Kremling

1983-05-19T23:59:59.000Z

255

Trace fossil assemblages in selected shelf sandstones  

E-Print Network (OSTI)

with progradation of the delta. The presence of trace fossils throughout the section, as compared to the lack of burrows in the upper unit of the True Watt A-1 section, can be attributed to the marginal location of the deposits. Santa Fe 13 and Santa Fe 10... with progradation of the delta. The presence of trace fossils throughout the section, as compared to the lack of burrows in the upper unit of the True Watt A-1 section, can be attributed to the marginal location of the deposits. Santa Fe 13 and Santa Fe 10...

Locke, Kathleen Ann

2012-06-07T23:59:59.000Z

256

Geology of the South Texas shelf banks  

E-Print Network (OSTI)

IEI CONALSAL NASA NSNSTNICT NSSLSC TON Figure 5. Line drawing of 3. 5 kBN profile A-A over Southern Bank and diagrasssatic representation of four cores located on this profAle (V, B. = vertical exaggeration). 23 40 BO 70 100 0I 1 ~ ~ 2 v 0... surrounding the bank, only one major textural deviation is evident. The shelly zone on the western periphery of the bank ends at 2. 5 m depth in Core 39 and is underlain by a silty clay with occasional shell fragments. A sample from the bottom of Core 39...

Lindquist, Paul

1978-01-01T23:59:59.000Z

257

Society for the Scientific Study of Religion  

Science Journals Connector (OSTI)

...D.C. (H. G. Vavra, SPA, 1221 Connecticut Ave., NW, Washington, D.C.) 13-14...it's the lowest cost way to filter. The price is just $9.00 per shelf pack of 12...Chart LI Pressure Chart Sizes Available El Prices OI Samples CL Name of Nearest Distributor...

Samuel Z. Klausner

1965-04-09T23:59:59.000Z

258

File:EIA-Williston-NW-Liquids.pdf | Open Energy Information  

Open Energy Info (EERE)

Liquids.pdf Liquids.pdf Jump to: navigation, search File File history File usage Williston Basin, Northwest Part By 2001 Liquids Reserve Class Size of this preview: 776 × 600 pixels. Full resolution ‎(6,600 × 5,100 pixels, file size: 6.09 MB, MIME type: application/pdf) Description Williston Basin, Northwest Part By 2001 Liquids Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Montana, North Dakota, South Dakota File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment

259

1730 RHODE ISLAND AVENUE, NW WASHINGTON, DC 20036  

E-Print Network (OSTI)

is the national trade association representing the companies and communities engaged in the waste-to-energy sector energy from waste Testimony of Ted Michaels President, Energy Recovery Council Before the Connecticut the reclassification of trash-to-energy facilities as Class 1 renewable energy sources. Chairman Meyer, Chairman Roy

260

Isotopic Analysis At Nw Basin & Range Region (Kennedy & Van Soest...  

Open Energy Info (EERE)

useful regional reconnaissance DOE-funding Unknown Notes The correspondence of helium isotope ratios and active transtensional deformation indicates a deformation-enhanced...

Note: This page contains sample records for the topic "nw shelf abo" 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

NW Michigan Regional Fruit Grower Newsletter CALENDAR OF EVENTS  

E-Print Network (OSTI)

Restoration Workshop Martin Basch Farmstead Port Oneida Rural Historic District 7/4-7/8 Cherry Connection in a timely manner. Don't miss these meetings! Leelanau County Larry Esch Farm, 1 mile west of Eagle Highway on Horn Road Dates: Every Wednesday, May 18-July 6 Time: 1-2pm Grand Traverse County Josh Wunsch Farm, Old

262

NW Michigan Regional Fruit Grower Newsletter CALENDAR OF EVENTS  

E-Print Network (OSTI)

Pruning Workshop Port Oneida Rural Historic District Contact: Kimberly Mann 231/326-5135 ext. 501 5 Restoration Workshop Port Oneida Rural Historic District Contact: Kimberly Mann 231/326-5135 ext. 501 SPRING, Grand Traverse County Don't forget to register for the grape IPM meeting on April 11, 2006. Drs. Duke

263

Geographic Information System At Nw Basin & Range Region (Blewitt...  

Open Energy Info (EERE)

reconnaissance DOE-funding Unknown Notes On the regional scale, we investigated the spatial relationship of known geothermal activity with: (1) the regional tendency of...

264

1752 Columbia Rd. NW, Fourth Floor Washington, DC 20009  

E-Print Network (OSTI)

homebuyers could benefit from significant financial savings each year. Installing solar panels on new homes solar panels in bulk at lower prices. When one takes into account the California Energy Commission DIEGO RESIDENTS, BUILDERS BENEFIT FROM SOLAR REQUIREMENTS San Diego residents and builders could benefit

Kammen, Daniel M.

265

NW Michigan Regional Fruit Grower Newsletter November 2005  

E-Print Network (OSTI)

/13 NRCS CSP Roundtable Meeting NWMHRS 12/15 NRCS CSP Roundtable Meeting Banks Township Hall, Ellsworth 12 at the Antrim County MSU Extension office, (231) 533-8818 NRCS CONSERVATION SECURITY PROGRAM (CSP) ROUNDTABLE Conservationist NRCS's CSP program has come to Northern Michigan! NRCS has chosen the Grand Traverse Bay watershed

266

NW Michigan Regional Fruit Grower Newsletter December 2008  

E-Print Network (OSTI)

, Traverse City 12/19 Tel-Farm Appointments NWMHRS 2009 1/8 Wind Energy Workshop NWMHRS 1/15 Get Farming

267

BPA, Committed to NW Values - REVISED - Nov 2010.indd  

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

and the Bureau of Reclamation own and operate the federal dams; BPA sells the wholesale electricity they generate. These three agencies coordinate with other public and private...

268

Data Acquisition-Manipulation At Nw Basin & Range Region (Blackwell...  

Open Energy Info (EERE)

References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range...

269

Modeling-Computer Simulations At Nw Basin & Range Region (Blackwell...  

Open Energy Info (EERE)

systems References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range...

270

Magnitudes of detectable and localizable shocks in nw bohemia  

Science Journals Connector (OSTI)

???a ??????a ?????mu????m? ???u?m?a?uu ?????u????u? ?????u? ? ???a?mu ??rt;?????? ? ???????anart;??? ???uu u???a????u ?ma??u??u ?a m???um??uu ???, ??? u ??? ?a ?????? ???a ?????u????u? n???? ?a ?mrt;?????? ?ma...

Vladimr Toby; Jaroslav Fiedler; Dana Knaislov

1985-01-01T23:59:59.000Z

271

Geographic Information System At Nw Basin & Range Region (Coolbaugh...  

Open Energy Info (EERE)

David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa- Recognition Of Multiple Geothermal Environments Additional References Retrieved from...

272

Teleseismic-Seismic Monitoring At Nw Basin & Range Region (Biasi...  

Open Energy Info (EERE)

Unknown References Glenn Biasi, Leiph Preston, Ileana Tibuleac (2009) Body Wave Tomography For Regional Scale Assessment Of Geothermal Indicators In The Western Great Basin...

273

Modeling-Computer Simulations At Nw Basin & Range Region (Biasi...  

Open Energy Info (EERE)

Unknown References Glenn Biasi, Leiph Preston, Ileana Tibuleac (2009) Body Wave Tomography For Regional Scale Assessment Of Geothermal Indicators In The Western Great Basin...

274

August 2011 Department of Chemical Engineering  

E-Print Network (OSTI)

.abo.fi/vt course material: http://web.abo.fi/~rzevenho/kursRZ.html Natural gas + CO2 Liquid solvent for example

Zevenhoven, Ron

275

Reactive SputteredWide-Bandgap p-Type Semiconducting Spinel AB2O4 and Delafossite ABO2 Thin Films for Transparent Electronics  

Science Journals Connector (OSTI)

Reactive sputtering is one of the most widely used techniques for preparing compound thin films (such as oxides, nitrides, carbides, etc.) by sputtering metal targets in an active gas atmosphere (Ar + O2/N2/CH4.....

Arghya N. Banerjee; Kalyan K. Chattopadhyay

2008-01-01T23:59:59.000Z

276

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Characterizing groundwater contamination by petroleum operations Characterizing groundwater contamination by petroleum operations Characterizing Groundwater Contamination by Petroleum Operations Authors: Jonathan Fisher, Oklahoma State University, Stillwater, OK. Venue: Oklahoma Clean Lakes and Watersheds Association’s 16th Annual Conference in Tahlequah, OK, April 11-13, 2007 (http://www.oclwa.org/ [external site]). Abstract: Produced water, which often has elevated levels of dissolved salts and soluble hydrocarbons, is a byproduct of petroleum production. This study investigated the extent and potential for effects of produced water contamination from occasional surface seepage and possible subsurface flow into an unconfined aquifer along the shore of Skiatook Lake in northeastern Oklahoma. We monitored the chemistry and toxicity of the produced-water source and selected groundwater wells. Produced-water toxicity monitoring employed three cladoceran species (Daphnia pulex, D. magna, and Ceriodaphnia dubia) and one fish, the fathead minnow (Pimephales promelas), while groundwater monitoring used only D. pulex. The chemical constituents of the produced water and receiving groundwater varied little over time. Both the produced water and groundwater were toxic to the test organisms. Cladoceran produced water 48-h median lethal concentrations (LC50) ranged between 1% and 5%. Fathead minnow LC50s were between 7% and 11% for acute (48-h) survival endpoints and median effects concentrations of 2% to 6% for growth effects. D. pulex bioassays on groundwater samples resulted in 48-h LC50s ranging from 3.9% near a produced-water injection well to greater than 100% elsewhere at the impact site. We also used geographic information systems to explore gradients in chemical composition and predicted effects on test organisms by contaminated groundwater.

277

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Numerical Studies of Geomechanical Stability of Hydrate-Bearing Sediments Numerical Studies of Geomechanical Stability of Hydrate-Bearing Sediments Authors: George J. Moridis, Jonny Rutqvist, Lawrence Berkeley National Laboratory. Venue: 2007 Offshore Technology Conference, Houston, TX, April 30–May 1, 2007 (http://www.otcnet.org/ [external site]). Abstract: The thermal and mechanical loading of hydrate-bearing sediments (HBS) can result in hydrate dissociation and a significant pressure increase, with potentially adverse consequences on the integrity and stability of the wellbore assembly, the HBS, and the bounding formations. The perception of HBS instability, coupled with insufficient knowledge of their geomechanical behavior and the absence of predictive capabilities, has resulted in a strategy of avoidance of HBS when locating offshore production platforms. These factors can also impede the development of hydrate deposits as gas resources. For the analysis of the geomechanical stability of HBS, project researchers developed and used a numerical model that integrates a commercial geomechanical code into a simulator describing the coupled processes of fluid flow, heat transport, and thermodynamic behavior in geologic media. The geomechanical code includes elastoplastic models for quasi-static yield and failure analysis and viscoplastic models for time-dependent (creep) analysis. The hydrate simulator can model the non-isothermal hydration reactions (equilibrium or kinetic), phase behavior, and flow of fluids and heat in HBS, and can handle any combination of hydrate dissociation mechanisms. The simulations can account for the interdependence of changes in the hydraulic, thermodynamic, and geomechanical properties of the HBS, in addition to swelling/shrinkage, displacement (subsidence), and possible geomechanical failure. Researchers investigated in three cases the coupled hydraulic, thermodynamic, and geomechanical behavior of oceanic HBS systems. The first involves hydrate heating as warm fluids from deeper, conventional reservoirs ascend to the ocean floor through uninsulated pipes intersecting the HBS. The second case involves mechanical loading caused by the weight of structures placed on HBS at the ocean floor, and the third describes system response during gas production from a hydrate deposit. The results indicate that the stability of HBS in the vicinity of warm pipes may be significantly affected, especially near the ocean floor where the sediments are unconsolidated and more compressible. Conversely, the increased pressure caused by the weight of structures on the ocean floor increases the stability of hydrates, while gas production from oceanic deposits minimally affects the geomechanical stability of HBS under the conditions that are deemed desirable for production.

278

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Devonian and Mississippian Mudrock systems in Texas: Contrasts and Commonalities Devonian and Mississippian Mudrock systems in Texas: Contrasts and Commonalities Devonian and Mississippian Mudrock systems in Texas: Contrasts and Commonalities Authors: Ruppel, Stephen C. and Robert G. Loucks, Bureau of Economic Geology, Jackson School of GeoSciences, University of Texas at Austin Venue: West Texas Geological Society Symposium, in Midland, Texas September 10-12, 2008. http://www.wtgs.org [external site] Abstract: The Devonian Woodford and Mississippian Barnett formations document a long (approximately 70-80 million year) period of clay-rich sedimentation along the southern margin of the Laurentian paleocraton during the middle Paleozoic. As might be expected, these rocks display many general similarities, for example in thickness, mineralogy, organic carbon content, thermal maturity, organic matter type, etc. Both also display conspicuous and systematic changes in composition from more proximal to more distal areas. However, our studies of more than 75 cores across the Permian and Ft. Worth Basins demonstrate that dissimilarities between the two systems are perhaps even more common than similarities. Many of the differences can be related to paleogeography, basin hydrography, and global sea level.

279

NETL: Oil & Natural Gas Technologies Reference Shelf - Coalbed Methane  

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

Coalbed Methane Production and Reclamation Field Tour Coalbed Methane Production and Reclamation Field Tour Coalbed Methane Production and Reclamation Field Tour Author: John Wheaton, Montana Tech of the University of Montana, Butte, MT. Venue: The tour will be conducted starting in Gillette, WY, and extend along the northern Powder River Basin, on June 3, 2007, under the auspices of the American Society for Mining and Reclamation (http://ces.ca.uky.edu/asmr/ [external site]). Abstract: This field tour will emphasize successful reclamation in an alternative type of coal industry in the Powder River Basin: coalbed methane. The tour will leave Gillette, WY, at 7:30 a.m., Sunday, June 3, 2007, and travel to Sheridan, WY, and back, touring coalbed methane production areas. Stops will include active drilling and producing areas to learn about the footprint and approach to development of coalbed methane. Reclamation includes drilling pads and linear trenching for water and gas pipelines. Produced-water management is a major expense and concern. Among the water management options we plan to see are stock-watering facilities, infiltration ponds, irrigation sites, and water treatment facilities. A landowner will join us and be able to answer questions from the ranching perspective for part of the tour. Lunches are included in the price of the tour.

280

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation  

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

Designing a Pilot-Scale Experiment for the Production of Natural Gas Hydrates and Sequestration of CO2 in Geologic Reservoirs Designing a Pilot-Scale Experiment for the Production of Natural Gas Hydrates and Sequestration of CO2 in Geologic Reservoirs Designing a Pilot-Scale Experiment for the Production of Natural Gas Hydrates and Sequestration of CO2 in Geologic Reservoirs Authors: Mark White and Pete McGrail Venue: The 9th International Conference on Greenhouse Gas Technologies will be held November 16-20, 2008 at The Omni Shoreham Hotel in Washington, DC. The Conference will be organized by MIT in collaboration with the IEA Greenhouse Gas R&D Programme (IEA GHG), with major sponsorship from the US Department of Energy. http://mit.edu/ghgt9/ . Abstract: Under high pressure and low temperature conditions small nonpolar molecules (typically gases) can combine with water to form crystalline structures known as clathrate hydrates. Methane (CH4) and carbon dioxide (CO2) form nearly identical clathrate structures (sI), with the CO2 hydrate being thermodynamically favored. Vast accumulations of methane hydrates have been found in suboceanic deposits and beneath the arctic permafrost. Because of the large volumetric storage densities, clathrate hydrates on the deep ocean floor have been suggested as a sequestration option for CO2. Alternatively, CO2 hydrates can be formed in the geologic settings of naturally occurring accumulations of methane hydrates. Global assessments of natural gas resources have shown that gas hydrate resources exceed those of conventional resources, which is indicative of the potential for clathrate hydrate sequestration of CO2. Recovery of natural gas from hydrate-bearing geologic deposits has the potential for being economically viable, but there remain significant technical challenges in converting these natural accumulations into a useable resource. Currently, conventional methods for producing methane hydrates from geologic settings include depressurization, thermal stimulation, and inhibitor injection. Although CO2 clathrates generally are not naturally as abundant as those of CH4, their occurrence forms the foundation of an unconventional approach for producing natural gas hydrates that involves the exchange of CO2 with CH4 in the hydrate structure. This unconventional concept has several distinct benefits over the conventional methods: 1) the heat of formation of CO2 hydrate is greater than the heat of dissociation of CH4 hydrate, providing a low-grade heat source to support additional methane hydrate dissociation, 2) exchanging CO2 with CH4 will maintain the mechanical stability of the geologic formation, and 3) the process is environmentally friendly, providing a sequestration mechanism for the injected CO2. The exchange production technology would not be feasible without the favorable thermodynamics of CO2 hydrates over CH4 hydrates. This situation yields challenges for the technology to avoid secondary hydrate formation and clogging of the geologic repository. Laboratory-scale experiments have demonstrated the feasibility of producing natural gas and sequestering CO2 using the direct exchange technology in geologic media. These experiments have duplicated numerically using the STOMP-HYD simulator, which solves the nonisothermal multifluid flow and transport equations for mixed hydrate systems in geologic media. This paper describes the design (via numerical simulation) of a pilot-scale demonstration test of the CO2 exchange production and sequestration technology for a geologic setting beneath the arctic permafrost, involving a gas-hydrate interval overlying a free-gas interval (i.e., Class 1 Hydrate Accumulation).

Note: This page contains sample records for the topic "nw shelf abo" 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

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation  

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

Conditions under Which Gaseous Methane Will Fracture Ocean Sediments and Penetrate Through the Hydrate Stability Zone Conditions under Which Gaseous Methane Will Fracture Ocean Sediments and Penetrate Through the Hydrate Stability Zone Conditions under Which Gaseous Methane Will Fracture Ocean Sediments and Penetrate Through the Hydrate Stability Zone: Modeling Multiphase Flow and Sediment Mechanics at the Pore-Scale Authors: Antone K. Jain and Ruben Juanes Venue: American Geophysical Union Fall Meeting, San Francisco, CA, December 15-19, 2008 – Special Session H06: Particle Tracking Simulation of Fluid Flow and Mass Transport. http://www.agu.org/meetings/fm08/ Abstract: Two competing processes were simulated, capillary invasion and fracture opening, by which free methane gas penetrates the Hydrate Stability Zone (HSZ). In situ conditions were predicted in which the methane propagates fractures and flows all the way through the HSZ and into the ocean, bypassing hydrate formation. In the fully coupled model, the discrete element method was used to simulate the sediment mechanics, and pore fluid pressures and surface tension between the gas and brine were accounted for by incorporating additional sets of pressure forces and adhesion forces. Results indicate that given enough capillary pressure, the main factor controlling the mode of gas transport is the grain size, and show that coarse-grain sediments favor capillary invasion and widespread hydrate formation, whereas fracturing dominates in fine-grain sediments. The fracturing threshold was calculated as a function of grain size, capillary pressure, and seafloor depth, and place these results in the context of naturally-occurring hydrate

282

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Capillarity-controlled displacements in sediments with moveable grains Capillarity-controlled displacements in sediments with moveable grains Capillarity-controlled displacements in sediments with moveable grains: Implications for growth of methane hydrates Authors: Maša Prodanovic (speaker), Steven L. Bryant Venue: SPE Annual Technical Conference and Exhibition, Denver, Colorado, 21-24 September, 2008. http://www.spe.org [external site]. Abstract: We consider immiscible displacements when fluid/fluid interfaces are controlled by capillary forces. The progressive quasistatic (PQS) algorithm based on the level set method readily determines the geometry of these interfaces at the pore level. Capillary pressure generally exerts a net force on grains supporting an interface. We extend PQS to implement a kinematic model of grain displacement in response to that force. We examine the changes in the drainage curve caused by this coupling. We compute the interfacial area associated with the bulk water phase, anticipating preferential growth of methane hydrate there. Gas invasion of sediments is one mechanism by which methane hydrates are believed to form. In unconsolidated ocean sediments the capillary pressure exerted by an accumulated gas phase below the hydrate stability zone can be large enough to move grains apart. This motion alters the pore throat sizes which control subsequent drainage of the sediment. A model for the dynamics of this process is useful for assessing the competition between drainage (controlled by capillary forces) and fracturing (controlled by pore pressure and earth stresses). This in turn provides insight into the possible growth habits within the hydrate stability zone. When grains can move in response to net force exerted by the gas phase, small variations in an otherwise uniform distribution of pore throat sizes quickly lead to self-reinforcing, focused channels of gas phase. In contrast to behavior in stationary grains, the drainage curve exhibits no clear percolation threshold. Displacements in materials with broad throat size distributions also exhibit self-reinforcing channels. Behind the leading edge of the displacement front, the net force exerted on the grains tends to push them together. This effectively seals off these regions from subsequent invasion. Thus hydrate growth tends to be localized along the channel of displaced grains. This is the first quantitative grain-scale study of the drainage behavior when grains can move in response to invasion events. The coupling leads to qualitatively different displacement patterns. The method presented for studying this behavior is applicable to any granular material and to other applications, such as sand production.

283

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Multivariate Modeling of 3D9C Data for Constructing a Static Reservoir Model of Algal Mounds in the Paradox Basin, CO Multivariate Modeling of 3D9C Data for Constructing a Static Reservoir Model of Algal Mounds in the Paradox Basin, CO Multivariate Modeling of 3D9C Data for Constructing a Static Reservoir Model of Algal Mounds in the Paradox Basin, CO Authors: Paul La Pointe, FracMan Technology Group, Golder Associates Inc., Redmond, WA; Robert D. Benson, Colorado School of Mines, Golden, CO; and Claudia Rebne, Legacy Energy, Denver, CO. Venue: American Association of Petroleum Geologists/Rocky Mountain Section Annual Meeting in Snowbird, UT, October 7-9, 2007. Abstract: A 3D9C survey was carried out over a 6 square mile portion of the Roadrunner and Towaoc fields on the Ute Mountain Ute reservation in southwestern Colorado. This survey was jointly funded by DOE and the Southern Ute tribe’s Red Willow Corporation to promote development of Ismay algal mound plays in the Paradox Basin within Ute Mountain Tribal lands and elsewhere in the Paradox Basin. Multicomponent data were utilized to better delineate the external mound geometry as well as to estimate internal mound reservoir parameters such as matrix permeability, saturation, and porosity. Simple cross-plotting of various multicomponent attributes against reservoir properties did not provide the desired predictive accuracy, in part due to sub-optimal frequency content in components derived from the shear wave data. However, a multivariate statistical analysis greatly improved the predictive accuracy. These multivariate regressions were then used to prescribe reservoir properties for a static reservoir model, which in turn formed the basis for a dynamic reservoir simulation model of the project area to assess the usefulness of the multivariate relations developed. This poster presentation will illustrate the workflow used to carry out the multivariate modeling, key maps of the reservoir properties that were derived, the static model, and results from the dynamic simulation used to assess the usefulness of the approach. Results from wells drilled based on the seismic data also will be presented.

284

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Production Strategies for Marine Hydrate Reservoirs Production Strategies for Marine Hydrate Reservoirs Production Strategies for Marine Hydrate Reservoirs Authors: J. Phirani. & K. K. Mohanty Venue: 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008. http://www.ichg.org/showcontent.aspx?MenuID=287 [external site]. Abstract: Large quantities of natural gas hydrate are present in marine sediments. This research is aimed at assessing production of natural gas from these deposits. We had developed a multiphase, multicomponent, thermal, 3D simulator in the past, which can simulate production of hydrates both in equilibrium and kinetic modes. Four components (hydrate, methane, water and salt) and five phases (hydrate, gas, aqueous-phase, ice and salt precipitate) are considered in the simulator. The intrinsic kinetics of hydrate formation or dissociation is considered using the Kim–Bishnoi model. Water freezing and ice melting are tracked with primary variable switch method (PVSM) by assuming equilibrium phase transition. In this work, we simulate depressurization and warm water flooding for hydrate production in a hydrate reservoir underlain by a water layer. Water flooding has been studied as a function of well spacing, well orientation, and injection temperature. Results show that depressurization is limited by the supply of heat of hydrate formation. Warm water flooding can supply this heat of formation. Gas production rate is higher for the water flooding than depressurization. Optimum configuration for wells and water temperature are identified.

285

NETL: Coal & Coal Biomass to Liquids - Reference Shelf  

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Documents, Papers, Presentations Documents, Papers, Presentations Documents Papers Presentations DOCUMENTS Fuels Industry Newsletter December 2013 November 2013 October 2013 September 2013 August 2013 July 2013 June 2013 May 2013 April 2013 March 2013 February 2013 January 2013 Fuels Industry Newsletter 2012 Technology Readiness Assessment-Analysis of Active Research Portfolio [PDF-7.27MB] (Dec 19, 2012) Consistent with ongoing efforts to supply policy makers with clear information in a form more amenable for them to gauge the maturity of carbon capture, utilization, and storage (CCUS) technologies, the National Energy Technology Laboratory (NETL) has undertaken an assessment of its "key technologies." The Department of Energy-Fossil Energy Technology Readiness Assessment Guide (DOE-FE Guide1) served as the basis for a

286

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Simulation of the system behavior of hydrate-bearing geologic media involves solving fully coupled mass and heat balance equations. The models need to simulate equilibrium or kinetic processes of hydrate formation and dissociation. TOUGH+HYDRATE is a widely used code for gas hydrate simulations. The code can model non-isothermal gas release, phase changes and flow of fluids and heat. It accounts for up to four mass components and four possible phases. Because hydrate simulations require intensive computational effort, many studies that involve serial processors are limited by problems of complexity and scale. With the growing availability of multi-core CPUs, Linux clusters, and super-computers, the use of parallel processing methods is a distinct advantage. This study develops a domain decomposition approach for large-scale gas hydrate simulations using parallel computation. The approach partitions the simulation domain into small sub-domains. The full simulation domain is simulated integrally by using multiple processes. Each process will be in charge of one portion of the simulation domain for updating thermophysical properties, assembling mass and energy balance equations, solving linear equation systems, and performing other local computations. The linear equation systems are solved in parallel by multiple processes with a parallel linear solver. The multiple processes are run in parallel on shared- or distributed memory multiple-CPU computers. A hybrid approach, running multiple processes in each CPU and using multiple CPUs, may achieve additional speedup. During calculations, communication between processes is needed to update sub-domain boundary parameters. An efficient inter-process communication scheme has been developed. The new approach was implemented into the TOUGH+HYDRATE code and demonstrates excellent speedup and very good scalability. For many large-scale problems, this method can obtain linear or super-linear speedup. This paper will show applications of the new approach to simulate three dimensional field-scale models for gas production from gas-hydrate

287

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Coupled Hydrological, Thermal and Geomechanical Analysis of Wellbore Stability in Hydrate-Bearing Sediments Coupled Hydrological, Thermal and Geomechanical Analysis of Wellbore Stability in Hydrate-Bearing Sediments Coupled Hydrological, Thermal and Geomechanical Analysis of Wellbore Stability in Hydrate-Bearing Sediments (OTC 19672) Authors: Jonny Rutqvist (speaker), George J. Moridis, and Tarun Grover Venue: 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 ( http://www.spe.org and http://www.smenet.org [external sites] ) Abstract: This study investigated coupled multiphase flow, themal, thermodynamic and geomechanical behavior of oceanic Hydrate Bearing Sediments (HBS), during depressurization-induced gas production in general, and potential wellbore in-stability and casing deformation in particular. The project investigated the geomechanical changes and wellbore stability for two alternative cases of production using a horizontal well in a Class 3 deposit and a vertical well in a Class 2 deposit. The research compared the geomechanical responses and the potential adverse geomechanical effects for the two different cases. Analysis shows that geomechanical responses during depressurization-induced gas production from oceanic hydrate deposits is driven by the reservoir-wide pressure decline (Delta P), which in turn is controlled by the induced pressure decline near the wellbore. Because any change quickly propagates within the entire reservoir, the reservoir wide geomechanical response can occur within a few days of production induced pressure decline.

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Natural Fractures in the Barnett Shale in the Delaware Basin Natural Fractures in the Barnett Shale in the Delaware Basin Natural Fractures in the Barnett Shale in the Delaware Basin, Pecos Co. West Texas: comparison with the Barnett Shale in the Fort Worth Basin Authors: Julia F. W. Gale Venue: West Texas Geological Society Symposium, in Midland, Texas September 10-12, 2008. http://www.wtgs.org [external site] Abstract: This study describes the several sets of natural fractures in a Barnett Shale core from Pecos County, including partly open fractures, fractures associated with chert layers and early, deformed fractures. These are compared with fractures previously described in the Barnett Shale in the Fort Worth Basin. The basic fracture attributes are discussed in terms of their implications for hydraulic fracture treatments. The steep, narrow, calcite-sealed fractures that are present in many Barnett cores in the Fort Worth Basin are important because of their likely tendency to reactivate during hydraulic fracture treatments. Larger open fractures are possibly present, clustered on the order of several hundred feet apart. In the core studied from the Delaware Basin there is evidence that a greater number of narrower fractures may be open. Thus, their importance for completions may be rather different than those in the Fort Worth Basin

289

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An Alternative Tri-axial Testing System for CO2-Rock Interaction Experiments An Alternative Tri-axial Testing System for CO2-Rock Interaction Experiments An Alternative Tri-axial Testing System for CO2-Rock Interaction Experiments Authors: Zhengwen Zeng (speaker), Xuejun Zhou, and Hong Liu, University of North Dakota. Venue: 43rd U.S. Rock Mechanics Symposium and 4th U.S.-Canada Rock Mechanics Symposium, Asheville, NC, June 28-July 1, 2009. http://www.armasymposium.org/ [external site] Abstract: Carbon dioxide (CO2)-rock interaction has become an important topic in recent years due to the potential energy and environmental benefits offered by injecting CO2 into deep geological formations for enhanced oil recovery (EOR) and carbon sequestration. In both cases, CO2 reacts with formation rocks under deep geological formation conditions. The reaction will change the petrophysical, geomechanical, and geochemical properties of the rock. Consequently, rock integrity and fluid flow characteristics will be changed. How to quantitatively describe this CO2-rock interaction process is critical to the success of both EOR and sequestration projects. Experimental investigation under reservoir conditions is a direct way to develop the quantitative models to describe this process. This type of experiment involves real-time measurements for petrophysical, geomechanical, and geochemical parameters. Existing tri-axial testing systems can meet part of the requirements. An alternative triaxial testing system has been developed for this purpose. This paper introduces the principles, measurements, data processing, and the calibration and verification of the system

290

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Saline Water Disposal in the Uinta Basin, Utah Saline Water Disposal in the Uinta Basin, Utah Saline Water Disposal in the Uinta Basin, Utah Authors: Michael D. Vanden Berg, Stephanie Carney, Michael D. Laine, Craig D. Morgan, Utah Geological Survey; and Paul B. Anderson, consulting geologist. Venue: Poster Session: Responsible Development, Sustainability, and Climate Science—Groundwater and Site Remediation, June 9, 2009, American Association of Petroleum Geologists annual meeting, Denver, CO, June 7 to 10, 2009. http://www.aapg.org/denver/ [external site] Abstract: Saline water disposal is the single most pressing issue with regard to increasing petroleum and natural gas production in the Uinta Basin of Utah. Conventional oil and gas fields in the basin provide 67% of Utah’s total crude oil production and 71% of Utah’s total natural gas, the latter of which has increased 175% in the last 10 years. As petroleum production increases, so does saline water production, creating an increased need for economic and environmentally responsible disposal plans. Current water disposal wells are near capacity, and permitting for new wells is being delayed because of a lack of technical data regarding potential disposal aquifers and questions concerning contamination of fresh water sources. Many Uinta Basin operators claim that petroleum and natural gas production cannot reach its full potential until a suitable, long-term saline water disposal solution is determined. Researchers have begun efforts to re-map the base of the moderately saline aquifer within the Uinta Basin using more robust data and more sophisticated GIS techniques than previous efforts. Below this base, they believe that saline water can be injected without damage to the overlying freshwater reservoirs. Water chemistry data are being collected from wells of operators and governmental agencies. These ground-truth data are supplemented with water chemistry information calculated from geophysical logs. In addition to the new GIS-based map, the researchers are constructing cross sections showing the stratigraphic position of the moderately saline to very saline transition and its relationship to potential seals and disposal zones in the Uinta Basin. A potentially suitable disposal zone for large volume saline water disposal is the fresh to slightly saline Bird’s-Nest aquifer. This aquifer is located in the oil shale zone of the Green River formation’s Parachute Creek member and is 200 to 300 ft above the kerogen-rich Mahogany zone. A significant concern is that saline water disposal into the Bird’s-Nest by conventional gas producers may hinder oil shale development by creating unforeseen economic and technical hurdles. With increased saline water disposal, the water quality in the Bird’s-Nest could degrade and create additional water disposal problems for oil shale development companies. Researchers have examined this aquifer in outcrop, core, and geophysical logs and have gained a better understanding of its areal extent, thickness, and zones of differing water chemistry

291

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Updated Results from Deep Trek High-Temperature Electronics Development Programs Updated Results from Deep Trek High-Temperature Electronics Development Programs Updated Results from Deep Trek High-Temperature Electronics Development Programs Author: Bruce W. Ohme, Honeywell Inc., Plymouth, MN. Venue: HITEN 2007 (High-Temperature Electronics Network conference), St. Catherine’s College, Oxford, U.K., September 17–19, 2007, (http://science24.com/event/hiten2007 [external site]). Abstract: Electronics are used in modern oil and gas exploration to collect, log, and/or process data such as heading and inclination, weight on the bit, vibration, seismic/acoustic response, temperature, pressure, radiation, and resistivity of the strata. High-temperature electronics are needed that can operate reliably in deep-well conditions (up to 250oC). Under its Deep Trek program, the U.S. Department of Energy has funded two projects led by Honeywell. The first project, launched in 2003 and being completed this year, established a production-level integrated circuit manufacturing process, components, and design tools specifically targeting high-temperature environments (up to 250oC). The second project, launched in 2006 and expected to be completed in 2008, will develop rugged packaging suitable for downhole shock and vibration levels that will be used to house and demonstrate components developed in the earlier project. This paper will describe updated results from both of these projects, including previously unreported results obtained from prototype testing of a high-resolution analog-to-digital converter (ADC); a high-temperature, single-poly, floating-gate EEPROM (electrically erasable programmable read-only memory); and a 12-bit, successive-approximation ADC. Also, a multi-chip module being developed as a complete downhole processing unit will be discussed

292

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Estimating Fracture Reorientation Due to Fluid Injection/Production Estimating Fracture Reorientation Due to Fluid Injection/Production Estimating Fracture Reorientation Due to Fluid Injection/Production Authors: Zongyu Zhai and Mukul M. Sharma, University of Texas at Austin. Venue: Society of Petroleum Engineers’ Production and Operations Symposium, Oklahoma City, OK, April 1–3, 2007 (http://www.spe.org/ [external site]). Abstract: The injection or production of large volumes of fluid into or from a reservoir can result in significant changes to the effective in-situ stress distributions. Field evidence of this has been provided in the past by mapping refracturing treatments in tight gas sands and microseismic monitoring of injection wells in waterflooded reservoirs. A poro-elastic model is presented to show how the extent of fracture reorientation can be estimated under different conditions of fluid injection and production. The extent of fracture reorientation is a function of the in-situ stresses, the mechanical properties of the rock, and the pore pressure gradients. In reservoirs where the pore pressure gradients are complicated due to multiple injection and production wells, fracture reorientation is sensitive to the net pore-pressure gradients. Fractures tend to reorient themselves towards the injection wells and away from production wells, if the pressure gradients are comparable to the in-situ stress contrast. While far-field principal stress orientations are impacted only by in-situ stresses and pore-pressure gradients, near-wellbore in-situ stress orientation is also impacted by the hoop stress and the wellbore pressure. These can have a significant effect on near-wellbore fracture reorientation. The results of our model are compared with field observations obtained from microseismic monitoring of water injection wells. The implications of the results to refracturing operations and candidate well selection are discussed.

293

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Fluid Flow through Heterogeneous Methane-Hydrate Bearing Sand Fluid Flow through Heterogeneous Methane-Hydrate Bearing Sand Fluid Flow through Heterogeneous Methane-Hydrate Bearing Sand: Observations Using X-Ray CT Scanning Authors: Yongkoo Seol and Timothy J. Kneafsey Venue: 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008. http://www.icgh.org/ [external site] Abstract: The effects of porous medium heterogeneity on methane hydrate formation, water flow through the heterogeneous hydrate-bearing sand, and hydrate dissociation were observed in an experiment using a heterogeneous sand column with prescribed heterogeneities. X-ray computed tomography (CT) was used to monitor saturation changes in water, gas, and hydrate during hydrate formation, water flow, and hydrate dissociation. The sand column was packed in several segments having vertical and horizontal layers with two distinct grain-size sands. The CT images showed that as hydrate formed, the water and hydrate saturations were dynamically redistributed by variations in capillary strength of the medium (the tendency for a material to imbibe water), which changed with the presence and saturation of hydrate. Water preferentially flowed through fine sand near higher hydrate-saturation regions where the capillary strength was elevated relative to the lower hydrate saturation regions. Hydrate dissociation initiated by depressurization varied with different grain sizes and hydrate saturations.

294

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Increasing the Viscosity of CO2 to Improve EOR Performance Increasing the Viscosity of CO2 to Improve EOR Performance Increasing the Viscosity of CO2 to Improve EOR Performance Authors: D. Xing, NETL; R. Erick, NETL and University of Pittsburgh Department of Chemical and Petroleum Engineering; K. Trickett, J. Eastoe, M. Hollamby, and K.Mutch, Bristol University School of Chemistry; S. Rogers and R. Heenan, ISIS STFC, Rutherford Appleton Laboratory, Chilton, UK; and D. Steytler, University of East Anglia School of Chemical Sciences, Norwich, UK. Venue: May 20, 2009, ISASF-ENSIC 9th International Symposium on Supercritical Fluids, Bordeaux, France, May 18-20, 2009. http://www.issf2009.cnrs.fr/ [external site] Abstract: About 1.5 billion standard cubic feet of CO2 is injected into US oil fields each day, resulting in the recovery of about 200,000 barrels per day of oil, but the low viscosity of CO2 results in viscous fingering and poor volumetric sweep efficiency. If the viscosity of dense CO2 could be increased by a factor of 2-20, much less CO2 would be required to recover the oil. Further, there would be no need for the injection of alternating slugs of water into the reservoir to reduce the relative permeability of the CO2. Researchers have identified two polymeric thickeners for CO2: a fluoroacrylate-styrene copolymer and a vinyl acetate-styrene copolymer. They have also hypothesized that it is possible to increase the viscosity (thicken) dense, high-pressure CO2 via the self-assembly of CO2-soluble surfactants into rod-like micelles. Three semi-fluorinated surfactants have been synthesized in order to test this concept; one with a monovalent cation and a single twin-tail, Na+1((COOCH2C4F8H)2CH2CHSO3)-1, and two with a divalent cation and two twin-tails, Ni+2(((COOCH2C4F8H)2CH2CHSO3)-1)2 and Co+2(((COOCH2C4F8H)2CH2CHSO3)-1)2. Phase behavior results indicate that all three surfactants are soluble to at least 5 wt% in CO2 at 295K and pressures less than 20 MPa. SANS results indicate that only the surfactants with divalent metal ions and two twin tails form cylindrical micelles in CO2. No viscosity enhancement was detected for the surfactant with the monovalent cation. Falling cylinder viscometry results will illustrate the degree of “CO2 thickening” that was achieved by the formation of rod-like micelles at relatively high shear rates. The mobility of the surfactant solution flowing through Berea sandstone was also provided to determine the effectiveness of the thickener at extremely low shear rates characteristic of enhanced oil recovery projects. The performance of the copolymeric and surfactant thickeners will be compared. The strategy for the development of CO2-soluble non-fluorous surfactants capable of forming rod-like micelles will also be presented.

295

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Mechanisms by Which Methane Gas and Methane Hydrate Coexist In Ocean Sediments Mechanisms by Which Methane Gas and Methane Hydrate Coexist In Ocean Sediments Mechanisms by Which Methane Gas and Methane Hydrate Coexist In Ocean Sediments Authors: Maša Prodanovic (speaker), Javad Behseresht, Yao Peng, Steven L. Bryant, Antone K. Jain and Ruben Juanes Venue: 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 ( http://www.spe.org and http://www.smenet.org [external sites] ) Abstract: A spectrum of behavior is encountered in methane hydrate provinces, especially ocean sediments, ranging from essentially static accumulations where the pore space is filled with hydrate and brine, to active seeps where hydrate and methane gas phase co-exist in the hydrate stability zone (HSZ). The grain-scale models of drainage and fracturing presented demonstrate key processes involved in pressure-driven gas phase invasion of a sediment. A novel extension of invasion percolation to infinite-acting, physically representative networks is used to evaluate the connectivity of water in a gas-drained sediment. A novel implementation of the level set method (LSM) is used to determine the capillarity-controlled displacement of brine by gas from sediment and from fractures within the sediment. The discrete element method (DEM) is extended to model the coupling between the pore fluids and the solid, and thereby predict the onset of sediment fracturing by gas phase pressure under in situ loading conditions. The DEM grain mechanics model accounts for the different pressure of brine and methane gas in a “membrane” two-fluid model. The fluid-fluid configuration from LSM can be mapped directly to the pore space in DEM, thereby coupling the drainage and mechanics models. The type of behavior that can emerge from the coupled processes is illustrated with an extended LSM model. The extension computes grain displacement by the gas phase with a simple kinematic rule.

296

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Mapping Study to Characterize NSCR Performance on a Natural Gas-Fueled Engine Mapping Study to Characterize NSCR Performance on a Natural Gas-Fueled Engine Mapping Study to Characterize NSCR Performance on a Natural Gas-Fueled Engine Authors: Mohamed Toema (speaker), Sarah Nuss-Warren, and Kirby S. Chapman, Kansas State University National Gas Machinery Laboratory; James McCarthy and Thomas McGrath, Innovative Environmental Solutions Inc. Venue: ASME Internal Combustion Engine Division 2009 Spring Technical Conference, May 3–6, Milwaukee, WI. http://www.asmeconferences.org/ICES09/index.cfm [external site]. Abstract: The researchers are conducting a project to characterize pollutant emissions performance of field gas-fired four-stroke cycle rich burn engines equipped with non-selective catalytic reduction (NSCR) technology. Engine emissions and operating parameters are being monitored on three engines over an extended period. In addition, a mapping study was conducted on one engine. The NSCR was operated at various controlled air-to-fuel (AF) ratios while emission measurements were conducted and engine operating parameters monitored. NOx, CO, and oxygen were measured using both EPA reference method technology and the portable analyzer used in the long-term study. In the mapping study, ammonia, formaldehyde, CO, NOx, and speciated hydrocarbon emissions were recorded in real-time using an extractive FTIR system. This paper focuses on the engine mapping phase. The mapping tests demonstrated a trade-off between NOx emissions and CO, ammonia, and hydrocarbon emissions. Richer engine operation (lower AF) decreases NOx emissions at the expense of higher CO, ammonia, and hydrocarbons. Leaner operation has the opposite effect. The results to date of the semi-continuous monitoring are presented in a separate paper.

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Presentation on Considerations for Evaluating Coalbed Methane Infiltration Pond Sites Presentation on Considerations for Evaluating Coalbed Methane Infiltration Pond Sites Considerations for Evaluating Coalbed Methane Infiltration Pond Sites Based on Site Studies in the Powder River Basin of Montana and Wyoming Author: John Wheaton, Montana Tech of the University of Montana, Butte, MT. Venue: American Society for Mining and Reclamation’s 24th annual meeting in Gillette, WY, June 2-7, 2007 (http://ces.ca.uky.edu/asmr/ [external site]). Abstract: Significant volumes of ground water are produced in association with coalbed methane (CBM) production in the Powder River Basin in Montana and Wyoming. This water must be managed in a manner that is both economical and sensitive to the semi-arid agricultural area of southeastern Montana and northeastern Wyoming. Infiltration ponds are one of the primary methods of handling produced water and have been in use in Montana and Wyoming for several years. A solid conceptual framework allows for the selection of infiltration pond sites that maximize impoundment life and minimize impacts. The ponds have several advantages in that they require a low initial investment and can help recharge the shallow ground-water system, which makes the produced water available for future uses. However, as the infiltrated water moves through the shallow weathered bedrock, a series of chemical reactions typically take place (primarily dissolution and oxidation), which temporarily increase the TDS due primarily to increases in Mg, Na, and SO4. As the available salts are removed along the ground-water flow path, the concentrations of dissolved constituents tend to decrease. Preliminary interpretations of data suggest that saturated paste extract analyses and lithologic investigations may be used to predict the types of changes in water quality that can occur. The fate and transport of the dissolved salts is controlled to a great extent by the rate of infiltration and the duration of saturated flow from the ponds. The rate of infiltration can be severely reduced as the clays in the pond floor and underlying material are exposed to the high-SAR produced water, which causes dispersion and reduced vertical hydraulic conductivity. Order of magnitude decreases in vertical hydraulic conductivity have been observed, which represents a trade-off. The changes will effectively decrease the volume of water that can be managed via an individual pond. However, the mobilized salts may be effectively sequestered by reduced ground-water flow, substantially reducing the temporal and geographic extent of impacts.

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Detailed Imaging of Facies and Fluid Distribution Within Carbonate Oil Reservoirs Detailed Imaging of Facies and Fluid Distribution Within Carbonate Oil Reservoirs Crosswell Seismic Amplitude-Versus-Offset for Detailed Imaging of Facies and Fluid Distribution Within Carbonate Oil Reservoirs Authors: Sean P. Trisch, Wayne D. Pennington, and Roger Turpening, Michigan Technological University, Houghton, MI. Venue: Seismological Society of America’s annual meeting in Waikaloa, Kona, HI., April 11–13, 2007 Abstract: Imaging of the Earth’s crust is increasingly being accomplished through the use of borehole-based sensors. Experience gained in recent crosswell seismic surveys may assist endeavors to image the near-borehole environment near plate boundaries or other places of scientific interest. A high-resolution crosswell seismic data set was collected over a Silurian (Niagaran) reef in Michigan’s Lower Peninsula. The survey was optimized for both reflection imaging purposes and the gathering of a wide range of incidence angles. The reflection image was intended to aid in interpretation of the reef structure at a level of detail never before possible with seismic methods. The survey was also conducted to maximize data available for study of the dependence of amplitudes with angle-of-incidence. Prestack angle data were processed to half-degree intervals and utilized for enhanced interpretation of the seismic image through partial stacks and through amplitude variation with angle (AVA) analyses. Frequencies as high as 3,000 Hz (the limit of the source sweep) were recorded, with a predominant signal at about 2,000 Hz; the well separation was 600 m, and the target reef is at 1,400–1,525 m depth. Many of the interfaces present within the area have small reflection amplitudes at narrow angles that increase substantially near the critical angle. Analyses were performed on various interfaces in the seismic section to compare with Zoeppritz-equation solutions, using rock data acquired through an extensive library of seismic and well logging data available for the area. These models were then compared with the actual AVA character acquired at the interface and matched as closely as possible. Through this analysis and match process, various rock property estimates were inferred or refined.

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Synergy among Surfactants in Solution Synergy among Surfactants in Solution Synergy among Surfactants in Solution and on Particles in Suspensions Authors: Shaohua Lu and Ponisseril Somasundaran, Columbia University, New York, NY. Venue: 81st ACS (American Chemical Society) Colloid & Surface Science Symposium, University of Delaware, Newark, DE, June 24–27, 2007 (http://www.engr.udel.edu/Colloids2007/) [external site]). Abstract: Surfactant mixtures are widely used in detergent, personal care, enhanced oil recovery, and flotation applications. Adsorption of nonionic/cationic/anionic (ex: n-dodecyl-â-D-maltoside(DM), and sodium dodecyl sulfonate) on solids such as alumina was studied in this work at different solution conditions of pH, mixing ratio and salt contents along with the wettability and zeta potential. Solution interactions were studied by analytical ultracentrifuge, surface tension, small-angle neutron scattering, and cryoTEM. It was found that surfactant adsorption is dramatically affected under certain pH conditions. The effects of pH, however, are reduced by synergistic interactions in the case of nonionic/anionic mixtures. Surface tension results reveal a negative interaction parameter, suggesting that there are synergistic interactions between them. Importantly, only one peak indicative of one type of micelle was identified using analytical ultracentrifugation in the case of the above anionic/nonionic mixtures, while two types of aggregates were observed in the case of nonionic/nonionic mixtures. The above information on surfactant aggregation helps to reveal the mechanisms of interactions between surfactants, as well as their efficient application in various industrial processes.

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Permeability of Laboratory-Formed Hydrate-Bearing Sand Permeability of Laboratory-Formed Hydrate-Bearing Sand Permeability of Laboratory-Formed Hydrate-Bearing Sand (OTC 19536) Authors: Timothy J. Kneafsey (speaker), Yongkoo Seol, Arvind Gupta, and Liviu Tomutsa Venue: 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 http://www.spe.org and http://www.smenet.org [external sites] Abstract: Methane hydrate was formed in moist sand under confining stress in a long, x-ray transparent pressure vessel. Three initial water saturations were used to form three different methane hydrate saturations. X-ray computed tomography (CT) was used to observe location-specific density changes, caused by hydrate formation and flowing water. Gas permeability was measured in each test for dry sand, moist sand, frozen sand, and hydrate-bearing sand. Results of these measurements are presented. Water was flowed through the hydrate-bearing sand, and the changes in water saturation were observed using CT scanning. Inverse modeling will be performed using these data to extend the relative permeability measurements

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II: Subsurface sequestration of methane-derived carbon in gas-hydrate-bearing marine sediments II: Subsurface sequestration of methane-derived carbon in gas-hydrate-bearing marine sediments HyFlux - Part II: Subsurface sequestration of methane-derived carbon in gas-hydrate-bearing marine sediments Authors: Naehr, T.H., Asper, V., Garcia, O., Kastner, M., Leifer, I., MacDonald, I.R., Solomon, E., Yvon-Lewis, S., and Zimmer, B. Venue: AGU Fall Meeting, San Francisco, CA, December 15-19 2008 -- Session OS25: Methane Flux from Naturally Occurring Marine Gas Hydrates http://www.agu.org Abstract: The recently funded DOE/NETL study "HyFlux: Remote sensing and sea-truth measurements of methane flux to the atmosphere" (see MacDonald et al.: HyFlux - Part I) will combine sea surface, water column and shallow subsurface observations to improve our estimates of methane flux from submarine seeps and associated gas hydrate deposits to the water column and atmosphere along the Gulf of Mexico continental margin and other selected areas world-wide. As methane-rich fluids rise towards the sediment-water interface, they will interact with sulfate-rich pore fluids derived from overlying bottom water, which results in the formation of an important biogeochemical redox boundary, the so-called sulfate-methane interface, or SMI. Both methane and sulfate are consumed within the SMI and dissolved inorganic carbon, mostly bicarbonate (HCO3-) and hydrogen sulfide are produced, stimulating authigenic carbonate precipitation at and immediately below the SMI. Accordingly, the formation of authigenic carbonates in methane- and gas-hydrate-rich sediments will sequester a portion of the methane-derived carbon. To date, however, little is known about the quantitative aspects of these reactions. Rates of DIC production are not well constrained, but recent biogeochemical models indicate that CaCO3 precipitation rates may be as high as 120 µmol cm-2a-1. Therefore, AOM-driven carbonate precipitation must be considered when assessing the impact of gas-hydrate-derived methane on the global carbon cycle.

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Microcontroller with Memory for Extreme Temperature Applications Microcontroller with Memory for Extreme Temperature Applications Microcontroller with Memory for Extreme Temperature Applications Authors: H. M. Soo, C. Hutchens, C. M. Liu, Z. Yuan, S. Velore, J. Gaisler, M. Willett, and V. Madhuravasal Venue: International Conference on High Temperature Electronics (HiTEC 2008), Albuquerque, New Mexico, May 12-15, 2008 (http://www.imaps.org/hitec/exhibitinfo08.htm) Abstract: A 68HC11 microcontroller, a LEON3 processor (code by Gaisler Research), and 4k-SRAM and 2k-ROM with the SPI interface are designed, constructed and tested by MSVLSI design group of Oklahoma State University for extreme temperature applications. 68HC11 microcomputer chip (operating in 275oC at 3 MHz) consists of the microprocessor, ALU, a small boot ROM (512 bytes), 4 kbyte data RAM, counter/timer unit, serial peripheral interface (SPI), asynchronous serial interface (SCI), and the A, B, C, and D parallel ports. The internal Boot ROM triggers CPU to load programs over SPI or SCI into the internal RAM, and it also contains self-test code that help in peripherals and memory diagnostic for proper functionality. The high temperature version of the LEON3 is configured with 1K instruction cache, 1K data cache (SRAM) with tag, 32x32 register file, JTAG, generic APB UART, CAN controller, interrupt controller, timer, LEON3 memory controller, AHB/APB bridge, LEON3 debug support unit, general input/output ports, and can-driver. The LEON3 test results have demonstrated full functionality operating at 18MHz in 200oC environments. The 68HC11 and LEON3 microcontrollers were placed and routed using OSU MSVLSI group’s extreme temperature cell library.

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Field Evaluation of a Surfactant-Modified Zeolite System for Removal of Organics from Produced Water Field Evaluation of a Surfactant-Modified Zeolite System for Removal of Organics from Produced Water Field Evaluation of a Surfactant-Modified Zeolite System for Removal of Organics from Produced Water Authors: Robert S. Bowman, New Mexico Technological University, Socorro, NM; Enid J. Sullivan, Los Alamos National Laboratory, Los Alamos, NM; and Lynn E. Katz and Kerry A. Kinney, University of Texas, Austin, TX. Venue: 44th Annual Meeting of the Clay Minerals Society in Santa Fe, NM, June 3–7, 2007 (http://www.clays.org/home/HomeAnnualMeeting.html [external site]). Abstract: About 2.3 billion cubic meters (600 billion gallons) of wastewater (produced water) is generated each year as a byproduct of oil and gas operations in the continental United States. Disposal of this water represents about 10% of the cost of hydrocarbon production. Inexpensive treatment technologies can lower the cost of disposal and generate higher-quality water for other uses. Surfactant-modified zeolite (SMZ) has been shown to effectively sorb a variety of nonpolar organic compounds from water. SMZ was tested as a medium to remove benzene, toluene, ethylbenzene, and xylenes (BTEX) from produced water generated during extraction of coalbed natural gas. BTEX removal is necessary prior to surface discharge of produced waters or as a pretreatment for reverse osmosis. We demonstrated in laboratory column experiments that BTEX-saturated SMZ is readily regenerated by air sparging. There was no loss in BTEX sorption capacity, and a minor decrease in hydraulic conductivity, after 50 sorption/regeneration cycles. Based upon the laboratory results, a pilot-scale produced-water treatment system was designed and tested at a reinjection facility in the San Juan Basin of New Mexico. The SMZ-based system was designed to treat up to 110 liters (30 gallons) of produced water per hour on a continuous basis by running two SMZ columns in series. The system performed as predicted, based on laboratory results, over repeated feed and regeneration cycles during the month-long operation. The BTEX-laden sparge gases were treated with a vapor-phase bioreactor system, resulting in an emissions-free process

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Decreasing Air Emission Impacts From Oil and Gas Development Decreasing Air Emission Impacts From Oil and Gas Development Decreasing Air Emission Impacts From Oil and Gas Development Authors: Charles B. McComas, PE; J. Daniel Arthur, PE; Gerry Baker; G. Lee Moody; and David B. Cornue, PG, CHMM Venue: American Chemical Society (53rd Pentasectional Meeting) – Halliburton Energy Services Technology Center, Duncan, OK, March 8, 2008 (http://www.acs.org [external site]) Abstract: Research funded by the United States Department of Energy’s National Energy Technology Laboratory and conducted under the direction of the Interstate Oil and Gas Compact Commission has examined concerns related to air emissions resulting from domestic onshore oil and gas exploration and production operations. Current air issues such as ambient air quality standards and non-attainment areas, regulatory compliance and regional inconsistencies, as well as global climate change and carbon sequestration are a few of the subjects perceived to represent potential barriers to energy development. The topic of air quality and how it relates to onshore oil and gas exploration and production activities is examined from the position of environmental sustainability. These concerns can be addressed through reasonable and prudent practices that industry may implement in order to avoid, minimize, or mitigate air emissions. Additionally, air emissions parameters that are not currently regulated (e.g.: CH4 and CO2) may become the subject of increased concern in the future and, therefore, add to the list of issues facing oil and gas exploration and production. Suggestions for further research opportunities with the potential to benefit responsible energy resource development are also presented.

305

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Super-Cement for Annular Seal & Long-Term Integrity in Deep, Hot Wells Super-Cement for Annular Seal & Long-Term Integrity in Deep, Hot Wells Super-Cement for Annular Seal & Long-Term Integrity in Deep, Hot Wells Authors: Fred Sabins, Kevin Edgely, and Larry Watters, CSI Technologies, LLC, Houston, TX. Venue: 2007 Drilling Engineering Association Workshop, Moody Gardens Hotel, Galveston, TX, June 19-20, 2007 (http://www.dea-global.org) [external site]). Abstract: Successful laboratory and field testing of Ultra-Seal® R and Pre-Stressed Cement will be presented. The application of these materials can dramatically reduce the costs of re-establishing annular seal integrity in deep, hot wells, thereby significantly lowering life-cycle well costs. CSI Technologies chose two cement types for further field testing in the third phase of the project to develop a “supercement” for work in high-temperature/high-pressure (HT/HP) wells. HT/HP wells often encounter problems with isolation of production zones due to cement failures. This can result in expensive repair jobs and costly shut-ins of high-volume wells. CSI determined that resin and magnesium oxide cements showed very good mechanical properties and bonding characteristics and are controllable at HT/HP conditions. The resin cement has been used successfully in more than 50 field plugging jobs and in one HT/HP squeeze job. CSI developed a second supercement formulation that is Portland cement- based and functions by generating substantial expansion during the curing process. This material functions in the confined wellbore environment by developing significant cement matrix compressive stress during cure, resulting in a compressive pre-load. In practice, the compressive pre-load functions to elevate the effective tensile strength of the material because the compressive stress must be relieved before the material can experience tensile stress. Additionally, the pre-load functions to keep the material tightly bound to the wellbore tubulars, thereby reducing the tendency of repeated stress cycles to form a microannulus.

306

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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The geomechanical response of Hydrate-Bearing Sediments (HBS) is a serious concern that needs to be addressed before the installation of facilities for hydrate deposits can proceed, and if gas production from hydrate deposits is to become reality. HBS are often unconsolidated, and are characterized by low shear strength. Heat from external sources, that cross the formation or depressurization-based production, can induce dissociation of hydrates (a strong cementing agent), and degradation of the structural stability of the HBS. Changes in pressure and temperature, phase changes, and the evolution of an expanding (and structurally weak) gas zone can significantly alter the distribution of loads in the sediments. The corresponding changes in the local stress and strain fields can result in substantial changes in the hydrologic, thermal and geomechanical properties of the system, displacement, and potentially failure.

307

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation  

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Variation in Long-Term Emissions Data from NSCR-Equipped Natural Gas-Fueled Engine Variation in Long-Term Emissions Data from NSCR-Equipped Natural Gas-Fueled Engine Variation in Long-Term Emissions Data from NSCR-Equipped Natural Gas-Fueled Engine Authors: Kirby S. Chapman (speaker), Mohamed Toema, and Sarah Nuss-Warren, Kansas State University National Gas Machinery Laboratory. Venue: ASME Internal Combustion Engine Division 2009 Spring Technical Conference, May 3–6, Milwaukee, WI. http://www.asmeconferences.org/ICES09/index.cfm [external site]. Abstract: This paper describes work on a project to characterize pollutant emissions performance of non-selective catalytic reduction (NSCR) technology, including a catalyst and air-to-fuel ratio controller (AFRC), applied to four-stroke cycle rich-burn engines. Emissions and engine data were collected semi-continuously with a portable emissions analyzer on three engines in the Four Corners area. In addition, periodic emissions measurements that included ammonia were conducted several times. Data collected from October 2007 through August 2008 show significant variation in emissions levels over hours, days, and longer periods of time, as well as seasonal variation. As a result of these variations, simultaneous control of NOx to below a few hundred parts per million (ppm) and CO to below 1,000 ppm volumetric concentration was not consistently achieved. Instead, the NSCR/AFRC systems were able to simultaneously control both species to these levels for only a fraction of the time the engines were monitored. Both semi-continuous emissions data and periodically collected emissions data support a NOx-CO trade-off and a NOx-ammonia tradeoff in NSCR-equipped engines.

308

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Produced Water Treatment Using Gas Hydrate Formation at the Wellhead Produced Water Treatment Using Gas Hydrate Formation at the Wellhead Produced Water Treatment Using Gas Hydrate Formation at the Wellhead Authors: John and Deidre Boysen Venue: International Petroleum and Biofuels Environmental Conference, November 11-13, 2008, Albuquerque, NM cese@utulsa.edu Abstract: Economic and efficient produced water management is complex. Produced waters contain mixtures of organic and inorganic compounds, including heavy metals. Many of these constituents interfere with treatment processes that are selective for other constituents. Further, the concentrations of organic and inorganic constituents vary widely with location and producing formation. In addition, regulations related to discharge and beneficial uses vary from state to state, basin-to-basin and well location to well location.

309

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Novel Applications for Biogeophysics: Prospects for Detecting Key Subseafloor Geomicrobiological Processes or Habitats Novel Applications for Biogeophysics: Prospects for Detecting Key Subseafloor Geomicrobiological Processes or Habitats Novel Applications for Biogeophysics: Prospects for Detecting Key Subseafloor Geomicrobiological Processes or Habitats Authors: Rick Colwell, Oregon State University, and Dimitris Ntarlagiannis, Rutgers University. Venue: American Geophysical Union’s 2007 Joint Assembly, Acapulco Mexico, May 21-25, 2007 (http://www.agu.org/ [external site]). Abstract: The new subdiscipline of biogeophysics has focused mostly on the geophysical signatures of microbial processes in contaminated subsurface environments usually undergoing remediation. However, the use of biogeophysics to examine the biogeochemistry of marine sediments has not yet been well integrated into conceptual models that describe subseafloor processes. Current examples of geophysical measurements that have been used to detect geomicrobiological processes or infer their location in the seafloor include sound surveillance system (SOSUS)-derived data that detect seafloor eruptive events, deep and shallow cross-sectional seismic surveys that determine the presence of hydraulically conductive zones or gas-bearing sediments (e.g., bottom-simulating reflectors or bubble-rich strata), and thermal profiles. One possible area for innovative biogeophysical characterization of the seafloor involves determining the depth of the sulfate-methane interface (SMI) in locations where sulfate diffuses from the seawater and methane emanates from subsurface strata. The SMI demarcates a stratum where microbially driven anaerobic methane oxidation (AMO) is dependent upon methane as an electron donor and sulfate as an electron acceptor. AMO is carried out by a recently defined, unique consortium of microbes that metabolically temper the flux of methane into the overlying seawater. The depth of the SMI is, respectively, shallow or deep according to whether a high or low rate of methane flux occurs from the deep sediments. Presently, the SMI can only be determined by direct measurements of methane and sulfate concentrations in the interstitial waters or by molecular biological techniques that target the microbes responsible for creating the SMI. Both methods require collection and considerable analysis of sediment samples. Therefore, detection of the SMI by non-destructive methods would be advantageous. As a key biogeochemical threshold in marine sediments, the depth of the SMI defines methane charge in marine sediments, whether it is from dissolved methane or from methane hydrates. As such, a biogeophysical strategy for determining SMI depth would represent an important contribution to assessing methane charge with respect to climate change, sediment stability, or potential energy resources.

310

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Pore-Scale Mechanistic Study of the Preferential Mode of Hydrate Formation in Sediments: Fluid Flow Aspects Pore-Scale Mechanistic Study of the Preferential Mode of Hydrate Formation in Sediments: Fluid Flow Aspects Pore-Scale Mechanistic Study of the Preferential Mode of Hydrate Formation in Sediments: Fluid Flow Aspects Authors: Javad Behseresht, Masa Prodanovic, and Steven Bryant, University of Texas at Austin. Venue: American Geophysical Union fall meeting, San Francisco, CA, December 10-14, 2007 (http://www.agu.org/meetings/fm07/ [external site]). Abstract: A spectrum of behavior is encountered in ocean sediments bearing methane hydrates, ranging from essentially static accumulations where hydrate and brine co-exist, to active cold seeps where hydrate and a methane gas phase co-exist in the hydrate stability zone (HSZ). In this and a companion paper (Jain and Juanes), the researchers describe methods to test the following hypothesis: The coupling between drainage and fracturing, both induced by pore pressure, determines whether methane gas entering the HSZ is converted completely to hydrate. The researchers will describe a novel implementation of the level set method to determine the capillarity-controlled displacement of brine by gas from sediment and from fractures within the sediment. Predictions of fluid configurations in infinite-acting-model sediments indicate that the brine in drained sediment (after invasion by methane gas) is better connected than previously believed. This increases the availability of water and the rate of counter-diffusion of salinity ions, thus relaxing the limit on hydrate build-up within the gas-invaded grain matrix. Simulated drainage of a fracture in sediment shows that points of contact between fracture faces are crucial. They allow residual water saturation to remain within an otherwise gas-filled fracture. Simulations of imbibition—which can occur, for example, after drainage into surrounding sediment reduces gas phase pressure in the fracture—indicate that the gas/water interfaces at contact points significantly shift the threshold pressures for withdrawal of gas. During both drainage and imbibition, the contact points greatly increase water availability for hydrate formation within the fracture. The researchers will discuss coupling this capillarity-controlled displacement model with a discrete element model for grain-scale mechanics. The coupled model provides a basis for evaluating the macroscopic conditions (thickness of gas accumulation below the hydrate stability zone, average sediment grain size, principal earth stresses) favoring co-existence of methane gas and hydrate in the HSZ. Explaining the range of behavior is useful in assessing resource volumes and evaluating pore-to-core scale flow paths in production strategies

311

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Comparing the Depositional Characteristics of the Oil-Shale-Rich Mahogany and R-6 Zones of the Uinta and Piceance Creek Basins Comparing the Depositional Characteristics of the Oil-Shale-Rich Mahogany and R-6 Zones of the Uinta and Piceance Creek Basins Comparing the Depositional Characteristics of the Oil-Shale-Rich Mahogany and R-6 Zones of the Uinta and Piceance Creek Basins Authors: Danielle Lehle and Michael D. Vanden Berg, Utah Geological Survey. Venue: Economic Geology of the Rocky Mountain Region session, May 11, 2009, Geological Society of America-Rocky Mountain Section annual meeting, Orem, Utah, May 11-13, 2009. http://www.geosociety.org/sectdiv/rockymtn/09mtg/index.htm [external site] Abstract: The upper Green River formation’s oil shale deposits located within the Uinta Basin of Utah and the Piceance Creek Basin of Colorado contain remarkably similar stratigraphic sequences despite being separated by the Douglas Creek arch. Individual horizons, as well as individual beds, can be traced for hundreds of miles within and between the two basins. However, changes in the topography-controlled runoff patterns between the basins, as well as changes in localized climate conditions throughout upper Green River time, created significant differences between basin-specific deposits. These variations affected the richness and thickness of each oil shale zone, resulting in basin-specific preferred extraction techniques (i.e., in-situ in Colorado and mining/retort in Utah). Colorado’s oil-shale resource was mapped and quantified by the USGS in the late 1970s, whereas this study is the first attempt at quantifying Utah’s overall resource by specific oil shale horizon. This presentation focuses on the Mahogany zone (MZ) and the stratigraphically lower R-6 zone; subsequent work will define other important horizons.

312

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Drilling Tests of an Active Vibration Damper Drilling Tests of an Active Vibration Damper Drilling Tests of an Active Vibration Damper Authors: Mark Wassell, Martin Cobern, Carl Perry, Jason Barbely, and Daniel Burgess, APS Technology, Inc. Venue: Drilling Engineering Association’s 2007 DEA Workshop in Galveston, TX, June 19-20, 2007 Abstract: Testing of an active drilling vibration damper (AVD) system at TerraTek Laboratory, under conditions designed to induce vibration, demonstrated that the use of the AVD reduced vibration, maintained more consistent weight-on-bit, and increased rate of penetration (ROP). These tests demonstrated that the AVD is likely to provide significant time and cost savings, particularly in deep wells. The results of these tests will be outlined. Related NETL Project: The goal of the related NETL project DE-FC26-02NT41664, “Drilling Vibration Monitoring and Control System,” is to improve ROP and reduce the incidence of premature equipment failures in deep hard rock drilling environments by reducing harmful drillstring vibration.

313

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation  

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

on on Laboratory Testing on Geomechanical Properties of Carbonate Rocks for CO2 Sequestration Authors: Xuejun Zhou (speaker), Zhengwen Zeng, Hong Liu, and Alyssa Boock, University of North Dakota. Venue: 43rd U.S. Rock Mechanics Symposium and 4th U.S.-Canada Rock Mechanics Symposium, Asheville, NC, June 28-July 1, 2009. http://www.armasymposium.org/ [external site] Abstract: The Williston basin of North Dakota is predominated by carbonate successions from Cambrian through Cretaceous, followed by episodic glaciations through Quaternary. Geomechanical characterization of this rock succession is a critical element for understanding the subsurface processes when conducting anthropogenic CO2 sequestration. CO2 sequestration can be divided into two stages. The first is to inject CO2 into the target formation; the second is to keep the injected CO2 in the formation for a designed period of time, e.g., 1,000 years. As rocks behave differently under deep reservoir conditions from how they behave under atmospheric conditions, detailed studies of thermo-hydro-mechanical effects are needed. In this paper, effects of CO2 sequestration on host rock are investigated through combined water-alternative-CO2 injection and tri-axial geomechanical tests. Testing results indicate that rock strength can be decreased significantly after the first stage. In the second stage, which is under static, no-flow conditions, there is no obvious difference in strengths between CO2- and water-saturated rocks. It seems that CO2 saturated rocks even tend to be more competent. This may reveal the different micro-cracking mechanisms caused by different molecular-level properties, such as wettability, etc. Linear Mohr-Coulomb criteria were applied to drained testing results very well but show discrepancies with those of un-drained testing

314

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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De-Watering of Hunton Reservoirs De-Watering of Hunton Reservoirs De-Watering of Hunton Reservoirs Author: Mohan Kelkar, University of Tulsa, Tulsa, OK. Venue: Tulsa Association of Petroleum Landmen meeting in Tulsa, OK, April 19, 2007 (http://www.landman.org [external site]). Abstract: The Hunton reservoir in Oklahoma represents one of the largest discoveries in Oklahoma in recent history. Since 1995, several Hunton reservoir fields have been exploited by various operators. The principle behind this exploitation remains the same: The wells produce large quantities of water, and along with it, significant quantities of natural gas and sometimes oil. Examination of various fields producing from the Hunton reservoir indicates that the economic success from these fields is not uniform. Some fields produce significant quantities of oil, whereas some fields only produce gas. In some fields, horizontal wells work best, whereas in some other fields, vertical wells do a good job. The water production from the fields ranges from as low as few hundred barrels per day to several thousand barrels per day. In this paper, we present the results from various fields to indicate the parameters needed in a Hunton field to make it economically successful. We restrict our evaluation to parameters that can be easily measured or are readily available. These include log data (gamma ray, resistivity, neutron, and density), initial potential data, production data (oil, gas, and water—if available) and well configuration (vertical or horizontal). By analyzing the recovery of oil and gas according to various reservoir parameters, we developed a methodology for predicting the future success of the field. For example, a clear relationship exists between porosity of the rock and initial hydrocarbon saturation: The higher the oil saturation, the better the recovery factor. Initial potential is critical in determining possible recovery. Horizontal wells cost 1.5 to 2 times more than vertical wells and may not provide the additional recovery to justify the costs. The Hunton formation is extensive in Oklahoma. If we want to extend the success of some of the fields to other areas, we need clear guidelines in terms of what is needed to exploit those fields. This paper provides some of those guidelines based on the examination of the currently producing fields.

315

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Hydraulic Fracturing and Sand Control Hydraulic Fracturing and Sand Control Hydraulic Fracturing and Sand Control Author: M. Sharma Venue: Industry Workshop, Austin, Texas, May 7, 2008 (http://www.cpge.utexas.edu) Abstract: The Hydraulic Fracturing and Sand Control project consists of a set of 9 projects (5 related to fracturing and 4 related to sand control) that are currently underway. The project began in 2006 and is planned to continue for at least 2 years (2008). Each member company contributes $50,000 per year as a grant to the University and in return receives all the research results from the projects underway. F1. Energized fractures in tight gas sands/ gas shales (Kyle Freihof, Mukul Sharma) F2. Refracturing and stress reorientation in sands / shales (Vasudev Singh, Nicolas Rousell, Mukul Sharma)

316

NETL: Coal & Coal Biomass to Liquids - Reference Shelf  

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

Fuels Papers Fuels Papers Separation/Production Storage Separation/Production Title Author(s) Abstract Evaluation and Modeling of a High-Temperature, High-Pressure, Hydrogen Separation Membrane for Enhanced Hydrogen Production from the Water-Gas Shift Reaction [PDF-939KB] R. M. Enick, et al. (NETL) Abstract Presented at: ACS Meeting, 1999 The Permeability of Hydrogen in Bulk Palladium at Elevated Temperatures and Pressures [PDF-57KB] B.D. Morreale, et al. (NETL) Abstract Presented in: Journal of Membrane Science, January 2003 Evaluation of Tantalum-Based Material for Hydrogen Separation at Elevated Temperatures and Pressures [PDF-846KB] Kurt S. Rothenberger, et al. (NETL) Abstract Presented in: Journal of Membrane Science, June 2003 Exploring the Kinetics of the Water-Gas Shift Reaction on Inconel 600: A Proof-of-Concept Test [PDF-337KB] F. Bustamante, et al. (NETL) Abstract

317

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Physical properties of sediment from the 2006 National Gas Hydrate Program expedition offshore India Physical properties of sediment from the 2006 National Gas Hydrate Program expedition offshore India Physical properties of sediment from the 2006 National Gas Hydrate Program expedition offshore India Authors: Winters, W.J., (U.S. Geological Survey, speaker), Gomes, M., Giosan, L., Johnson, J., Kastner, M., Torres, M.E., Long, P.E., Schaef, H.T., Rose, K., and the NGHP-01 Shipboard Scientific Party. Venue: India’s Directorate General of Hydrocarbons’ International Conference on Gas Hydrates in Nodia (New Delhi), India, February 6–8, 2008 (http://www.dghindia.org/site/pdfattachments/upcomingevents/Updated_Programme_gAS[1].pdf [PDF-external site]). Abstract: The scientific goals of the NGHP Expedition 01 physical properties program are to a) constrain baseline index properties of host sediment; b) ground-truth well-log, seismic, and other shipboard data sets; c) relate textural characteristics to gas hydrate occurrence and small-scale porous media effects; and d) relate index properties and textural analyses to gas hydrate occurrence and regional sedimentologic interpretations. During the shipboard phase of NGHP-01, baseline bulk physical properties, such as water content, grain density, bulk density, and porosity, were determined on more than 1,800 sediment samples from 14 sites located in four study areas. Overall, physical properties change more significantly near the seafloor, then at a much more gradual rate with depth. The transition depth varies between sites but can range from about 12 to as deep as 200 meters beneath the seafloor. In addition, shear strength, electrical resistivity, magnetic susceptibility, thermal conductivity, and acoustic velocity measurements were conducted to further characterize the sediment. These measurements, when combined with sedimentologic and geochemical studies, delineate the role of the host sediment in hydrate formation and occurrence and are used in modeling the response of hydrate-bearing sediment to natural change or drilling operations. Strong correlation typically exists between physical properties determined from shipboard analyses and well-log studies. More than 500 shore-based grain-size analyses have been conducted that indicate that most sediment is characterized as clayey silt to silty clay with a median grain size that is near or slightly greater than the silt-clay boundary. Grain-size analyses are being conducted on samples identified by infrared imaging as having high concentrations of gas hydrate in recovered core samples. These analyses will be used to study porous-media effects and geologic controls on the occurrence of gas hydrate in situ.

318

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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Morphology, Distribution, and Genesis of Nanometer-Scale Pores in the Mississippian Barnett Shale Morphology, Distribution, and Genesis of Nanometer-Scale Pores in the Mississippian Barnett Shale Morphology, Distribution, and Genesis of Nanometer-Scale Pores in the Mississippian Barnett Shale Authors: R. M. Reed, R. G. Loucks, D. M. Jarvie, and S. C. Ruppel Venue: 2008 American Association of Petroleum Geologists (AAPG) Annual Convention and Exhibition, San Antonio, TX, April 19-24, 2008 oral session chaired by S. C. Ruppel and R. G. Loucks (http://www.aapg.org) Abstract: The Mississippian Barnett Shale from the Fort Worth Basin of Texas predominantly consists of black, clay-mineral-poor, calcareous and siliceous mudstones. Siliceous mudstones from two wells have been examined to characterize pores. A few primarily intragranular micropores >500 nm in diameter are present but they are isolated and numerically insignificant. Nanometer-scale pores (nanopores) are the dominant pore type. Use of Ar-ion-beam milling provides surfaces without topography related to differential hardness, which are suitable for examination of nanopores. Nanopores are primarily found in three locales within the samples. Carbonaceous grains host the majority of nanopores with many of these grains containing hundreds. Other nanopores are found in bedding-parallel wisps of largely organic matrix material. The remaining, less common, nanopore locale is within extremely fine-grained matrix areas not associated with organic material. Intragranular nanopores tend to be larger, and less regularly shaped than intergranular nanopores; which tend to be more elliptical to elongate, smaller, and less complexly shaped. At least two distinct morphologies of nanopores have formed in carbonaceous grains. In one type, nanopores are more elliptical and do not have a clear distribution pattern. In the other, nanopores are more rectilinear and form parallel linear arrays. This latter pattern may be controlled by original structure in the grains. Median pore diameters vary from grain to grain, but a typical diameter is ~100 nm. Intragranular porosities up to 20.15% have been measured. All intragranular nanopores in carbonaceous grains may result from devolatilization of the organic material during hydrocarbon maturation

319

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation  

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

A Grain-Scale Coupled Model of Multiphase Fluid Flow and Sediment Mechanics A Grain-Scale Coupled Model of Multiphase Fluid Flow and Sediment Mechanics A Grain-Scale Coupled Model of Multiphase Fluid Flow and Sediment Mechanics – Application to Methane Hydrates in Natural Systems Authors: Antone K. Jain and Ruben Juanes Venue: American Geophysical Union Fall Meeting, San Francisco, CA, December 15-19, 2008 – Special Session H06: Particle Tracking Simulation of Fluid Flow and Mass Transport. http://www.agu.org/meetings/fm08/ Abstract: A discrete element model is presented for the simulation, at the grain scale, of gas migration in brine-saturated deformable media. The model rigorously accounts for the presence of two fluids in the pore space by incorporating grain forces due to pore fluid pressures, and surface tension between fluids. The coupled model permits investigating an essential process that takes place at the base of the hydrate stability zone: the upward migration of methane in its own free gas phase. The ways in which gas migration may take place were elucidated: (1) by capillary invasion in a rigid-like medium; and (2) by initiation and propagation of a fracture. Results indicate that the main factor controlling the mode of gas transport in the sediment is the grain size, and that coarse-grain sediments favor capillary invasion, whereas fracturing dominates in fine-grain media. The results have important implications for understanding hydrates in natural systems. The results predict that, in fine sediments, hydrate will likely form in veins that follow a fracture-network pattern, and the hydrate concentration in this type of accumulations will likely be quite low. In coarse sediments, the buoyant methane gas is likely to invade the pore space more uniformly, in a process akin to invasion percolation, and the overall pore occupancy is likely to be much higher than for a fracture-dominated regime. These implications are consistent with field observations of methane hydrates in natural

320

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Gas-hydrate concentration and uncertainty estimation from electrical resistivity logs: examples from Green Canyon, Gulf of Mexico Gas-hydrate concentration and uncertainty estimation from electrical resistivity logs: examples from Green Canyon, Gulf of Mexico Carbon isotope evidence (13C and 14C) for fossil methane-derived dissolved organic carbon from gas hydrate-bearing cold seeps Authors: Pohlman, J.W. (speaker), Coffin, R.B., and Osburn, C.L., U.S. Naval Research Laboratory, Washington, D.C.; Bauer, J.E., College of William & Mary, Williamsburg, VA; Venue: Goldschmidt 2007 Atoms to Planets conference in Cologne, Germany, August 19-24, 2007 http://www.the-conference.com/conferences/2007/gold2007/ [external site]. Abstract: No abstract available yet. Related NETL Project: The proposed research of the related NETL project DE-AI26-05NT42496, “Conducting Scientific Studies of Natural Gas Hydrates to Support the DOE Efforts to Evaluate and Understand Methane Hydrates,” is to conduct scientific studies of natural gas hydrates to support DOE efforts to evaluate and understand methane hydrates, their potential as an energy resource, and the hazard they may pose to ongoing drilling efforts. This project

Note: This page contains sample records for the topic "nw shelf abo" from the National Library of EnergyBeta (NLEBeta).
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321

Retail Shelf-life Characteristics of Dry-aged Beef  

E-Print Network (OSTI)

lighting to simulate a mock retail case for five days, and a trained panel visually evaluated the lean color, fat color, and off-odor. Microbial samples were taken from each wholesale cut, as well as, subsequent steaks and were analyzed for aerobic plate...

Ulbrich, Carson

2010-07-14T23:59:59.000Z

322

Building off-the-shelf tissue-engineered composites  

Science Journals Connector (OSTI)

...form within the gel are multi-layered, unlike the...micro-encapsulated multi-cellular tumour spheroids...technical considerations in building functional tissues or...The thermal inkjet family of printers, in contrast...We have focused on building a toolbox of techniques...

2010-01-01T23:59:59.000Z

323

Who stocks the shelf? : an analysis of retail replenishment strategies  

E-Print Network (OSTI)

The objective of this thesis is to analyze the trade-offs of two retail replenishment strategies, DSD (Direct Store Delivery) model and Traditional model. Conceptual and cost models are set up to analyze the trade-offs, ...

Kuai, Jiaqi

2007-01-01T23:59:59.000Z

324

Holocene dynamics of the Arctic's largest ice shelf  

Science Journals Connector (OSTI)

...24 . 27 Johnsen SF ( 2001 ) Oxygen isotope and paleotemperature records from six Greenland ice-core stations: Camp Century, Dye-3, GRIP, GISP2, Renland and NorthGRIP . J Quat Sci 16 : 299 307 . 28 Trees CC Clarke DK Bidigare RR Ondrusek ME Mueller...

Dermot Antoniades; Pierre Francus; Reinhard Pienitz; Guillaume St-Onge; Warwick F. Vincent

2011-01-01T23:59:59.000Z

325

Trophic interactions within the Ross Sea continental shelf ecosystem  

Science Journals Connector (OSTI)

...important as sources of iron that fuel surface phytoplankton blooms...sea ice present, cryophilic algae in the Ross Sea are an important...annual, integrated basis ice algae contribute approximately 20...The temporal dynamics of ice algae are quite different compared...

2007-01-01T23:59:59.000Z

326

Late Quaternary geotechnical stratigraphy of North Texas continental shelf  

E-Print Network (OSTI)

-sections were constructed to define local trends in the geotechnical parameters. Due to the regional scope of this 1nvestigation the distances between adjacent borings 1n any particular cross-section were considerably greater than the1r depths of penetrat1on.... Geotechnical units were divided into granular and cohesive sediments. The boundaries of a cohesive sedimentary unit were determined by either an abrupt change 1n texture (gra1n-s1ze) or a considerable variation in any of the relevant geotechni cal...

Munsey, John Sal

2012-06-07T23:59:59.000Z

327

Mixing in seasonally stratified shelf seas: a shifting paradigm  

Science Journals Connector (OSTI)

...tidal mixing front an energy balance is achieved...water-column potential energy is being reduced...barotropic tidal mixing efficiency, gamma0.0037...how inefficient the energy lost to turbulence...hand mixer to mix a swimming pool!), and, with...

2005-01-01T23:59:59.000Z

328

Blended Shelf: Reality-based Presentation and Exploration of Library  

E-Print Network (OSTI)

% of the collection is located in closed stacks and only available to users if they order the items through the Online Public Access Catalog (OPAC). While it is still possible to access most items­ with latency between order environment. Browsing through open and systematically ordered stacks offers many advantages for library users

Reiterer, Harald

329

Commercial off the shelf (COTS) software in safety systems  

SciTech Connect

Many safety systems, such as those in nuclear power plants, are systems for which the consequences of failure can be severe or catastrophic. These systems must be developed, implemented, and maintained in ways that provide assurance that catastrophic consequences will be prevented. This paper discusses various aspects of the question of using commercially available software in these systems. Risk, grading, and system assessment are discussed, and relevant standards are summarized. Recommendations for addressing key issues are given.

Scott, J.A.; Preckshot, G.G.

1998-01-25T23:59:59.000Z

330

Coccoliths in the surface sediments of the Louisiana continental shelf  

E-Print Network (OSTI)

in the presence of an inhibitor such as carbonic anhydrase. This may be involved in the regulation of the carbon dioxide complex at the site of coccolith formation. Types of Coccoliths Braarud et al. (1955) introduced the terminology of coccolith types based...

Reimers, David Dean

1972-01-01T23:59:59.000Z

331

Gas exploration and oceanography beyond the shelf break  

E-Print Network (OSTI)

for Computational Science, University of Bergen, Norway 3 Norsk Hydro, Oil & Energy, Research Center, Bergen, Norway , G. Furnes3 1 Department of Mathematics, University of Bergen, Norway 2 UNIFOB, Bergen Center Introduction The second largest gas field in Norway, Ormen Lange, is located approximately 120 km off mid-Norway

Thiem, ?yvind

332

The Aftermath of Apollo: Science on the Shelf?  

Science Journals Connector (OSTI)

...kept in a pristine state. Thus the cost of...notes. The unsettled state of this collection...is in the same raw state as the sample collection...coast, north through Micronesia, east to the Oregon Territory, and home again after...

Robert Gillette

1972-12-22T23:59:59.000Z

333

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Mechanical strength and seismic property measurements of hydrate-bearing sediments Mechanical strength and seismic property measurements of hydrate-bearing sediments Mechanical strength and seismic property measurements of hydrate-bearing sediments (HBS) during hydrate formation and loading tests (OTC 19559) Authors: Seiji Nakagawa (speaker), Timothy J. Kneafsey, and George J. Moridis Venue: 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 http://www.spe.org and http://www.smenet.org [external sites] Abstract: An on-going effort on conducting laboratory triaxial compression tests on synthetic methane hydrate-bearing sediment cores is presented. Methane hydrate is formed within a sand pack inside a test cell under controlled temperature and confining stress, and triaxial compression tests are performed while monitoring seismic properties. A unique aspect of the experiment is that the formation and dissociation of hydrate in a sediment core, and the failure of the sample during loading tests, can be monitored in real time using both seismic waves and x-ray CT imaging. For this purpose, a specially designed triaxial (geomechanical) test cell was built. This cell allows for conducting seismic wave measurements on a sediment core using compressional and shear (torsion) waves. Concurrently, CT images can be obtained through an x-ray-transparent cell wall. These are used to determine the porosity distribution within a sample owing to both original sand packing and formation of hydrate in the pore space. For interpreting the results from both seismic measurements and geomechanical tests, characterization of sample heterogeneity can be critically important. In this paper, the basic functions of the test cell are presented, with the results of preliminary experiments using non-hydrate bearing sandpack and sandstone core. These measurements confirmed that (1) clear x-ray images of gas-fluid boundaries within a sediment/rock core can be obtained through a thick aluminum test cell wall, (2) the test cell functions correctly during loading tests, and (3) both compressional and shear waves can be measured during a loading test. Further experiments using methane-hydrate-bearing samples will be presented at the conference

334

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Characterization of Nonequilibrium Sorption of Gasoline Components by Surfactant-Modified Zeolite Characterization of Nonequilibrium Sorption of Gasoline Components by Surfactant-Modified Zeolite Characterization of Nonequilibrium Sorption of Gasoline Components by Surfactant-Modified Zeolite Authors: Joshua A. Simpson and Robert S. Bowman, New Mexico Technological University, Socorro, NM Venue: 44th Annual Meeting of the Clay Minerals Society in Santa Fe, NM, June 3–7, 2007 (http://www.clays.org/home/HomeAnnualMeeting.html [external site]). Abstract: Surfactant-modified zeolite (SMZ) has been shown to effectively remove benzene, toluene, ethylbenzene, and xylene (BTEX) from water generated during oil and natural gas production (produced water). The BTEX sorption isotherms are linear and noncompetitive, suggesting that the removal mechanism is partitioning into the surfactant’s hydrophobic bilayer formed on SMZ. Even though BTEX sorption in batch systems is rapid, chemical equilibrium models do not accurately describe BTEX transport through packed beds of SMZ. Comparison with transport of a nonreactive tracer (tritium) suggests that two-site, diffusive nonequilibrium sorption-desorption controls BTEX transport. We conducted batch experiments with SMZ to determine the nonequilibrium sorption kinetics of each BTEX constituent. The kinetic measurements were used to parameterize a nonequilibrium transport model to predict BTEX removal under varying flow conditions. The accuracy of predictions is being tested using laboratory column experiments with produced water from the San Juan Basin of New Mexico

335

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Reactive transport modeling of oceanic gas hydrate instability and dissociation in response to climate change Reactive transport modeling of oceanic gas hydrate instability and dissociation in response to climate change Reactive transport modeling of oceanic gas hydrate instability and dissociation in response to climate change Authors: Matthew T. Reagan and George J. Moridis Venue: 6th International Conference on Gas Hydrates 2008, Vancouver, British Columbia, July 9-12, 2008 (http://www.icgh.org [external site]) Abstract: Paleoceanographic evidence has been used to postulate that methane from oceanic hydrates may have had a significant role in regulating past global climate. The implication is that global oceanic deposits of methane gas hydrate is the main culprit for a sequence of rapid global warming affects that occurred during the late Quaternary period. However, the behavior of contemporary oceanic methane hydrate deposits subjected to rapid temperature changes, like those predicted under future climate change scenarios, is poorly understood. To determine the fate of the carbon stored in these hydrates, we performed coupled thermo-hydrological-chemical simulations of oceanic gas hydrate accumulations subjected to temperature changes at the seafloor, and assessed the potential for methane release into the ecosystem. Our modeling analysis considered the properties of benthic sediments, the saturation and distribution of the hydrates, the ocean depth, the initial seafloor temperature, and the effects of benthic biogeochemical activity. The results show that while many deep hydrate deposits are indeed stable during periods of rapid ocean temperature changes, shallow deposits (such as those found in arctic regions or in the Gulf of Mexico) can undergo rapid dissociation and produce significant carbon fluxes over a period of decades. These fluxes may exceed the ability of the seafloor environment (via anaerobic oxidation of methane and the formation of carbonates) to sequester the released carbon. This model will provide a source term to regional or global climate models in order to assess the coupling of gas hydrate deposits to changes in the global climate.

336

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on  

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

Differences in Nanopore Development Related to Thermal Maturity in the Mississippian Barnett Shale Differences in Nanopore Development Related to Thermal Maturity in the Mississippian Barnett Shale Differences in Nanopore Development Related to Thermal Maturity in the Mississippian Barnett Shale: Preliminary Results Authors: Robert M. Reed, Robert G. Loucks, Daniel M. Jarvie, and Stephen C. Ruppel Venue: Geological Society of America Annual Meeting in Houston, Texas October 5-9, 2008. http://www.geosociety.org/ [external site]. Abstract: The Mississippian Barnett Shale from the Fort Worth Basin of north-central Texas consists predominantly of dark-colored calcareous and siliceous mudstones. Siliceous mudstones from a range of thermal maturities and burial depths have been examined in order to characterize pores, particularly nanometer-scale pores. Ar-ion-beam milling provides a low-relief surface lacking both topography related to differential hardness and surface damage that occur with mechanical polishing. SEM imaging of ion-milled surfaces allows unambiguous identification of pores down to the nanometer scale.

337

Carbonate depositional environments and facies of the shelf margin and outer shelf, Lower Cretaceous Sligo Formation, south Texas  

E-Print Network (OSTI)

(undifferentiated( GLEN ROSE STUART CITY PE ARSALL lundifferentiatedl SLIGO H AYNESV ILLE lu 0 0 I IL 0 0 IK Ia I- 2 E I- D 0 III O C I- K 0 Figure 3. Generalized stratigraphic cross section for the Lower Cretaceous in south Texas. lf4odified... of skeletal and oolitic grainstones and lagoonal wacke- stones. Both Amsbury ( 1974) and Bebout noted that faunal diversity increases both down-dip and upward in the section. Achauer ( 1977) compared porosity preservation in the Glen Rose Formation...

Kirkland, Brenda Lee

2012-06-07T23:59:59.000Z

338

Bioaccumulation of mercury in pelagic fishes in NW Gulf of Mexico  

E-Print Network (OSTI)

Total mercury (Hg) levels were determined in the tissues of ten taxa of pelagic fishes, with a special emphasis on apex predators (large vertebrates). Highest Hg levels were observed in blue marlin (Makaira nigricans), carcharhinid sharks (Genus...

Cai, Yan

2006-08-16T23:59:59.000Z

339

1828 L Street, N.W. Washington, D.C. 20036  

E-Print Network (OSTI)

reducing mining operations WTE Provides Clean Energy ­ WTE technology has significantly advanced of municipal solid waste (MSW), also called Waste to Energy (WTE). Proven Technology - WTE is a proven-recycling MSW. WTE technology is used extensively in Europe and other developed nations in Asia such as Russia

Columbia University

340

Structure of a Classic Chalk Oil Field and Production Enhancement by Horizontal Drilling, Reitbrook, NW Germany  

Science Journals Connector (OSTI)

Above the top of the Reitbrook salt diapir, Hamburg, highly faulted and fractured Chalk (Maastrichtian-Upper Cretaceous) occurs in an almost circular dome. Halokinesis of the Zechstein salt started in Late Tri...

J. Schmitz; F. Flixeder

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

K&L GATES LLP 1601 K STREET, N.W.  

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

percent. 12 U.S. ENERGY INFORMATION ADMINISTRATION, REVIEW OF EMERGING RESOURCES: U.S. SHALE GAS AND SHALE OIL PLAYS (2011), available at http:www.eia.govanalysisstudies...

342

K&L GATES LLP 1601 K STREET, N.W.  

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

11 U.S. ENERGY INFORMATION ADMINISTRATION, REVIEW OF EMERGING RESOURCES: U.S. SHALE GAS AND SHALE OIL PLAYS (2011), available at http:www.eia.govanalysisstudies...

343

K&L GATES LLP 1601 K STREET, N.W.  

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

July 17, 2014). 10 U.S. ENERGY INFO. ADMIN., Review of Emerging Resources: U.S. Shale Gas and Shale Oil Plays (2011). 8 DC-9824999 v1 No person shall export any natural gas...

344

Palaeomagnetism of the Silurian Lipen formation, NW Argentina, and the Gondwana apparent polar wander path  

Science Journals Connector (OSTI)

......The Andes of Chile and Argentina, inGeology of the Andes...Pacific Council for Energy and Mineral Resources...Revista Asoc. Geol. Argentina, 5, 4, 169-203...Pacific Council for Energy and Mineral Resources...Revista Asoc. Geol. Argentina. 5, 4, 169-203......

C. M. Conti; A. E. Rapalini; J. F. Vilas

1995-06-01T23:59:59.000Z

345

Water column signatures of the NW German backbarrier tidal flats: Sources and processes  

E-Print Network (OSTI)

be neglected when performing elemental mass-balance calculations on the Wadden Sea environment. Reference: [1

Oldenburg, Carl von Ossietzky Universität

346

Holocene glacial rebound and sea-level change in NW Europe  

Science Journals Connector (OSTI)

......possible from this data. For the Helgoland Bight sites the thick lithosphere models also...Sea-level changes in the North Sea basin, in The Quaternary History of the North...the Netherlands and adjacent North Sea basin, in Earth Rheology, Isostasy and Eustasy......

Kurt Lambeck; Paul Johnston; Masao Nakada

1990-11-01T23:59:59.000Z

347

E-Print Network 3.0 - arousa nw spain Sample Search Results  

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

on Nutrient and Phytoplankton Dynamics in a Shallow Estuary After Summary: Kingdom (Wash, Thames estuary, Horecambe and Caenarfon bays), in Spain (Galice, Mediterranean coast......

348

Structural constraints on the exhumation of the Tso Morari Dome, NW Himalaya  

E-Print Network (OSTI)

The Tso Morari culmination in the Ladakh region of northwest India is a large (>3,000 km) structural dome cored by coesite-bearing rocks of Indian continental crustal affinity. As one of only two localities in the Himalaya ...

Clark, Ryan J

2005-01-01T23:59:59.000Z

349

Palaeomagnetism of the Silurian Lipen formation, NW Argentina, and the Gondwana apparent polar wander path  

Science Journals Connector (OSTI)

......different localities. Detailed thermal demagnetization has permitted...complexes from the Bayucla Desert, Sudan-new constraints on the apparent...different localities. Detailed thermal demagnetization has permitted...complexes from the Bayuda Desert, Sudan-new constraints on the apparent......

C. M. Conti; A. E. Rapalini; J. F. Vilas

1995-06-01T23:59:59.000Z

350

Dating the onset of volcanism at the Rum Igneous Centre, NW Scotland  

Science Journals Connector (OSTI)

...laser at the maximum power range. Irradiations were carried out in the 5 MW research reactor at the GKSS Research Centre (Geesthacht, Germany), with crystals in aluminium trays and cans (no Cd liner). The 40Ar/39Ar laser analyses were performed at...

VALENTIN R. TROLL; GRAEME R. NICOLL; COLIN H. DONALDSON; HENRY C. EMELEUS

351

NW Michigan Regional Fruit Grower Newsletter -Late March 2009 CALENDER OF EVENTS  

E-Print Network (OSTI)

City 3/30-31 Michigan Agri-Energy Conference Radisson Plaza Hotel, Kalamazoo www.agenergy.org 4/1 Water Collection Traverse City 5/1 First Grape IPM Update 5/1 Antique Apple & Pear Pruning Workshop Schmidt to all independent producers, farmers, agricultural producer groups and other agricultural business

352

NW Michigan Regional Fruit Grower Newsletter -January 2011 CALENDAR OF EVENTS  

E-Print Network (OSTI)

Show Grand Traverse Resort & Spa 1/19 Finding Local Food Resources: An Open House http/16 Farm Safety & Labor Management Sessions NWMHRS 3/23 Finding Local Food Resources: An Open House http manage all aspects of a 10-acre certified organic farm, including passive solar greenhouses used for year

353

The biostratigraphy, palaeoecology and geochemistry of a long lacustrine sequence from NW Greece  

E-Print Network (OSTI)

of this Study 5 1.4.1 The Last Interglacial 5 1.4.2 The Last Glacial - Holocene Transition 5 1.5 Organisation of this Report 6 1.6 Conventions 7 2. PHYSICAL SETTING 2.1 Study Site 9 2.2 Regional Geology 9 2.3 Basin Evolution 13 2.4 Climate 15 2.5 Basin... III excursion 90 504.10 Emperor excursion 92 504.11 Big Lost excursion 92 5.5 Amino Acid Epimerization Data 93 5.6 Uranium-Series Dating 95 5.7 Tephra 97 5.8 Summary and Proposed Age Model 99 FAUNAL BIOSTRATIGRAPHY AND MODERN ASSEMBLAGES 6...

Frogley, Michael Reginald

354

E-Print Network 3.0 - area nw china Sample Search Results  

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

of this material is permitted. However, permission to reprintrepublish this material for advertising or promotional purposes or for creating new collective works for resale or...

355

E-Print Network 3.0 - areas nw china Sample Search Results  

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

of this material is permitted. However, permission to reprintrepublish this material for advertising or promotional purposes or for creating new collective works for resale or...

356

Norrby_TAMU.dvi  

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

S and 40 Ca M. Norrby Department of Physics, Abo Akademi University, 20500 Turku, Finland email: mnorrby@abo.fi The three nuclei 32 S, 34 S and 40 Ca have been examined with...

357

E-Print Network 3.0 - area karelian isthmus Sample Search Results  

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

Littorina Sea transgressions based on stratigraphic studies in coastal lakes of NW Russia Summary: Sweden; IN - Ingermanland area, NW Russia; KA - Karelian Isthmus, NW Russia....

358

A Late Devensian Lateglacial palaeomagnetic record from Llyn Gwernan, North Wales: comparison with other NW European records  

Science Journals Connector (OSTI)

......Widdowson (1975). The specimens were step-wise demagnetized within a low direct field...kindly provided by Richard Gillespie, Alison Fowler, Andrew Haggart, Stephen Lowe...also Drs Tim Atkinson, John Dearing, Alison Fowler, Robert Hedges, Barbara Maher......

T. J. F. Austin; J. J. Lowe

1989-12-01T23:59:59.000Z

359

2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4 www.ucalgary.ca Seymour Schulich --Biography  

E-Print Network (OSTI)

last three years he served as president. In 1978, Schulich pioneered the concept of royalty payments in the mining industry and created two gold royalty companies, Euro-Nevada and Franco-Nevada in partnership Corporation, his team developed it into the largest royalty resource company in the world. In 2002, Franco

Calgary, University of

360

Holocene versus modern catchment erosion rates at 300 MW Baspa II hydroelectric power plant (India, NW Himalaya)  

E-Print Network (OSTI)

Holocene versus modern catchment erosion rates at 300 MW Baspa II hydroelectric power plant (India private hydroelectric facility, located at the Baspa River which is an important left-hand tributary

Bookhagen, Bodo

Note: This page contains sample records for the topic "nw shelf abo" 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

Comparing modern and Pleistocene ENSO-like influences in NW Argentina using nonlinear time series analysis methods  

E-Print Network (OSTI)

Higher variability in rainfall and river discharge could be of major importance in landslide generation in the north-western Argentine Andes. Annual layered (varved) deposits of a landslide dammed lake in the Santa Maria Basin (26 deg S, 66 deg W) with an age of 30,000 14C years provide an archive of precipitation variability during this time. The comparison of these data with present-day rainfall observations tests the hypothesis that increased rainfall variability played a major role in landslide generation. A potential cause of such variability is the El Nino/Southern Oscillation (ENSO). The causal link between ENSO and local rainfall is quantified by using a new method of nonlinear data analysis, the quantitative analysis of cross recurrence plots (CRP). This method seeks similarities in the dynamics of two different processes, such as an ocean-atmosphere oscillation and local rainfall. Our analysis reveals significant similarities in the statistics of both modern and palaeo-precipitation data. The similarities in the data suggest that an ENSO-like influence on local rainfall was present at around 30,000 14C years ago. Increased rainfall, which was inferred from a lake balance modeling in a previous study, together with ENSO-like cyclicities could help to explain the clustering of landslides at around 30,000 14C years ago.

N. Marwan; M. H. Trauth; M. Vuille; J. Kurths

2003-03-24T23:59:59.000Z

362

Rural household energy consumption and its implications for eco-environments in NW China: A case study  

Science Journals Connector (OSTI)

Abstract Rural household energy consumption plays an essential role in the daily life of farmers, especially in developing regions. In this paper, we present a study of household energy consumption in terms of energy sources and energy end uses, and analysis of technical and economic issues associated with the use of biomass and renewable energy and the replacement of fossil fuels. Results show that energy from biomass represents the largest share of total energy supply, and that 41.15% of total energy is consumed for home heating and cooking. The average cost of household energy is 1259 RMB ($US193.6) and this expense is no longer subsidized by the government. It takes less than one year to make a solar stove profitable and less than two years to pay back the household cost of biogas digesters. An 8m3 digester can produce as much energy as 500550kg of standard coal or 940kg of firewood, while a solar stove can generate 1.76נ103MJ heat each year. Moreover, it is estimated that in rural China the annual reduction of CO2 and SO2 emissions in 2020, due to the replacement of fossil fuel by biomass, will be 68.86נ106 and 54.37נ104 tons, respectively. Overall, the investigations and analyses have revealed that the structure of rural household energy consumption is undergoing a transformation from traditional low-efficiency biomass domination to integrated consumption of traditional and renewable energies. Renewable energy will significantly contribute to the sustainable development of rural households.

Hewen Niu; Yuanqing He; Umberto Desideri; Peidong Zhang; Hongyi Qin; Shijin Wang

2014-01-01T23:59:59.000Z

363

Potential for CO2 Sequestration and Enhanced Coalbed Methane Production, Blue Creek Field, NW Black Warrior Basin, Alabama  

E-Print Network (OSTI)

Carbon dioxide (CO2) is a primary source of greenhouse gases. Injection of CO2 from power plants near coalbed reservoirs is a win-win method to reducing emissions of CO2 to the atmosphere. Limited studies have investigated CO2 sequestration...

He, Ting

2011-02-22T23:59:59.000Z

364

U.S. ARMY CORPS OF ENGINEERS DIRECTORATE OF HUMAN RESOURCES 441 G Street, NW, Washington, DC 20314-1000  

E-Print Network (OSTI)

touchstones to guide the Profession through time, contingency, and transition. These essential characteristics, webinars, Facebook updates, USACE internet and intranet pages, and incorporating as topic in training

US Army Corps of Engineers

365

Petrogenetic implications of the mineral-chemical characteristics of scheelite and associated phases from Miniki Gol (Chitral), NW Pakistan  

Science Journals Connector (OSTI)

The stratabound tungsten mineralization in Chitral, northern Pakistan, lies within the Hindu Kush terrane and is located to the north-west of the Main Karakoram Thrust (MKT) that represents the suture zone bet...

Mohammad Zahid; Mohammad Arif; Charlie J. Moon

2013-12-01T23:59:59.000Z

366

Late Miocene to Early Pliocene depositional history of the intramontane FlorinaPtolemaisServia Basin, NW Greece  

E-Print Network (OSTI)

and lignites or clays, which were shown to be primarily related to precession-induced climate variations ([van in a lacustrine environment, frequently interrupted by deposition of clays and local xylite-type lignite seams lignites), with episodic periods of sub-aerial exposure continued until 5.23 Ma. From then onwards up to 3

Utrecht, Universiteit

367

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on the  

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

the Performance of Class 2 and Class 3 Hydrate Deposits during Co-Production with Conventional Gas the Performance of Class 2 and Class 3 Hydrate Deposits during Co-Production with Conventional Gas The Performance of Class 2 and Class 3 Hydrate Deposits during Co-Production with Conventional Gas (OTC 19435) Authors: George J. Moridis (speaker), Matthew T. Reagan, and Keni Zhang Venue: 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 ( http://www.spe.org and http://www.smenet.org [external sites] ) Abstract: Recent numerical studies have provided strong indications that it is possible to produce large volumes of gas from natural hydrate deposits at high rates (in excess of 10 MMSCFD) for long times by depressurization-induced dissociation of hydrates. Of the various factors that can adversely affect the production potential of hydrates, low temperatures have one of the strongest negative impacts. These can be caused by low initial temperatures, increasing stability of the hydrate (as defined by the deviation between the temperature of the deposit and the equilibrium temperature at the reservoir pressure), and by an advanced stage of dissociation (a strongly endothermic reaction) when substantial amounts of hydrates remain. The reasons for the production decline include a reduction in the rate of the hydrate dissociation at lower temperatures and the evolution of flow restrictions in the vicinity of the well caused by the formation of hydrate and/or ice in the vicinity of the wellbore. The latter is caused by continuous cooling, and is the reason why large amounts of gas that may have been released in the reservoir in the course of earlier dissociation cannot be easily recovered.

368

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on Gas  

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

Gas Hydrate Research and Stratigraphic Test Results, Milne Point Unit, Alaska North Slope Gas Hydrate Research and Stratigraphic Test Results, Milne Point Unit, Alaska North Slope Gas Hydrate Research and Stratigraphic Test Results, Milne Point Unit, Alaska North Slope Authors: Robert Hunter (ASRC Energy), Scott Digert (BPXA), Tim Collett (USGS), Ray Boswell (USDOE) Venue: AAPG National Meeting Gas Hydrate session, Oral Presentation, San Antonio, TX, April 22, 2008 (http://www.AAPG.org [external site]) Abstract: This BP-DOE collaborative research project is helping determine whether or not gas hydrate can become a technically and economically recoverable gas resource. Reservoir characterization, development modeling, and associated studies indicate that 0-0.34 trillion cubic meters (TCM) gas may be technically recoverable from the estimated 0.92 TCM gas-in-place within the Eileen gas hydrate accumulation on the Alaska North Slope (ANS). Reservoir modeling indicates sufficient potential for technical recovery to justify proceeding into field operations to acquire basic reservoir and fluid data from the Mount Elbert gas hydrate prospect in the Milne Point Unit (MPU). Successful drilling and data acquisition in the Mount Elbert-01 stratigraphic test well was completed during February 3-19, 2007. Data was acquired from 131 meters of core (30.5 meters gas hydrate-bearing), extensive wireline logging, and wireline production testing operations using Modular Dynamics Testing (MDT). The stratigraphic test validated the 3D seismic interpretation of the MPU gas hydrate-bearing Mount Elbert prospect. Onsite core sub- sampling preserved samples for later analyses of interstitial water geochemistry, physical properties, thermal properties, organic geochemistry, petrophysics, and mechanical properties. MDT testing was accomplished within two gas hydrate-bearing intervals, and acquired during four long shut-in period tests. Four gas samples and one pre-gas hydrate dissociation formation water sample were collected. MDT analyses are helping to improve understanding of gas hydrate dissociation, gas production, formation cooling, and long-term production potential as well as help calibrate reservoir simulation models.

369

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on CO2  

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

CO2 Sequestration Potential of the North Michigan Silurian Reef CO2 Sequestration Potential of the North Michigan Silurian Reef CO2 Sequestration Potential of the North Michigan Silurian Reef Authors: Brian Toelle, Chaoqing Yang (speaker), and Tracee Imai, Schlumberger Ltd. Venue: Eastern Section of the American Association of Petroleum Geologists 2007 Annual Meeting, Lexington, KY, September 16–18, 2007 (http://www.uky.edu/KGS/esaapg07/ [external site]). Abstract: The Northern Silurian Reef trend of the Michigan Basin was developed within the stratigraphic unit historically referred to as the Niagaran Brown. Within the past few years this unit was renamed the Guelph Formation. Over 700 reefs make up this trend, with some of these being over 300 acres in size and having produced more than 5 million barrels of oil. Estimates of the total amount of hydrocarbons produced for the entire trend have been reported to be as much as nearly a half a billion barrels. The U.S. Department of Energy has funded a study of an ongoing enhanced oil recovery project being conducted on a reef within this trend and entailing CO2 injection. The Charlton 30/31 reef, located in Otsego County, MI, like many other reefs in the play, was discovered and developed during the 1970s and 1980s. This field has completed its primary production phase, during which six wells produced 2.6 million of the field’s estimated 7 million barrels of oil in place. This reservoir is characterized as a low-porosity, low-permeability limestone matrix with irregular dolomitized intervals providing a secondary network of higher porosity and permeability, which controls fluid flow throughout the reservoir. The estimated average porosity in this reef is just slightly over 6 percent. As part of this study, the reservoir attributes identified at the Charlton 30/31 reef were extended to the entire Northern Reef Trend in order to determine its CO2 sequestration capacity. Additionally, the potential oil recovery has been estimated.

370

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on Gas  

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

Hydrate Energy resource Studies in the United States Hydrate Energy resource Studies in the United States Gas Hydrate Energy resource Studies in the United States Authors: T.Collett (USGS), R. Boswell (DOE), K. Rose (DOE), W. Agena (USGS), and R. Baker (DOE) Venue: American Chemical Society Meeting, March 22-26, 2009, Salt Lake City, Utah http://portal.acs.org/portal/acs/corg/content?_nfpb=true&_pageLabel=PP_MEETINGS&node_id=86&use_sec=false&__uuid=614acbfd-ce1c-4a0b-98de-348a14738f4e [external site] Abstract: In 1982, scientists onboard the Research Vessel Glomar Challenger retrieved a meter-long sample of massive gas hydrate off the coast of Guatemala. This sample became the impetus for the first United States national research and development program dedicated to gas hydrates. By the mid 1990s, it was widely accepted that gas hydrates represented a vast storehouse of gas. Recognizing the importance of gas hydrate research and the need for coordinated efforts, Congress and the President of the United States enacted Public Law 106-193, the Methane Hydrate Research and Development Act of 2000. Authorization for this program was extended to 2010 as part of the Energy Policy Act of 2005. Many of the current gas hydrate projects in the United States are conducted within this program, which is administered by the U. S. Department of Energy in collaboration with six other U.S. federal agencies, and conducted in partnership with private industry, academic institutions, and DOE’s National Laboratories. In addition, other U.S. federal agencies conduct significant self-directed gas hydrate research; most notably the gas hydrate resource assessment activities conducted by U.S. Department of Interior agencies (the U.S. Geological Survey and the Minerals Management Service).

371

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on The  

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

Devonian Woodford Formation of the Permian Basin Devonian Woodford Formation of the Permian Basin The Devonian Woodford Formation of the Permian Basin: Complex Depositional and Temporal Variations Across an Anaerobic Marine Basin Authors: S. C. Ruppel and R. G. Loucks Venue: 2008 American Association of Petroleum Geologists (AAPG) Annual Convention and Exhibition, San Antonio, TX, April 19-24, 2008 “The Geology of Mudrocks”, session chaired by S. C. Ruppel and R. G. Loucks (http://www.aapg.org) Abstract: The Woodford Formation, a key oil and gas source rock in the Permian Basin of Texas and New Mexico, is part of an extensive, platform marginal, organic-rich, mudrock succession that formed along the southern and western margins of Laurussia during the Devonian and Mississippian. Studies of >35 Woodford cores reveal wide variability in facies, organic content, and mineralogy that can be related to age and paleogeographic setting. Woodford facies include silt-rich mudstones (detrital silica), siliceous mudstones (biogenic silica), calcareous mudstones, and claystones. Recent studies show that facies are partitioned between two temporally distinct successions: a Middle Devonian silt- and carbonate-rich section that is irregularly distributed across the basin, and an Upper Devonian siliceous claystone/mudstone section that is widespread and separated from underlying successions by a significant hiatus. All Woodford rocks contain mixtures of illite, kaolinite, chlorite, and mixed layer clays; total clay and chlorite abundance is lowest in distal Upper Devonian rocks. Although silica content is variable, Upper Devonian mudrocks typically contain more abundant biogenic silica, especially in distal parts of the basin, whereas Middle Devonian rocks are dominated by detrital silica. The two successions display consistent differences in depositional facies. The silt-rich Middle Devonian section is cross-laminated, locally graded, and commonly bioturbated. Upper Devonian mudrocks, by contrast, are dominated by fine-scale, parallel laminations and show no evidence of infaunal activity. These rocks also contain common conodonts, radiolarians, spore bodies, and deep-water brachiopods. The data suggest that the lower Woodford was deposited by deep water, turbid flow, whereas the upper Woodford accumulated under more distal, low energy, poorly oxygenated, hemipelagic conditions

372

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on Gas  

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

Gas and Oil in Utah: Potential, New Discoveries, and Hot Plays Gas and Oil in Utah: Potential, New Discoveries, and Hot Plays Gas and Oil in Utah: Potential, New Discoveries, and Hot Plays Author: Thomas C. Chidsey, Petroleum Section Chief, Utah Geological Survey, Salt Lake City, UT. Venue: International Oil Scouts Association’s 84th annual meeting, Stein Eriksen Lodge, Park City, UT, June 17–20, 2007, (http://www.oilscouts.com/index-main.html [external site]). Abstract: Utah’s natural gas and oil exploration history extends back more than 100 years, fluctuating greatly due to discoveries, price trends, and changing exploration targets. During the boom period of the early 1980s, activity peaked at over 500 wells per year. After slowing in the 1990s, drilling activity has again increased, reaching an all-time peak of 1,058 wells spudded and over 2,000 APDs (application for permit to drill) filed in 2006. This increase in activity has been spurred by high prices for both natural gas and oil and by the perception that Utah is highly prospective and underexplored. In recent years, the proportion of new wells exploring for gas has increased greatly. Total cumulative natural gas production from Utah fields now exceeds 8 Tcf. Recent successful drilling has been expanding reserves by about 10 percent per year, one of the highest rates of gas reserves increase in the country. Although gas production from some fields declined during the late 1990s, two factors caused overall gas production to increase. The development of coalbed natural gas (CBNG) accumulations in the Cretaceous Ferron Sandstone play, in particular Drunkards Wash field in central Utah, has increased the State’s annual gas production by 20–30 percent. Also, deeper exploratory and development drilling in the eastern and southern Uinta Basin during the past 5 years has led to discoveries of substantial gas accumulations in tight-sand reservoirs of the Tertiary Wasatch Formation, Cretaceous Mesaverde Group, and Jurassic Entrada and Wingate Sandstones. Significant potential exists for other coalfields (Book Cliffs, Sego, and Wasatch Plateau) around the Uinta Basin to yield CBNG, and the extent of deeper conventional and tight-gas plays remains to be explored. In addition, shale gas reservoirs in the Mississippian Manning Canyon Shale, Pennsylvanian Hermosa Group, and Cretaceous Mancos Shale of central, southeastern, and northeastern Utah, respectively, have tremendous untapped potential. Utah oilfields have produced a cumulative total of 1.3 billion barrels (bbl) of oil. Although annual production decreased from a peak of 41 million bbl in 1985 to 13 million bbl in 2003, the trend has since reversed, and 2005 production reached nearly 17 million bbl. A component (about one-third of the increase) of this turnaround has been the 2004 discovery of Covenant field in the central Utah thrust belt, or "Hingeline." This new field has already produced 3 million bbl of Mississippian-sourced oil from the Jurassic Navajo Sandstone in a thrusted anticline formed during the Sevier orogeny. This new oil play is the focus of extensive leasing and exploration activity—comparable to the late 1970s and early 1980s in the Utah-Wyoming salient of the thrust belt to the north.

373

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on The  

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The Use of Epifluorescence Techniques The Use of Epifluorescence Techniques The Use of Epifluorescence Techniques to Determine Potential Oil-Prone Areas in the Mississippian Leadville Limestone, Northern Paradox Basin, Utah Authors: David E. Eby, Thomas C. Chidsey, Jr., and Craig D. Morgan Venue: Rocky Mountain Section AAPG Conference, Colorado Convention Center, July 9-11, 2008, http://www.aapg.org/ Abstract: Potential oil-prone areas for the Mississippian Leadville Limestone were identified in the northern Paradox Basin (Paradox fold and fault belt), Utah, based on hydrocarbon shows using low-cost epifluorescence techniques. The trapping mechanisms for Leadville producing fields are usually anticlines bounded by large, basement-involved normal faults. Epifluorescence microscopy is a technique used to provide information on diagenesis, pore types, and organic matter (including “live” hydrocarbons) within sedimentary rocks. It is a rapid, non-destructive procedure that uses a petrographic microscope equipped with reflected-light capabilities, a Hg-vapor light, and appropriate filtering.

374

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on Low  

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

Low Temperature X-ray Diffraction Study of Natural Gas Hydrate Samples from the Gulf of Mexico Low Temperature X-ray Diffraction Study of Natural Gas Hydrate Samples from the Gulf of Mexico Low Temperature X-ray Diffraction Study of Natural Gas Hydrate Samples from the Gulf of Mexico Authors: C.J. Rawn, R. Sassen, S.M. Ulrich, E.A. Payzant, B.C. Chakoumakos, and T.J. Phelps Venue: 6th International Conference on Gas Hydrates, Fairmont Hotel, Vancouver, Canada July 6-10, 2008. http://www.icgh.org/ [external site]. Abstract: Clathrate hydrates of methane and other small alkanes occur widespread as terrestrial components in marine sediments of the continental margins and in permafrost sediments of the arctic. Quantitative study of natural clathrate hydrates is hampered by the difficulty in obtaining pristine samples, particularly from submarine environments. Bringing samples of clathrate hydrate from the seafloor at depths without compromising their integrity is not trivial. Most physical property measurements are based on studies of laboratory-synthesized samples. Here we report x-ray powder diffraction measurements of a natural gas hydrate sample from the Green Canyon, Gulf of Mexico (GOM). The first data were collected in 2002 and revealed ice and structure II gas hydrate. In the subsequent time the sample has been stored in liquid nitrogen. Recently new x-ray powder diffraction data have been collected as a function of temperature. Rietveld refinements on this new data show that there is approximately 50 wt % gas hydrate with structure type II and 50% ice at -140, -130, -115, -100, and -85oC. The Rietveld refinements on the data sets collected at -70 and -55oC show the amount of structure type II hydrate decreasing to approximately 40% and 37%, respectively. The Rietveld refinement of the data set collected at -40oC shows a sharp decrease in the amount of structure type II hydrate to approximately 9%. Rietveld refinements on the data sets collected at -25 and -10oC indicated that the structure type II hydrate is still present at 7 and 3%, respectively

375

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on The  

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

Barnett Shale of the Southern Fort Worth Basin Barnett Shale of the Southern Fort Worth Basin The Barnett Shale of the Southern Fort Worth Basin; Comparison of Depositional Setting, Lithofacies, and Mineralogy with Equivalent Deposits in the Northern Basin Authors: R. G. Loucks and S. C. Ruppel Venue: 2008 American Association of Petroleum Geologists (AAPG) Annual Convention and Exhibition, San Antonio, TX, April 19-24, 2008 (http://www.aapg.org) Abstract: Ongoing studies of outcrops and more than 30 subsurface cores from the Barnett Shale along the southern margin of the Fort Worth Basin (FWB) show both similarities and differences from the better known deposits of the northern part of the basin. Like deposits in the north, southern FWB strata consist predominately of in situ argillaceous siliceous mudstone and thinner beds of calcareous mudstone. In both areas, transported gravity-flow deposits, composed of thin-shelled mollusks are common; crinoid-bearing debris beds are found primarily in the south. Carbonate concretions, phosphatic layers, and diagenetic pyrite are common to both areas. Earlier studies of the northern FWB provided strong evidence that the rocks in this area accumulated in a deeper water basin that was dominantly anoxic. Similar conditions are indicated for the southern FWB, although the presence of a crinoid-rich shallow-water fauna and local bioturbation suggest that this area may have been closer to the basin margin. Bioturbation is commonly located beneath event beds, suggesting gravity-flow transport of shallow-water fauna into deeper water, setting up “doomed pioneer” assemblages. The thickness of the Barnett Shale is generally less in the southern FWB than in the north and thickens to the northeast and east (range: 0 – 160 ft). Mineralogical analysis reveals that silica and clay content in the southern FWB are significantly different from the north (32% and 26% versus 21% and 49%, respectively). Total Organic Content(TOC) is similar in both areas, but maturity is substantially lower in the south (average 0.5% Ro)

376

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on a  

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

a Unified Imaging Procedure for 2-D Land Multichannel Seismic Data a Unified Imaging Procedure for 2-D Land Multichannel Seismic Data Towards a Unified Imaging Procedure for 2-D Land Multichannel Seismic Data Authors: Jaiswal, Priyank, Zelt, C.A., Rice University, and Dasgupta, R., Oil India Limited Venue: 70th EAGE Conference and Exhibition, Rome, Italy, June 11-14, 2008 (http://www.eage.org/events/index.php?eventid=57&Opendivs=s2 [external site). Abstract: This project demonstrates that imaging of 2-D multichannel seismic data can be effectively accomplished by a combination of travel-time inversion and pre-stack depth migration (PSDM); this combined method is referred to as unified imaging. Unified imaging begins with inversion of direct arrivals for estimating a velocity model that is used in static corrections and stacking velocity analysis. The interval velocity model (from stacking velocities) is used for PSDM. The stacked data and the PSDM image are interpreted for common horizons and the corresponding wide-aperture reflections are identified in the shot gathers. Using the interval velocity model the stack interpretations are inverted as zero-offset reflections for constraining the corresponding interfaces in depth; the interval velocity model is maintained stationary. A coefficient of congruence, j, is defined which measures the discrepancy between the horizons from the PSDM image and their counterparts from the zero-offset inversion. A value of unity for j implies that the interpreted and inverted horizons are consistent to within the interpretational uncertainties and the unified imaging is said to have converged at this point. For j greater than unity, the interval velocity model and the horizon depths are updated by jointly inverting the direct arrivals with the zero-offset and the wide-aperture reflections. The updated interval velocity model is used again for both PSDM and zero-offset inversion. Interpretations of the new PSDM image are the updated horizons depths. The unified imaging is applied to seismic data from the Naga Thrust and Fold Belt, India. Wide-aperture and zero-offset data from three geologically significant horizons are used. Three runs of joint inversion and PSDM are required in a cyclic manner for j to converge to unity. A joint interpretation of the final velocity model and the final depth image reveal the presence of a triangle zone that appears to be promising for exploration.

377

Organic Carbon Cycling in East China Sea Shelf Sediments: Linkages with Hypoxia  

E-Print Network (OSTI)

-Phenols ............................................................................................. 80 3.3.4 Plant Pigments .............................................................................................. 87 3.3.5 PCA and Cluster Analysis ............................................................................ 88 3.4 Discussion...). Lambda-8 (?8), defined as the total weight in milligrams of the sum of V, S, and C phenols, normalized to 100 mg of OC, has been commonly used as an index of LOP concentrations (Hedges and Parker 1976). ?6, which does not have the C LOPs included, can...

Li, Xinxin

2013-01-03T23:59:59.000Z

378

Shelf Space & Reading Room - A Spatial History of the New York Public Library.  

E-Print Network (OSTI)

??The New York Public Library's Central Building, constructed just over a century ago, is in the midst of a major renovation. The Library's trustees have (more)

Hunniford, Andrea

2014-01-01T23:59:59.000Z

379

Small Satellite Applications of Commercial off the Shelf Radio Frequency Integrated Circuits  

E-Print Network (OSTI)

such as L-3 communications offer high performance military class systems [24]. Other developers such as Comtech AeroAstro and Surrey are offering smaller systems compatible with the NASA and government networks that have rates in the Megabit range [25, 26... offered by SpaceQuest, AeroAstro, Surrey, or other organizations [34, 25, 26]. These systems can provide over 1 Megabit/sec of downlink capability to a spacecraft. Any program with sufficient resources can buy modules of this type that are space...

Graves, John

2012-02-14T23:59:59.000Z

380

Fish population and behavior revealed by instantaneous continental-shelf scale imaging  

E-Print Network (OSTI)

The application of a technique to instantaneously image and continuously monitor the abundance, spatial distribution, and behavior of fish populations over thousands of square kilometers using Ocean Acoustic Waveguide ...

Symonds, Deanelle T

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

Instruments and Methods New technique for access-borehole drilling in shelf glaciers using  

E-Print Network (OSTI)

is penetration through hours for penetration through 200 m of ice, (2) installation of sensors up to 120 mm in diameter and (3 require lightweight, rapid-rate drilling equipment and a low logistical burden. A small drilling team

Howat, Ian M.

382

Coastal Trapped Waves Generated By Hurricane Andrew on the Texas-Louisiana Shelf  

E-Print Network (OSTI)

, 1964]. Shortly after, variable wind stress in the alongshore wind component was revealed as being the dominant generating mechanism, over atmospheric pressure perturbations [Adams and Buch- wald , 1969]. Gill and Schumann [1974] created a model... on the western coast of Australia traveling 5?7 m/s with amplitudes of 1?2 m possibly in resonance with southward traveling tropic cyclones. Grimshaw [1988] extended Gill and Shumann?s [1974] model by allowing a Kelvin response, using the full wind stress...

Pearce, Stuart

2012-02-14T23:59:59.000Z

383

Phosphorus limitation in the Mississippi River Plume (MRP) and Louisiana shelf (LS) during May 1992  

E-Print Network (OSTI)

and the dissolved N/P are, nevertheless, the most frequently cited evidence for N-limitation in the MRP and LS region. Large rivers can significantly affect to biological processes in the coastal zone and some polluted rivers now carry dissolved phosphorus loads...

Kim, Jin-Seok

1996-01-01T23:59:59.000Z

384

Seismic stratigraphy and quaternary evolution of the New York Bight Inner Continental Shelf  

E-Print Network (OSTI)

Approximately 5,300 km of digitally recorded high-resolution, nested, single-channel, seismic-refection data (2.46 m watergun, 200-500 Hz Geopulse acoustic source, and a CHIRP 2-7 kHz subbottom profiler) and coincident sidescan-sonar data collected...

Lotto, Linda L

2012-06-07T23:59:59.000Z

385

Modeling water column structure and suspended particulate matter on the Middle Atlantic continental shelf  

E-Print Network (OSTI)

that contributed to the evolution of observed thermal structure and resuspension of particulate matter during resuspension processes. It is concluded that wave-current bottom shear stress was clearly the most important process for sediment resuspension during and following both hurricanes. Discrepancies between modeled

Chang, Grace C.

386

Spatial and temporal variability of absorption by dissolved material at a continental shelf  

E-Print Network (OSTI)

. The storms were associated with sediment resuspension events and were accompanied by an increase during sediment resuspension events. 1. Introduction Colored dissolved organic material (CDOM) absorption

Boss, Emmanuel S.

387

Holocene Reef Development Along the Northeastern St. Croix Shelf, Buck Island, U.S. Virgin Islands  

Science Journals Connector (OSTI)

...decline in coral cover on the world's reefs, with fundamental questions being asked about the mechanisms that are...Lang Bank to the east. Power is supplied from a 21 hp diesel engine and hydraulic pump on the pontoon barge floating above...

Dennis K. Hubbard; Heinrich Zankl; Ivor Van Heerden; Ivan P. Gill

388

U.S. Geological Survey Core Drilling on the Atlantic Shelf  

Science Journals Connector (OSTI)

...gradient occurs in the low-permeability clay in the upper part of...74-76), the ground-water reservoir would require more than 30...complicated by the relatively high permeability of cavernous lime-stone...matter in Miocene and Oligocene rocks (Fig. 6). Alkalinity can...

John C. Hathaway; C. Wylie Poag; Page C. Valentine; Frank T. Manheim; Francis A. Kohout; Michael H. Bothner; Robert E. Miller; David M. Schultz; Dwight A. Sangrey

1979-11-02T23:59:59.000Z

389

Drilling, Tankers, and Oil Spills on the Atlantic Outer Continental Shelf  

Science Journals Connector (OSTI)

...cargo is to be carried on the opment and return trip, seawater is pumped into carsources. go tanks for ballast. It, too...the oil is discharged coast. Toth together with the seawater. will offset The dangers of transporting oil from petroleum...

William B. Travers; Percy R. Lune

1976-11-19T23:59:59.000Z

390

Diagenetic history of Missourian (Upper Pennsylvanian) Chanute Shale, Cherokee Shelf, midcontinent U. S. A  

SciTech Connect

The Chanute (Ch) Shale consists of two sandstone bodies deposited in fluvial deltaic complexes separated by a shale unit and a coal. The lower Ch is characterized by very fine-to-medium-grained sandstone that fill channels at its base, while the upper Ch includes silt-to-fine-grained sandstone bodies. Petrographic analyses of both units show that they consist of quartz arenites, subarkose, sublitharenite, feldspathic litharenites, litharenites and wackes of the same compositions. Silica-supersaturated waters in the meteoric regime cemented the Ch sands creating thin and discontinuous overgrowths on detrital quartz grains. Early calcite cement precipitated afterwards, inhibiting further silica cementation and shielding feldspars and other liable grains from extensive dissolution. A change in the composition of the meteoric waters caused calcite dissolution leaving patches of cement. As Ch sands entered the compactional regime, saline and alkaline waters dissolved quartz grains and overgrowths as well as other liable grains no longer shielded by the early carbonate cement. The absence of cements and continued compaction resulted in concave-convex and sutured contacts. Dissolution and alteration of feldspars, alteration of micas to clays, and chloritization of biotite and clays continued in the compactional regime. Acidified waters released from organic matter and coal altered micas and feldspars to kaolinite and other clays, releasing Fe, Mg, and Ca necessary for late precipitation of ankerite, dolomite, and calcite cements. Extensive clay and Fe oxide coatings formed, filling embayments on the etched grains. During subsequent Pennsylvanian low sea level stands, ground water dissolved most carbonate cements, creating secondary porosity. Porosity was further enhanced on the outcrop belt during weathering, leaving higher total Fe oxide content on surface samples compared to core samples.

Fernandez, S.; Brenner, R.L. (Univ. of Iowa, Iowa City, IA (United States). Dept. of Geology)

1992-01-01T23:59:59.000Z

391

Impact on acoustic propagation by internal waves and tides in the region of shelf and slope.  

Science Journals Connector (OSTI)

Internal waves (IWS) and tidal activities were investigated in the South China Sea (SCS) and the northeastern seas of Taiwan. These oceanic processes cause large fluctuations and impact on underwater acoustic propagation. These effects include two?dimensional (2?D) and three?dimensional (3?D) effects. The 2?D and 3?D effects are related to the angle between the directions of sound propagation and IW front. When the IW front are from 20 to 90 deg with respect to the acoustic propagation direction acoustic mode coupling is the dominant factor which could be sufficiently predicted by the N2D simulations. Acoustic energy is exchanged between modes and is re?distributed among the water columns. However when the angles between the wave front and the acoustic wave propagation are 020 deg the horizontal refraction effect dominates over mode coupling and the fully 3?D calculation is needed. The acoustic energy would be refracted as a consequence resulting in energy focusing and defocusing. These effects are clearly seen by the series of data collected in the SCS and the region of Northern East of Taiwan. Computer modeling results are used to manifest experiment data results in this research. [This work is supported by National Science Council of Taiwan.

Chi?Fang Chen; Yung?Sheng Linus Chiu; Yuan?Ying Chang

2009-01-01T23:59:59.000Z

392

Effects of scattering and resonance on energy dissipation of an internal tide in a narrow shelf  

Science Journals Connector (OSTI)

The effects of scattering and resonance on the energy dissipation of an internal tide were investigated using a two-dimensional model...et al. (1969) for internal tide. The basic character of the scattering proce...

Yuji Kawamura; Yujiro Kitade

2007-02-01T23:59:59.000Z

393

Aspects of the Physical Control of Phytoplankton Dynamics over the Southern California Bight Continental Shelf  

E-Print Network (OSTI)

2.6 Internal tide energy ?ux . . . . . . . . .ix Internal tide energy and nitrate ?uxes. Panels a and bthe peak internal tide energy. Figure 2.10: HFIW dissipation

Lucas, Andrew J.

2009-01-01T23:59:59.000Z

394

Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions...  

Energy Savers (EERE)

More Documents & Publications Demonstration and Performance Monitoring of Foundation Heat Exchangers in Low Load, High Performance Research Homes Building America...

395

Nutritional profile, carcass composition, and shelf-life of fresh ostrich meat  

E-Print Network (OSTI)

placed on a forage based diet prior to slaughter. PHASE I Pure-bred and cross-bred ostriches, ranging in age from 10 to 11 months at slaughter, had a mean live weight, hot carcass weight, and dressing percentage of 99.7 kg, 48.8 kg, and 49.1...

Pollok, Kevin Duane

1998-01-01T23:59:59.000Z

396

Shipping and nitrogen toning effects on postharvest shelf life of vegetative annuals  

E-Print Network (OSTI)

using 1- methylcyclopropene (1-MCP) an ethylene inhibitor. The effects of shipping duration and temperature were investigated. 1-MCP was found to hold flowers on treated plants longer postharvest than those not treated. Plants shipped for one day had...

Beach, Shannon Elizabeth

2006-10-30T23:59:59.000Z

397

Studies on harpacticoid copepod populations of two transects across the south Texas outer continental shelf  

E-Print Network (OSTI)

. , xipodopapi'. lus spp. ) at two offshore stat1ons indi- cated t, hat the standard sed1ment analysis procedure that wa ' used probably is not approprial:e for deter;, iining the effective sediirent tex- ture with respect to the meiofauna, Thc large number... re provided by the United Stat s Geological Survey, working independently but. concurrently (Berryhi11, 1976, l977a), In tiie fo'ilowing description of ihe I;ey ervironmental parameters of the study area, much information is drawn from the pub...

Venn, Cynthia

2012-06-07T23:59:59.000Z

398

Horizontal internal-tide fluxes supportelevated phytoplankton productivity overthe inner continental shelf  

E-Print Network (OSTI)

along a nitrate and salinity gradient in a coastal aquifer.Processing [16] Vertical salinity gradients were weak duringgradients could exceed 0.5 8C m 21 , causing significant salinity

Lucas, Andrew

2014-01-01T23:59:59.000Z

399

Estuarine, Coastal and Shelf Science (1997) 45, 285-302 Transects for Charact  

E-Print Network (OSTI)

of spatial variability include the longitudinal salinity gradient along the continuum between the estuarine quality variables (chlorophyll a, suspended particulate matter and salinity) in San Francisco Bay; spatial structure; water quality; chlorophyll distribution; suspended particulate matter; salinity

400

Deep-Sea Research II 53 (2006) 29562984 Numerical model simulations of continental shelf flows off  

E-Print Network (OSTI)

structure that appears just north of Bodega Bay and shows the offshore jet strengthening to the south. We with realistic topography and initial stratification in a limited-area domain with a high-resolution grid eddy-like recirculation feature offshore of Pt. Arena prior to the upwelling event causes large patches

Pierce, Stephen

Note: This page contains sample records for the topic "nw shelf abo" 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

Origin and distribution of sand types, northeastern U.S. Atlantic continental shelf  

E-Print Network (OSTI)

). These sedimentary rocks consist largely of consolidated terrestrial red beds (mostly sandstone, siltstone, and conglomerate) originally deposited in alluvial fan, fluvial, lacustrine, and swamp environments (Klein, 1962; Schafer and Hartshorn, 1965; Weed et al...). These sedimentary rocks consist largely of consolidated terrestrial red beds (mostly sandstone, siltstone, and conglomerate) originally deposited in alluvial fan, fluvial, lacustrine, and swamp environments (Klein, 1962; Schafer and Hartshorn, 1965; Weed et al...

Leschak, Pamela

2012-06-07T23:59:59.000Z

402

Shelf life of five meat products displayed under light emitting diode or fluorescent lighting.  

E-Print Network (OSTI)

??Light emitting diode (LED) and fluorescent (FLS) lighting effects on enhanced pork loin chops, beef longissimus dorsi and semimembranosus steaks, ground beef, and ground turkey (more)

Steele, Kyle Stover

2011-01-01T23:59:59.000Z

403

Sensors and Actuators A 111 (2004) 7986 Water-activated disposable and long shelf life microbatteries  

E-Print Network (OSTI)

]. Others have investigated the possibility of fabricating low cost and high capacity solar cells [5 of Mechanical Engineering, University of California at Berkeley, 1113 Etcheverry Hall, Berkeley, CA 94720 and the maximum operation capacity has been demonstrated to be more than 1.86 mWh when an electrode area of 12 mm

Lin, Liwei

404

Late Jurassic rifting along the Australian North West Shelf: margin geometry and spreading ridge  

E-Print Network (OSTI)

of Geosciences, University of Sydney, NSW 2006, Australia. The Argo and Gascoyne Abyssal plains have revisited the marine magnetic anomaly record of the Argo and Gascoyne Abyssal Plains ­ M22A, in the Gascoyne Abyssal Plain, northwest of the Exmouth Plateau. The magnetic anomalies have

Müller, Dietmar

405

Continental Shelf Research 24 (2004) 10531082 Sub-seasonal to interannual variations of sea surface  

E-Print Network (OSTI)

of spatio-temporal variations of all parameters is observed in a relatively small basin; these variations Monica Bay (SMB) is a semi-enclosed bay within the Southern California Bight (SCB) (Fig. 1). The bottom

Gruber, Nicolas

406

Nutrient exchange and ventilation of benthic gases across the continental shelf break  

E-Print Network (OSTI)

2011; published 28 June 2011. [1] On western margins of ocean basins, such as the eastern continental Current and winds in the Southeast Brazil Bight. Castelao et al. [2004] modeled the int

Mahadevan, Amala

407

Benthic nutrient regeneration and high rate of primary production in continental shelf waters (reply)  

Science Journals Connector (OSTI)

... bottom regeneration is important. Also we have had the opportunity of studying the New York Bight, the area from which our original data were obtained, on two more recent occasions6 ... on KNORR cruise 68 in August, 1977.) In a silty clay of the Christiaensen Basin we measured a regeneration rate of 24mgNm2d1 (ref. 6), whereas in the coarse ...

G. T. ROWE

1978-07-13T23:59:59.000Z

408

Biodiversity, Community Structural Shifts, and Biogeography of Prokaryotes within Antarctic Continental Shelf Sediment  

Science Journals Connector (OSTI)

...methane seep Guaymas Basin, Mexico 2,000 73 8...seasonally mixed, marine basin Vestfold Hills, Antarctica...research was supported by Australian Research Council large...coastal meromictic marine basin, Vestfold Hills, Eastern...bacteria from the German Bight and their seasonal contributions...

John P. Bowman; Robert D. McCuaig

2003-05-01T23:59:59.000Z

409

Epibenthic invertebrates and fishes of the continental shelf of the northwestern Gulf of Mexico  

E-Print Network (OSTI)

of species and depth. Biomass and diversity were not statistically significant between nearshore and offshore. A relatively high number of species were collected from the northwestern Gulf of Mexico compared with the northeastern Gulf; in addition...

Al-Jabr, Abdulrahman Mohammad

2012-06-07T23:59:59.000Z

410

Hot water decontamination of beef carcasses to increase microbiological safety and shelf-life  

E-Print Network (OSTI)

). The spraying system functioned by circulating hot water from the water bath to the spray gun at a given pressure and temperature. The pressure was constantly monitored by a pressure gauge (Marshall Town 88901, USA) installed in the valve junction.... The temperature m the water bath was monitored by a digital thermometer (Tegam 871, Digital Thermometer) with a type K thermocouple sensor. Also, the temperature of the spray coming out of the jet was measured with a thermocouple inserted and sealed in the tip...

Barakate, Michelle Lee

2012-06-07T23:59:59.000Z

411

Analysis of tidal current observations over the northeastern shelf of the Gulf of Mexico  

E-Print Network (OSTI)

of the controlling fac- tors of the currents in this area, mainly the wind and the tide (Boston, 1964), have been studied only briefly. This thesis is concerned with (a) the task of obtaining direct field measurements of the current by employing a taut-line buoy...

Durham, Donald L

1967-01-01T23:59:59.000Z

412

Dissolved Organic Matter Cycling on the Louisiana Shelf: Implications for the Formation of Hypoxia  

E-Print Network (OSTI)

................................................................................................... ix LIST OF TABLES .................................................................................................... x CHAPTER I INTRODUCTION ............................................................................... 1 1... .................................. 16 4 DON and Nitrate+Nitrite Pearson Correlation at Stations in August 2010......... 19 5 (A) Pearson product moment correlations (p<0.05) between DFAA and bulk parameters at three stations...

Shen, Li

2012-02-14T23:59:59.000Z

413

Spectral particulate attenuation and particle size distribution in the bottom boundary layer of a continental shelf  

E-Print Network (OSTI)

are consistent with particle resuspension and settling in the BBL, two processes that are dependent on particle size and density. For particles of similar density, resuspension and settling would result

Boss, Emmanuel S.

414

Substrate Moisture Content Effects on Growth and Shelf Life of Angelonia angustifolia  

E-Print Network (OSTI)

plants to non-lethal dry down cycles throughout production, has been shown to improve moisture stress tolerance during production through reductions in transpirational water loss (Eakes et al., 1991). Imposing MSC until visible wilt during production... the growing medium was greater in MSC plants compared to the control plants (Eakes et al., 1991). Overall, MSC plants were able to acclimate to the lower moisture levels by stomatal changes and better regulation of transpiration compared to control plants...

Bingham, Alison

2012-07-16T23:59:59.000Z

415

Delphinid spatial distribution and abundance estimates over the shelf of the Bay of Biscay  

E-Print Network (OSTI)

of Biscay. ­ ICES Journal of Marine Science, 65. The small delphinid community (bottlenose Tursiops- transect aerial surveys conducted between 2001 and 2004 and ship-based surveys conducted between 2003 hotspots located in the north and the south of the bay. Using ship-based data, we found strong spatial

Boyer, Edmond

416

Seismic reflection studies of the Amery Ice Shelf, East Antarctica: delineating meteoric and marine ice  

Science Journals Connector (OSTI)

......These were placed in 30 cm deep holes to keep them out of the wind and snow drift, and were spaced up to 10 cm apart, in the...profiling near Grassy Island, Wyandotte Unit of Shiawassee National Wildlife Refuge, Wyandotte, Michigan. USGS Administrative Completion......

Kathleen L. McMahon; Mark A. Lackie

2006-08-01T23:59:59.000Z

417

Seismic reflection studies of the Amery Ice Shelf, East Antarctica: delineating meteoric and marine ice  

Science Journals Connector (OSTI)

......important role in the global climate system (Allison...studies of the impact of global warming on present-day ice shelves...the subsequent effect on global ocean circulation and...graben, where Permian coal-bearing, flat lying......

Kathleen L. McMahon; Mark A. Lackie

2006-08-01T23:59:59.000Z

418

Aspects of the physical control of phytoplankton dynamics over the Southern California Bight continental shelf  

E-Print Network (OSTI)

powered autonomous profiler uses the surface wind-wave fieldautonomous profiler, developed at SIO by R. Pinkel and colleagues, uses the surface wind-

Lucas, Andrew J.

2009-01-01T23:59:59.000Z

419

Aspects of the Physical Control of Phytoplankton Dynamics over the Southern California Bight Continental Shelf  

E-Print Network (OSTI)

powered autonomous pro?ler uses the surface wind-wave ?eldautonomous pro?ler, developed at SIO by R. Pinkel and colleagues, uses the surface wind-

Lucas, Andrew J.

2009-01-01T23:59:59.000Z

420

Lipids in suspended matter and sediments from the East China Sea Shelf  

E-Print Network (OSTI)

between 1.82 and 3.74 (average 2.81), reflecting higher contributions of the more refractory higher plant to the south along the coast, and the other part with low salinity extends offshore toward the northeast). Offshore transport is hindered by tidal currents and by the northward movement of the Taiwan Warm Water

Huh, Chih-An

Note: This page contains sample records for the topic "nw shelf abo" 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

Microbial Community Diversity Associated with Carbon and Nitrogen Cycling in Permeable Shelf Sediments  

Science Journals Connector (OSTI)

...of Oceanography, Florida State University...of Oceanography, Florida State University, Tallahassee, Florida 32306 Though a large...designed for geochemical rate determinations...Hydrodynamic forces thus fuel high rates of microbial...seafloor is a high-energy, nonaccumulating...

Evan M. Hunter; Heath J. Mills; Joel E. Kostka

2006-09-01T23:59:59.000Z

422

Inversion Skill for LimitedArea Shelf Modeling --Observational System Simulation Experiments  

E-Print Network (OSTI)

­scale climatology serves as Truth for the sampling and for the skill assessment. The simulation model is 3­D Truth to within observational error at the data points, within them, and shoreward from them. Skill estimation and forecasting, with many consequences. Significant practical progress has been made. Here we

423

Inversion Skill for Limited-Area Shelf Modeling -Part I: An OSSE Case Study  

E-Print Network (OSTI)

-scale climatology serves as Truth* * for the sampling and for the skill assessment. The simulation model is 3 and forecasting* *, with many consequences. Significant practical progress has been made - notably

424

Holocene Reef Development Along the Northeastern St. Croix Shelf, Buck Island, U.S. Virgin Islands  

Science Journals Connector (OSTI)

...cover on the world's reefs, with fundamental questions being asked about the...of a natural boom-and-bust cycle that operates on a time scale longer...Power is supplied from a 21 hp diesel engine and hydraulic pump on the pontoon...

Dennis K. Hubbard; Heinrich Zankl; Ivor Van Heerden; Ivan P. Gill

425

Holocene Reef Development Along the Northeastern St. Croix Shelf, Buck Island, U.S. Virgin Islands  

Science Journals Connector (OSTI)

...Power is supplied from a 21 hp diesel engine and hydraulic pump on the pontoon...position of each sample and the general character of the reef interior. We tested...Buck Island reef through time. The general pattern is one of massive corals...

Dennis K. Hubbard; Heinrich Zankl; Ivor Van Heerden; Ivan P. Gill

426

Projecting future changes in distributions of pelagic fish species of Northeast Pacific shelf seas  

E-Print Network (OSTI)

characteristics. Using projected ocean condition changes from three different Earth System Models, we simulated

Pauly, Daniel

427

SRNL SHELF LIFE STUDIES - SCC STUDIES AT ROOM TEMPERTURE [stress corrosion cracking  

SciTech Connect

Phase II, Series 2 corrosion testing performed by the Savannah River National Laboratory (SRNL) for the Department of Energy 3013 container has been completed. The corrosion tests are part of an integrated plan conducted jointly by Los Alamos National Laboratory and the Savannah River Site. SRNL was responsible for conducting corrosion studies in small-scale vessels to address the influence of salt composition, water loading, and type of oxide/salt contact on the relative humidity inside a 3013 container and on the resulting corrosion of Type 304L and 316L stainless steel (304L and 316L). This testing was conducted in two phases: Phase I evaluated a broad spectrum of salt compositions and initial water loadings on the salt mixtures exposed to 304L and 316L and the resulting corrosion; Phase II evaluated the corrosion of 304L at specific water loadings and a single salt composition. During Phase I testing at high initial moisture levels (0.35 to 1.24 wt%)a, the roomtemperature corrosion of 304L exposed to a series of plutonium oxide/chloride salt mixtures ranged from superficial staining to pitting and stress corrosion cracking (SCC). 304L teardrop coupons that exhibited SCC were directly exposed to a mixture composed of 98 wt % PuO2, 0.9 wt % NaCl, 0.9 wt % KCl, and 0.2 wt % CaCl2. Cracking was not observed in a 316L teardrop coupon. Pitting was also observed in this environment for both 304L and 316L with depths ranging from 20 to 100 ?m. Neither pitting nor SCC was observed in mixtures with a greater chloride salt concentration (5 and 28 wt%). These results demonstrated that for a corrosive solution to form a balance existed between the water loading and the salt chloride concentration. This chloride solution results from the interaction of loaded water with the hydrating CaCl2 salt. In Phase II, Series 1 tests, the SCC results were shown to be reproducible with cracking occurring in as little as 85 days. The approximate 0.5 wt% moisture level was found to result in an initial relative humidity of ~55% within the small-scale vessels. Pits were found to be associated with cracks and appeared to act as initiators for the cracking. In a vapor-space only exposure, the weld oxide, which results from the TIG closure weld used to fabricate the teardrop coupon, was also shown to be more susceptible to pitting corrosion than a surface free from weld oxide. This result has important implications for the closure weld of the 3013 inner can since the weld oxide on the can internal surface cannot be removed. The results from the Phase II, Series 2 tests further demonstrated the significance of forming a solution with a critical chloride concentration for corrosion to proceed. 304L teardrop coupons were found to corrode only by pitting with a similar oxide/salt mixture as used in Series 1 testing but with a lower water loading of 0.2 wt%, which resulted in an initial relative humidity of 35-38%. These tests ran twice as long as those for Series 1 testing. The exposure condition was also found to impact the corrosion with salt-exposed surfaces showing lower corrosion resistance. Additional analyses of the Series 2 coupons are recommended especially for determining if cracks emanate from the bottom of pits. Data generated under the 2009 3013 corrosion test plan, as was presented here, increased the understanding of the corrosion process within a sealed 3013 container. Along with the corrosion data from destructive evaluations of 3013 containers, the inner can closure weld region (ICCWR) has been identified as the most vulnerable area of the inner can where corrosion may lead to corrosive species leaking to the interior surface of the outer container, thereby jeopardizing the integrity of the 3013 container. A new corrosion plan has been designed that will characterize the corrosion at the ICCWR of 3013 DEs as well as parameters affecting this corrosion.

Mickalonis, J.; Duffey, J.

2014-11-12T23:59:59.000Z

428

Development of low-fat ground beef patties with extended shelf-lif  

E-Print Network (OSTI)

-thiobarbituric acid(TBA)-reactive substances after 6 days of refrigerated storage, but the low-fat control patties had better flavor than high-fat patties when either freshly cooked or stored. STPP was an effective antioxidant and was synergistic with SA...

Adams, Suzanne Michele

2012-06-07T23:59:59.000Z

429

Distribution of shelf sediments, offshore from Anton Lizardo and the Port of Veracruz, Veracruz, Mexico  

E-Print Network (OSTI)

of the reefs, suggesting that, this might be the controlling factor in the shape of the carbonate buildups. ~Ge lo ot th e The Anton Lizardo and Port of Veracruz reef complex- es are located on the eastern margin of the 14, 000 km 2 Veracruz Basin (Tamayo... at the small vil- lage of Boca del Rio, this river drains an area of 3, 627 km and has an annual discharge of 2, 689 million m 2 (Tamayo, 1949) . Rio Papaloapan, the larger of the tw'o rivers, empties into the Gulf of Mexico at the Port of Alvardo 40 km...

Edwards, Goldsborough Serpell

2012-06-07T23:59:59.000Z

430

Petrology and origin of three rock outcrops off the Texas continental shelf  

E-Print Network (OSTI)

&&pic' of sai&dst one I r&iiti I:c 98 f . it ho!a 1&i!011 i!ei. & . "I iidl cd v!1 th thc scanning cl&ictr&in micro. :cope, They showed tliai the c&m&ent is gencra11y pc!i pl!yro'ol;&st i c?with eel & its rhombo!!Cd] ol;s growing within th&. . iaicrocr Petal...'I OP FlGUIIKS I ocation of the 88, 98 ?and 99 f aI horn lu&oils PAGI. Bathymetrv of the area of thc three I-. nol7 s, and the location of sparker profiIe A-A' Grain size an, . lysis of the sandstone from the 98 fathom knoll 12 Hcavv minerals...

Harber, Dale Lynn

2012-06-07T23:59:59.000Z

431

Observational and Numerical Modeling Studies of Turbulence on the Texas-Louisiana Continental Shelf  

E-Print Network (OSTI)

.31) are then given by: @tvi + vj@jvi @j @jvi v0jv0i + 2 ijl jvl = @ip 0 gi 0 ; (1.34) 18 @jvj = 0; (1.35) @tT + vj@jT @j T@jT v0jT 0 = @zI cp 0 ; (1.36) @tS + vj@jS @j S@jS v0jS 0 = 0: (1.37) There are unknown second... + 0T 0@jjv0i + v 0 i@jjT 0 = v0iv0j@jT @jviv0jT 0 2 ijl jv0lT 0 gi 0 T 0 0 1 0 T 0@ip0 + v 0 j@ip 0 2( + 0)@jv0i@jT 0; (1.39) @tT 02 + @j vjT 02 + v0jT 02 + 0@jT 02 = 2v0jT 0@jT 2 0(@jT 0)2; (1.40) 19 @tT 0S 0 + @j...

Zhang, Zheng

2013-05-24T23:59:59.000Z

432

Continental Shelf Research 25 (2005) 227242 Influence of stratification on decaying surface seiche modes  

E-Print Network (OSTI)

of ffiffiffiffiffiffiffiffiffiffiffi Dr=r p ). Those seiches also decay over time, as wave radiation gradually takes their energy away of flooding at Venice. r 2004 Elsevier Ltd. All rights reserved. Keywords: Seiches; Surface waves

Cushman-Roisin, Benoit

433

Estuarine, Coastal and Shelf Science (1988) 26, 447-458 Contemporary and Historical Patterns of  

E-Print Network (OSTI)

7700, South Africa Received 27 April 1987andin revisedform 29 October 1987 Keywords: distribution; penguin; population; seabirds; Spheniscus Line transects from boats were conducted during 1984 and 1985% of all breeding birds occurred within 3 km of the coast. Penguin density decreased with increasing

Duffy, David Cameron

434

The Role of Particulate Matter in the Development of Hypoxia on the Texas-Louisiana Shelf  

E-Print Network (OSTI)

and Gardner, 2004; Chen et al., 2004; Nelson and Siegel, 2002; Coble, 2007; D?Sa and DiMarco, 2009; Shank and Evans, 2011). CDOM is subject to photo-oxidation, so CDOM is not a completely conservative property of sea water (Coble, 2007; Shank and Evans.... Therefore, the CDOM present was a product of in situ respiration, not from the plume waters, since CDOM is dissolved. CDOM can only be transferred downward by mixing, not settling. D?Sa and DiMarco (2009) also observed concentrations of CDOM that were...

Cochran, Emma Mary

2013-07-31T23:59:59.000Z

435

Outer continental shelf oil and gas activities. Pacific update: August 1987 - November 1989  

SciTech Connect

This Pacific Update focuses on the geology and petroleum potential of the Central California and Washington-Oregon OCS Planning Areas. This report discusses the following topics: offshore oil and gas resources of the Pacific region; project-specific developments and status; and magnitude and timing of offshore developments. (CBS)

Slitor, Douglas L.; Wiese, Jeffrey D.; Karpas, Robert M.

1990-01-01T23:59:59.000Z

436

Settlement and nursery habitats for demersal fishes on the continental shelf  

E-Print Network (OSTI)

gained about the distribution and quality of juvenile habitat for commer- cially important offshore (Sissen- wine, 1984; Houde, 1987; Peterman et al., 1988; Bradford, 1992; Miller, 1994). Several ichthyoplankton sur- veys have helped to increase our understanding of egg and larval distributions

437

Dynamics of ice shelf rift propagation and iceberg calving inferred from geodetic and seismic observations  

E-Print Network (OSTI)

The theory of subcritical crack growth with applications tothe simple model of subcritical crack growth suggested by

Bassis, Jeremy N.

2007-01-01T23:59:59.000Z

438

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation on Pore  

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

Pore scale mechanistic study of the preferential mode of hydrate formation in sediments Pore scale mechanistic study of the preferential mode of hydrate formation in sediments Pore scale mechanistic study of the preferential mode of hydrate formation in sediments: Coupling of fluid flow and sediment mechanics Authors: Antone K. Jain and Ruben Juanes Venue: International Conference on Gas Hydrates, Vancouver, Canada, July 7-10, 2008. ( http://www.icgh.org [external site] ) Abstract: Methane hydrates in ocean sediments range from essentially static accumulations of hydrate and brine, to active cold seeps where hydrate and a methane gas phase co-exist in the hydrate stability zone (HSZ). In this and a companion paper (Behseresht, Prodanovic and Bryant) methods are described to test the following hypothesis: the coupling between drainage and fracturing (both induced by pore pressure) determines whether methane gas entering the HSZ is converted completely to hydrate. H A discrete element method (DEM) is presented to model the strong coupling that takes place between the pore fluids and the mechanical behavior of the sediment.

439

E-Print Network 3.0 - atlantic continental shelf Sample Search...  

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

; Geosciences 48 The role of marsh-dominated heterotrophic continental margins in transport of CO2 between the atmosphere, the land-sea interface and Summary: : General:...

440

Bathymetric records of marine shelled mollusca from the northeastern shelf of Yucatan, Mexico  

E-Print Network (OSTI)

and rounded, slit anteriorly and notched toward the posterior and the apex. The margin is very crenulated. Rice and Kornicker 51 (1965) reported two shells off the Campeche Bank in 30 fms. Puncturella noachina (Linne, 1771) Two shells, 3 mm in diameter... cancellate sculpture. The interior is glossy with a pit posterior to the slit. The shells agree with the description as interpreted by Abbott (1954). Rimula frenulata Dell, 1889 Q'late 1, Figure a) One shell, 5 mm long x 3 mm wide, was found at 23...

Treece, Granvil D

1977-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

Horizontal internal-tide fluxes supportelevated phytoplankton productivity overthe inner continental shelf  

E-Print Network (OSTI)

2005. Estimating internal wave energy fluxes in the ocean.fluxes of internal-wave energy (Kunze et al. 2002; Nash etvariability to internal-wave energy-flux calculations). [21

Lucas, Andrew

2014-01-01T23:59:59.000Z

442

Microbial carbon sources on the shelf and slope of the northwestern Gulf of Mexico  

E-Print Network (OSTI)

:0 and total organic carbon isotope ratios. Deviations from the 1:1 line in the former indicate living or recently senescent sources of organic matter are not predominantly bacterial. Deviations from the 1:1 line in the latter indicate living or recently...

Rauschenberg, Carlton David

2006-10-30T23:59:59.000Z

443

High resolution geophysical mapping of the Mississippi-Alabama Outer Continental Shelf  

E-Print Network (OSTI)

system, a 3. 5 or a 4. 0 kHz subbottom profiler system, and precision satellite or radio navigation. Three types of topographic features were identified: 1) reef-like mounds (RLM), ranging in diameter from 2 to 1000 meters and having heights from (1... to 18 meters, 2) ridges, having heights from &1 to 8 meters and up to 250 meters in width, and 3) shallow depressions, less than 1 meter deep, irregular in shape, and usually less than 10 meters in diameter. The RLM possibly formed by growth...

Laswell, Jay Scott

2012-06-07T23:59:59.000Z

444

Object Security Attributes: Enabling Application-Specific Access Control in Middleware  

Science Journals Connector (OSTI)

This paper makes two primary contributions toward establishing support for application-specific factors in middleware security mechanisms. First, it develops a simple classification framework for reasoning abo...

Konstantin Beznosov

2002-01-01T23:59:59.000Z

445

OF Pmuhmnc EJECTOR PUMP IN OCEASOGRAPHT  

Science Journals Connector (OSTI)

danger of cavitation behind the impeller blades. Organic molecules ... The danger of rupture exists mainly abo\\re .... tutes of Health WP Grant 00936. \\Ve have.

2000-02-10T23:59:59.000Z

447

Contribution of iceberg sounds to the ambient noise budget in the South Pacific Ocean  

Science Journals Connector (OSTI)

On May 2002 C19 a 5500 km2 iceberg calved from the Ross Ice Shelf eventually drifting eastward into the open Pacific Ocean by 2008. As it sailed into warmer waters thermal and wind stresses caused the iceberg to crack and break apart. These resulting icequakes projected wideband acoustic energy into the water column influencing the regional ambient noise environment. Icequake noise was persistent and strong enough to be observed by NOAAs eastern equatorial Pacific moored hydrophone (EEP-NW at 8N 110W) as well as the hydroacoustic station of International Monitoring System (IMS) on Juan Fernandez Island (H03N at 33.44S 78.91W). Elevated noise levels (maximum of ~+3 dB at NOAAs EEP and ~+7 dB at IMS H03N hydrophones) were observed by both stations from early 2008 when C19a first appeared in the Pacific until it drifted into the Atlantic Ocean in early 2009. C19as icequake and calving activity was also most frequent during this same period. Seasonal changes and long-term trends in ambient noise levels at NOAAs EEP-NW acoustic mooring (19962009) and IMS Juan Fernandez (20032010 years) and the unique acoustic role icebergs play in the Southern Ocean will be presented.

Haru Matsumoto; Robert Dziak; Minkyu Park; Won-Sang Lee; Tai-Kwan Lau; Matt Fowler

2013-01-01T23:59:59.000Z

448

Learning Chordal Markov Networks by Constraint Satisfaction  

E-Print Network (OSTI)

Finland Tomi Janhunen Aalto University Finland Jussi Rintanen§ Aalto University Finland Henrik Nyman¶ °Abo Akademi University Finland Johan Pensar¶ °Abo Akademi University Finland Abstract We investigate]. This work was funded by the Academy of Finland, project 251170. Funded by ERC grant 239784. Also

Rintanen, Jussi

449

1 av / of 5 Massverfring och separationsteknik  

E-Print Network (OSTI)

many and in which year? b. När har du gjort kursutvärderingen för denna kurs http://web.abo course evaluation for this course http://web.abo.fi/fak/ktf/vt/Eng/education_Evaluation.htm A) during

Zevenhoven, Ron

450

1 av / of 4 Massverfring och separationsteknik  

E-Print Network (OSTI)

many and in which year? b. När har du gjort kursutvärderingen för denna kurs http://web.abo course evaluation for this course http://web.abo.fi/fak/ktf/vt/Eng/education_Evaluation.htm A) during

Zevenhoven, Ron

451

1 av / of 3 Massverfring och separationsteknik  

E-Print Network (OSTI)

many and in which year? b. När har du gjort kursutvärderingen för denna kurs http://web.abo course evaluation for this course http://web.abo.fi/fak/ktf/vt/Eng/education_Evaluation.htm A) during

Zevenhoven, Ron

452

Potential for CO2 storage in depleted fields on the Dutch Continental ShelfCost estimate for offshore facilities  

Science Journals Connector (OSTI)

A study was performed on capital and operational costs for offshore injection of CO2 into depleted fields. The main focus was on the design and costs of process requirements for injection, required conservation (hibernation) and modification of existing platforms between end of gas/oil production and start of CO2 injection. Also cost estimates for new platforms are provided. The study is high level and generic in nature as no specific target for CO2 storage has been selected. For the purpose of this study a simplified approach is used for determination of the required injection facilities and platform modifications. Nevertheless, the study provides a good indication on the level of expenditures that can be expected.

Floor Jansen; Rob Steinz; Boudewijn van Gelder

2011-01-01T23:59:59.000Z

453

The effect of a cold-air outbreak on the continental shelf water of the northwestern Gulf of Mexico  

E-Print Network (OSTI)

distribution of sigma-t with waters further offshore. 111 Tixne-averaged local rates of change are used with estimates of advective rates of change determined for both cruise periods to obtain estimates of the xnaterial derivatives of vertically..., for thermal 2 energy the maxximum value, -1500 cal/cm /day, occurred in the deeper offshore region. An estimate of the average latent plus sensible heat flux for 2 four selected stations of -1135 cal/crn /day was obtained from the time-averaged material...

Parker, Charles Allen

2012-06-07T23:59:59.000Z

454

Cross-shelf coral reef biodiversity : does data and ecological theory fit with habitat-based species conservation models?.  

E-Print Network (OSTI)

??[Truncated abstract] Selection of priority areas for Marine Park conservation is often compromised by the lack of comprehensive biodiversity data and the resources and expertise (more)

Radford, Benedict

2007-01-01T23:59:59.000Z

455

Stratigraphy of the CenomanianeTuronian Oceanic Anoxic Event OAE2 in shallow shelf sequences of NE Egypt  

E-Print Network (OSTI)

Egypt Ahmed El-Sabbagh a,*, Abdel Aziz Tantawy b , Gerta Keller c , Hassan Khozyem d , Jorge Spangenberg University, Alexandria 21511, Egypt b Department of Geology, Aswan Faculty of Science, South Valley University, Aswan 81528, Egypt c Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ

Keller, Gerta

456

Engineering properties of shallow sediments in West Delta and South Pass Outer Continental Shelf Lease Areas, offshore Louisiana  

E-Print Network (OSTI)

, and sandy silt (WD024 1 WD028 ly WD029 1 WD029 2& WD029 3 1 1 These designations identify borehole locations. WD refers to West Delta OCS Lease Area, and SP refers to South Pass OCS Lease Area. The next three digits identify the number of the lease block... altering the linearity of the curve (Fig. 10). Since the curve was not deflected during consolidation as water content approached the plastic limit, the plastic limit does not appear to influence the minimum water content. It was noted that water content...

Helwick, Sterling J

2012-06-07T23:59:59.000Z

457

Velocity Anisotropy of shales and sandstones from core sample and well log on the Norwegian Continental shelf.  

E-Print Network (OSTI)

??Abstract Velocity anisotropy referse the directional inequality of velocity on the subsurface. Often sedimentary rocks are anisotropic and occurse at all scales from core plugs (more)

Meseret, Malaku

2008-01-01T23:59:59.000Z

458

The use of oxidation-reduction dyes in the determination of the shelf-life of meats  

E-Print Network (OSTI)

!. hvle?o l, lu . re inc t r'on th ie 21 0 2 4 6 8 IO l2 REDUCTION TIN(E (HOURS) I'~Coot C. Rolaticn botuo o now'&o o o. ' rt(it oo, " ~i;m- io r'sic' o;. t ttoz 1. it ni . 't. tio . t it. 22 ~t 7 C & 0 3- I 0 2 4 6 8 10 12 l4 REDUCTIOI'J Tll... 0 0 4 4 0 0 0 0 4 4 0 0 00 0 4 0 y = 7 8131 ?. 3069X e k kkk 0 2 4 6 8 10 12 14 REDUCTION TIME (HOURS) Figure 19. Relation b tw en number of o: idase-uos itive bacterra in all products and rcsasurin red iction tim e @ 0 Z, 6...

Bush, Janis Carolyn

2012-06-07T23:59:59.000Z

459

Source-inherited shape characteristics of coarse quartz-silt on the northwest Gulf of Mexico continental shelf  

E-Print Network (OSTI)

morphologic features were then summarized as "abundant" (present on greater than 75K of the quartz-grains), "common" (present on 25-75/ of the quartz-grains) and "rare" (present on less than 25K of the quartz-grains). 23 Table 2. Scanning electron..., however, secondary morphologic features are rarely found on quartz-grains of crystalline rocks from the Llano Region, The primary morphologic features (fractures, crystalline nodes, pseudocrystalline nodes and grain embayments) on coarse-silt quartz...

Haines, John Beverly

2012-06-07T23:59:59.000Z

460

2001 Journal of Geophysical Research Vol 106 (C3), pp 4593-4612 Internal hydraulic flows on the continental shelf  

E-Print Network (OSTI)

hydraulic jump. The dissipation rate of turbulent energy is consistent with the mean energy removal rate motions induced by small bathymetric features T Currently at the Applied Physics Laboratory, University to pass over the obstacle; po- tential energy is subsequently converted to kinetic energy downstream

Kurapov, Alexander

Note: This page contains sample records for the topic "nw shelf abo" 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

An evaluation of the carbonate cements and their diagenesis on selected banks, outer Continental Shelf: northern Gulf of Mexico  

E-Print Network (OSTI)

Approved as to style and content by: Ric ar Reza Co-chairman of Committee Wayne M. hr, Co-chai man of Committee William R. Bryan Member Robert 0. Reid Head of Department May 198Z ABSTRACT An Evaluation of the Carbonate Cements... Approved as to style and content by: Ric ar Reza Co-chairman of Committee Wayne M. hr, Co-chai man of Committee William R. Bryan Member Robert 0. Reid Head of Department May 198Z ABSTRACT An Evaluation of the Carbonate Cements...

Stafford, John Michael

2012-06-07T23:59:59.000Z

462

Extending Shelf Life of Sliced Mushrooms (Agaricus bisporus) by using Vacuum Impregnation and Electron-beam Irradiation  

E-Print Network (OSTI)

. The best treatment was the combination of vacuum impregnation with irradiation according to the consumer studies....

Sevimli, Zeynep

2013-01-14T23:59:59.000Z

463

Rapid Mud Accumulation On the Central Texas Shelf Linked To Climate Change and Sea-Level Rise  

Science Journals Connector (OSTI)

...R. Weight1a , John B. Anderson2 and Rodrigo Fernandez2 1BHP Billiton Petroleum, Exploration...facility following the procedures outlined in Santos et al. (2007). Because fully articulated and intact shells were scarce...Sedimentology, v. 48, p. 837a 853. a Santos G.M., Moore R.B., Southon J...

Robert W. R. Weight; John B. Anderson; Rodrigo Fernandez

464

Progress of studies on the internal tide generated by the passage of barotropic tide over continental shelf/slope  

Science Journals Connector (OSTI)

Both beam-like structure and modal structure of internal tides may exist in the ocean. Bottom intensifications ... result of nonlinear interaction among waves. The energy may decay very fast so that internal tides

Jiang Mingshun; Fang Xinhua

1992-06-01T23:59:59.000Z

465

Ground beef shelf life assessment as influenced by sodium lactate, sodium propionate, sodium diacetate, and soy protein concentrate  

E-Print Network (OSTI)

In phase I all-beef and soy-added ground beef patties containing sodium lactate, sodium propionate, and sodium diacetate at various levels and combinations were stored for nine months at -10C. Upon cooking, the addition of sodium lactate increased...

Grones, Kelly Leann

2012-06-07T23:59:59.000Z

466

Historical macrobenthic community assemblages in the Avils Canyon, N Iberian Shelf: Baseline biodiversity information for a marine protected area  

Science Journals Connector (OSTI)

Deep-sea ecosystems are highly diverse, and European countries seek to protect these environments by identifying conservation targets. One of these is the Avils Canyon, southern Bay of Biscay, NE Atlantic, Spain. We present the first analysis of historical benthic communities (19871988) of this canyon ecosystem, which is a valuable source of biodiversity baseline information. We found 810 taxa divided in five main macrobenthic assemblages, showing a highly diverse benthic community. Bathymetry was the major structuring agent of benthic community, separating shallow (assemblages I and II, 31 to 307m depth) from deep stations (assemblages III, IV and V, 198 to 1400m depth). Especially diverse was assemblage IV, located at the easternmost part of the continental slope (3781100m depth) where we found reef-forming corals Lophelia pertusa and Madrepora oculata. These and other communities (sea-pens [Order Pennatulacea, Phylum Cnidaria] and burrowing macrofauna) represent key habitats in NE Atlantic continental slopes, which are currently threatened. The present dataset has produced the most comprehensive assessment of diversity in this area to date, focusing on the taxonomic groups which may best reflect the health of the marine ecosystem and supporting previous studies which indicate that the continental slope of the southern Bay of Biscay hosts key benthic habitats.

Maite Louzao; Nuria Anadn; Julio Arrontes; Consuelo lvarez-Claudio; Dulce Mara Fuente; Francisco Ocharan; Araceli Anadn; Jos Luis Acua

2010-01-01T23:59:59.000Z

467

Coastal Hypoxia on the Texas Shelf: An Ocean Observing and Management Approach to Improving Gulf of Mexico Hypoxia Monitoring  

E-Print Network (OSTI)

-surface current speeds and salinity-driven stratification. Interpolation models resulted in three size categories for hypoxia area: small (100 1,000 km^2), moderate (1,001 3,000 km^2), and large (3,001+ km^2). Moderate years include 2002, 2004, and 2007...

Mullins, Ruth Louise

2013-05-07T23:59:59.000Z

468

Monomethylmercury concentrations on the eastern Texas-Louisiana shelf during the formation, peak, and disappearance of hypoxia  

E-Print Network (OSTI)

A study of monomethylmercury (MMHg) concentrations in the water and sediment of the hypoxic zone in the northeastern Gulf of Mexico was conducted on several cruises between April 2004 and May 2005. Surface water MMHg concentrations were low...

Keach, Sara Elizabeth

2007-09-17T23:59:59.000Z

469

Fine-grained sedimentation on the Chenier Plain Coast and inner continental shelf, northern Gulf of Mexico  

E-Print Network (OSTI)

This thesis examines the evolution of a mud-dominated coastal sedimentary system on multiple time scales. Fine-grained systems exhibit different properties and behavior from sandy coasts, and have received relatively little ...

Draut, Amy Elizabeth

2003-01-01T23:59:59.000Z

470

Source and distribution patterns of the Late Pleistocene-Holocene sands on the Central Texas-Louisiana continental shelf  

E-Print Network (OSTI)

COMPlEX Sco C ee 25 Table 1: SAND MINERALOGY, COLORADO RIVER SOURCE TERRANES (from Magenheimer, 1985) CRYSTALLINE ROCKS, LLANO UPLIFT Mq Pq Mica IRF SRF MRF Other Packsaddle Schist (3) Valley Spring Gneiss (3) Town Mountain Granite (4) Younger... Granite (I) 33 32 29 21 33 45 53 44 8 0 0 3 0 0 4 10 0 12 12 0 17 7 11 7 0 2 0 11 Nean, all rocks 30 5 5 0 7 6 CAMBRIAN-TRIASSIC SEDIMENTARY ROCKS, CENTRAL PLAINS Pq F Mica IRF SRF MRF Other Riley Formation (1) Strawn Group (2...

Reutter, David Christian

2012-06-07T23:59:59.000Z

471

DISSOLUTION OF OPHIUROID OSSICLES ON THE SHALLOW ANTARCTIC SHELF: IMPLICATIONS FOR THE FOSSIL RECORD AND OCEAN ACIDIFICATION  

Science Journals Connector (OSTI)

...ossicles were compared using the Kuskal-Wallis H-test. Highest levels of dissolution...ossicles (Fig. 8A). The Kruskal-Wallis H-test (Johnson, 2005) shows...of Pristine ossicles (Kruskal-Wallis H-test, H 7.84, df 2, p 0...

BEVERLY J. WALKER; MOLLY F. MILLER; SAMUEL S. BOWSER; DAVID J. FURBISH; GUILHERME A. R. GUALDA

472

Optical and physical variability on timescales from minutes to the seasonal cycle on the New England shelf  

E-Print Network (OSTI)

, resulting in reduced stratification of the water column, particle redistribution, and sediment resuspension, tides, current- and wave-induced sediment resuspension and transport [Wright et al., 1986; Madsen et al

Chang, Grace C.

473

Shelf-life characteristics of steaks from steers supplemented with vitamin E and differing in USDA Quality Grade  

E-Print Network (OSTI)

, objective Coriunission Intemationale de 1'Eclairage (CIE) L*, a~ and b* scores (Clydesdale et al. , 1978) and lower lipid oxida- tion rates as measured by TBA values. Sherbeck et al. (1995) tested the effect of vitamin E suppleinentation... discoloration (DISCL). A sample ballot utilized by the color panel is displayed in the Appendix. Immediately following panel evaluation each steak was evaluated for Connnis- sion Internationale de 1'Eclairage (CIE) a*, b*, and L~ values (Clydesdale, 1978...

Tipton, Norlyn Claud

2012-06-07T23:59:59.000Z

474

Continental Shelf Research 20 (2000) 1}13 Internal tide e!ects on a sewage plume  

E-Print Network (OSTI)

de Luminy, F13 288 Marseille Cedex 09, France Hancock Institute for Marine Studies, University Island treatment plant in the coastal waters of Mamala Bay, Oahu, Hawaii, was mapped using ship of contaminants detected on nearby tourist beaches. Mamala Bay is located on the * Corresponding author. 0278

Fabrikant, Sara Irina

475

A proposal for federal legislation for the protection and preservation of submerged cultural resources on the outer continental shelf  

E-Print Network (OSTI)

. With these techniques, in 1968 and 1969, archaeo- logists raised and reconstructed an entire fourth-century B. C. merchant vessel sunk off the coast of Kyrenia, Cyprus. Borrowing 5 the technology of the offshore oil industry, in the form of magneto- meters, metal... from the wreck of the Spanish galleon Nuestra Senora de Atocha, sunk in 1622 off the coast of Florida. 6 Much of the historical value in these wrecks lies in the spatial relationship that various portions or artifacts of a wreck have to other...

Hamilton, Richard Evans

1978-01-01T23:59:59.000Z

476

MFR PAPER 1276 Table I.-The approximate shelf life of cod fillets (Ronalvalll et aI., 1973).  

E-Print Network (OSTI)

their quality and image are improved. This paper describes the concept, its implementation under federal. " Articles by other consumer groups have been even more damaging to the image of fish as food. Some of them have condemned the processors, be- cause by their brand name they were the only identifiable elements

477

The distribution and optical response of particles on the continental shelf and their relationship to cross-isopycnal mixing  

E-Print Network (OSTI)

: Particle size spectra for five casts illustrating changes in bottom waters during the resuspension starting around day 241 (1996). .. . . . . . . . . 101 Figure 50: Particle size spectra for four casts illustrating changes in bottom (spring 1997) during... the resuspension starting around day 129 . . . . . , . . . ?105 Figure 51: Beam attenuation as a function of PM and POC over two fluorescence maximums 24 hours apart (summer 1996) . . . . . . 107 Figure 52: Scatter plots of LSS versus c?POC and PM for spring...

Blakey, Joshua C.

1999-01-01T23:59:59.000Z

478

The orientation and distribution of sea fans on hardbottom habitats of the Mississippi/Alabama continental shelf  

E-Print Network (OSTI)

Antipathes ?atlantica/gracilis. The gorgonian Thesea sp. had a significant negative relationship with height above bottom. After accounting for the above variables, colony distributions still exhibited non-homogenous distributions at both within-site...

Peccini, Michael

2012-06-07T23:59:59.000Z

479

Investigating the Horizontal Distribution of Hydrographic Properties of the Texas-Louisiana Shelf Using an Undulating Towed Vehicle  

E-Print Network (OSTI)

to investigate the horizontal and vertical spatial variability and examine the relationship of physical and biological factors with the distribution of dissolved oxygen concentration. Equipped with a CTD and multiple sensors, the instrument package produced high...

Calbat, Kyle

2013-02-04T23:59:59.000Z

480

On the creation and development of future underwater power supply during reclamation of continental shelf and World Ocean  

Science Journals Connector (OSTI)

A description is given of an environmentally friendly electric motor and transformer that operate in seawater and have no analogs in the world, as well as of the future underwater power supply during the developm...

V. I. Vetokhin

2010-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "nw shelf abo" 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

ContinentalShelfResearch,Vol. 17, No. 6, pp. 605q534,1997 (~)1997ElsevierScienceLtd  

E-Print Network (OSTI)

on the coastal current. The nested calculations also expose finer structure due to river sources, heat flux, river discharges) and remote (Gulf-scale) forcing are examined. Tidal rectification in the Eastern Gulf; otherwise unrealistic exchanges with the Gulf occur..~,n approximate divisionof local and remote dynamical

482

An Environmental Re-interpretation of the Permian Evaporite/Carbonate Shelf Sediments of the Guadalupe Mountains  

Science Journals Connector (OSTI)

...direction of Robert Folk. Material assistance was freely provided by the...and Willis Tyrrell. Generous financial support was provided by the...the lack of traction cur- rent structures in the quartz siltsand...oolites from the Ordovician of Minnesota: Jour. Sed. Pe- trology...

483

Development of an Alginate-based Antimicrobial Edible Coating to Extend the Shelf-life of Fresh-cut Pineapple  

E-Print Network (OSTI)

In the last few years, especially in the developed countries, an increment in demand for fresh-cut fruit by the consumers of all ages has occurred. This increase is mainly due to the importance that people are giving to the consumption of fresh...

Mantilla, Natalia

2012-07-16T23:59:59.000Z

484

Alginate-Based Edible Coating to Enhance Quality and Shelf-Life of Fresh-Cut Watermelon (Citrullus Lanatus)  

E-Print Network (OSTI)

Fresh-cut watermelon is appreciated for its taste, flavor, and juiciness. However, there are challenges in maintaining the freshness since fresh-cut processing of fruits promotes faster deterioration. Our objective was to determine the effectiveness...

Sipahi, Rabia

2012-10-19T23:59:59.000Z

485

Relation of sedimentologic features and reservoir quality in a shelf ridge sandstone deposit - comparison of outcrop and subsurface properties  

SciTech Connect

The High Energy Ridge Margin (HERM) facies of the Shannon Sandstone in the Salt Creek anticline area of the Powder River basin, Wyoming, is comprised of fine to medium-grained glauconitic sandstone (82%), which is cross-bedded, rippled, and burrowed, and shale and limonitic clay (18%). Histograms of log permeability-to-air values measured from 214 1-in. diameter cores drilled from the face of an outcrop of the HERM facies of the lower Shannon indicate the existence of two major permeability populations. These two permeability populations can be related to cross-bedded sandstone (higher permeabilities), and noncross-bedded, rippled, and burrowed sandstone with clay laminae (lower permeabilities). Examination of the HERM facies in upper Shannon cores from Teapot Dome oil field, located 5 mi from the studied outcrop at a depth of 300 ft, indicate similar sedimentologic features and similar permeability populations related to cross-bedded and noncross-bedded subfacies within the HERM facies. Comparisons of permeability and porosity histograms, cumulative distribution functions, correlation lengths, and natural logarithm of permeability versus porosity plots also indicate a strong similarity in HERM reservoir properties between outcrop and Teapot Dome field. The similarities of outcrop and Teapot Dome permeabilities and porosities, which are from the same geologic facies but from different depositional episodes (upper and lower Shannon), suggest that rocks deposited under similar depositional processes within a given deposystem have similar reservoir properties.

Jackson, S.R.; Szpakiewicz, M.; Tomutsa, L.

1987-05-01T23:59:59.000Z

486

Evaluation of a Deep Plan Office Space Daylit with an Optical Light Pipe and a Specular Light Shelf  

E-Print Network (OSTI)

as extensions of skylights (Oakley et al., 2000) and could solve the problem of insufficient daylight in deep plan spaces. But they are mostly applicable for top floors of buildings only. Reflective shaft combined with heliostats (Aizenberg, 1997) is one... as extensions of skylights (Oakley et al., 2000) and could solve the problem of insufficient daylight in deep plan spaces. But they are mostly applicable for top floors of buildings only. Reflective shaft combined with heliostats (Aizenberg, 1997) is one...

Upadhyaya, Kapil

2009-05-15T23:59:59.000Z

487

A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts  

Science Journals Connector (OSTI)

...A remotely operated vehicle survey in Palmer Deep...the crabs have major ecological impacts. Antarctic...a remotely operated vehicle (ROV) survey and crab...A remotely operated vehicle survey in Palmer Deep...the crabs have major ecological impacts. Antarctic...

2012-01-01T23:59:59.000Z

488

Shelf Life Extension of Drawn Whole Atlantic Cod, Gadus morhua, and Cod Fillets by Treatment With Potassium Sorbate  

E-Print Network (OSTI)

processing, and by their proli- feration during storage. The method studied in this work seeks to preserve examination. reported that the addition of 0.2 percent KS to half-strength refrigerated seawater used

489

Lateral Drilling and Completion Technologies for Shallow-Shelf Carbonates of the Red River and Ratcliffe Formations, Williston Basin  

SciTech Connect

Luff Exploration Company (LEC) focused on involvement in technologies being developed utilizing horizontal drilling concepts to enhance oil- well productivity starting in 1992. Initial efforts were directed toward high-pressure lateral jetting techniques to be applied in existing vertical wells. After involvement in several failed field attempts with jetting technologies, emphasis shifted to application of emerging technologies for drilling short-radius laterals in existing wellbores and medium-radius technologies in new wells. These lateral drilling technologies were applied in the Mississippi Ratcliffe and Ordovician Red River formations at depths of 2590 to 2890 m (8500 to 9500 ft) in Richland Co., MT; Bowman Co., ND; and Harding Co., SD.

David Gibbons; Larry A. Carrell; Richard D. George

1997-07-31T23:59:59.000Z

490

Cap de Creus canyon: a link between shelf and slope sediment dispersal systems in the western Gulf of Lions, France  

E-Print Network (OSTI)

river, ~160 km to the NE). It is hypothesized that the westernmost Cap de Creus canyon is intercepting the regional sediment-transport pathway and directing it offshore, allowing significant sediment export through this area. The overall goal...

DeGeest, Amy Louise

2006-04-12T23:59:59.000Z

491

The rapid disintegration of Arctic sea ice, like the Ward Hunt Ice Shelf in Canada, is a cause for  

E-Print Network (OSTI)

Change (IPCC), after his speech at the third World Climate Conference in Geneva on Monday. The week-long event is being organized by the World Meteorological Organization (WMO), together with Switzerland technical tools for the crucial United Nations World Climate Conference in December in Copenhagen, Denmark

Stocker, Thomas

492

2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4 www.schulich.ucalgary.ca FOR IMMEDIATE RELEASE  

E-Print Network (OSTI)

's economic health. The purpose of Women in Engineering Day is to enlighten young woman about the engineering the University of Calgary promotes Engineering as a career to some of Alberta's brightest and best students. On May 3rd 2006 the Schulich School of Engineering at the University of Calgary will be hosting Women

Calgary, University of

493

Deep sea in situ excess pore pressure and sediment deformation off NW Sumatra and its relation with the December 26, 2004 Great Sumatra-Andaman Earthquake  

Science Journals Connector (OSTI)

The swath bathymetric data acquired during the Sumatra Aftershocks cruise from the Sunda trench in the Indian Ocean to the north of the Sumatra Island imaged several scars and deposits. In situ pore pressure me...

Nabil Sultan; Antonio Cattaneo

2009-06-01T23:59:59.000Z

494

I tnR(I J UCI t~ G f~ SK, A S IMP LE nw~~ LED GEABLE SYSTE1'1 Bozena H. Thompson  

E-Print Network (OSTI)

,.California February 1-3. 1983 Cal ifornia Institute of Technology Pasadena, Cal ifornia 91125 Novembe'r 1982 #12;1 B California Institute of Technology Pasadena, California 91125 ABSTRACT ASK, A1imple ~nowledgeable System in the sense that its development concentrated on clean engineering solutions to what could be done now

495

Paleotopography and Sea-level Controls on Facies Distribution and Stratal Architecture in the Westerville Limestone Member (Upper Pennsylvanian) NE Kansas and NW Missouri  

E-Print Network (OSTI)

Packstone Facies 35 Microbial Boundstone Facies 40 Coarse-Grained Packstone Facies 44 STRATIGRAPHIC CORRELATIONS AND SEQUENCE-STRATIGRAPHIC INTERPRETATIONS 45 Stratigraphic Datum (Surface A) 58 Wea Shale 58 Surface B 63 Westerville Limestone Member 63... Interval W1 63 Surface C 70 Interval W2 73 Surface D 79 Interval W3 83 Surface E 93 Nellie Bly Formation and Quivira Shale Member 93 Relative Sea-Level Curve 94 DISCUSSION 102 Relative Sea-Level Curve 102 v Paleotopography, Relative Sea Level, and Carbonate...

Fairchild, Justin M.

2012-05-31T23:59:59.000Z

496

Do ridge-ridge-fault triple junctions exist on Earth? Evidence from the Aden-Owen-Carlsberg junction in the NW Indian Ocean  

E-Print Network (OSTI)

and the East Pacific Rise, and the Aden-Owen-Carlsberg (AOC) triple junction between the Owen fracture zone before connecting to the ridges. We here report the results of a marine geophysical survey of the AOC of distributed deformation. The AOC triple junction appears to be in a transient stage between a former triple

497

Seismic hazard reappraisal from combined structural geology, geomorphology and cosmic ray exposure dating analyses: the Eastern Precordillera thrust system (NW Argentina)  

Science Journals Connector (OSTI)

......November 23, 1977, Caucete, Argentina, earthquake sequence, J...Andean magmatism in Chile and Argentina between 28S and 33S: correlation...1974. Seismic moment and energy of earthquakes, and seismic...Aftershocks of the Western Argentina (Caucete) earthquake of......

L. L. Siame; O. Bellier; M. Sbrier; D. L. Bourls; P. Leturmy; M. Perez; M. Araujo

2002-07-01T23:59:59.000Z

498

tEEK TRANSACJ'JONS ON AUTOMATIC CONTROL. VOL. 36, NO. 7. JULY 1991890 J. C. Jtsangand E. A. Jonckheere, "On compudng the spxtrsd nw.fiua  

E-Print Network (OSTI)

! Equations. ErtglewnodCliffs. NJ: Prentice-Hall. 1964. C. Kenney and G. Hewer, "The senslrivity of the afgebraic and differential Riccati equations," Slit&f J. Corer. Oprimiz., vol. 28, Pp. 50-69., 1990. G. WBM Corporation under the SUR Contract SL 88086, D.S.T.O. of Australia, and by Boeing (WAC). R. Horowitz and W

Moore, John Barratt

499

Change detection and visualization of acid mine lakes using time series satellite image data in geographic information systems (GIS): Can (Canakkale) County, NW Turkey  

Science Journals Connector (OSTI)

Can, a county in the province of Canakkale, is one of the most prominent coal mining districts in Turkey. Many mining companies have been operating coal deposits for power generation and district heating... ...

Deniz Sanliyuksel Yucel; Mehmet Ali Yucel; Alper Baba

2014-12-01T23:59:59.000Z

500

1730 Rhode Island Ave, NW, Suite 700 Washington, DC 20036 202-467-6240 www.wte.org TO: IWSA Membership  

E-Print Network (OSTI)

-to-energy facilities. Long-term Extension and Modification of Renewable Energy Production Tax Credit ("PTC"). The bill to receive a tax credit (currently set at one-cent per kilowatt hour; adjusted for inflation) for a period of ten years. The tax credit applies to electricity produced by new facilities or the increased electric