Sample records for large-scale shale gas

  1. High Metallicity, Photoionised Gas in Intergalactic Large-Scale Filaments

    E-Print Network [OSTI]

    Bastien Aracil; Todd M. Tripp; David V. Bowen; Jason X. Proschaska; Hsiao-Wen Chen; Brenda L. Frye

    2006-08-21T23:59:59.000Z

    We present high-resolution UV spectra of absorption-line systems toward the low-z QSO HS0624+6907 (z=0.3700). Coupled with spectroscopic galaxy redshifts, we find that many of these absorbers are integalactic gas clouds distributed within large-scale structures. The gas is cool (T0.9). STIS data reveal a cluster of 13 HI Lyman alpha lines within a 1000 km/s interval at z=0.0635. We find 10 galaxies at this redshift with impact parameters ranging from 135 h^-1 kpc to 1.37 h^-1 Mpc. We attribute the HI Lya absorptions to intragroup medium gas, possibly from a large-scale filament viewed along its long axis. Remarkably, the metallicity is near-solar, [M/H] = -0.05 +/- 0.4 (2 sigma uncertainty), yet the nearest galaxy which might pollute the IGM is at least 135 h_70^-1 kpc away. Tidal stripping from nearby galaxies appears to be the most likely origin of this highly enriched, cool gas. More than six Abell galaxy clusters are found within 4 degree of the sight line suggesting that the QSO line of sight passes near a node in the cosmic web. At z~0.077, we find absorption systems as well as galaxies at the redshift of the nearby clusters Abell 564 and Abell 559. We conclude that the sight line pierces a filament of gas and galaxies feeding into these clusters. The absorber at z_abs = 0.07573 associated with Abell 564/559 also has a high metallicity with [C/H] > -0.6, but again the closest galaxy is relatively far from the sight line (293 h^-1 kpc).

  2. Production Trends of Shale Gas Wells

    E-Print Network [OSTI]

    Khan, Waqar A.

    2010-01-14T23:59:59.000Z

    To obtain better well performance and improved production from shale gas reservoirs, it is important to understand the behavior of shale gas wells and to identify different flow regions in them over a period of time. It is also important...

  3. Shale gas production: potential versus actual greenhouse gas emissions

    E-Print Network [OSTI]

    O’Sullivan, Francis Martin

    Estimates of greenhouse gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level of GHG emissions from shale gas well hydraulic fracturing operations in the United States during ...

  4. Shale gas is natural gas trapped inside

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary of EnergyFocus Group HSS/UnionGlossary Shale GasShale gas

  5. Techno-economic analysis of water management options for unconventional natural gas developments in the Marcellus Shale

    E-Print Network [OSTI]

    Karapataki, Christina

    2012-01-01T23:59:59.000Z

    The emergence of large-scale hydrocarbon production from shale reservoirs has revolutionized the oil and gas sector, and hydraulic fracturing has been the key enabler of this advancement. As a result, the need for water ...

  6. NATURAL GAS FROM SHALE: Questions and Answers Shale Gas Glossary

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaeferApril 1,(EAC)TABLEChallenges are Associated with Shale GasItWater

  7. Australian Shale Gas Assessment Project Reza Rezaee

    E-Print Network [OSTI]

    , Access to different pore structure evaluation techniques including low pressure nitrogen adsorptionAustralian Shale Gas Assessment Project Reza Rezaee Unconventional Gas Research Group of natural gas in many countries. According to recent assessments, Australia has around 437 trillion cubic

  8. 90-day Interim Report on Shale Gas Production - Secretary of...

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

    90-day Interim Report on Shale Gas Production - Secretary of Energy Advisory Board 90-day Interim Report on Shale Gas Production - Secretary of Energy Advisory Board The Shale Gas...

  9. La Revolucin del Shale Gas Profesor: Hugh Rudnick

    E-Print Network [OSTI]

    Rudnick, Hugh

    La Revolución del Shale Gas Mayo 2011 Profesor: Hugh Rudnick Profesional Externo: Verónica Cortés........................................................................................................................................ 6 ¿Qué es el Shale Gas...................................................................................................................................... 7 Shale Gas

  10. Oil and Gas CDT Using noble gas isotopes to develop a mechanistic understanding of shale gas

    E-Print Network [OSTI]

    Henderson, Gideon

    Oil and Gas CDT Using noble gas isotopes to develop a mechanistic understanding of shale gas, desorbtion, tracing, migration Overview The discovery of shale gas in UK Shales demonstrates how important and no doubt will vary from shale to shale. An improved understanding of the controls on gas production from

  11. Shale Gas Production

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for On-Highway4,1,50022,3,,,,6,1,9,1,50022,3,,,,6,1,Decade Energy I I' a eviequestionnairesMillionNovember 200061:WaterGas

  12. ,"New York Natural Gas Gross Withdrawals from Shale Gas (Million...

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

    ,,"(202) 586-8800",,,"2262015 9:43:21 AM" "Back to Contents","Data 1: New York Natural Gas Gross Withdrawals from Shale Gas (Million Cubic Feet)"...

  13. U.S. Shale Gas and Shale Oil Plays Review of Emerging Resources...

    Gasoline and Diesel Fuel Update (EIA)

    most shale gas and shale oil wells are only a few years old, their long-term productivity is untested. Consequently, the long-term production profiles of shale wells and...

  14. Parameter identification in large-scale models for oil and gas production

    E-Print Network [OSTI]

    Van den Hof, Paul

    Parameter identification in large-scale models for oil and gas production Jorn F.M. Van Doren: Models used for model-based (long-term) operations as monitoring, control and optimization of oil and gas information to the identification problem. These options are illustrated with examples taken from oil and gas

  15. Large Scale Distribution of Stochastic Control Algorithms for Gas Storage Constantinos Makassikis, Stephane Vialle

    E-Print Network [OSTI]

    Vialle, Stéphane

    Large Scale Distribution of Stochastic Control Algorithms for Gas Storage Valuation Constantinos algorithm which is applied to gas storage valuation, and presents its experimental performances on two PC achieved in the field of gas storage valuation (see [2, 3] for example). As a result, many different price

  16. What is shale gas and why is it important?

    Reports and Publications (EIA)

    2012-01-01T23:59:59.000Z

    Shale gas refers to natural gas that is trapped within shale formations. Shales are fine-grained sedimentary rocks that can be rich sources of petroleum and natural gas. Over the past decade, the combination of horizontal drilling and hydraulic fracturing has allowed access to large volumes of shale gas that were previously uneconomical to produce. The production of natural gas from shale formations has rejuvenated the natural gas industry in the United States.

  17. Shale gas production: potential versus actual greenhouse gas emissions*

    E-Print Network [OSTI]

    Shale gas production: potential versus actual greenhouse gas emissions* Francis O, monitor and verify greenhouse gas emissions and climatic impacts. This reprint is one of a series intended Environ. Res. Lett. 7 (2012) 044030 (6pp) doi:10.1088/1748-9326/7/4/044030 Shale gas production: potential

  18. Characterization of Gas Shales by X-ray Raman Spectroscopy |...

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

    Drew Pomerantz, Schlumberger Unconventional hydrocarbon resources such as gas shale and oil-bearing shale have emerged recently as economically viable sources of energy,...

  19. Development of the Natural Gas Resources in the Marcellus Shale

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    be the most productive areas of the shale. The large amount of industrial activity necessary for shale gasDevelopment of the Natural Gas Resources in the Marcellus Shale New York, Pennsylvania, Virginia for informational purposes only and does not support or oppose development of the Marcellus Shale natural gas

  20. Process Design and Integration of Shale Gas to Methanol 

    E-Print Network [OSTI]

    Ehlinger, Victoria M.

    2013-02-04T23:59:59.000Z

    pathways for the production of methanol from shale gas. The composition of the shale gas feedstock is assumed to come from the Barnett Shale Play located near Fort Worth, Texas, which is currently the most active shale gas play in the US. Process...

  1. Evaluation of Devonian shale gas reservoirs

    SciTech Connect (OSTI)

    Vanorsdale, C.R.

    1987-05-01T23:59:59.000Z

    The evaluation of predominantly shale reservoirs presents a problem for engineers traditionally educated either to correct for or to ignore such lithologic zones. Currently accepted evaluation techniques and their applicability are discussed to determine the best way to forecast remaining recoverable gas reserves from the Devonian shales of the Appalachian basin. This study indicates that rate/time decline-curve analysis is the most reliable technique and presents typical decline curves based on production data gathered from 508 shale wells in a three-state study area. The resultant type curves illustrate a dual- (or multiple-) porosity mechanism that violates standard decline-curve analysis guidelines. The results, however, are typical not only for the Devonian shales but for all naturally fractured, multilayered, or similar shale reservoirs.

  2. Shale Gas Production: Potential versus Actual GHG Emissions

    E-Print Network [OSTI]

    O'Sullivan, Francis

    Estimates of greenhouse gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level of GHG emissions from shale gas well hydraulic fracturing operations in the United States during ...

  3. Life-cycle analysis of shale gas and natural gas.

    SciTech Connect (OSTI)

    Clark, C.E.; Han, J.; Burnham, A.; Dunn, J.B.; Wang, M. (Energy Systems); ( EVS)

    2012-01-27T23:59:59.000Z

    The technologies and practices that have enabled the recent boom in shale gas production have also brought attention to the environmental impacts of its use. Using the current state of knowledge of the recovery, processing, and distribution of shale gas and conventional natural gas, we have estimated up-to-date, life-cycle greenhouse gas emissions. In addition, we have developed distribution functions for key parameters in each pathway to examine uncertainty and identify data gaps - such as methane emissions from shale gas well completions and conventional natural gas liquid unloadings - that need to be addressed further. Our base case results show that shale gas life-cycle emissions are 6% lower than those of conventional natural gas. However, the range in values for shale and conventional gas overlap, so there is a statistical uncertainty regarding whether shale gas emissions are indeed lower than conventional gas emissions. This life-cycle analysis provides insight into the critical stages in the natural gas industry where emissions occur and where opportunities exist to reduce the greenhouse gas footprint of natural gas.

  4. Shale Gas Production: Potential versus Actual GHG Emissions

    E-Print Network [OSTI]

    Shale Gas Production: Potential versus Actual GHG Emissions Francis O'Sullivan and Sergey Paltsev://globalchange.mit.edu/ Printed on recycled paper #12;1 Shale Gas Production: Potential versus Actual GHG Emissions Francis O'Sullivan* and Sergey Paltsev* Abstract Estimates of greenhouse gas (GHG) emissions from shale gas production and use

  5. Technically recoverable Devonian shale gas in Ohio

    SciTech Connect (OSTI)

    Kuushraa, V.A.; Wicks, D.E.; Sawyer, W.K.; Esposito, P.R.

    1983-07-01T23:59:59.000Z

    The technically recoverable gas from Devonian shale (Lower and Middle Huron) in Ohio is estimated to range from 6.2 to 22.5 Tcf, depending on the stimulation method and pattern size selected. This estimate of recovery is based on the integration of the most recent data and research on the Devonian Age gas-bearing shales of Ohio. This includes: (1) a compilation of the latest geologic and reservoir data for the gas in-place; (2) analysis of the key productive mechanisms; and, (3) examination of alternative stimulation and production strategies for most efficiently recovering this gas. Beyond a comprehensive assembly of the data and calculation of the technically recoverable gas, the key findings of this report are as follows: a substantial volume of gas is technically recoverable, although advanced (larger scale) stimulation technology will be required to reach economically attractive gas production rates in much of the state; well spacing in certain of the areas can be reduced by half from the traditional 150 to 160 acres per well without severely impairing per-well gas recovery; and, due to the relatively high degree of permeability anisotropy in the Devonian shales, a rectangular, generally 3 by 1 well pattern leads to optimum recovery. Finally, although a consistent geological interpretation and model have been constructed for the Lower and Middle Huron intervals of the Ohio Devonian shale, this interpretation is founded on limited data currently available, along with numerous technical assumptions that need further verification. 11 references, 21 figures, 32 tables.

  6. Reservoir and stimulation analysis of a Devonian Shale gas field

    E-Print Network [OSTI]

    Shaw, James Stanley

    1986-01-01T23:59:59.000Z

    . The Gas Research Institute (GRI) which sponsored this work under GRI Contract No. 5084-213-0980, "Analysis of Eastern Devonian Gas Shales Production Data;" 2. Doug Terry and Joe Petty with Union Drilling, Inc. who showed great interest in this study... and enhance productivity. ~St h The Devonian Shales in the Mason County Field study area can be subdivided using gamma ray logs as follows (in descending order): Upper Devonian Undivided, Huron Shale Member of the Ohio Shale, Java Formation, Angola Shale...

  7. Shale Gas Production Theory and Case Analysis We researched the process of oil recovery and shale gas

    E-Print Network [OSTI]

    Ge, Zigang

    Shale Gas Production Theory and Case Analysis (Siemens) We researched the process of oil recovery and shale gas recovery and compare the difference between conventional and unconventional gas reservoir and recovery technologies. Then we did theoretical analysis on the shale gas production. According

  8. Shale Gas and the Environment: Critical Need for a

    E-Print Network [OSTI]

    McGaughey, Alan

    Shale Gas and the Environment: Critical Need for a Government­University­Industry Research Initiative P o l i c y m a k e r G u i d e #12;Shale gas production is increasing at a rapid rate initiative is needed to fill critical gaps in knowledge at the interface of shale gas development

  9. Shale Gas and the Environment: Critical Need for a

    E-Print Network [OSTI]

    McGaughey, Alan

    Shale Gas and the Environment: Critical Need for a Government­University­Industry Research Initiative P O L I C Y M A K E R G U I D E #12;Shale gas production is increasing at a rapid rate initiative is needed to fill critical gaps in knowledge at the interface of shale gas development

  10. Risks and Risk Governance in Unconventional Shale Gas Development

    E-Print Network [OSTI]

    Jackson, Robert B.

    Risks and Risk Governance in Unconventional Shale Gas Development Mitchell J. Small,*, Paul C, Desert Research Institute, Reno, Nevada 89512, United States 1. INTRODUCTION The recent U.S. shale gas Issue: Understanding the Risks of Unconventional Shale Gas Development Published: July 1, 2014 A broad

  11. Review of Emerging Resources: U.S. Shale Gas and Shale Oil Plays

    Reports and Publications (EIA)

    2011-01-01T23:59:59.000Z

    To gain a better understanding of the potential U.S. domestic shale gas and shale oil resources, the Energy Information Administration (EIA) commissioned INTEK, Inc. to develop an assessment of onshore lower 48 states technically recoverable shale gas and shale oil resources. This paper briefly describes the scope, methodology, and key results of the report and discusses the key assumptions that underlie the results.

  12. Shale we look for gas?............................................................................. 1 The Marcellus shale--An old "new" gas reservoir in Pennsylvania ............ 2

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    #12;CONTENTS Shale we look for gas?............................................................................. 1 The Marcellus shale--An old "new" gas reservoir in Pennsylvania ............ 2 Meet the staff, the contour interval should be 6 inches. #12;STATE GEOLOGIST'S EDITORIAL Shale We Look For Gas? Recently, you

  13. Process Design and Integration of Shale Gas to Methanol

    E-Print Network [OSTI]

    Ehlinger, Victoria M.

    2013-02-04T23:59:59.000Z

    Recent breakthroughs in horizontal drilling and hydraulic fracturing technology have made huge reservoirs of previously untapped shale gas and shale oil formations available for use. These new resources have already made a significant impact...

  14. Oil shale retorting with steam and produced gas

    SciTech Connect (OSTI)

    Merrill, L.S. Jr.; Wheaton, L.D.

    1991-08-20T23:59:59.000Z

    This patent describes a process for retorting oil shale in a vertical retort. It comprises introducing particles of oil shale into the retort, the particles of oil shale having a minimum size such that the particles are retained on a screen having openings 1/4 inch in size; contacting the particles of oil shale with hot gas to heat the particles of oil shale to a state of pyrolysis, thereby producing retort off-gas; removing the off-gas from the retort; cooling the off-gas; removing oil from the cooled off-gas; separating recycle gas from the off-gas, the recycle gas comprising steam and produced gas, the steam being present in amount, by volume, of at least 50% of the recycle gas so as to increase the yield of sand oil; and heating the recycle gas to form the hot gas.

  15. Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction

    E-Print Network [OSTI]

    Jackson, Robert B.

    Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas Pennsylvania, ex- amining natural gas concentrations and isotopic signatures with proximity to shale gas wells this transformation, with shale gas and other unconventional sources now yielding more than one- half of all US

  16. Zero Discharge Water Management for Horizontal Shale Gas Well Development

    SciTech Connect (OSTI)

    Paul Ziemkiewicz; Jennifer Hause; Raymond Lovett; David Locke Harry Johnson; Doug Patchen

    2012-03-31T23:59:59.000Z

    Hydraulic fracturing technology (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas (gas) reserves in the Devonian-age Marcellus Shale Formation (Marcellus) of the Appalachian Basin. The most-efficient technique for stimulating Marcellus gas production involves hydraulic fracturing (injection of a water-based fluid and sand mixture) along a horizontal well bore to create a series of hydraulic fractures in the Marcellus. The hydraulic fractures free the shale-trapped gas, allowing it to flow to the well bore where it is conveyed to pipelines for transport and distribution. The hydraulic fracturing process has two significant effects on the local environment. First, water withdrawals from local sources compete with the water requirements of ecosystems, domestic and recreational users, and/or agricultural and industrial uses. Second, when the injection phase is over, 10 to 30% of the injected water returns to the surface. This water consists of flowback, which occurs between the completion of fracturing and gas production, and produced water, which occurs during gas production. Collectively referred to as returned frac water (RFW), it is highly saline with varying amounts of organic contamination. It can be disposed of, either by injection into an approved underground injection well, or treated to remove contaminants so that the water meets the requirements of either surface release or recycle use. Depending on the characteristics of the RFW and the availability of satisfactory disposal alternatives, disposal can impose serious costs to the operator. In any case, large quantities of water must be transported to and from well locations, contributing to wear and tear on local roadways that were not designed to handle the heavy loads and increased traffic. The search for a way to mitigate the situation and improve the overall efficiency of shale gas production suggested a treatment method that would allow RFW to be used as make-up water for successive fracs. RFW, however, contains dissolved salts, suspended sediment and oils that may interfere with fracking fluids and/or clog fractures. This would lead to impaired well productivity. The major technical constraints to recycling RFW involves: identification of its composition, determination of industry standards for make-up water, and development of techniques to treat RFW to acceptable levels. If large scale RFW recycling becomes feasible, the industry will realize lower transportation and disposal costs, environmental conflicts, and risks of interruption in well development schedules.

  17. The U.S. Natural Gas and Shale Production Outlook

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

    Natural Gas and Shale Production Outlook for North American Gas Forum September 29, 2014 by Adam Sieminski, Administrator The U.S. has experienced a rapid increase in natural gas...

  18. Pennsylvania Energy Impacts Assessment Report 1: Marcellus Shale Natural Gas and Wind

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Pennsylvania Energy Impacts Assessment Report 1: Marcellus Shale Natural Gas and Wind #12;1 Pennsylvania Energy Impacts Assessment Report 1: Marcellus Shale Natural Gas and Wind November 15, 2010 Author.....................................................................................................................3 Marcellus Shale Natural Gas

  19. Water management practices used by Fayetteville shale gas producers.

    SciTech Connect (OSTI)

    Veil, J. A. (Environmental Science Division)

    2011-06-03T23:59:59.000Z

    Water issues continue to play an important role in producing natural gas from shale formations. This report examines water issues relating to shale gas production in the Fayetteville Shale. In particular, the report focuses on how gas producers obtain water supplies used for drilling and hydraulically fracturing wells, how that water is transported to the well sites and stored, and how the wastewater from the wells (flowback and produced water) is managed. Last year, Argonne National Laboratory made a similar evaluation of water issues in the Marcellus Shale (Veil 2010). Gas production in the Marcellus Shale involves at least three states, many oil and gas operators, and multiple wastewater management options. Consequently, Veil (2010) provided extensive information on water. This current study is less complicated for several reasons: (1) gas production in the Fayetteville Shale is somewhat more mature and stable than production in the Marcellus Shale; (2) the Fayetteville Shale underlies a single state (Arkansas); (3) there are only a few gas producers that operate the large majority of the wells in the Fayetteville Shale; (4) much of the water management information relating to the Marcellus Shale also applies to the Fayetteville Shale, therefore, it can be referenced from Veil (2010) rather than being recreated here; and (5) the author has previously published a report on the Fayetteville Shale (Veil 2007) and has helped to develop an informational website on the Fayetteville Shale (Argonne and University of Arkansas 2008), both of these sources, which are relevant to the subject of this report, are cited as references.

  20. Oil and Gas CDT Structural and depositional controls on shale gas resources in

    E-Print Network [OSTI]

    Henderson, Gideon

    Oil and Gas CDT Structural and depositional controls on shale gas resources in the UK), http://www.bgs.ac.uk/staff/profiles/0688.html · Laura Banfield (BP) Key Words Shale gas, Bowland of structural and depositional controls on shale gas potential in the UK with a synthesis of a series

  1. Shale Gas Glossary | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary of EnergyFocus Group HSS/UnionGlossary Shale Gas Glossary

  2. Shale gas - what happened? | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary of EnergyFocus Group HSS/UnionGlossary Shale Gas

  3. 90-day Second Report on Shale Gas Production - Secretary of Energy...

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

    90-day Second Report on Shale Gas Production - Secretary of Energy Advisory Board 90-day Second Report on Shale Gas Production - Secretary of Energy Advisory Board Novemeber 18,...

  4. Paper #194973 GEOCHEMICAL CHARACTERIZATION OF THE RESERVOIR HOSTING SHALE-GAS AND OIL in

    E-Print Network [OSTI]

    Paper #194973 GEOCHEMICAL CHARACTERIZATION OF THE RESERVOIR HOSTING SHALE-GAS AND OIL a reservoir for shale-gas and oil. We examined organic-rich black shale, known as Macasty shale, of Upper SHALE-GAS AND OIL in THE SUBSURFACE OF ANTICOSTI ISLAND, CANADA Key Words: Provenance, Anticosti Island

  5. Water's Journey Through the Shale Gas Drilling and

    E-Print Network [OSTI]

    Lee, Dongwon

    Water's Journey Through the Shale Gas Drilling and Production Processes in the Mid-Atlantic Region: Marcellus shale drilling in progress, Beaver Run Reservoir, Westmoreland County. Credit: Robert Donnan. Gas. This publication fo- cuses mostly on Pennsylvania because it has the most Marcellus drilling activity of any state

  6. Optimization Models for Shale Gas Water Management Linlin Yang

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    Optimization Models for Shale Gas Water Management Linlin Yang , Jeremy Manno and Ignacio E. Grossmann Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA Carrizo Oil & Gas and multiple scenarios from historical data. Two examples representative of the Marcellus Shale play

  7. Economic analysis of shale gas wells in the United States

    E-Print Network [OSTI]

    Hammond, Christopher D. (Christopher Daniel)

    2013-01-01T23:59:59.000Z

    Natural gas produced from shale formations has increased dramatically in the past decade and has altered the oil and gas industry greatly. The use of horizontal drilling and hydraulic fracturing has enabled the production ...

  8. Shale Gas Application in Hydraulic Fracturing Market is likely...

    Open Energy Info (EERE)

    Shale Gas Application in Hydraulic Fracturing Market is likely to grow at a rate of 6.46%, owing to increased natural gas demand Home > Groups > Renewable Energy RFPs Wayne31jan's...

  9. Forecasting long-term gas production from shale

    E-Print Network [OSTI]

    Cueto-Felgueroso, Luis

    Oil and natural gas from deep shale formations are transforming the United States economy and its energy outlook. Back in 2005, the US Energy Information Administration published projections of United States natural gas ...

  10. Porosity and permeability of Eastern Devonian gas shale

    SciTech Connect (OSTI)

    Soeder, D.J.

    1988-03-01T23:59:59.000Z

    High-precision core analysis has been performed on eight Devonian gas shale samples from the Appalachian basin. Seven of the core samples consist of the Upper Devonian Age Huron member of the Ohio shale, six of which came from wells in the Ohio River valley, and the seventh from a well in east-central Kentucky. The eight core sample consists of Middle Devonian Age Marcellus shale obtained from a well in Morgantown, WV. The core analysis was originally intended to supply accurate input data for Devonian shale numerical reservoir simulation. Unexpectedly, the work has identified a number of geological factors that influence gas production from organic-rich shales. The presence of petroleum as a mobile liquid phase in the pores of all seven Huron shale samples effectively limits the gas porosity of this formation to less than 0.2%, and gas permeability of the rock matrix is commonly less than 0.1 ..mu..d at reservoir stress. The Marcellus shale core, on the other hand, was free of a mobile liquid phase and had a measured gas porosity of approximately 10%, and a surprisingly high permeability of 20 ..mu..d. Gas permeability of the Marcellus was highly stress-dependent, however; doubling the net confining stress reduced the permeability by nearly 70%. The conclusion reached from this study is that the gas productivity potential of Devonian shale in the Appalachian basin is influenced by a wide range of geologic factors. Organic content, thermal maturity, natural fracture spacing, and stratigraphic relationships between gray and black shales all affect gas content and mobility. Understanding these factors can improve the exploration and development of Devonian shale gas.

  11. Large Scale U.S. Unconventional Fuels Production and the Role of Carbon Dioxide Capture and Storage Technologies in Reducing Their Greenhouse Gas Emissions

    SciTech Connect (OSTI)

    Dooley, James J.; Dahowski, Robert T.

    2008-11-18T23:59:59.000Z

    This paper examines the role that carbon dioxide capture and storage technologies could play in reducing greenhouse gas emissions if a significant unconventional fuels industry were to develop within the United States. Specifically, the paper examines the potential emergence of a large scale domestic unconventional fuels industry based on oil shale and coal-to-liquids (CTL) technologies. For both of these domestic heavy hydrocarbon resources, this paper models the growth of domestic production to a capacity of 3 MMB/d by 2050. For the oil shale production case, we model large scale deployment of an in-situ retorting process applied to the Eocene Green River formation of Colorado, Utah, and Wyoming where approximately 75% of the high grade oil shale resources within the United States lies. For the CTL case, we examine a more geographically dispersed coal-based unconventional fuel industry. This paper examines the performance of these industries under two hypothetical climate policies and concludes that even with the wide scale availability of cost effective carbon dioxide capture and storage technologies, these unconventional fuels production industries would be responsible for significant increases in CO2 emissions to the atmosphere. The oil shale production facilities required to produce 3MMB/d would result in net emissions to the atmosphere of between 3000-7000 MtCO2 in addition to storing potentially 1000 to 5000 MtCO2 in regional deep geologic formations in the period up to 2050. A similarly sized domestic CTL industry could result in 4000 to 5000 MtCO2 emitted to the atmosphere in addition to potentially 21,000 to 22,000 MtCO2 stored in regional deep geologic formations over the same period up to 2050. Preliminary analysis of regional CO2 storage capacity in locations where such facilities might be sited indicates that there appears to be sufficient storage capacity, primarily in deep saline formations, to accommodate the CO2 from these industries. However, additional analyses plus detailed regional and site characterization is needed, along with a closer examination of competing storage demands.

  12. Occurrence of Multiple Fluid Phases Across a Basin, in the Same Shale Gas Formation – Eagle Ford Shale Example 

    E-Print Network [OSTI]

    Tian, Yao

    2014-04-29T23:59:59.000Z

    Shale gas and oil are playing a significant role in US energy independence by reversing declining production trends. Successful exploration and development of the Eagle Ford Shale Play requires reservoir characterization, recognition of fluid...

  13. Technically recoverable Devonian shale gas in West Virginia

    SciTech Connect (OSTI)

    Kuuskraa, V.A.; Wicks, D.E.

    1984-12-01T23:59:59.000Z

    This report evaluates the natural gas potential of the Devonian Age shales of West Virginia. For this, the study: (1) compiles the latest geological and reservoir data to establish the gas in-place; (2) analyzes and models the dominant gas production mechanisms; and (3) examines alternative well stimulation and production strategies for most efficiently recovering the in-place gas. The major findings of the study include the following: (1) The technically recoverable gas from Devonian shale (Huron, Rhinestreet, and Marcellus intervals) in West Virginia is estimated to range from 11 to 44 trillion cubic feet. (2) The Devonian shales in this state entail great geological diversity; the highly fractured, permeable shales in the southwest respond well to traditional development practices while the deep, tight shales in the eastern and northern parts of the state will require new, larger scale well stimulation technology. (3) Beyond the currently developed Huron and Rhinestreet shale intervals, the Marcellus shale offers a third attractive gas zone, particularly in the north central portion of the state. 21 references, 53 figures, 27 tables.

  14. APPLICATIONS OF CFD METHOD TO GAS MIXING ANALYSIS IN A LARGE-SCALED TANK

    SciTech Connect (OSTI)

    Lee, S; Richard Dimenna, R

    2007-03-19T23:59:59.000Z

    The computational fluid dynamics (CFD) modeling technique was applied to the estimation of maximum benzene concentration for the vapor space inside a large-scaled and high-level radioactive waste tank at Savannah River site (SRS). The objective of the work was to perform the calculations for the benzene mixing behavior in the vapor space of Tank 48 and its impact on the local concentration of benzene. The calculations were used to evaluate the degree to which purge air mixes with benzene evolving from the liquid surface and its ability to prevent an unacceptable concentration of benzene from forming. The analysis was focused on changing the tank operating conditions to establish internal recirculation and changing the benzene evolution rate from the liquid surface. The model used a three-dimensional momentum coupled with multi-species transport. The calculations included potential operating conditions for air inlet and exhaust flows, recirculation flow rate, and benzene evolution rate with prototypic tank geometry. The flow conditions are assumed to be fully turbulent since Reynolds numbers for typical operating conditions are in the range of 20,000 to 70,000 based on the inlet conditions of the air purge system. A standard two-equation turbulence model was used. The modeling results for the typical gas mixing problems available in the literature were compared and verified through comparisons with the test results. The benchmarking results showed that the predictions are in good agreement with the analytical solutions and literature data. Additional sensitivity calculations included a reduced benzene evolution rate, reduced air inlet and exhaust flow, and forced internal recirculation. The modeling results showed that the vapor space was fairly well mixed and that benzene concentrations were relatively low when forced recirculation and 72 cfm ventilation air through the tank boundary were imposed. For the same 72 cfm air inlet flow but without forced recirculation, the heavier benzene gas was stratified. The results demonstrated that benzene concentrations were relatively low for typical operating configurations and conditions. Detailed results and the cases considered in the calculations will be discussed here.

  15. COLLOQUIUM: "The Environmental Footprint of Shale Gas Extraction...

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

    January 9, 2013, 4:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: "The Environmental Footprint of Shale Gas Extraction and Hydraulic Fracturing" Professor Robert Jackson Duke...

  16. Data Bias in Rate Transient Analysis of Shale Gas Wells

    E-Print Network [OSTI]

    Agnia, Ammar Khalifa Mohammed

    2012-07-16T23:59:59.000Z

    functions involve rate as essential constituent, the superposition time is affected greatly with rate issues. Production data of shale gas wells are usually subjected to operating issues that yield noise and outliers. Whenever the rate data is noisy...

  17. Analysis of Water Flowback Data in Gas Shale Reservoirs

    E-Print Network [OSTI]

    Aldaif, Hussain

    2014-09-24T23:59:59.000Z

    Properties of both shale gas reservoirs and hydraulic fractures are usually estimated by analyzing hydrocarbon production data while water data is typically ignored. This study introduces a new method to estimate the effective fracture volume...

  18. Assessment of Eagle Ford Shale Oil and Gas Resources

    E-Print Network [OSTI]

    Gong, Xinglai

    2013-07-30T23:59:59.000Z

    , and to assess Eagle Ford shale oil and gas reserves, contingent resources, and prospective resources. I first developed a Bayesian methodology to generate probabilistic decline curves using Markov Chain Monte Carlo (MCMC) that can quantify the reserves...

  19. TOPIC: Shale Gas Emissions w/David Allen, Energy Institute HOST: Jeff Tester and Todd Cowen

    E-Print Network [OSTI]

    Angenent, Lars T.

    TOPIC: Shale Gas Emissions w/David Allen, Energy Institute HOST: Jeff Tester and Todd Cowen DATE fracturing of shale formations (shale gas) is projected by the Energy Information Administration to become the nation's energy landscape. However, the environmental impacts associated with ``fracking'' for shale gas

  20. 3D multi-scale imaging of experimental fracture generation in shale gas reservoirs.

    E-Print Network [OSTI]

    Henderson, Gideon

    in research and shale unconventional reservoirs that will provide you with the skills to enter the oil and gas3D multi-scale imaging of experimental fracture generation in shale gas reservoirs. Supervisory-grained organic carbon-rich rocks (shales) are increasingly being targeted as shale gas "reservoirs". Due

  1. FreezeFrac Improves the Productivity of Gas Shales S. Enayatpour, E. Van Oort, T. Patzek, University of Texas At Austin

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    to unconventional hydrocarbon reservers such as oil shales, gas shales, tight gas sands, coalbed methane, and gas

  2. Porosity and permeability of eastern Devonian gas shale

    SciTech Connect (OSTI)

    Soeder, D.J.

    1986-01-01T23:59:59.000Z

    High-precision core analysis has been performed on eight samples of Devonian gas shale from the Appalachian Basin. Seven of the core samples consist of the Upper Devonian age Huron Member of the Ohio Shale, six of which came from wells in the Ohio River valley, and the seventh from a well in east-central Kentucky. The eighth core sample consists of Middle Devonian age Marcellus Shale obtained from a well in Morgantown, West Virginia. The core analysis was originally intended to supply accurate input data for Devonian shale numerical reservoir simulation. Unexpectedly, the results have also shown that there are a number of previously unknown factors which influence or control gas production from organic-rich shales of the Appalachian Basin. The presence of petroleum as a mobile liquid phase in the pores of all seven Huron Shale samples effectively limits the gas porosity of this formation to less than 0.2%, and permeability of the rock matrix to gas is less than 0.1 microdarcy at reservoir stress. The Marcellus Shale core, on the other hand, was free of a mobile liquid phase and had a measured gas porosity of approximately 10% under stress with a fairly strong ''adsorption'' component. Permeability to gas (K/sub infinity/ was highly stress-dependent, ranging from about 20 microdarcies at a net stress of 3000 psi down to about 5 microdarcies at a net stress of 6000 psi. The conclusion reached from this study is that Devonian shale in the Appalachian Basin is a considerably more complex natural gas resource than previously thought. Production potential varies widely with geographic location and stratigraphy, just as it does with other gas and oil resources. 15 refs., 8 figs., 3 tabs.

  3. General screening criteria for shale gas reservoirs and production data analysis of Barnett shale

    E-Print Network [OSTI]

    Deshpande, Vaibhav Prakashrao

    2009-05-15T23:59:59.000Z

    Shale gas reservoirs are gaining importance in United States as conventional oil and gas resources are dwindling at a very fast pace. The purpose of this study is twofold. First aim is to help operators with simple screening criteria which can help...

  4. NATURAL GAS FROM SHALE: Questions and Answers Shale Gas Development Challenges -

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaeferApril 1,(EAC)TABLEChallenges are Associated with Shale GasIt Seems LikeAir

  5. NATURAL GAS FROM SHALE: Questions and Answers Shale Gas Development Challenges -

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaeferApril 1,(EAC)TABLEChallenges are Associated with Shale GasIt Seems

  6. Water management technologies used by Marcellus Shale Gas Producers.

    SciTech Connect (OSTI)

    Veil, J. A.; Environmental Science Division

    2010-07-30T23:59:59.000Z

    Natural gas represents an important energy source for the United States. According to the U.S. Department of Energy's (DOE's) Energy Information Administration (EIA), about 22% of the country's energy needs are provided by natural gas. Historically, natural gas was produced from conventional vertical wells drilled into porous hydrocarbon-containing formations. During the past decade, operators have increasingly looked to other unconventional sources of natural gas, such as coal bed methane, tight gas sands, and gas shales.

  7. Pressure Transient Analysis and Production Analysis for New Albany Shale Gas Wells 

    E-Print Network [OSTI]

    Song, Bo

    2010-10-12T23:59:59.000Z

    Shale gas has become increasingly important to United States energy supply. During recent decades, the mechanisms of shale gas storage and transport were gradually recognized. Gas desorption was also realized and quantitatively described. Models...

  8. Review article Oil and gas wells and their integrity: Implications for shale and

    E-Print Network [OSTI]

    Jackson, Robert B.

    Review article Oil and gas wells and their integrity: Implications for shale and unconventional by Elsevier Ltd. 1. Introduction The rapid expansion of shale gas and shale oil exploration and exploitation xxx Keywords: Shale Fracking Integrity Barrier Integrity Wells a b s t r a c t Data from around

  9. Eastern Gas Shales Project outgassing analysis. Special report

    SciTech Connect (OSTI)

    Streib, D.L.

    1980-02-01T23:59:59.000Z

    Two methods are used on the Eastern Gas Shales Project to measure the gas volume of encapsulated shale samples. The direct method measures pressure and volume and is initiated almost immediately upon encapsulation of the sample. A second method measures pressure, volume, and composition, and is initiated after pressure is allowed to build up over several weeks. A combination of the two methods has been used on selected samples, and yields more data as it allows extrapolation to account for gas lost prior to encapsulation. The stratigraphic horizons, characterized by dark shales with high organic and high carbon content and a relatively high gamma ray intensity of 200+ API units also have high gas contents (relative to other units within the same well). The Lower Huron, Rhinestreet, and Marcellus Shales are high in gas content relative to other stratigraphic units at the same sites. The difference in gas content of the same stratigraphic horizon between well sites appears to be controlled by the thermal maturity. Kinetic studies have shown that, in some samples, significant amounts of gas are released after the time when the gas volume would be initially measured. Additional work needs to be performed to determine why the rates and volume of gas released vary between samples.

  10. Simulating the Effect of Water on the Fracture System of Shale Gas Wells 

    E-Print Network [OSTI]

    Hamam, Hassan Hasan H.

    2011-10-21T23:59:59.000Z

    It was observed that many hydraulically fractured horizontal shale gas wells exhibit transient linear flow behavior. A half-slope on a type curve represents this transient linear flow behavior. Shale gas wells show a significant skin effect which...

  11. Shale Gas Glossary | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015ParentsMiddle|SecurityDepartment ofSeptemberAir ShaleWater Shale

  12. Evaluation of the eastern gas shales in Pennsylvania

    SciTech Connect (OSTI)

    Not Available

    1981-01-01T23:59:59.000Z

    To evaluate the potential of the Devonian shale as a source of natural gas, the US Department of Energy (DOE) has undertaken the Eastern Gas Shales Project (EGSP). The EGSP is designed not only to identify the resource, but also to test improved methods of inducing permeability to facilitate gas drainage, collection, and production. The ultimate goal of this project is to increase the production of gas from the eastern shales through advanced exploration and exploitation techniques. The purpose of this report is to inform the general public and interested oil and gas operators about EGSP results as they pertain to the Devonian gas shales of the Appalachian basin in Pennsylvania. Geologic data and interpretations are summarized and areas where the accumulation of gas may be large enough to justify commercial production are outlined. Because the data presented in this report are generalized and not suitable for evaluation of specific sites for exploration, the reader should consult the various reports cited for more detail and discussion of the data, concepts, and interpretations presented.

  13. Eastern gas shales bibliography selected annotations: gas, oil, uranium, etc. Citations in bituminous shales worldwide

    SciTech Connect (OSTI)

    Hall, V.S. (comp.)

    1980-06-01T23:59:59.000Z

    This bibliography contains 2702 citations, most of which are annotated. They are arranged by author in numerical order with a geographical index following the listing. The work is international in scope and covers the early geological literature, continuing through 1979 with a few 1980 citations in Addendum II. Addendum I contains a listing of the reports, well logs and symposiums of the Unconventional Gas Recovery Program (UGR) through August 1979. There is an author-subject index for these publications following the listing. The second part of Addendum I is a listing of the UGR maps which also has a subject-author index following the map listing. Addendum II includes several important new titles on the Devonian shale as well as a few older citations which were not found until after the bibliography had been numbered and essentially completed. A geographic index for these citations follows this listing.

  14. Forecasting Gas Production in Organic Shale with the Combined Numerical Simulation of Gas Diffusion in Kerogen, Langmuir Desorption from

    E-Print Network [OSTI]

    Torres-VerdĂ­n, Carlos

    SPE 159250 Forecasting Gas Production in Organic Shale with the Combined Numerical Simulation algorithm to forecast gas production in organic shale that simultaneously takes into account gas diffusion-than-expected permeability in shale-gas formations, while Langmuir desorption maintains pore pressure. Simulations confirm

  15. Revealing the Large-Scale Structures of Interstellar Gas Associated with the Magellanic SNR N132D

    E-Print Network [OSTI]

    Sano, H; Yoshiike, S; Fukuda, T; Tachihara, K; Inutsuka, S; Kawamura, A; Fujii, K; Mizuno, N; Inoue, T; Onishi, T; Acero, F; Vink, J

    2015-01-01T23:59:59.000Z

    We report preliminary results of large-scale distribution toward the Magellanic supernova remnant N132D using Mopra and Chandra archival datasets. We identified a cavity-like CO structure along the X-ray shell toward the southern half of it. The total mass of associating molecular gas is $\\sim10^4 M_\\odot$, which is smaller than the previous study by an order of magnitude. Further observations using ALMA, ASTE, and Mopra will reveal the detailed spatial structures and its physical conditions.

  16. Private Water Well Testing in Areas Impacted by Marcellus Shale Gas Drilling

    E-Print Network [OSTI]

    Manning, Sturt

    Private Water Well Testing in Areas Impacted by Marcellus Shale Gas Drilling (Updated November 15th in the absence of shale-gas drilling, well owners are strongly encouraged to evaluate their water on a regular review of shale gas drilling in New York State, as well as the most comprehensive collection of data

  17. NBER WORKING PAPER SERIES THE HOUSING MARKET IMPACTS OF SHALE GAS DEVELOPMENT

    E-Print Network [OSTI]

    Habib, Ayman

    NBER WORKING PAPER SERIES THE HOUSING MARKET IMPACTS OF SHALE GAS DEVELOPMENT Lucija Muehlenbachs © notice, is given to the source. #12;The Housing Market Impacts of Shale Gas Development Lucija to control for confounding factors, we recover hedonic estimates of property value impacts from shale gas

  18. Title: Working Together in Shale Gas Policy Hosts: Todd Cowen, Teresa Jordan and Christine Shoemaker

    E-Print Network [OSTI]

    Angenent, Lars T.

    Title: Working Together in Shale Gas Policy Hosts: Todd Cowen, Teresa Jordan and Christine and environmental groups. The Shale Gas Roundtable of the Institute of Politics at the University of Pittsburgh produced a report with several recommendations dealing especially with shale gas research, water use

  19. Exploring the Environmental Effects of Shale Gas Development in the Chesapeake Bay Watershed

    E-Print Network [OSTI]

    Exploring the Environmental Effects of Shale Gas Development in the Chesapeake Bay Watershed STAC Committee). 2013. Exploring the environmental effects of shale gas development in the Chesapeake Bay of shale gas development in the Chesapeake Bay Watershed. The purpose of this workshop was to engage

  20. www.tyndall.ac.uk Shale gas: an updated assessment of

    E-Print Network [OSTI]

    Matthews, Adrian

    , such as oil derived from tar sands. Nevertheless, there are several routes by which shale gas extraction maywww.tyndall.ac.uk Shale gas: an updated assessment of environmental and climate change impacts Summary This report, commissioned by The Co-operative, is an update on our January report, Shale gas

  1. Design of Bulk Railway Terminals for the Shale Oil and Gas Industry C. Tyler Dick1

    E-Print Network [OSTI]

    Barkan, Christopher P.L.

    Page 1 Design of Bulk Railway Terminals for the Shale Oil and Gas Industry C. Tyler Dick1 , P.E., M: Railway transportation is playing a key role in the development of many new shale oil and gas reserves in North America. In the rush to develop new shale oil and gas plays, sites for railway transload terminals

  2. Numerical Modeling of Fractured Shale-Gas and Tight-Gas Reservoirs Using Unstructured Grids

    E-Print Network [OSTI]

    Olorode, Olufemi Morounfopefoluwa

    2012-02-14T23:59:59.000Z

    Various models featuring horizontal wells with multiple induced fractures have been proposed to characterize flow behavior over time in tight gas and shale gas systems. Currently, there is little consensus regarding the effects of non...

  3. Economics and Politics of Shale Gas in Europe

    E-Print Network [OSTI]

    Chyong, Chi Kong; Reiner, David M.

    2015-01-01T23:59:59.000Z

    suppliers (overseas LNG, Middle East and North Africa etc.) are not very promising in the short to medium term. A more problematic question, which affects both the economics of conventional gas supply options to Europe as well as European shale gas... was expected to be an ever-larger net importer of gas and correspondingly many contracts were signed to build out LNG import infrastructure. As late as 2008, the U.S. Energy Information Administration was predicting continued growth in net imports...

  4. Petrology of the Devonian gas-bearing shale along Lake Erie helps explain gas shows

    SciTech Connect (OSTI)

    Broadhead, R.F.; Potter, P.E.

    1980-11-01T23:59:59.000Z

    Comprehensive petrologic study of 136 thin sections of the Ohio Shale along Lake Erie, when combined with detailed stratigraphic study, helps explain the occurrence of its gas shows, most of which occur in the silty, greenish-gray, organic poor Chagrin Shale and Three Lick Bed. Both have thicker siltstone laminae and more siltstone beds than other members of the Ohio Shale and both units also contain more clayshales. The source of the gas in the Chagrin Shale and Three Lick Bed of the Ohio Shale is believed to be the bituminous-rich shales of the middle and lower parts of the underlying Huron Member of the Ohio Shale. Eleven petrographic types were recognized and extended descriptions are provided of the major ones - claystones, clayshales, mudshales, and bituminous shales plus laminated and unlaminated siltstones and very minor marlstones and sandstones. In addition three major types of lamination were identified and studied. Thirty-two shale samples were analyzed for organic carbon, whole rock hydrogen and whole rock nitrogen with a Perkin-Elmer 240 Elemental Analyzer and provided the data base for source rock evaluation of the Ohio Shale.

  5. Flue gas desulfurization : cost and functional analysis of large-scale and proven plants

    E-Print Network [OSTI]

    Tilly, Jean

    1983-01-01T23:59:59.000Z

    Flue Gas Desulfurization is a method of controlling the emission of sulfurs, which causes the acid rain. The following study is based on 26 utilities which burn coal, have a generating capacity of at least 50 Megawatts ...

  6. Associated Shale Gas- From Flares to Rig Power 

    E-Print Network [OSTI]

    Wallace, Elizabeth Michelle

    2014-10-16T23:59:59.000Z

    /D, resulting in the flaring of approximately 266 MMcf/D. The Bakken area is one of the most produced shale oil and condensate formations in the US. Reported volumes for this formation suggest that the amount of associated gas flared is enough to power drilling...

  7. Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development

    E-Print Network [OSTI]

    Walter, M.Todd

    Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development A Report Engineering) W. VA #12;Energy Transitions: A Systems Approach August 2011 version Page 2 Energy Transitions sources globally, some very strong short-term drivers of energy transitions reflect rising concerns over

  8. CONSIDERING SHALE GAS EXTRACTION IN NORTH CAROLINA: LESSONS FROM OTHER

    E-Print Network [OSTI]

    Jackson, Robert B.

    viable in recent years due to advances in horizontal drilling and hydraulic fracturing techniques, which hearings on the issues of horizontal drilling and hydraulic fracturing for shale gas extraction. 3 Unlike prohibits both horizontal drilling and the injection of waste (including hydraulic fracturing fluids

  9. Large Scale Distribution of Stochastic Control Algorithms for Gas Storage Constantinos Makassikis, Stephane Vialle

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    by the gas market prices for a future delivery of energy: · the first one is a one-factor model based as people from the industry of energy and finance in order to provide concrete answers on the use power and memory space while achieving both speedup and size-up: it has been successfully implemented

  10. Shale Gas Opportunities It's no secret that petroleum and natural gas engineers are currently in great

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Shale Gas Opportunities It's no secret that petroleum and natural gas engineers are currently and natural gas engineers design and develop methods for getting oil and gas from underground deposits's Department of Petroleum and Natural Gas Engineering is competitive, with qualified applicants receiving

  11. Synthesis of organic geochemical data from the Eastern Gas Shales

    SciTech Connect (OSTI)

    Zielinski, R.E.; McIver, R.D.

    1982-01-01T23:59:59.000Z

    Over 2400 core and cuttings samples of Upper Devonian shales from wells in the Appalachian, Illinois, and Michigan Basins have been characterized by organic geochemical methods to provide a basis for accelerating the exploitation of this unconventional, gas-rich resource. This work was part of a program initiated to provide industry with criteria for locating the best areas for future drilling and for the development of stimulation methods that will make recovery of the resource economically attractive. The geochemical assessment shows that the shale, in much of the Appalachian, Illinois, and Michigan Basins is source rock that is capable of generating enormous quantities of gas. In some areas the shales are also capable of generating large quantities of oil as well. The limiting factors preventing these sources from realizing most of their potential are their very low permeabilities and the paucity of potential reservoir rocks. This geochemical data synthesis gives direction to future selection of sites for stimulation research projects in the Appalachian Basin by pinpointing those areas where the greatest volumes of gas are contained in the shale matrix. Another accomplishment of the geochemical data synthesis is a new estimate of the total resource of the Appalachian Basin. The new estimate of 2500 TCF is 25 percent greater than the highest previous estimates. This gives greater incentive to government and industry to continue the search for improved stimulation methods, as well as for improved methods for locating the sites where those improved stimulation methods can be most effectively applied.

  12. What is shale gas? | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015ofDepartment of EnergyThe U.S. Department ofFebruary 27, 2015What is shale

  13. Lagrangian Relaxation Based Decompositon for Well Scheduling in Shale-gas Systems

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    Lagrangian Relaxation Based Decompositon for Well Scheduling in Shale-gas Systems Brage Rugstad of mid and late-life wells in shale-gas systems. This state of the wells can be prevented by performing. In this paper, we present a Lagrangian relaxation based scheme for shut-in scheduling of distributed shale multi

  14. Underground Injection Wells as an Option for Disposal of Shale Gas Wastewaters: Policies & Practicality.

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    environments and are very salty, like the Marcellus shale and other oil and gas formations underlying the areaUnderground Injection Wells as an Option for Disposal of Shale Gas Wastewaters: Policies), Region 3. Marcellus Shale Educational Webinar, February 18, 2010 (Answers provide below by Karen Johnson

  15. Unconventional gas resources. [Eastern Gas Shales, Western Gas Sands, Coalbed Methane, Methane from Geopressured Systems

    SciTech Connect (OSTI)

    Komar, C.A. (ed.)

    1980-01-01T23:59:59.000Z

    This document describes the program goals, research activities, and the role of the Federal Government in a strategic plan to reduce the uncertainties surrounding the reserve potential of the unconventional gas resources, namely, the Eastern Gas Shales, the Western Gas Sands, Coalbed Methane, and methane from Geopressured Aquifers. The intent is to provide a concise overview of the program and to identify the technical activities that must be completed in the successful achievement of the objectives.

  16. Evidence of Pressure Dependent Permeability in Long-Term Shale Gas Production and Pressure Transient Responses

    E-Print Network [OSTI]

    Vera Rosales, Fabian 1986-

    2012-12-11T23:59:59.000Z

    The current state of shale gas reservoir dynamics demands understanding long-term production, and existing models that address important parameters like fracture half-length, permeability, and stimulated shale volume assume constant permeability...

  17. Evidence of Pressure Dependent Permeability in Long-Term Shale Gas Production and Pressure Transient Responses 

    E-Print Network [OSTI]

    Vera Rosales, Fabian 1986-

    2012-12-11T23:59:59.000Z

    The current state of shale gas reservoir dynamics demands understanding long-term production, and existing models that address important parameters like fracture half-length, permeability, and stimulated shale volume assume constant permeability...

  18. Speaker to Address Impact of Natural Gas Production on Greenhouse Gas Emissions When used for power generation, Marcellus Shale natural gas can significantly reduce carbon

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    generation, Marcellus Shale natural gas can significantly reduce carbon dioxide emissions, but questions have been raised whether development of shale gas resources results in an overall lower greenhouse gas, "Life Cycle Greenhouse Gas Emissions of Marcellus Shale Gas," appeared in Environmental Research Letters

  19. Trip report for field visit to Fayetteville Shale gas wells.

    SciTech Connect (OSTI)

    Veil, J. A.; Environmental Science Division

    2007-09-30T23:59:59.000Z

    This report describes a visit to several gas well sites in the Fayetteville Shale on August 9, 2007. I met with George Sheffer, Desoto Field Manager for SEECO, Inc. (a large gas producer in Arkansas). We talked in his Conway, Arkansas, office for an hour and a half about the processes and technologies that SEECO uses. We then drove into the field to some of SEECO's properties to see first-hand what the well sites looked like. In 2006, the U.S. Department of Energy's (DOE's) National Energy Technology Laboratory (NETL) made several funding awards under a program called Low Impact Natural Gas and Oil (LINGO). One of the projects that received an award is 'Probabilistic Risk-Based Decision Support for Oil and Gas Exploration and Production Facilities in Sensitive Ecosystems'. The University of Arkansas at Fayetteville has the lead on the project, and Argonne National Laboratory is a partner. The goal of the project is to develop a Web-based decision support tool that will be used by mid- and small-sized oil and gas companies as well as environmental regulators and other stakeholders to proactively minimize adverse ecosystem impacts associated with the recovery of gas reserves in sensitive areas. The project focuses on a large new natural gas field called the Fayetteville Shale. Part of the project involves learning how the natural gas operators do business in the area and the technologies they employ. The field trip on August 9 provided an opportunity to do that.

  20. 409g Implementation of Coordinator Mpc on a Large-Scale Gas Plant Elvira M. B Aske, Dept. of Chemical Engineering, Norwegian Univ of Sci & Tech (NTNU),

    E-Print Network [OSTI]

    Skogestad, Sigurd

    constraints. Most of the distillation columns at the KĂ„rstĂž gas plant have already MPC installed with two409g Implementation of Coordinator Mpc on a Large-Scale Gas Plant Elvira M. B Aske, Dept is not necessary. The key issue is to identify the active "bottleneck" constraint and a coordinator MPC based

  1. Impacts of Shale Gas Wastewater Disposal on Water Quality in Western Pennsylvania

    E-Print Network [OSTI]

    Jackson, Robert B.

    States, oil and gas wastewater is managed through recycling of the wastewater for shale gas operationsImpacts of Shale Gas Wastewater Disposal on Water Quality in Western Pennsylvania Nathaniel R Supporting Information ABSTRACT: The safe disposal of liquid wastes associated with oil and gas production

  2. Oil and Gas CDT Are non-marine organic-rich shales suitable exploration

    E-Print Network [OSTI]

    Henderson, Gideon

    Oil and Gas CDT Are non-marine organic-rich shales suitable exploration targets? The University Hesselbo, University of Exeter http://emps.exeter.ac.uk/csm/staff/sph216 Key Words Shales, depositional environments, diagenesis, sedimentology, geochemistry Overview Shales are of increasing interest not only

  3. Conversion of Waste CO2 and Shale Gas to High-Value Chemicals

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

    Conversion of Waste CO 2 and Shale Gas to High-Value Chemicals Enabling high-yield, low-cost, low- temperature production of chemical intermediates Chemical intermediates,...

  4. The Influence of Shale gas on U.S. Energy and Environmental Policy

    E-Print Network [OSTI]

    Jacoby, H.D.

    The emergence of U.S. shale gas resources to economic viability affects the nation’s energy outlook and the expected role of natural gas in climate policy. Even in the face of the current shale gas boom, however, questions ...

  5. Life cycle greenhouse gas emissions of Marcellus shale gas This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Jaramillo, Paulina

    Life cycle greenhouse gas emissions of Marcellus shale gas This article has been downloaded from.1088/1748-9326/6/3/034014 Life cycle greenhouse gas emissions of Marcellus shale gas Mohan Jiang1 , W Michael Griffin2,3 , Chris greenhouse gas (GHG) emissions from the production of Marcellus shale natural gas and compares its emissions

  6. Shale gas in the southern central area of New York State: Part I. How to find and develop shale gas in New York State

    SciTech Connect (OSTI)

    Not Available

    1981-04-01T23:59:59.000Z

    The Appalachian Basin contains vast volumes of shale gas, and a significant potion of this is contained in three shales in south-central New York - the Rhinestreet, the Geneseo and the Marcellus. The economics of shale-gas exploration in New York are not very attractive to the large oil and gas companies, which seek a rapid return on their investments. The situation may be quite different for organizations which are more concerned with security of supply and stability of cost; these may include manufacturing companies, colleges, hospitals, state institutions and industrial or agricultural cooperatives. For these, production of even a modest 50 Mcf/day/well, declining slowly over many years, would be appealing if it could be guaranteed. To date three wells have been artificially fractured in the Marcellus shale of New York, and all three appear to be producers. This is only a small sample, and one of the wells is known to have encountered natural fractures. However, it does raise the possbility that (while nothing in exploration can be truly guaranteed) the chances of extracting at least some gas from the Marcellus - using modern fracturing techniques - are good. The chances are improved if geological techniques can identify zones of a suitable degree of natural fracturing in the shale. These techniques are aided by detailed structure maps of the shale units; such a map has been prepared for the Geneseo shale, as part of this project. The present conclusion is that the most likely source of shale gas in south-central New York is the Marcellus formation. Shale-gas wells should be drilled with air. The dry open hole should be logged with gamma-ray, density, temperature and noise logs. The shale should be artificially fractured using a nitrogen stimulation technique. Recommendations are given for each of these steps in the text.

  7. Natural Gas from Shale | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagement ofConverDyn NOPRNancyNationalNatural GasImports3 Annual

  8. Accounting for Adsorbed gas and its effect on production bahavior of Shale Gas Reservoirs

    E-Print Network [OSTI]

    Mengal, Salman Akram

    2010-10-12T23:59:59.000Z

    pressures )( p by conventional well tests due to very low permeabilities. Decline curves for conventional gas, when applied on shale gas reservoirs, can not be validated by material balance due to unavailability of average reservoir pressure. However...* variable rate gas BDF including adsorbed gas exhibiting exponential decline (b = 1)................. 25 4.6 Plot of [m(pi )? m(pwf )] / qg(t) vs material balance pseudo time tca*, xii FIGURE...

  9. Shale Gas Development Challenges: Air | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015ParentsMiddle|SecurityDepartment ofSeptemberAir Shale Gas Development

  10. Shale Gas Development Challenges: Fracture Fluids | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015ParentsMiddle|SecurityDepartment ofSeptemberAir Shale GasFracture

  11. Shale Gas Spreads to the South | GE Global Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9 SeptemberSetting the Stage forScienceShale Gas

  12. NATURAL GAS FROM SHALE: Questions and Answers It Seems Like Shale Gas Came Out

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagement of theTechno-economic Evaluation of theSafetyIt Seems Like Shale

  13. NATURAL GAS FROM SHALE: Questions and Answers Shale Gas Development Challenges -

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagement of theTechno-economic Evaluation of theSafetyIt Seems Like Shale

  14. The Role of Isotopes in Monitoring Water Quality Impacts Associated with Shale Gas Drilling

    E-Print Network [OSTI]

    Wang, Z. Jane

    The Role of Isotopes in Monitoring Water Quality Impacts Associated with Shale Gas Drilling Methane contamination is usually due to natural causes; however, it can also be the result of drilling activities, including shale gas drilling. Monitoring techniques exist for detecting methane and, in some cases

  15. GEOLOGIC ASSESSMENT OF DRILLING, COMPLETION, AND STIMULATION METHODS IN SELECTED GAS SHALE PLAYS WORLDWIDE 

    E-Print Network [OSTI]

    Patel, Harsh Jay

    2014-04-11T23:59:59.000Z

    the gas shale formations that have been identified in the world energy consortium. The natural gas in shales and other unconventional reservoirs can be easily used to generate electricity, or it can be turned into liquids and used by the transportation...

  16. The Implications and Flow Behavior of the Hydraulically Fractured Wells in Shale Gas Formation

    E-Print Network [OSTI]

    Almarzooq, Anas Mohammadali S.

    2012-02-14T23:59:59.000Z

    Shale gas formations are known to have low permeability. This low permeability can be as low as 100 nano darcies. Without stimulating wells drilled in the shale gas formations, it is hard to produce them at an economic rate. One of the stimulating...

  17. Barnett Shale Municipal Oil and Gas Ordinance Dynamics: A Spatial Perspective 

    E-Print Network [OSTI]

    Murphy, Trey Daniel-Aaron

    2013-09-27T23:59:59.000Z

    with the recent optimization of horizontal drilling, has substantially increased United States oil and gas production. Hydrocarbon firms perfected and use hydraulic fracturing on the Barnett Shale in North Texas; due to the nature of the formation, gas companies...

  18. Barnett Shale Municipal Oil and Gas Ordinance Dynamics: A Spatial Perspective

    E-Print Network [OSTI]

    Murphy, Trey Daniel-Aaron

    2013-09-27T23:59:59.000Z

    with the recent optimization of horizontal drilling, has substantially increased United States oil and gas production. Hydrocarbon firms perfected and use hydraulic fracturing on the Barnett Shale in North Texas; due to the nature of the formation, gas companies...

  19. Very Large Scale Computations of the Free Energies of Eight Low-Lying Structures of Arginine in the Gas Phase

    E-Print Network [OSTI]

    Simons, Jack

    Very Large Scale Computations of the Free Energies of Eight Low-Lying Structures of Arginine and free energies of five canonical and three zwitterionic low-lying structures of the arginine molecule have been used on state-of-the-art parallel computers. The electronic energy and Gibbs free energy

  20. By Terry Engelder and Gary G. Lash UNIVERSITY PARK, PA.The shale gas rush is on. Excitement over natural gas production from a

    E-Print Network [OSTI]

    Engelder, Terry

    natural gas production from a number of Devonian-Mississippian black shales such as the Barnett by the Eastern Gas Shales Project (EGSP), a U.S. Department of Energy-sponsored investigation of gas potential. Economic gas production from black shale often requires stimulation by hydraulic fracturing

  1. A1. SHALE GAS PRODUCTION GROWTH IN THE UNITED STATES..............................1 A2. VARIABILITY IN SHALE WELL PRODUCTION PERFORMANCE ............................1

    E-Print Network [OSTI]

    basin, and of late the Eagle Ford shale located in southwest Texas. Figure A1 illustrates the growth reservoir pressure, total organic content, thermal maturity, porosity, the presence of natural fractures Eagle Ford Marcellus Haynesville Woodford Fayetteville Barnett Figure A1. Growth in natural gas

  2. Life Cycle Analysis on Greenhouse Gas (GHG) Emissions of Marcellus Shale Gas Supporting Information

    E-Print Network [OSTI]

    Jaramillo, Paulina

    the well pad drilling site and the location for accommodation. The rig and auxiliary equipments for hydraulic fracturing process are trucked in trailers to the drilling site. Several wells on one multi-well 1. GHG Emissions Estimation for Production of Marcellus Shale Gas 1.1 Preparation of Well Pad

  3. Shale Oil and Gas, Frac Sand, and Watershed

    E-Print Network [OSTI]

    Minnesota, University of

    ;Bakken Oil Shale scope · Light, Sweet crude ­ ideal for automotive fuels and mid-size refineries (Midwest

  4. Gas seal for an in situ oil shale retort and method of forming thermal barrier

    DOE Patents [OSTI]

    Burton, III, Robert S. (Mesa, CO)

    1982-01-01T23:59:59.000Z

    A gas seal is provided in an access drift excavated in a subterranean formation containing oil shale. The access drift is adjacent an in situ oil shale retort and is in gas communication with the fragmented permeable mass of formation particles containing oil shale formed in the in situ oil shale retort. The mass of formation particles extends into the access drift, forming a rubble pile of formation particles having a face approximately at the angle of repose of fragmented formation. The gas seal includes a temperature barrier which includes a layer of heat insulating material disposed on the face of the rubble pile of formation particles and additionally includes a gas barrier. The gas barrier is a gas-tight bulkhead installed across the access drift at a location in the access drift spaced apart from the temperature barrier.

  5. Rate Transient Analysis in Shale Gas Reservoirs with Transient Linear Behavior 

    E-Print Network [OSTI]

    Bello, Rasheed O.

    2010-07-14T23:59:59.000Z

    Many hydraulically fractured shale gas horizontal wells in the Barnett shale have been observed to exhibit transient linear behavior. This transient linear behavior is characterized by a one-half slope on a log-log plot of rate against time...

  6. Rate Transient Analysis in Shale Gas Reservoirs with Transient Linear Behavior

    E-Print Network [OSTI]

    Bello, Rasheed O.

    2010-07-14T23:59:59.000Z

    Many hydraulically fractured shale gas horizontal wells in the Barnett shale have been observed to exhibit transient linear behavior. This transient linear behavior is characterized by a one-half slope on a log-log plot of rate against time...

  7. Shale gas in the southern central area of New York State: Part II. Experience of locating and drilling four shale-gas wells in New York State

    SciTech Connect (OSTI)

    Not Available

    1981-04-01T23:59:59.000Z

    Four shale-gas wells have been located and drilled in the south-central area of New York State as part of this project. The four wells that were drilled are: the Rathbone well, in Steuben County, was located on the north side of a graben, in an old shale-gas field; it penetrated the Rhinestreet, Geneseo and Marcellus shales. Artificial stimulation was performed in the Rhinestreet, without marked success, and in the Marcellus; the latter formation has a calculated open flow of 110 Mcf/day and appears capable of initial production of 100 Mcf/day against a back-pressure of 500 psi. The Dansville well, in Livingston County, tested the Geneseo and Marcellus shales at shallower depth. Artificial stimulation was performed in the Marcellus. The calculated open flow is 95 Mcf/day, and the well appears capable of initial production of 70 Mcf/day against a back-pressure of 300 psi. The Erwin and N. Corning wells, both near Corning in Steuben County, were designed to test the possibility of collecting gas from a fractured conduit layer connecting to other fracture systems in the Rhinestreet shale. The N. Corning well failed; the expected conduit was found to be only slightly fractured. The Erwin well encountered a good initial show of gas at the conduit, but the gas flow was not maintained; even after artificial stimulation the production is only 10 Mcf/day. The present conclusion is that the most likely source of shale gas in south-central New York is the Marcellus shale formation. Important factors not yet established are the decline rate of Marcellus production and the potential of the Geneseo after stimulation.

  8. Fracture Modeling and Flow Behavior in Shale Gas Reservoirs Using Discrete Fracture Networks

    E-Print Network [OSTI]

    Ogbechie, Joachim Nwabunwanne

    2012-02-14T23:59:59.000Z

    Gen and NFflow) for fracture modeling of a shale gas reservoir and also studies the interaction of the different fracture properties on reservoir response. The most important results of the study are that a uniform fracture network distribution and fracture...

  9. Regulation of shale gas development : an argument for state preeminence with federal support

    E-Print Network [OSTI]

    Kansal, Tushar, M.C.P. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Shale gas development has become big business in the United States during the past decade, introducing drilling to parts of the country that have not seen it in decades and provoking an accelerating shift in the country's ...

  10. Comparison of Various Deterministic Forecasting Techniques in Shale Gas Reservoirs with Emphasis on the Duong Method

    E-Print Network [OSTI]

    Joshi, Krunal Jaykant

    2012-10-19T23:59:59.000Z

    There is a huge demand in the industry to forecast production in shale gas reservoirs accurately. There are many methods including volumetric, Decline Curve Analysis (DCA), analytical simulation and numerical simulation. Each one of these methods...

  11. Sedimentology of gas-bearing Devonian shales of the Appalachian Basin

    SciTech Connect (OSTI)

    Potter, P.E.; Maynard, J.B.; Pryor, W.A.

    1981-01-01T23:59:59.000Z

    The Eastern Gas Shales Project (1976-1981) of the US DOE has generated a large amount of information on Devonian shale, especially in the western and central parts of the Appalachian Basin (Morgantown Energy Technology Center, 1980). This report summarizes this information, emphasizing the sedimentology of the shales and how it is related to gas, oil, and uranium. This information is reported in a series of statements each followed by a brief summary of supporting evidence or discussion and, where interpretations differ from our own, we include them. We believe this format is the most efficient way to learn about the gas-bearing Devonian shales of the Appalachian Basin and have organized our statements as follows: paleogeography and basin analysis; lithology and internal stratigraphy; paleontology; mineralogy, petrology, and chemistry; and gas, oil, and uranium.

  12. A Novel Approach For the Simulation of Multiple Flow Mechanisms and Porosities in Shale Gas Reservoirs

    E-Print Network [OSTI]

    Yan, Bicheng

    2013-07-15T23:59:59.000Z

    The state of the art of modeling fluid flow in shale gas reservoirs is dominated by dual porosity models that divide the reservoirs into matrix blocks that significantly contribute to fluid storage and fracture networks which principally control...

  13. Precise inversion of logged slownesses for elastic parameters in a gas shale formation

    E-Print Network [OSTI]

    Miller, Douglas E.

    Dipole sonic log data recorded in a vertical pilot well and the associated production well are analyzed over a 200Ś1100-ft section of a North American gas shale formation. The combination of these two wells enables angular ...

  14. Interdisciplinary Investigation of CO2 Sequestration in Depleted Shale Gas Formations

    SciTech Connect (OSTI)

    Zoback, Mark; Kovscek, Anthony; Wilcox, Jennifer

    2013-09-30T23:59:59.000Z

    This project investigates the feasibility of geologic sequestration of CO2 in depleted shale gas reservoirs from an interdisciplinary viewpoint. It is anticipated that over the next two decades, tens of thousands of wells will be drilled in the 23 states in which organic-rich shale gas deposits are found. This research investigates the feasibility of using these formations for sequestration. If feasible, the number of sites where CO2 can be sequestered increases dramatically. The research embraces a broad array of length scales ranging from the ~10 nanometer scale of the pores in the shale formations to reservoir scale through a series of integrated laboratory and theoretical studies.

  15. Assessment of the Mexican Eagle Ford Shale Oil and Gas Resources 

    E-Print Network [OSTI]

    Morales Velasco, Carlos Armando

    2013-08-02T23:59:59.000Z

    was not quantified. In November 2011, Petr?leos Mexicanos (PEMEX) estimated prospective gas resources in the different plays. For the Upper Cretaceous (which includes the Eagle Ford shale) the estimates were 54-106-171 TCF (P90-P50-P10). For the Eagle Ford... and Agua Nueva shales combined resources were estimated to be 27-87 TCF (P90-P10) (PEMEX 2011). An assessment of the Eagle Ford shale oil and gas resources in the US is being done by the Crisman Institute for Petroleum Research at Texas A&M University...

  16. Simulating the Effect of Water on the Fracture System of Shale Gas Wells

    E-Print Network [OSTI]

    Hamam, Hassan Hasan H.

    2011-10-21T23:59:59.000Z

    SIMULATING THE EFFECT OF WATER ON THE FRACTURE SYSTEM OF SHALE GAS WELLS A Thesis by HASSAN HASAN H. HAMAM Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 2010 Major Subject: Petroleum Engineering SIMULATING THE EFFECT OF WATER ON THE FRACTURE SYSTEM OF SHALE GAS WELLS A Thesis by HASSAN HASAN H. HAMAM Submitted to the Office of Graduate...

  17. Unconventional gas sources. Executive summary. [Coal seams, Devonian shale, geopressured brines, tight gas reservoirs

    SciTech Connect (OSTI)

    Not Available

    1980-12-01T23:59:59.000Z

    The long lead time required for conversion from oil or gas to coal and for development of a synthetic fuel industry dictates that oil and gas must continue to supply the United States with the majority of its energy requirements over the near term. In the interim period, the nation must seek a resource that can be developed quickly, incrementally, and with as few environmental concerns as possible. One option which could potentially fit these requirements is to explore for, drill, and produce unconventional gas: Devonian Shale gas, coal seam gas, gas dissolved in geopressured brines, and gas from tight reservoirs. This report addresses the significance of these sources and the economic and technical conditions under which they could be developed.

  18. TREATMENT OF MULTIVARIATE ENVIRONMENTAL AND HEALTH PROBLEMS ASSOCIATED WITH OIL SHALE TECHNOLOGY

    E-Print Network [OSTI]

    Kland, M.J.

    2010-01-01T23:59:59.000Z

    Identified in Oil Shale and Shale Oil. list." 1. Preliminaryrisks of large scale shale oil production are sufficient tofound in oil shale and shale oil by EMIC and ETIC, has

  19. Study of Flow Regimes in Multiply-Fractured Horizontal Wells in Tight Gas and Shale Gas Reservoir Systems 

    E-Print Network [OSTI]

    Freeman, Craig M.

    2010-07-14T23:59:59.000Z

    Various analytical, semi-analytical, and empirical models have been proposed to characterize rate and pressure behavior as a function of time in tight/shale gas systems featuring a horizontal well with multiple hydraulic fractures. Despite a small...

  20. Study of Flow Regimes in Multiply-Fractured Horizontal Wells in Tight Gas and Shale Gas Reservoir Systems

    E-Print Network [OSTI]

    Freeman, Craig M.

    2010-07-14T23:59:59.000Z

    Various analytical, semi-analytical, and empirical models have been proposed to characterize rate and pressure behavior as a function of time in tight/shale gas systems featuring a horizontal well with multiple hydraulic fractures. Despite a small...

  1. Table 4. Principal shale gas plays: natural gas production and proved reserves, 2012-13

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas plays: natural gas

  2. Large scale disease prediction

    E-Print Network [OSTI]

    Schmid, Patrick R. (Patrick Raphael)

    2008-01-01T23:59:59.000Z

    The objective of this thesis is to present the foundation of an automated large-scale disease prediction system. Unlike previous work that has typically focused on a small self-contained dataset, we explore the possibility ...

  3. INTEGRATION OF HIGH TEMPERATURE GAS REACTORS WITH IN SITU OIL SHALE RETORTING

    SciTech Connect (OSTI)

    Eric P. Robertson; Michael G. McKellar; Lee O. Nelson

    2011-05-01T23:59:59.000Z

    This paper evaluates the integration of a high-temperature gas-cooled reactor (HTGR) to an in situ oil shale retort operation producing 7950 m3/D (50,000 bbl/day). The large amount of heat required to pyrolyze the oil shale and produce oil would typically be provided by combustion of fossil fuels, but can also be delivered by an HTGR. Two cases were considered: a base case which includes no nuclear integration, and an HTGR-integrated case.

  4. ,"Miscellaneous States Shale Gas Proved Reserves (Billion Cubic Feet)"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National and Regional Data; Row: NAICS Codes; Column: Energy Sources and Shipments;NetPriceNonassociatedSummary"ShaleCoalbedDryGas,Shale

  5. Onset and Subsequent Transient Phenomena of Liquid Loading in Gas Wells: Experimental Investigation Using a Large Scale Flow Loop

    E-Print Network [OSTI]

    Waltrich, Paulo

    2012-10-19T23:59:59.000Z

    Liquid loading in gas wells is generally described as the inability of the well to lift the co-produced liquids up the tubing, which may ultimately kill the well. There is a lack of dedicated models that can mimic the transient features...

  6. Shale gas in the southern central area of New York State. Volume III. Experience of drilling five shale-gas wells in New York State

    SciTech Connect (OSTI)

    Not Available

    1983-03-01T23:59:59.000Z

    Five shale-gas wells have been located and drilled in the South-Central areas of New York State as part of this program. The program was undertaken by Arlington Exploration Company (AEC) during 1981 and 1982. The wells were drilled on educational properties in an attempt to demonstrate the economic prospect of natural gas for institutional and small commercial consumers to develop their own source of energy. All five wells were completed in the Marcellus section of the Devonian shale. Each of the five wells was connected to an appropriate heat load for the purpose of production testing. The project supports the theory that a well drilled anywhere in South-Central New York and completed in the Marcellus Shale using modern fracturing techniques (i.e. nitrogen foam) is likely to produce some gas. Important factors not yet predictable are the decline rate of Marcellus production and the volume of recoverable reserves. Depths to the Marcellus Shale generally increase from north (i.e. Houghton College) to south (i.e. Portville Central School).

  7. Results of Large-Scale Testing on Effects of Anti-Foam Agent on Gas Retention and Release

    SciTech Connect (OSTI)

    Stewart, Charles W.; Guzman-Leong, Consuelo E.; Arm, Stuart T.; Butcher, Mark G.; Golovich, Elizabeth C.; Jagoda, Lynette K.; Park, Walter R.; Slaugh, Ryan W.; Su, Yin-Fong; Wend, Christopher F.; Mahoney, Lenna A.; Alzheimer, James M.; Bailey, Jeffrey A.; Cooley, Scott K.; Hurley, David E.; Johnson, Christian D.; Reid, Larry D.; Smith, Harry D.; Wells, Beric E.; Yokuda, Satoru T.

    2008-01-03T23:59:59.000Z

    The U.S. Department of Energy (DOE) Office of River Protection’s Waste Treatment Plant (WTP) will process and treat radioactive waste that is stored in tanks at the Hanford Site. The waste treatment process in the pretreatment facility will mix both Newtonian and non-Newtonian slurries in large process tanks. Process vessels mixing non-Newtonian slurries will use pulse jet mixers (PJMs), air sparging, and recirculation pumps. An anti-foam agent (AFA) will be added to the process streams to prevent surface foaming, but may also increase gas holdup and retention within the slurry. The work described in this report addresses gas retention and release in simulants with AFA through testing and analytical studies. Gas holdup and release tests were conducted in a 1/4-scale replica of the lag storage vessel operated in the Pacific Northwest National Laboratory (PNNL) Applied Process Engineering Laboratory using a kaolin/bentonite clay and AZ-101 HLW chemical simulant with non-Newtonian rheological properties representative of actual waste slurries. Additional tests were performed in a small-scale mixing vessel in the PNNL Physical Sciences Building using liquids and slurries representing major components of typical WTP waste streams. Analytical studies were directed at discovering how the effect of AFA might depend on gas composition and predicting the effect of AFA on gas retention and release in the full-scale plant, including the effects of mass transfer to the sparge air. The work at PNNL was part of a larger program that included tests conducted at Savannah River National Laboratory (SRNL) that is being reported separately. SRNL conducted gas holdup tests in a small-scale mixing vessel using the AZ-101 high-level waste (HLW) chemical simulant to investigate the effects of different AFAs, their components, and of adding noble metals. Full-scale, single-sparger mass transfer tests were also conducted at SRNL in water and AZ-101 HLW simulant to provide data for PNNL’s WTP gas retention and release modeling.

  8. Study of gas production potential of New Albany Shale (group) in the Illinois basin

    SciTech Connect (OSTI)

    Hasenmueller, N.R.; Boberg, W.S.; Comer, J.; Smidchens, Z. (Indiana Geological Survey, Bloomington (United States)); Frankie, W.T.; Lumm, D.K. (Illinois State Geological Survey, Champaign (United States)); Hamilton-Smith, T.; Walker, J.D. (Kentucky Geological Survey, Lexington (United States))

    1991-08-01T23:59:59.000Z

    The New Albany Shale (Devonian and Mississippian) is recognized as both a source rock and gas-producing reservoir in the Illinois basin. The first gas discovery was made in 1885, and was followed by the development of several small fields in Harrison County, Indiana, and Meade County, Kentucky. Recently, exploration for and production of New Albany gas has been encouraged by the IRS Section 29 tax credit. To identify technology gaps that have restricted the development of gas production form the shale gas resource in the basin, the Illinois Basin Consortium (IBC), composed of the Illinois, Indiana, and Kentucky geological surveys, is conducting a cooperative research project with the Gas Research Institute (GRI). An earlier study of the geological and geochemical aspects of the New Albany was conducted during 1976-1978 as part of the Eastern Gas Shales Project (EGSP) sponsored by the Department of Energy (DOE). The current IBC/GRI study is designed to update and reinterpret EGSP data and incorporate new data obtained since 1978. During the project, relationships between gas production and basement structures are being emphasized by constructing cross sections and maps showing thickness, structure, basement features, and thermal maturity. The results of the project will be published in a comprehensive final report in 1992. The information will provide a sound geological basis for ongoing shale-gas research, exploration, and development in the basin.

  9. Large-scale shock-ionized and photo-ionized gas in M83: the impact of star formation

    E-Print Network [OSTI]

    Hong, Sungryong; Dopita, Michael A; Blair, William P; Whitmore, Bradley C; Balick, Bruce; Bond, Howard E; Carollo, Marcella; Disney, Michael J; Frogel, Jay A; Hall, Donald; Holtzman, Jon A; Kimble, Randy A; McCarthy, Patrick J; O'Connell, Robert W; Paresce, Francesco; Saha, Abhijit; Silk, Joseph I; Trauger, John T; Walker, Alistair R; Windhorst, Rogier A; Young, Erick T; Mutchler, Max

    2011-01-01T23:59:59.000Z

    We investigate the ionization structure of the nebular gas in M83 using the line diagnostic diagram, [O III](5007 \\degA)/H{\\beta} vs. [S II](6716 \\deg A+6731 \\deg A)/H{\\alpha} with the newly available narrowband images from the Wide Field Camera 3 (WFC3) of the Hubble Space Telescope (HST). We produce the diagnostic diagram on a pixel-by-pixel (0.2" x 0.2") basis and compare it with several photo- and shock-ionization models. For the photo-ionized gas, we observe a gradual increase of the log([O III]/H{\\beta}) ratios from the center to the spiral arm, consistent with the metallicity gradient, as the H II regions go from super solar abundance to roughly solar abundance from the center out. Using the diagnostic diagram, we separate the photo-ionized from the shock-ionized component of the gas. We find that the shock-ionized H{\\alpha} emission ranges from ~2% to about 15-33% of the total, depending on the separation criteria used. An interesting feature in the diagnostic diagram is an horizontal distribution aro...

  10. LARGE-SCALE SHOCK-IONIZED AND PHOTOIONIZED GAS IN M83: THE IMPACT OF STAR FORMATION

    SciTech Connect (OSTI)

    Hong, Sungryong; Calzetti, Daniela [Department of Astronomy, University of Massachusetts, Amherst, MA 01003 (United States); Dopita, Michael A. [Research School of Astronomy and Astrophysics, Australian National University, ACT 2611 (Australia); Blair, William P. [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States); Whitmore, Bradley C.; Bond, Howard E. [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Balick, Bruce [Department of Astronomy, University of Washington, Seattle, WA 98195-1580 (United States); Carollo, Marcella [Department of Physics, ETH-Zurich, Zurich 8093 (Switzerland); Disney, Michael J. [School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA (United Kingdom); Frogel, Jay A. [Association of Universities for Research in Astronomy, Washington, DC 20005 (United States); Hall, Donald [Institute for Astronomy, University of Hawaii, Honolulu, HI 96822 (United States); Holtzman, Jon A. [Department of Astronomy, New Mexico State University, Las Cruces, NM 88003 (United States); Kimble, Randy A. [NASA-Goddard Space Flight Center, Greenbelt, MD 20771 (United States); McCarthy, Patrick J. [Observatories of the Carnegie Institution of Washington, Pasadena, CA 91101-1292 (United States); O'Connell, Robert W. [Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325 (United States); Paresce, Francesco [Istituto di Astrofisica Spaziale e Fisica Cosmica, INAF, Via Gobetti 101, 40129 Bologna (Italy); Saha, Abhijit [National Optical Astronomy Observatories, Tucson, AZ 85726-6732 (United States); Silk, Joseph I. [Department of Physics, University of Oxford, Oxford OX1 3PU (United Kingdom); Trauger, John T. [NASA-Jet Propulsion Laboratory, Pasadena, CA 91109 (United States); Walker, Alistair R., E-mail: wpb@pha.jhu.edu [Cerro Tololo Inter-American Observatory, La Serena (Chile)

    2011-04-10T23:59:59.000Z

    We investigate the ionization structure of the nebular gas in M83 using the line diagnostic diagram, [O III](5007 A)/H{beta} versus [S II](6716 A+6731 A)/H{alpha}, with the newly available narrowband images from the Wide Field Camera 3 (WFC3) of the Hubble Space Telescope (HST). We produce the diagnostic diagram on a pixel-by-pixel (0.''2 x 0.''2) basis and compare it with several photo- and shock-ionization models. We select four regions from the center to the outer spiral arm and compare them in the diagnostic diagram. For the photoionized gas, we observe a gradual increase of the log ([O III]/H{beta}) ratios from the center to the spiral arm, consistent with the metallicity gradient, as the H II regions go from super-solar abundance to roughly solar abundance from the center out. Using the diagnostic diagram, we separate the photoionized from the shock-ionized component of the gas. We find that the shock-ionized H{alpha} emission ranges from {approx}2% to about 15%-33% of the total, depending on the separation criteria used. An interesting feature in the diagnostic diagram is a horizontal distribution around log ([O III]/H{beta}) {approx} 0. This feature is well fit by a shock-ionization model with 2.0 Z{sub sun} metallicity and shock velocities in the range of 250-350 km s{sup -1}. A low-velocity shock component, <200 km s{sup -1}, is also detected and is spatially located at the boundary between the outer ring and the spiral arm. The low-velocity shock component can be due to (1) supernova remnants located nearby, (2) dynamical interaction between the outer ring and the spiral arm, and (3) abnormal line ratios from extreme local dust extinction. The current data do not enable us to distinguish among those three possible interpretations. Our main conclusion is that, even at the HST resolution, the shocked gas represents a small fraction of the total ionized gas emission at less than 33% of the total. However, it accounts for virtually all of the mechanical energy produced by the central starburst in M83.

  11. Permeability Estimation from Fracture Calibration Test Analysis in Shale and Tight Gas

    E-Print Network [OSTI]

    Xue, Han 1988-

    2012-12-13T23:59:59.000Z

    to these two tests, a step-rate test is sometimes conducted before a mini-fracture test to determine fracture extension pressure. (Figure 2. 1) In tight gas or shale gas formation the short and low rate injection-fall off test using slick water as injection...

  12. Table 4. Principal shale gas plays: natural gas production and proved reserves, 2012-13

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas plays: natural

  13. Forecasting long-term gas production of dewatered coal seams and fractured gas shales

    SciTech Connect (OSTI)

    Spivey, J.P.; Semmelbeck, M.E.

    1995-12-31T23:59:59.000Z

    Production decline curves are routinely used by engineers to predict the future performance of oil and gas wells. Because the results of decline curve predictions are used for calculating asset value and estimating future revenue, they are one of the most important tools reservoir engineers use. There are numerous variations on the basic exponential or hyperbolic decline analysis method. Fetkovitch and other have extended the decline curve analysis method to handle gas wells properly and to be able to estimate reservoir properties from the analysis of these data. However, there has been considerable drilling activity in the last 10 years into unconventional reservoirs whose wells do not follow the traditional production decline characteristic shapes. Among these problem reservoirs are coalbed methane and fractured shale reservoirs. A procedure is presented which allows forecasting long range performance of dewatered coal and fractured gas shale reservoirs having nonlinear adsorption isotherms, using constant pressure solutions to the flow equation for slightly compressible liquids. A correlation is presented to show the range of applicability of this procedure.

  14. A Critical Review of the Risks to Water Resources from Unconventional Shale Gas Development and Hydraulic Fracturing in

    E-Print Network [OSTI]

    Jackson, Robert B.

    and Hydraulic Fracturing in the United States Avner Vengosh,*, Robert B. Jackson,, Nathaniel Warner,§ Thomas H: The rapid rise of shale gas development through horizontal drilling and high volume hydraulic fracturing has hydraulic fracturing. This paper provides a critical review of the potential risks that shale gas operations

  15. Target-rate Tracking for Shale-gas Multi-well Pads by Scheduled Shut-ins

    E-Print Network [OSTI]

    Foss, Bjarne A.

    completion technique in current shale-gas developments [Cipolla et al., 2009]. These stimulation treatments, Yorktown Heights, NY, USA. Abstract: The recent success of shale-gas production relies on drilling of long horizontal wells and stimulation with multistage hydraulic fracturing. This practice normally leads

  16. UK Oil and Gas Collaborative Doctoral Training Centre (2014 start) Project Title: Coupled flow of water and gas during hydraulic fracture in shale (EARTH-15-CM1)

    E-Print Network [OSTI]

    Henderson, Gideon

    UK Oil and Gas Collaborative Doctoral Training Centre (2014 start) Project Title: Coupled flow of water and gas during hydraulic fracture in shale (EARTH-15-CM1) Host institution: University of Oxford Cartwright Project description: Recovery of natural gas from mudstone (shale) formations has triggered

  17. Apparatus for distilling shale oil from oil shale

    SciTech Connect (OSTI)

    Shishido, T.; Sato, Y.

    1984-02-14T23:59:59.000Z

    An apparatus for distilling shale oil from oil shale comprises: a vertical type distilling furnace which is divided by two vertical partitions each provided with a plurality of vent apertures into an oil shale treating chamber and two gas chambers, said oil shale treating chamber being located between said two gas chambers in said vertical type distilling furnace, said vertical type distilling furnace being further divided by at least one horizontal partition into an oil shale distilling chamber in the lower part thereof and at least one oil shale preheating chamber in the upper part thereof, said oil shale distilling chamber and said oil shale preheating chamber communication with each other through a gap provided at an end of said horizontal partition, an oil shale supplied continuously from an oil shale supply port provided in said oil shale treating chamber at the top thereof into said oil shale treating chamber continuously moving from the oil shale preheating chamber to the oil shale distilling chamber, a high-temperature gas blown into an oil shale distilling chamber passing horizontally through said oil shale in said oil shale treating chamber, thereby said oil shale is preheated in said oil shale preheating chamber, and a gaseous shale oil is distilled from said preheated oil shale in said oil shale distilling chamber; and a separator for separating by liquefaction a gaseous shale oil from a gas containing the gaseous shale oil discharged from the oil shale preheating chamber.

  18. Launching a Cornell Examination of the Marcellus System The issues related to the development of the Marcellus Shale unconventional gas resource are

    E-Print Network [OSTI]

    Angenent, Lars T.

    of the Marcellus Shale unconventional gas resource are emblematic of a whole family of extremely complicated Energy. The development plans for the Marcellus Shale are unfolding immediately in our backyards and require of different ways of developing the Marcellus Shale and the economics of not developing the Marcellus Shale. We

  19. Back to previous page Shale gas: Can we safely tap

    E-Print Network [OSTI]

    Deutch, John

    and associated hydrocarbon liquids are produced by hydraulic fracturing, or "fracking." One million to 5 million gallons of fracking fluid -- a mixture of water, sand and chemical additives -- is injected along that fracking fluid can contaminate shallow underground drinking-water supplies, the distance between deep shale

  20. Occurrence of oil and gas in Devonian shales and equivalents in West Virginia

    SciTech Connect (OSTI)

    Schwietering, J. F.

    1981-03-01T23:59:59.000Z

    During the Devonian, an epicontinental sea was present in the Appalachian basin. The Catskill Clastic Wedge was formed in the eastern part of the basin by sediments derived from land along the margin of the continent. Three facies are recognized in the Catskill Clastic Wedge: (1) a red-bed facies deposited in terrestrial and nearshore marine environments; (2) a gray shale and sandstone facies deposited in a shallow- to moderately-deep marine environment; and (3) a dark-gray shale and siltstone facies deposited in the deepest part of the epicontinental sea. Oil and natural gas are being produced from Devonian shales in the western part of West Virginia and from upper Devonian sandstones and siltstones in the north-central part of the state. It is suggested that in addition to extending known areas of gas production, that drilling for natural gas be conducted in areas underlain by organic-rich shales and thick zones of interbedded siltstone and shale in the Devonian section in central, southern, and western West Virginia. The most promising areas for exploration are those areas where fractures are associated with folds, faults, and lineaments. 60 references.

  1. Design of Bulk Railway Terminals for the Shale Oil and Gas Industry C. Tyler Dick, P.E., M.ASCE and Lynn E. Brown2

    E-Print Network [OSTI]

    Barkan, Christopher P.L.

    Page 1 Design of Bulk Railway Terminals for the Shale Oil and Gas Industry C. Tyler Dick, P.E., M: Railway transportation is playing a key role in the development of many new shale oil and gas reserves in North America. In the rush to develop new shale oil and gas plays, sites for railway transload terminals

  2. Process Design, Simulation and Integration of Dimethyl Ether (DME) Production from Shale Gas by Direct and Indirect Methods 

    E-Print Network [OSTI]

    Karagoz, Secgin

    2014-08-11T23:59:59.000Z

    may be obtained from shale gas is dimethyl ether (DME). Dimethyl ether can be used in many areas such as power generation, transportation fuel, and domestic heating and cooking. Dimethyl ether is currently produced from natural gas, coal and biomass...

  3. Pressure Transient Analysis and Production Analysis for New Albany Shale Gas Wells

    E-Print Network [OSTI]

    Song, Bo

    2010-10-12T23:59:59.000Z

    time shift that can be used to qualify the gas desorption impact on long term production behavior. We focused on the field case Well A in New Albany Shale. We estimated the EUR for 33 wells, including Well A, using an existing analysis approach. We...

  4. ANALYSIS OF GAS PRODUCTION FROM HYDRAULICALLY FRACTURED WELLS IN THE HAYNESVILLE SHALE USING SCALING METHODS

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    unconventional gas plays in the US. It is also one of the deepest, with wells reaching more than 10,000 feet,580 wells which have entered exponential decline due to pressure interference. We use a simple physical et al. (2013), developed to study the Barnett Shale, to determine well decline curves

  5. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2003-04-28T23:59:59.000Z

    Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, strategy is to inject CO{sub 2} into organic-rich shales of Devonian age. Devonian black shales underlie approximately two-thirds of Kentucky and are generally thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to the way methane is stored in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane at a ratio of two to one. Black shales may similarly desorb methane in the presence of CO{sub 2}. If black shales similarly desorb methane in the presence of CO{sub 2}, the shales may be an excellent sink for CO{sub 2} with the added benefit of serving to enhance natural gas production. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject this research. To accomplish this investigation, drill cuttings and cores will be selected from the Kentucky Geological Survey Well Sample and Core Library. CO{sub 2} adsorption analyses will be performed in order to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, new drill cuttings and sidewall core samples will be acquired to investigate specific black-shale facies, their uptake of CO{sub 2}, and the resultant displacement of methane. Advanced logging techniques (elemental capture spectroscopy) will be used to investigate possible correlations between adsorption capacity and geophysical log measurements.

  6. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2003-02-11T23:59:59.000Z

    Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, strategy is to inject CO{sub 2} into organic-rich shales of Devonian age. Devonian black shales underlie approximately two-thirds of Kentucky and are generally thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to the way methane is stored in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane at a ratio of two to one. Black shales may similarly desorb methane in the presence of CO{sub 2}. If black shales similarly desorb methane in the presence of CO{sub 2}, the shales may be an excellent sink for CO{sub 2} with the added benefit of serving to enhance natural gas production. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject this research. To accomplish this investigation, drill cuttings and cores will be selected from the Kentucky Geological Survey Well Sample and Core Library. CO{sub 2} adsorption analyses will be performed in order to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, new drill cuttings and sidewall core samples will be acquired to investigate specific black-shale facies, their uptake of CO{sub 2}, and the resultant displacement of methane. Advanced logging techniques (elemental capture spectroscopy) will be used to investigate possible correlations between adsorption capacity and geophysical log measurements.

  7. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2003-02-10T23:59:59.000Z

    Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, strategy is to inject CO{sub 2} into organic-rich shales of Devonian age. Devonian black shales underlie approximately two-thirds of Kentucky and are generally thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to the way methane is stored in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane at a ratio of two to one. Black shales may similarly desorb methane in the presence of CO{sub 2}. If black shales similarly desorb methane in the presence of CO{sub 2}, the shales may be an excellent sink for CO{sub 2} with the added benefit of serving to enhance natural gas production. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject this research. To accomplish this investigation, drill cuttings and cores will be selected from the Kentucky Geological Survey Well Sample and Core Library. CO{sub 2} adsorption analyses will be performed in order to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, new drill cuttings and sidewall core samples will be acquired to investigate specific black-shale facies, their uptake of CO{sub 2}, and the resultant displacement of methane. Advanced logging techniques (elemental capture spectroscopy) will be used to investigate possible correlations between adsorption capacity and geophysical log measurements.

  8. How is shale gas produced? | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov.Energy02.pdf7 OPAM Flash2011-37Energy HighlightsCarbonEnergyHow is shale

  9. Shale Gas R&D | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative JC3 RSS September 9,AwardGrads &AlternativeDepartmentServicesScience &Shale

  10. Porosity of coal and shale: Insights from gas adsorption and SANS/USANS techniques

    SciTech Connect (OSTI)

    Mastalerz, Maria [Indiana Geological Survey; He, Lilin [ORNL; Melnichenko, Yuri B [ORNL; Rupp, John A [ORNL

    2012-01-01T23:59:59.000Z

    Two Pennsylvanian coal samples (Spr326 and Spr879-IN1) and two Upper Devonian-Mississippian shale samples (MM1 and MM3) from the Illinois Basin were studied with regard to their porosity and pore accessibility. Shale samples are early mature stage as indicated by vitrinite reflectance (R{sub o}) values of 0.55% for MM1 and 0.62% for MM3. The coal samples studied are of comparable maturity to the shale samples, having vitrinite reflectance of 0.52% (Spr326) and 0.62% (Spr879-IN1). Gas (N{sub 2} and CO{sub 2}) adsorption and small-angle and ultrasmall-angle neutron scattering techniques (SANS/USANS) were used to understand differences in the porosity characteristics of the samples. The results demonstrate that there is a major difference in mesopore (2-50 nm) size distribution between the coal and shale samples, while there was a close similarity in micropore (<2 nm) size distribution. Micropore and mesopore volumes correlate with organic matter content in the samples. Accessibility of pores in coal is pore-size specific and can vary significantly between coal samples; also, higher accessibility corresponds to higher adsorption capacity. Accessibility of pores in shale samples is low.

  11. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2004-01-01T23:59:59.000Z

    CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. For the Devonian shale, average total organic carbon is 3.71 (as received) and mean random vitrinite reflectance is 1.16. Measured adsorption isotherm data range from 37.5 to 2,077.6 standard cubic feet of CO{sub 2} per ton (scf/ton) of shale. At 500 psia, adsorption capacity of the Lower Huron Member of the shale is 72 scf/ton. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. The black shales of Kentucky could be a viable geologic sink for CO{sub 2}, and their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  12. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2004-04-01T23:59:59.000Z

    CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. For the Devonian shale, average total organic carbon is 3.71 percent (as received) and mean random vitrinite reflectance is 1.16. Measured adsorption isotherm data range from 37.5 to 2,077.6 standard cubic feet of CO{sub 2} per ton (scf/ton) of shale. At 500 psia, adsorption capacity of the Lower Huron Member of the shale is 72 scf/ton. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. The black shales of Kentucky could be a viable geologic sink for CO{sub 2}, and their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  13. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2003-10-29T23:59:59.000Z

    CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. For the Devonian shale, average total organic carbon is 3.71 (as received) and mean random vitrinite reflectance is 1.16. Measured adsorption isotherm data range from 37.5 to 2,077.6 standard cubic feet of CO{sub 2} per ton (scf/ton) of shale. At 500 psia, adsorption capacity of the Lower Huron Member of the shale is 72 scf/ton. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. The black shales of Kentucky could be a viable geologic sink for CO{sub 2}, and their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  14. Associated Shale Gas- From Flares to Rig Power

    E-Print Network [OSTI]

    Wallace, Elizabeth Michelle

    2014-10-16T23:59:59.000Z

    , compressed natural gas (CNG), or liquefied natural gas (LNG) (Soares 2008). Another option that can be considered to use natural gas and meet power load requirements is to convert diesel generators to a dual-fuel engines. Using both diesel and natural gas...-scale gas process could provide the solution to variable gas quality from different locations for use in power sources using natural gas. This micro-scale process is comparable to full scale LNG and CNG processing, first separating the liquids...

  15. Natural gas distributed throughout the Marcellus black shale in northern Appalachia could boost proven U.S. gas reserves by trillions of cubic feet (see http://live.psu.edu/story/28116).

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Natural gas distributed throughout the Marcellus black shale in northern Appalachia could boost of the overall impact of Marcellus shale on the Pennsylvania economy. For comparison, the Barnett shale in Texas Basin in New Mexico and Colorado. Over 85% of the 2007 Texas employment impact of Barnett shale was due

  16. 202-328-5000 www.rff.orgSector Effects of the Shale Gas Revolution in the United States

    E-Print Network [OSTI]

    This paper reviews the impact of the shale gas revolution on the sectors of electricity generation, transportation, and manufacturing in the United States. Natural gas is being substituted for other fuels, particularly coal, in electricity generation, resulting in lower greenhouse gas emissions from this sector. The use of natural gas in the transportation sector is currently negligible but is projected to increase with investments in refueling infrastructure and natural gas vehicle technologies. Petrochemical and other manufacturing industries have responded to lower natural gas prices by investing in domestically located manufacturing projects. This paper also speculates on the impact of a possible shale gas boom in China. Key Words: shale gas, electricity, transportation, and manufacturing JEL Classification Numbers: L71, L9, Q4 © 2013 Resources for the Future. All rights reserved. No portion of this paper may be reproduced without permission of the authors. Discussion papers are research materials circulated by their authors for purposes of information and discussion.

  17. A Technical and Economic Study of Completion Techniques In Five Emerging U.S. Gas Shale Plays 

    E-Print Network [OSTI]

    Agrawal, Archna

    2010-07-14T23:59:59.000Z

    used for transportation fuel and several TCF of natural gas annually. However, there is a very large resource of natural gas in unconventional reservoirs, with over 2,200 TCF of gas in place in just the gas shale formations that have been identified...

  18. Experimentation and application of directional solvent extraction for desalination of seawater and shale gas 'frac' flowback water

    E-Print Network [OSTI]

    Kleinguetl, Kevin (Kevin G.)

    2011-01-01T23:59:59.000Z

    A recently demonstrated directional solvent technique for desalination of water has been tested for desalting seawater and shale gas 'frac' flowback water. The premise behind directional solvent extraction is that when ...

  19. EA-0531: Proposed Natural Gas Protection Program for Naval Oil Shale Reserves Nos. 1 and 3, Garfield County, Colorado

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal for a Natural Gas Protection Program for Naval Oil Shale Reserves Nos. 1 and 3 which would be implemented over a five-year period that...

  20. A New Type Curve Analysis for Shale Gas/Oil Reservoir Production Performance with Dual Porosity Linear System

    E-Print Network [OSTI]

    Abdulal, Haider Jaffar

    2012-02-14T23:59:59.000Z

    With increase of interest in exploiting shale gas/oil reservoirs with multiple stage fractured horizontal wells, complexity of production analysis and reservoir description have also increased. Different methods and models were used throughout...

  1. Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development

    E-Print Network [OSTI]

    Angenent, Lars T.

    hydrocarbons such as natural gas. Whereas an over- all goal for the century is to achieve a sustainable system to increased use of unconventional gas resources as a result of declining supplies of conventional resources case study of energy transitions we focused on the case of un- conventional natural gas recovery from

  2. Assessment of Factors Influencing Effective CO{sub 2} Storage Capacity and Injectivity in Eastern Gas Shales

    SciTech Connect (OSTI)

    Godec, Michael

    2013-06-30T23:59:59.000Z

    Building upon advances in technology, production of natural gas from organic-rich shales is rapidly developing as a major hydrocarbon supply option in North America and around the world. The same technology advances that have facilitated this revolution - dense well spacing, horizontal drilling, and hydraulic fracturing - may help to facilitate enhanced gas recovery (EGR) and carbon dioxide (CO{sub 2}) storage in these formations. The potential storage of CO {sub 2} in shales is attracting increasing interest, especially in Appalachian Basin states that have extensive shale deposits, but limited CO{sub 2} storage capacity in conventional reservoirs. The goal of this cooperative research project was to build upon previous and on-going work to assess key factors that could influence effective EGR, CO{sub 2} storage capacity, and injectivity in selected Eastern gas shales, including the Devonian Marcellus Shale, the Devonian Ohio Shale, the Ordovician Utica and Point Pleasant shale and equivalent formations, and the late Devonian-age Antrim Shale. The project had the following objectives: (1) Analyze and synthesize geologic information and reservoir data through collaboration with selected State geological surveys, universities, and oil and gas operators; (2) improve reservoir models to perform reservoir simulations to better understand the shale characteristics that impact EGR, storage capacity and CO{sub 2} injectivity in the targeted shales; (3) Analyze results of a targeted, highly monitored, small-scale CO{sub 2} injection test and incorporate into ongoing characterization and simulation work; (4) Test and model a smart particle early warning concept that can potentially be used to inject water with uniquely labeled particles before the start of CO{sub 2} injection; (5) Identify and evaluate potential constraints to economic CO{sub 2} storage in gas shales, and propose development approaches that overcome these constraints; and (6) Complete new basin-level characterizations for the CO{sub 2} storage capacity and injectivity potential of the targeted eastern shales. In total, these Eastern gas shales cover an area of over 116 million acres, may contain an estimated 6,000 trillion cubic feet (Tcf) of gas in place, and have a maximum theoretical storage capacity of over 600 million metric tons. Not all of this gas in-place will be recoverable, and economics will further limit how much will be economic to produce using EGR techniques with CO{sub 2} injection. Reservoir models were developed and simulations were conducted to characterize the potential for both CO{sub 2} storage and EGR for the target gas shale formations. Based on that, engineering costing and cash flow analyses were used to estimate economic potential based on future natural gas prices and possible financial incentives. The objective was to assume that EGR and CO{sub 2} storage activities would commence consistent with the historical development practices. Alternative CO{sub 2} injection/EGR scenarios were considered and compared to well production without CO{sub 2} injection. These simulations were conducted for specific, defined model areas in each shale gas play. The resulting outputs were estimated recovery per typical well (per 80 acres), and the estimated CO{sub 2} that would be injected and remain in the reservoir (i.e., not produced), and thus ultimately assumed to be stored. The application of this approach aggregated to the entire area of the four shale gas plays concluded that they contain nearly 1,300 Tcf of both primary production and EGR potential, of which an estimated 460 Tcf could be economic to produce with reasonable gas prices and/or modest incentives. This could facilitate the storage of nearly 50 Gt of CO{sub 2} in the Marcellus, Utica, Antrim, and Devonian Ohio shales.

  3. Large scale tracking algorithms.

    SciTech Connect (OSTI)

    Hansen, Ross L.; Love, Joshua Alan; Melgaard, David Kennett; Karelitz, David B.; Pitts, Todd Alan; Zollweg, Joshua David; Anderson, Dylan Z.; Nandy, Prabal; Whitlow, Gary L.; Bender, Daniel A.; Byrne, Raymond Harry

    2015-01-01T23:59:59.000Z

    Low signal-to-noise data processing algorithms for improved detection, tracking, discrimination and situational threat assessment are a key research challenge. As sensor technologies progress, the number of pixels will increase signi cantly. This will result in increased resolution, which could improve object discrimination, but unfortunately, will also result in a significant increase in the number of potential targets to track. Many tracking techniques, like multi-hypothesis trackers, suffer from a combinatorial explosion as the number of potential targets increase. As the resolution increases, the phenomenology applied towards detection algorithms also changes. For low resolution sensors, "blob" tracking is the norm. For higher resolution data, additional information may be employed in the detection and classfication steps. The most challenging scenarios are those where the targets cannot be fully resolved, yet must be tracked and distinguished for neighboring closely spaced objects. Tracking vehicles in an urban environment is an example of such a challenging scenario. This report evaluates several potential tracking algorithms for large-scale tracking in an urban environment.

  4. Stimulation rationale for shale gas wells: a state-of-the-art report

    SciTech Connect (OSTI)

    Young, C.; Barbour, T.; Blanton, T.L.

    1980-12-01T23:59:59.000Z

    Despite the large quantities of gas contained in the Devonian Shales, only a small percentage can be produced commercially by current production methods. This limited production derives both from the unique reservoir properties of the Devonian Shales and the lack of stimulation technologies specifically designed for a shale reservoir. Since October 1978 Science Applications, Inc. has been conducting a review and evaluation of various shale well stimulation techniques with the objective of defining a rationale for selecting certain treatments given certain reservoir conditions. Although this review and evaluation is ongoing and much more data will be required before a definitive rationale can be presented, the studies to date do allow for many preliminary observations and recommendations. For the hydraulic type treatments the use of low-residual-fluid treatments is highly recommended. The excellent shale well production which is frequently observed with only moderate wellbore enlargement treatments indicates that attempts to extend fractures to greater distances with massive hydraulic treatments are not warranted. Immediate research efforts should be concentrated upon limiting production damage by fracturing fluids retained in the formation, and upon improving proppant transport and placement so as to maximize fracture conductivity. Recent laboratory, numerical modeling and field studies all indicate that the gas fracturing effects of explosive/propellant type treatments are the predominate production enhancement mechanism and that these effects can be controlled and optimized with properly designed charges. Future research efforts should be focused upon the understanding, prediction and control of wellbore fracturing with tailored-pulse-loading charges. 36 references, 7 figures, 2 tables.

  5. MARCELLUS SHALE APRIL 2011 EDITION

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    of labor market information for Pennsylvania's Marcellus Shale (MS) industries and related economic Petroleum & Natural Gas Extraction (211111); Natural Gas Liquid Extraction (211112); Drilling Oil & Gas Structures Construction (237120); and Pipeline Transportation of Natural Gas (486210). Marcellus Shale

  6. Zero Discharge Water Management for Horizontal Shale Gas Well...

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

    States Government or any agency thereof." Abstract Hydraulic fracturing technology (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas...

  7. A study of the effects of stimulation on Devonian Shale gas well performance

    E-Print Network [OSTI]

    Zuber, Michael Dean

    1985-01-01T23:59:59.000Z

    of actual production data from producing Devonian Shale gas wells throughout the Appalachian Basin. These comparisons are of limited use, however, because they fail to take into account recently developed stimulation technologies and because compari... by analysis of these data. Unfortunately, too little data are available for wells stimulated using current technologies. This study included no production data from wells stimulated by radial (tailored-pulse) fracturing methods. These data are vital...

  8. CONTROL STRATEGIES FOR ABANDONED IN-SITU OIL SHALE RETORTS

    E-Print Network [OSTI]

    Persoff, P.

    2011-01-01T23:59:59.000Z

    recovery Vent gas '\\Raw shale oil Recycled gas compressorThis process produces shale oil, a low BTU gas, and char,Oil Shale Process" in Oil Shale and Tar Sands, J. W. Smith

  9. Analysis of Water Flowback Data in Gas Shale Reservoirs 

    E-Print Network [OSTI]

    Aldaif, Hussain

    2014-09-24T23:59:59.000Z

    it at different reservoir conditions. For this purpose, several simulation cases were run. The results of the simulation runs were compared with the production data from several Fayetteville gas wells. Different conclusions were obtained from these comparisons...

  10. A study of natural gas extraction in Marcellus shale

    E-Print Network [OSTI]

    Boswell, Zachary (Zachary Karol)

    2011-01-01T23:59:59.000Z

    With the dramatic increases in crude oil prices there has been a need to find reliable energy substitutions. One substitution that has been used in the United States is natural gas. However, with the increased use of natural ...

  11. Outlook for U.S. shale oil and gas

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

    Argus Americas Crude Summit January 22, 2014 | Houston, TX By Adam Sieminski, EIA Administrator Six key plays account for nearly all recent growth in oil and natural gas production...

  12. Shale Gas and Climate Targets: Can They Be Reconciled?

    E-Print Network [OSTI]

    Pedersen, Tom

    deposits flows poorly and requires new advances in hori- zontal drilling and rock fracturing to improve gas extraction rates. Hydraulic fracturing uses a water, sand, and chemical mixture pumped under high pressure

  13. The Economic Impact of the Natural Gas Industry and the Marcellus Shale Development in West Virginia in 2009

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    The Economic Impact of the Natural Gas Industry and the Marcellus Shale Development in West for this research was provided by the West Virginia Oil and Natural Gas Association (WVONGA). The opinions herein Natural gas is a colorless, odorless, and tasteless fuel that is used by households, manufacturers

  14. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2003-07-28T23:59:59.000Z

    CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. Should the black shales of Kentucky prove to be a viable geologic sink for CO{sub 2}, their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  15. File:EIA-shale-gas.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump to: navigation,Size ofMTB-GAS.pdf Jumpoffshore-gas.pdf Jump

  16. Study of Multi-scale Transport Phenomena in Tight Gas and Shale Gas Reservoir Systems

    E-Print Network [OSTI]

    Freeman, Craig Matthew

    2013-11-25T23:59:59.000Z

    in the rate and pressure data. Integration of the compositional shift analysis of this work with modern production analysis is used to infer reservoir properties. This work extends the current understanding of flow behavior and well performance for shale...

  17. Natural Gas from Shale: Questions and Answers | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagement ofConverDyn NOPRNancyNationalNatural GasImports3 AnnualNatural

  18. Natural Gas from Shale: Questions and Answers | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in Many DevilsForum |Energy NovemberC O ORHto Growth |Natural Gas

  19. Shale-Gas Experience as an Analog for Potential Wellbore Integrity Issues in CO2 Sequestration

    SciTech Connect (OSTI)

    Carey, James W. [Los Alamos National Laboratory; Simpson, Wendy S. [Los Alamos National Laboratory; Ziock, Hans-Joachim [Los Alamos National Laboratory

    2011-01-01T23:59:59.000Z

    Shale-gas development in Pennsylvania since 2003 has resulted in about 19 documented cases of methane migration from the deep subsurface (7,0000) to drinking water aquifers, soils, domestic water wells, and buildings, including one explosion. In all documented cases, the methane leakage was due to inadequate wellbore integrity, possibly aggravated by hydrofracking. The leakage of methane is instructive on the potential for CO{sub 2} leakage from sequestration operations. Although there are important differences between the two systems, both involve migrating, buoyant gas with wells being a primary leakage pathway. The shale-gas experience demonstrates that gas migration from faulty wells can be rapid and can have significant impacts on water quality and human health and safety. Approximately 1.4% of the 2,200 wells drilled into Pennsylvania's Marcellus Formation for shale gas have been implicated in methane leakage. These have resulted in damage to over 30 domestic water supplies and have required significant remediation via well repair and homeowner compensation. The majority of the wellbore integrity problems are a result of over-pressurization of the wells, meaning that high-pressure gas has migrated into an improperly protected wellbore annulus. The pressurized gas leaks from the wellbore into the shallow subsurface, contaminating drinking water or entering structures. The effects are localized to a few thousands of feet to perhaps two-three miles. The degree of mixing between the drinking water and methane is sufficient that significant chemical impacts are created in terms of elevated Fe and Mn and the formation of black precipitates (metal sulfides) as well as effervescing in tap water. Thus it appears likely that leaking CO{sub 2} could also result in deteriorated water quality by a similar mixing process. The problems in Pennsylvania highlight the critical importance of obtaining background data on water quality as well as on problems associated with previous (legacy) oil and gas operations. The great majority of the leakage issues in Pennsylvania are due to improperly abandoned wells, however in the media there is no clear distinction between past and present problems. In any case, significant analytical work is required to attribute differing sources of methane (or CO{sub 2} in the case of sequestration). In Pennsylvania, a relatively lax regulatory environment appears to have contributed to the problem with inadequate oversight of well design and testing to ensure well integrity. New rules were adopted at the end of 2010, and it will be interesting to observe whether methane leakage problems are significantly reduced.

  20. Assessment of the Mexican Eagle Ford Shale Oil and Gas Resources

    E-Print Network [OSTI]

    Morales Velasco, Carlos Armando

    2013-08-02T23:59:59.000Z

    and for their commitment to our education. I would also like to thank Dr. Yuefeng Sun for being part of my committee and Dr. Juan Carlos Laya for serving as a substitute in my thesis defense. My special thanks to Petr?leos Mexicanos for providing me information... was not quantified. In November 2011, Petr?leos Mexicanos (PEMEX) estimated prospective gas resources in the different plays. For the Upper Cretaceous (which includes the Eagle Ford shale) the estimates were 54-106-171 TCF (P90-P50-P10). For the Eagle Ford...

  1. US-China_Fact_Sheet_Shale_Gas.pdf | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 Russian Nuclear Warheads into Fuel forShale_Gas.pdf

  2. Help for declining natural gas production seen in the unconventional sources of natural gas. [Eastern shales, tight sands, coal beds, geopressured zones

    SciTech Connect (OSTI)

    Staats, E.B.

    1980-01-10T23:59:59.000Z

    Oil imports could be reduced and domestic gas production increased if additional gas production is obtained from four unconventional resources-eastern Devonian shales, tight sands, coal beds, and geopressured zones. Gas produced from these resources can help maintain overall production levels as supplies from conventional gas sources gradually decline. The eastern shales and western sands are the chief potential contributors in the near term. Further demonstrations of coal bed methane's recovery feasibility could improve the prospects for its production while future geopressured methane production remains speculative at this time.

  3. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2005-04-26T23:59:59.000Z

    Devonian gas shales underlie approximately two-thirds of Kentucky. In the shale, natural gas is adsorbed on clay and kerogen surfaces. This is analogous to methane storage in coal beds, where CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. Drill cuttings from the Kentucky Geological Survey Well Sample and Core Library were sampled to determine CO{sub 2} and CH{sub 4} adsorption isotherms. Sidewall core samples were acquired to investigate CO{sub 2} displacement of methane. An elemental capture spectroscopy log was acquired to investigate possible correlations between adsorption capacity and mineralogy. Average random vitrinite reflectance data range from 0.78 to 1.59 (upper oil to wet gas and condensate hydrocarbon maturity range). Total organic content determined from acid-washed samples ranges from 0.69 to 14 percent. CO{sub 2} adsorption capacities at 400 psi range from a low of 14 scf/ton in less organic-rich zones to more than 136 scf/ton. There is a direct correlation between measured total organic carbon content and the adsorptive capacity of the shale; CO{sub 2} adsorption capacity increases with increasing organic carbon content. Initial estimates based on these data indicate a sequestration capacity of 5.3 billion tons of CO{sub 2} in the Lower Huron Member of the Ohio Shale of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker parts of the Devonian shales in Kentucky. Should the black shales of Kentucky prove to be a viable geologic sink for CO{sub 2}, their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  4. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2005-07-29T23:59:59.000Z

    Devonian gas shales underlie approximately two-thirds of Kentucky. In the shale, natural gas is adsorbed on clay and kerogen surfaces. This is analogous to methane storage in coal beds, where CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. Drill cuttings from the Kentucky Geological Survey Well Sample and Core Library were sampled to determine CO{sub 2} and CH{sub 4} adsorption isotherms. Sidewall core samples were acquired to investigate CO{sub 2} displacement of methane. An elemental capture spectroscopy log was acquired to investigate possible correlations between adsorption capacity and mineralogy. Average random vitrinite reflectance data range from 0.78 to 1.59 (upper oil to wet gas and condensate hydrocarbon maturity range). Total organic content determined from acid-washed samples ranges from 0.69 to 14 percent. CO{sub 2} adsorption capacities at 400 psi range from a low of 14 scf/ton in less organic-rich zones to more than 136 scf/ton. There is a direct correlation between measured total organic carbon content and the adsorptive capacity of the shale; CO{sub 2} adsorption capacity increases with increasing organic carbon content. Initial estimates based on these data indicate a sequestration capacity of 5.3 billion tons of CO{sub 2} in the Lower Huron Member of the Ohio Shale of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker parts of the Devonian shales in Kentucky. Should the black shales of Kentucky prove to be a viable geologic sink for CO{sub 2}, their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  5. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2004-08-01T23:59:59.000Z

    Devonian gas shales underlie approximately two-thirds of Kentucky. In the shale, natural gas is adsorbed on clay and kerogen surfaces. This is analogous to methane storage in coal beds, where CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. Drill cuttings from the Kentucky Geological Survey Well Sample and Core Library are being sampled to collect CO{sub 2} adsorption isotherms. Sidewall core samples have been acquired to investigate CO{sub 2} displacement of methane. An elemental capture spectroscopy log has been acquired to investigate possible correlations between adsorption capacity and mineralogy. Average random vitrinite reflectance data range from 0.78 to 1.59 (upper oil to wet gas and condensate hydrocarbon maturity range). Total organic content determined from acid-washed samples ranges from 0.69 to 4.62 percent. CO{sub 2} adsorption capacities at 400 psi range from a low of 19 scf/ton in less organic-rich zones to more than 86 scf/ton in the Lower Huron Member of the shale. Initial estimates based on these data indicate a sequestration capacity of 5.3 billion tons of CO{sub 2} in the Lower Huron Member of the Ohio Shale of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker parts of the Devonian shales in Kentucky. Should the black shales of Kentucky prove to be a viable geologic sink for CO{sub 2}, their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  6. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2005-01-28T23:59:59.000Z

    Devonian gas shales underlie approximately two-thirds of Kentucky. In the shale, natural gas is adsorbed on clay and kerogen surfaces. This is analogous to methane storage in coal beds, where CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. Drill cuttings from the Kentucky Geological Survey Well Sample and Core Library were sampled to determine CO{sub 2} and CH{sub 4} adsorption isotherms. Sidewall core samples were acquired to investigate CO{sub 2} displacement of methane. An elemental capture spectroscopy log was acquired to investigate possible correlations between adsorption capacity and mineralogy. Average random vitrinite reflectance data range from 0.78 to 1.59 (upper oil to wet gas and condensate hydrocarbon maturity range). Total organic content determined from acid-washed samples ranges from 0.69 to 14 percent. CO{sub 2} adsorption capacities at 400 psi range from a low of 14 scf/ton in less organic-rich zones to more than 136 scf/ton. There is a direct correlation between measured total organic carbon content and the adsorptive capacity of the shale; CO{sub 2} adsorption capacity increases with increasing organic carbon content. Initial estimates based on these data indicate a sequestration capacity of 5.3 billion tons of CO{sub 2} in the Lower Huron Member of the Ohio Shale of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker parts of the Devonian shales in Kentucky. Should the black shales of Kentucky prove to be a viable geologic sink for CO{sub 2}, their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  7. Fractured shale reservoirs: Towards a realistic model

    SciTech Connect (OSTI)

    Hamilton-Smith, T. [Applied Earth Science, Lexington, KY (United States)

    1996-09-01T23:59:59.000Z

    Fractured shale reservoirs are fundamentally unconventional, which is to say that their behavior is qualitatively different from reservoirs characterized by intergranular pore space. Attempts to analyze fractured shale reservoirs are essentially misleading. Reliance on such models can have only negative results for fractured shale oil and gas exploration and development. A realistic model of fractured shale reservoirs begins with the history of the shale as a hydrocarbon source rock. Minimum levels of both kerogen concentration and thermal maturity are required for effective hydrocarbon generation. Hydrocarbon generation results in overpressuring of the shale. At some critical level of repressuring, the shale fractures in the ambient stress field. This primary natural fracture system is fundamental to the future behavior of the fractured shale gas reservoir. The fractures facilitate primary migration of oil and gas out of the shale and into the basin. In this process, all connate water is expelled, leaving the fractured shale oil-wet and saturated with oil and gas. What fluids are eventually produced from the fractured shale depends on the consequent structural and geochemical history. As long as the shale remains hot, oil production may be obtained. (e.g. Bakken Shale, Green River Shale). If the shale is significantly cooled, mainly gas will be produced (e.g. Antrim Shale, Ohio Shale, New Albany Shale). Where secondary natural fracture systems are developed and connect the shale to aquifers or to surface recharge, the fractured shale will also produce water (e.g. Antrim Shale, Indiana New Albany Shale).

  8. Cliffs Minerals, Inc. Eastern Gas Shales Project, Ohio No. 6 series: Gallia County. Phase II report. Preliminary laboratory results

    SciTech Connect (OSTI)

    none,

    1980-06-01T23:59:59.000Z

    The US Department of Energy is funding a research and development program entitled the Eastern Gas Shales Project designed to increase commercial production of natural gas in the eastern United States from Middle and Upper Devonian Shales. On September 28, 1978 the Department of Energy entered into a cooperative agreement with Mitchell Energy Corporation to explore Devonian shale gas potential in Gallia County, Ohio. Objectives of the cost-sharing contract were the following: (1) to select locations for a series of five wells to be drilled around the periphery of a possible gas reservoir in Gallia County, Ohio; (2) to drill, core, log, case, fracture, clean up, and test each well, and to monitor production from the wells for a five-year period. This report summarizes the procedures and results of core characterization work performed at the Eastern Gas Shales Project Core Laboratory on core retrieved from the Gallia County EGSP wells, designated OH No. 6/1, OH No. 6/2, OH No. 6/3, OH No. 6/4, and OH No. 6/5. Characterization work performed includes photographic logs, fracture logs, measurements of core color variation, and stratigraphic interpretation of the cored intervals. In addition the following tests were performed by Michigan Technological University to obtain the following data: directional ultrasonic velocity; directional tensile strength, strength in point load; trends of microfractures; and hydraulic fracturing characteristics.

  9. Focus on the Marcellus Shale By Lisa Sumi

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Shale Gas: Focus on the Marcellus Shale By Lisa Sumi FOR THE OIL & GAS ACCOUNTABILITY PROJECT on potential oil and gas development in the Marcellus Shale formation in northeastern Pennsylvania · www.ogap.org #12;Shale Gas: Focus on the Marcellus Shale A REPORT COMPILED FOR THE OIL AND GAS

  10. ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION

    SciTech Connect (OSTI)

    Brandon C. Nuttall

    2005-01-01T23:59:59.000Z

    Devonian gas shales underlie approximately two-thirds of Kentucky. In the shale, natural gas is adsorbed on clay and kerogen surfaces. This is analogous to methane storage in coal beds, where CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. Drill cuttings from the Kentucky Geological Survey Well Sample and Core Library were sampled to determine CO{sub 2} and CH{sub 4} adsorption isotherms. Sidewall core samples were acquired to investigate CO{sub 2} displacement of methane. An elemental capture spectroscopy log was acquired to investigate possible correlations between adsorption capacity and mineralogy. Average random vitrinite reflectance data range from 0.78 to 1.59 (upper oil to wet gas and condensate hydrocarbon maturity range). Total organic content determined from acid-washed samples ranges from 0.69 to 14 percent. CO{sub 2} adsorption capacities at 400 psi range from a low of 14 scf/ton in less organic-rich zones to more than 136 scf/ton. Initial estimates based on these data indicate a sequestration capacity of 5.3 billion tons of CO{sub 2} in the Lower Huron Member of the Ohio Shale of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker parts of the Devonian shales in Kentucky. Should the black shales of Kentucky prove to be a viable geologic sink for CO{sub 2}, their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

  11. Process for oil shale retorting

    DOE Patents [OSTI]

    Jones, John B. (300 Enterprise Bldg., Grand Junction, CO 80501); Kunchal, S. Kumar (300 Enterprise Bldg., Grand Junction, CO 80501)

    1981-10-27T23:59:59.000Z

    Particulate oil shale is subjected to a pyrolysis with a hot, non-oxygenous gas in a pyrolysis vessel, with the products of the pyrolysis of the shale contained kerogen being withdrawn as an entrained mist of shale oil droplets in a gas for a separation of the liquid from the gas. Hot retorted shale withdrawn from the pyrolysis vessel is treated in a separate container with an oxygenous gas so as to provide combustion of residual carbon retained on the shale, producing a high temperature gas for the production of some steam and for heating the non-oxygenous gas used in the oil shale retorting process in the first vessel. The net energy recovery includes essentially complete recovery of the organic hydrocarbon material in the oil shale as a liquid shale oil, a high BTU gas, and high temperature steam.

  12. Petrophysical Properties of Unconventional Low-Mobility Reservoirs (Shale Gas and Heavy Oil) by Using Newly Developed Adaptive Testing Approach

    E-Print Network [OSTI]

    Torres-VerdĂ­n, Carlos

    SPE 159172 Petrophysical Properties of Unconventional Low-Mobility Reservoirs (Shale Gas and Heavy Oil) by Using Newly Developed Adaptive Testing Approach Hamid Hadibeik, The University of Texas the dynamics of water- and oil- base mud-filtrate invasion that produce wellbore supercharging were developed

  13. Microbial communities in flowback water impoundments from hydraulic fracturing for recovery of shale gas

    SciTech Connect (OSTI)

    Mohan, Arvind Murali; Hartsock, Angela; Hammack, Richard W.; Vidic, Radisav D; Gregory, Kelvin B.

    2013-12-01T23:59:59.000Z

    Hydraulic fracturing for natural gas extraction from shale produces waste brine known as flowback that is impounded at the surface prior to reuse and/or disposal. During impoundment, microbial activity can alter the fate of metals including radionuclides, give rise to odorous compounds, and result in biocorrosion that complicates water and waste management and increases production costs. Here, we describe the microbial ecology at multiple depths of three flowback impoundments from the Marcellus shale that were managed differently. 16S rRNA gene clone libraries revealed that bacterial communities in the untreated and biocide-amended impoundments were depth dependent, diverse, and most similar to species within the taxa [gamma]-proteobacteria, [alpha]-proteobacteria, ?-proteobacteria, Clostridia, Synergistetes, Thermotogae, Spirochetes, and Bacteroidetes. The bacterial community in the pretreated and aerated impoundment was uniform with depth, less diverse, and most similar to known iodide-oxidizing bacteria in the [alpha]-proteobacteria. Archaea were identified only in the untreated and biocide-amended impoundments and were affiliated to the Methanomicrobia class. This is the first study of microbial communities in flowback water impoundments from hydraulic fracturing. The findings expand our knowledge of microbial diversity of an emergent and unexplored environment and may guide the management of flowback impoundments.

  14. Geology of Devonian shale oil and gas in Pleasants, Wood, and Ritchie Counties, WV

    SciTech Connect (OSTI)

    Filer, J.K.

    1984-05-01T23:59:59.000Z

    The Upper Devonian shale play of western West Virginia is an area of active development of unconventional oil and gas reserves. It is unconventional in that production is from fine grained fractured reservoirs. Examination of recent drilling results has led to a more detailed understanding of the structure and stratigraphy of the area, which in turn can explain some of the production trends observed. Areas of greater fracture density and therefore higher productivity are related to areas of shearing motion in the Burning Springs Thrust Sheet. Open flows after stimulation in these wells can be very high, but first year decline is rapid. At this time it is uncertain how long a production life these wells will have.

  15. Geology of Devonian shale oil and gas in Pleasants, Wood, and Ritchie Counties, West Virginia

    SciTech Connect (OSTI)

    Filer, J.K.

    1987-12-01T23:59:59.000Z

    The Upper Devonian shale play of western West Virginia is an area of active development of unconventional oil and gas reserves. It is unconventional in that production is from fine-grained fractured reservoirs. Examination of recent drilling results has led to a more detailed understanding of the structure and stratigraphy of the area, which in turn can explain some of the production trends observed. Areas of greater fracture density and therefore higher productivity are related to areas of shearing motion in the Burning Springs thrust sheet. Open flows after stimulation in these wells can be very high, but first-year decline is rapid. It is uncertain at this time how long a production life these wells will have.

  16. Investigation of methane adsorption and its effect on gas transport in shale matrix through microscale and mesoscale simulations

    E-Print Network [OSTI]

    Li, ZhongZhen; Chen, Li; Kangd, Qinjun; He, Ya-Ling; Tao, Wen-Quan

    2015-01-01T23:59:59.000Z

    Methane adsorption and its effect on fluid flow in shale matrix are investigated through multi-scale simulation scheme by using molecular dynamics (MD) and lattice Boltzmann (LB) methods. Equilibrium MD simulations are conducted to study methane adsorption on the organic and inorganic walls of nanopores in shale matrix with different pore sizes and pressures. Density and pressure distributions within the adsorbed layer and the free gas region are discussed. The illumination of the MD results on larger scale LB simulations is presented. Pressure-dependent thickness of adsorbed layer should be adopted and the transport of adsorbed layer should be properly considered in LB simulations. LB simulations, which are based on a generalized Navier-Stokes equation for flow through low-permeability porous media with slippage, are conducted by taking into consideration the effects of adsorbed layer. It is found that competitive effects of slippage and adsorbed layer exist on the permeability of shale matrix, leading to di...

  17. UK Oil and Gas Collaborative Doctoral Training Centre (2014 start) Project Title: Are non-marine organic-rich shales suitable exploration targets?

    E-Print Network [OSTI]

    Henderson, Gideon

    UK Oil and Gas Collaborative Doctoral Training Centre (2014 start) Project Title: Are non-marine organic-rich shales suitable exploration targets? (EARTH-15-SR2) Host institution: University of Oxford Supervisor 1: Stuart Robinson Supervisor 2: Steve Hesselbo (University of Exeter) Project description: Shales

  18. Water-related Issues Affecting Conventional Oil and Gas Recovery and Potential Oil-Shale Development in the Uinta Basin, Utah

    SciTech Connect (OSTI)

    Michael Vanden Berg; Paul Anderson; Janae Wallace; Craig Morgan; Stephanie Carney

    2012-04-30T23:59:59.000Z

    Saline water disposal is one of the most pressing issues with regard to increasing petroleum and natural gas production in the Uinta Basin of northeastern Utah. Conventional oil fields in the basin provide 69 percent of Utah?s total crude oil production and 71 percent of Utah?s total natural gas, the latter of which has increased 208% in the past 10 years. Along with hydrocarbons, wells in the Uinta Basin produce significant quantities of saline water ? nearly 4 million barrels of saline water per month in Uintah County and nearly 2 million barrels per month in Duchesne County. As hydrocarbon 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 freshwater sources. Many companies are reluctantly resorting to evaporation ponds as a short-term solution, but these ponds have limited capacity, are prone to leakage, and pose potential risks to birds and other wildlife. Many Uinta Basin operators claim that oil and natural gas production cannot reach its full potential until a suitable, long-term saline water disposal solution is determined. The enclosed project was divided into three parts: 1) re-mapping the base of the moderately saline aquifer in the Uinta Basin, 2) creating a detailed geologic characterization of the Birds Nest aquifer, a potential reservoir for large-scale saline water disposal, and 3) collecting and analyzing water samples from the eastern Uinta Basin to establish baseline water quality. Part 1: Regulators currently stipulate that produced saline water must be disposed of into aquifers that already contain moderately saline water (water that averages at least 10,000 mg/L total dissolved solids). The UGS has re-mapped the moderately saline water boundary in the subsurface of the Uinta Basin using a combination of water chemistry data collected from various sources and by analyzing geophysical well logs. By re-mapping the base of the moderately saline aquifer using more robust data and more sophisticated computer-based mapping techniques, regulators now have the information needed to more expeditiously grant water disposal permits while still protecting freshwater resources. Part 2: Eastern Uinta Basin gas producers have identified the Birds Nest aquifer, located in the Parachute Creek Member of the Green River Formation, as the most promising reservoir suitable for large-volume saline water disposal. This aquifer formed from the dissolution of saline minerals that left behind large open cavities and fractured rock. This new and complete understanding the aquifer?s areal extent, thickness, water chemistry, and relationship to Utah?s vast oil shale resource will help operators and regulators determine safe saline water disposal practices, directly impacting the success of increased hydrocarbon production in the region, while protecting potential future oil shale production. Part 3: In order to establish a baseline of water quality on lands identified by the U.S. Bureau of Land Management as having oil shale development potential in the southeastern Uinta Basin, the UGS collected biannual water samples over a three-year period from near-surface aquifers and surface sites. The near-surface and relatively shallow groundwater quality information will help in the development of environmentally sound water-management solutions for a possible future oil shale and oil sands industry and help assess the sensitivity of the alluvial and near-surface bedrock aquifers. This multifaceted study will provide a better understanding of the aquifers in Utah?s Uinta Basin, giving regulators the tools needed to protect precious freshwater resources while still allowing for increased hydrocarbon production.

  19. Geochemical and Strontium Isotope Characterization of Produced Waters from Marcellus Shale Natural Gas Extraction

    SciTech Connect (OSTI)

    Elizabeth C. Chapman,† Rosemary C. Capo,† Brian W. Stewart,*,† Carl S. Kirby,‡ Richard W. Hammack,§

    2012-02-24T23:59:59.000Z

    Extraction of natural gas by hydraulic fracturing of the Middle Devonian Marcellus Shale, a major gas-bearing unit in the Appalachian Basin, results in significant quantities of produced water containing high total dissolved solids (TDS). We carried out a strontium (Sr) isotope investigation to determine the utility of Sr isotopes in identifying and quantifying the interaction of Marcellus Formation produced waters with other waters in the Appalachian Basin in the event of an accidental release, and to provide information about the source of the dissolved solids. Strontium isotopic ratios of Marcellus produced waters collected over a geographic range of ?375 km from southwestern to northeastern Pennsylvania define a relatively narrow set of values (?Sr SW = +13.8 to +41.6, where ?Sr SW is the deviation of the 87Sr/86Sr ratio from that of seawater in parts per 104); this isotopic range falls above that of Middle Devonian seawater, and is distinct from most western Pennsylvania acid mine drainage and Upper Devonian Venango Group oil and gas brines. The uniformity of the isotope ratios suggests a basin-wide source of dissolved solids with a component that is more radiogenic than seawater. Mixing models indicate that Sr isotope ratios can be used to sensitively differentiate between Marcellus Formation produced water and other potential sources of TDS into ground or surface waters.

  20. Geochemical and Strontium Isotope Characterization of Produced Waters from Marcellus Shale Natural Gas Extraction

    SciTech Connect (OSTI)

    Chapman, Elizabeth C; Capo, Rosemary C.; Stewart, Brian W.; Kirby, Carl S.; Hammack, Richard W.; Schroeder, Karl T.; Edenborn, Harry M.

    2012-03-20T23:59:59.000Z

    Extraction of natural gas by hydraulic fracturing of the Middle Devonian Marcellus Shale, a major gas-bearing unit in the Appalachian Basin, results in significant quantities of produced water containing high total dissolved solids (TDS). We carried out a strontium (Sr) isotope investigation to determine the utility of Sr isotopes in identifying and quantifying the interaction of Marcellus Formation produced waters with other waters in the Appalachian Basin in the event of an accidental release, and to provide information about the source of the dissolved solids. Strontium isotopic ratios of Marcellus produced waters collected over a geographic range of 375 km from southwestern to northeastern Pennsylvania define a relatively narrow set of values (?{sub Sr}{sup SW} = +13.8 to +41.6, where ?{sub Sr}{sup SW} is the deviation of the {sup 87}Sr/{sup 86}Sr ratio from that of seawater in parts per 10{sup 4}); this isotopic range falls above that of Middle Devonian seawater, and is distinct from most western Pennsylvania acid mine drainage and Upper Devonian Venango Group oil and gas brines. The uniformity of the isotope ratios suggests a basin-wide source of dissolved solids with a component that is more radiogenic than seawater. Mixing models indicate that Sr isotope ratios can be used to sensitively differentiate between Marcellus Formation produced water and other potential sources of TDS into ground or surface waters.

  1. Wastewater treatment in the oil-shale industry

    SciTech Connect (OSTI)

    Fox, J.P.; Phillips, T.E.

    1980-08-01T23:59:59.000Z

    Because of the stringent state and federal standards governing the discharge of wastes into local waters and the limited water supplies in this area, an oil shale industry will probably reuse process effluents to the maximum extent possible and evaporate the residuals. Therefore, discharge of effluents into surface and ground waters may not be necessary. This paper reviews the subject of wastewater treatment for an oil shale industry and identifies key issues and research priorities that must be resolved before a large-scale commercial industry can be developed. It focuses on treatment of the waters unique to an oil shale industry: retort water, gas condensate, and mine water. Each presents a unique set of challenges.

  2. Visualization of Large-Scale Distributed Data

    E-Print Network [OSTI]

    Johnson, Andrew

    that are now considered the "lenses" for examining large-scale data. THE LARGE-SCALE DATA VISUALIZATIONVisualization of Large-Scale Distributed Data Jason Leigh1 , Andrew Johnson1 , Luc Renambot1 representation of data and the interactive manipulation and querying of the visualization. Large-scale data

  3. Occurrence of Multiple Fluid Phases Across a Basin, in the Same Shale Gas Formation – Eagle Ford Shale Example

    E-Print Network [OSTI]

    Tian, Yao

    2014-04-29T23:59:59.000Z

    production data. Well deliverability was modeled to optimize oil production rate by designing appropriate operational parameters. From NW to SE, Eagle Ford fluids evolve from oil, to gas condensate and, finally, to dry gas, reflecting greater depth...

  4. Secretary of Energy Advisory Board Subcommittee Releases Shale...

    Office of Environmental Management (EM)

    Releases Shale Gas Recommendations Secretary of Energy Advisory Board Subcommittee Releases Shale Gas Recommendations August 11, 2011 - 8:54am Addthis WASHINGTON, D.C. - A diverse...

  5. Secretary of Energy Advisory Board Hosts Conference Call on Shale...

    Energy Savers [EERE]

    of Energy Advisory Board Hosts Conference Call on Shale Gas Draft Report Secretary of Energy Advisory Board Hosts Conference Call on Shale Gas Draft Report November 10, 2011 -...

  6. A New Method for History Matching and Forecasting Shale Gas/Oil Reservoir Production Performance with Dual and Triple Porosity Models

    E-Print Network [OSTI]

    Samandarli, Orkhan

    2012-10-19T23:59:59.000Z

    Different methods have been proposed for history matching production of shale gas/oil wells which are drilled horizontally and usually hydraulically fractured with multiple stages. These methods are simulation, analytical models, and empirical...

  7. Parameter sensitivity analysis of tailored-pulse loading stimulation of Devonian gas shale

    SciTech Connect (OSTI)

    Barbour, T.G.; Mihalik, G.R.

    1980-11-01T23:59:59.000Z

    An evaluation of three tailored-pulse loading parameters has been undertaken to access their importance in gas well stimulation technology. This numerical evaluation was performed using STEALTH finite-difference codes and was intended to provide a measure of the effects of various tailored-pulse load configurations on fracture development in Devonian gas shale. The three parameters considered in the sensitivity analysis were: loading rate; decay rate; and sustained peak pressures. By varying these parameters in six computations and comparing the relative differences in fracture initiation and propagation the following conclusions were drawn: (1) Fracture initiation is directly related to the loading rate aplied to the wellbore wall. Loading rates of 10, 100 and 1000 GPa/sec were modeled. (2) If yielding of the rock can be prevented or minimized, by maintaining low peak pressures in the wellbore, increasing the pulse loading rate, to say 10,000 GPa/sec or more, should initiate additional multiple fractures. (3) Fracture initiation does not appear to be related to the tailored-pulse decay rate. Fracture extension may be influenced by the rate of decay. The slower the decay rate, the longer the crack extension. (4) Fracture initiation does not appear to be improved by a high pressure plateau in the tailored-pulse. Fracture propagation may be enhanced if the maintained wellbore pressure plateau is of sufficient magnitude to extent the range of the tangential tensile stresses to greater radial distances. 26 figures, 2 tables.

  8. A CONTINUOUS FLOW BIOASSAY TECHNIQUE FOR ASSESSING THE TOXICITY OF OIL-SHALE-RELATED EFFLUENTS: PRELIMINARY RESULTS WITH TWO SPECIES OF CADDISFLY LARVAE

    E-Print Network [OSTI]

    Russell, Peter P.

    2011-01-01T23:59:59.000Z

    Large~scale commercial shale oil production has yet to takeDerived from In Situ Oil Shale Processing. In: ProceedingsConsiderations for an In-Situ Oil Shale Process Water. LETC/

  9. Oil shale, tar sands, and related materials

    SciTech Connect (OSTI)

    Stauffer, H.C.

    1981-01-01T23:59:59.000Z

    This sixteen-chapter book focuses on the many problems and the new methodology associated with the commercialization of the oil shale and tar sand industry. Topics discussed include: an overview of the Department of Energy's oil shale R, D, and D program; computer simulation of explosive fracture of oil shale; fracturing of oil shale by treatment with liquid sulfur dioxide; chemistry of shale oil cracking; hydrogen sulfide evolution from Colorado oil shale; a possible mechanism of alkene/alkane production in oil shale retorting; oil shale retorting kinetics; kinetics of oil shale char gasification; a comparison of asphaltenes from naturally occurring shale bitumen and retorted shale oils: the influence of temperature on asphaltene structure; beneficiation of Green River oil shale by density methods; beneficiation of Green River oil shale pelletization; shell pellet heat exchange retorting: the SPHER energy-efficient process for retorting oil shale; retorted oil shale disposal research; an investigation into the potential economics of large-scale shale oil production; commercial scale refining of Paraho crude shale oil into military specification fuels; relation between fuel properties and chemical composition; chemical characterization/physical properties of US Navy shale-II fuels; relation between fuel properties and chemical composition: stability of oil shale-derived jet fuel; pyrolysis of shale oil residual fractions; synfuel stability: degradation mechanisms and actual findings; the chemistry of shale oil and its refined products; the reactivity of Cold Lake asphaltenes; influence of thermal processing on the properties of Cold Lake asphaltenes: the effect of distillation; thermal recovery of oil from tar sands by an energy-efficient process; and hydropyrolysis: the potential for primary upgrading of tar sand bitumen.

  10. Study of Multi-scale Transport Phenomena in Tight Gas and Shale Gas Reservoir Systems 

    E-Print Network [OSTI]

    Freeman, Craig Matthew

    2013-11-25T23:59:59.000Z

    . In this work we contribute a numerical model which captures multicomponent desorption, diffusion, and phase behavior in ultra-tight rocks. We also describe a workflow for incorporating measured gas composition data into modern production analysis....

  11. DEVELOPMENT OF GLASS AND GLASS CERAMIC PROPPANTS FROM GAS SHALE WELL DRILL CUTTINGS

    SciTech Connect (OSTI)

    Johnson, F.; Fox, K.

    2013-10-02T23:59:59.000Z

    The objective of this study was to develop a method of converting drill cuttings from gas shale wells into high strength proppants via flame spheroidization and devitrification processing. Conversion of drill cuttings to spherical particles was only possible for small particle sizes (< 53 {micro}m) using a flame former after a homogenizing melting step. This size limitation is likely to be impractical for application as conventional proppants due to particle packing characteristics. In an attempt to overcome the particle size limitation, sodium and calcium were added to the drill cuttings to act as fluxes during the spheroidization process. However, the flame former remained unable to form spheres from the fluxed material at the relatively large diameters (0.5 - 2 mm) targeted for proppants. For future work, the flame former could be modified to operate at higher temperature or longer residence time in order to produce larger, spherical materials. Post spheroidization heat treatments should be investigated to tailor the final phase assemblage for high strength and sufficient chemical durability.

  12. Analysis of the structural parameters that influence gas production from the Devonian shale. Annual progress report, 1979-1980. Volume III. Data repository and reports published during fiscal year 1979-1980: production, unsponsored research

    SciTech Connect (OSTI)

    Negus-De Wys, J.; Dixon, J. M.; Evans, M. A.; Lee, K. D.; Ruotsala, J. E.; Wilson, T. H.; Williams, R. T.

    1980-10-01T23:59:59.000Z

    This document consists of the following papers: inorganic geochemistry studies of the Eastern Kentucky Gas Field; lithology studies of upper Devonian well cuttings in the Eastern Kentucky Gas Field; possible effects of plate tectonics on the Appalachian Devonian black shale production in eastern Kentucky; preliminary depositional model for upper Devonian Huron age organic black shale in the Eastern Kentucky Gas Field; the anatomy of a large Devonian black shale gas field; the Cottageville (Mount Alto) Gas Field, Jackson County, West Virginia: a case study of Devonian shale gas production; the Eastern Kentucky Gas Field: a geological study of the relationships of Ohio Shale gas occurrences to structure, stratigraphy, lithology, and inorganic geochemical parameters; and a statistical analysis of geochemical data for the Eastern Kentucky Gas Field.

  13. A Technical and Economic Study of Completion Techniques In Five Emerging U.S. Gas Shale Plays

    E-Print Network [OSTI]

    Agrawal, Archna

    2010-07-14T23:59:59.000Z

    on the location of the one well in different portions of the basin. Since there is such a large range in the gas content, the EUR varies quite a bit in the Antrim. Through core analysis, pressure transient testing, and well testing, Pickering (2009) believes... that the estimated ultimate recovery (EUR) could be as low as 20% to as high at 60%. If the recovery factor actually gets high enough to 60%, it can be deduced that operators will produce adsorbed gas that will be released. Shale Mineralogy The mineralogy...

  14. Large-Scale Renewable Energy Guide Webinar

    Broader source: Energy.gov [DOE]

    Webinar introduces the “Large Scale Renewable Energy Guide." The webinar will provide an overview of this important FEMP guide, which describes FEMP's approach to large-scale renewable energy projects and provides guidance to Federal agencies and the private sector on how to develop a common process for large-scale renewable projects.

  15. Conundrum of the Large Scale Streaming

    E-Print Network [OSTI]

    T. M. Malm

    1999-09-12T23:59:59.000Z

    The etiology of the large scale peculiar velocity (large scale streaming motion) of clusters would increasingly seem more tenuous, within the context of the gravitational instability hypothesis. Are there any alternative testable models possibly accounting for such large scale streaming of clusters?

  16. U.S. Natural Gas Gross Withdrawals from Shale Gas (Million Cubic Feet)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in2,EHSSCoal ProductionLiquefiedNatural GasGas

  17. Marcellus Shale Educational Webinar Series

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    #12;Marcellus Shale Litigation and Legislation December 17, 2009 7 . Pennsylvania Oil and Gas Law1 Marcellus Shale Educational Webinar Series October 2009 - March 2010 Penn State Cooperative Extension #12;2 Marcellus Shale Webinar Series Planning Committee · Members ­ Mark Douglass, Jefferson

  18. Shale Play Industry Transportation Challenges,

    E-Print Network [OSTI]

    Minnesota, University of

    ­ High volume commodi-es flows in and out of shale plays · Sand In....Oil in excess of 50 MMT/Yr. · Life of current Shale Oil & Gas explora-on trend ­ 2012) #12;Shale Play Oil Industry A Look at the Baaken · 2-3 Unit Trains

  19. Evidence of Reopened Microfractures in Production Data of Hydraulically Fractured Shale Gas Wells

    E-Print Network [OSTI]

    Apiwathanasorn, Sippakorn

    2012-10-19T23:59:59.000Z

    Frequently a discrepancy is found between the stimulated shale volume (SSV) estimated from production data and the SSV expected from injected water and proppant volume. One possible explanation is the presence of a fracture network, often termed...

  20. Stochastic Modeling of a Fracture Network in a Hydraulically Fractured Shale-Gas Reservoir 

    E-Print Network [OSTI]

    Mhiri, Adnene

    2014-08-10T23:59:59.000Z

    The fundamental behavior of fluid production from shale/ultra-low permeability reservoirs that are produced under a constant wellbore pressure remains difficult to quantify, which is believed to be (at least in part) due to the complexity...

  1. DOE-Sponsored Software Application Assists Exploration of Gas-Rich Fayetteville Shale

    Broader source: Energy.gov [DOE]

    A project sponsored by the U.S. Department of Energy has resulted in the development of the Fayetteville Shale Infrastructure Placement Analysis System, or IPAS, which is now available online.

  2. A study of the effects of stimulation on Devonian Shale gas well performance 

    E-Print Network [OSTI]

    Zuber, Michael Dean

    1985-01-01T23:59:59.000Z

    that makes up the Appalachian Basin. The Devonian Shale is economical- ly productive from many different combinations of reservoir parameters. Consistencies in reservoir characteristics seem to exist only on a county by county basis (and much smaller... fracture, and ky is the formation permeability in the direction perpendic- ular to the induced hydraulic fracture (see Fig. 2). Figure 2 is a schematic diagram showing how this model was used to simulate a Devonian Shale well with permeability...

  3. Catalytic activity of oxidized (combusted) oil shale for removal of nitrogen oxides with ammonia as a reductant in combustion gas streams, Part 2

    SciTech Connect (OSTI)

    Reynolds, J.G.; Taylor, R.W.; Morris, C.J.

    1993-01-04T23:59:59.000Z

    Oxidized oil shale from the combustor in the LLNL Hot-Recycled-Solids (HRS) oil shale retorting process has been found to be a catalyst for removing nitrogen oxides from laboratory gas streams using NH{sub 3} as a reductant. Oxidized Green River oil shale heated at 10{degree}C/min in an Ar/O{sub 2}/NO/NH{sub 3} mixture ({approximately}93%/6%/2000 ppM/4000 ppM) with a gas residence time of {approximately}0.6 sec removed NO between 250 and 500{degree}C, with maximum removal of 70% at {approximately}400{degree}C. Under isothermal conditions with the same gas mixture, the maximum NO removal was {approximately}64%. When CO{sub 2} was added to the gas mixture at {approximately}8%, the NO removal dropped to {approximately}50%. However, increasing the gas residence time to {approximately}1.2 sec, increased NO removal to 63%. Nitrogen balances of these experiments suggest selective catalytic reduction of NO is occurring using NH{sub 3} as the reductant. These results are not based on completely optimized process conditions, but indicate oxidized oil shale is an effective catalyst for NO removal from combustion gas streams using NH{sub 3} as the reductant. Parameters calculated for implementing oxidized oil shale for NO{sub x} remediation on the current HRS retort indicate an abatement device is practical to construct.

  4. Catalytic activity of oxidized (combusted) oil shale for removal of nitrogen oxides with ammonia as a reductant in combustion gas streams, Part 2

    SciTech Connect (OSTI)

    Reynolds, J.G.; Taylor, R.W.; Morris, C.J.

    1993-01-04T23:59:59.000Z

    Oxidized oil shale from the combustor in the LLNL Hot-Recycled-Solids (HRS) oil shale retorting process has been found to be a catalyst for removing nitrogen oxides from laboratory gas streams using NH[sub 3] as a reductant. Oxidized Green River oil shale heated at 10[degree]C/min in an Ar/O[sub 2]/NO/NH[sub 3] mixture ([approximately]93%/6%/2000 ppM/4000 ppM) with a gas residence time of [approximately]0.6 sec removed NO between 250 and 500[degree]C, with maximum removal of 70% at [approximately]400[degree]C. Under isothermal conditions with the same gas mixture, the maximum NO removal was [approximately]64%. When CO[sub 2] was added to the gas mixture at [approximately]8%, the NO removal dropped to [approximately]50%. However, increasing the gas residence time to [approximately]1.2 sec, increased NO removal to 63%. Nitrogen balances of these experiments suggest selective catalytic reduction of NO is occurring using NH[sub 3] as the reductant. These results are not based on completely optimized process conditions, but indicate oxidized oil shale is an effective catalyst for NO removal from combustion gas streams using NH[sub 3] as the reductant. Parameters calculated for implementing oxidized oil shale for NO[sub x] remediation on the current HRS retort indicate an abatement device is practical to construct.

  5. Florida Natural Gas Gross Withdrawals from Shale Gas (Million Cubic Feet)

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,12803 Table A1.Gas

  6. Florida Natural Gas Gross Withdrawals from Shale Gas (Million Cubic Feet)

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,12803 Table A1.GasYear Jan Feb Mar Apr May Jun Jul Aug Sep Oct

  7. Numerical-model developments for stimulation technologies in the Eastern Gas Shales Project

    SciTech Connect (OSTI)

    Barbour, T.G.; Maxwell, D.E.; Young, C.

    1980-01-01T23:59:59.000Z

    These efforts were directed towards the development of a numerical tensile failure model that could be used to make a parameter sensitivity study of the EGSP wellbore stimulation methods for gas recovery in Devonain shales, calculations were performed using the NTS Multi-Frac Mineback Experiments as the geometry, boundary conditions and material properties of the models. Several major accomplishments were achieved during this task. These include: development of a Crack and Void Strain (CAVS) tensile failure model for one-dimensional fracture analysis using the one-dimensional geometries available in SAI's STEALTH 1-D finite-difference code; modification of the original CAVS tensile failure criteria to improve its representation of multiple fracture development by introducing a logic that adjusts the material's tensile strength (both for crack initiation and crack propagation) according to the degree of cracking that has occurred; adding a submodel to CAVS to allow for cracking propping when a crack is reclosed and to require energy to be expanded during this process; adding a submodel to CAVS to allow for crack pressurization when a crack void strain is in communication with the fluid pressure of the borehole; and performing a parameter sensitivity analysis to determine the effect that the material properties of the rock has on crack development, to include the effects of yielding and compaction. Using the CAVS model and its submodels, a series of STEALTH calculations were then performed to estimate the response of the NTS unaugmented Dynafrac experiment. Pressure, acceleration and stress time histories and snapshot data were obtained and should aid in the evaluation of these experiments. Crack patterns around the borehole were also calculated and should be valuable in a comparison with the fracture patterns observed during mineback.

  8. 2012 by the American Academy of Arts & Sciences Is Shale Gas Good for Climate Change?

    E-Print Network [OSTI]

    Schrag, Daniel

    fracturing ("fracking") techniques that greatly increase the permeability of the shale, vast reserves that the chemicals used in the fracking process will contaminate groundwater aquifers; others are concerned of toxic waste from produced water (a mixture of formation brines and chemicals from the fracking process

  9. Catalytic activity of oxidized (combusted) oil shale for removal of nitrogen oxides with ammonia as a reductant in combustion gas streams, Part 1

    SciTech Connect (OSTI)

    Reynolds, J.G.; Taylor, R.W.; Morris, C.J.

    1992-06-10T23:59:59.000Z

    Oxidized oil shale from the combustor in the LLNL hot recycle solids oil shale retorting process has been studied as a catalyst for removing nitrogen oxides from laboratory gas streams using NH{sub 3} as areductant. Combusted Green River oil shale heated at 10{degrees}C/min in an Ar/O{sub 2}/NO/NH{sub 3} mixture ({approximately}93%/6%/2000 ppm/4000 ppm) with a gas residence time of {approximately}0.6 sec exhibited NO removal between 250 and 500{degrees}C, with maximum removal of 70% at {approximately}400{degrees}C. Under isothermal conditions with the same gas mixture, the maximum NO removal was found to be {approximately}64%. When CO{sub 2} was added to the gas mixture at {approximately}8%, the NO removal dropped to {approximately}50%. However, increasing the gas residence time to {approximately}1.2 sec, increased NO removal to 63%. These results are not based on optimized process conditions, but indicate oxidized (combusted) oil shale is an effective catalyst for NO removal from combustion gas streams using NH{sub 3} as the reductant.

  10. DLFM library tools for large scale dynamic applications.

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

    DLFM library tools for large scale dynamic applications DLFM library tools for large scale dynamic applications Large scale Python and other dynamic applications may spend huge...

  11. Combustion heater for oil shale

    DOE Patents [OSTI]

    Mallon, Richard G. (Livermore, CA); Walton, Otis R. (Livermore, CA); Lewis, Arthur E. (Los Altos, CA); Braun, Robert L. (Livermore, CA)

    1985-01-01T23:59:59.000Z

    A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650.degree.-700.degree. C. for use as a process heat source.

  12. Combustion heater for oil shale

    DOE Patents [OSTI]

    Mallon, R.; Walton, O.; Lewis, A.E.; Braun, R.

    1983-09-21T23:59:59.000Z

    A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650 to 700/sup 0/C for use as a process heat source.

  13. Microfluidic Large-Scale Integration: The Evolution

    E-Print Network [OSTI]

    Quake, Stephen R.

    Microfluidic Large-Scale Integration: The Evolution of Design Rules for Biological Automation, polydimethylsiloxane Abstract Microfluidic large-scale integration (mLSI) refers to the develop- ment of microfluidic, are discussed. Several microfluidic components used as building blocks to create effective, complex, and highly

  14. Oil shale technology

    SciTech Connect (OSTI)

    Lee, S. (Akron Univ., OH (United States). Dept. of Chemical Engineering)

    1991-01-01T23:59:59.000Z

    Oil shale is undoubtedly an excellent energy source that has great abundance and world-wide distribution. Oil shale industries have seen ups and downs over more than 100 years, depending on the availability and price of conventional petroleum crudes. Market forces as well as environmental factors will greatly affect the interest in development of oil shale. Besides competing with conventional crude oil and natural gas, shale oil will have to compete favorably with coal-derived fuels for similar markets. Crude shale oil is obtained from oil shale by a relatively simple process called retorting. However, the process economics are greatly affected by the thermal efficiencies, the richness of shale, the mass transfer effectiveness, the conversion efficiency, the design of retort, the environmental post-treatment, etc. A great many process ideas and patents related to the oil shale pyrolysis have been developed; however, relatively few field and engineering data have been published. Due to the vast heterogeneity of oil shale and to the complexities of physicochemical process mechanisms, scientific or technological generalization of oil shale retorting is difficult to achieve. Dwindling supplied of worldwide petroleum reserves, as well as the unprecedented appetite of mankind for clean liquid fuel, has made the public concern for future energy market grow rapidly. the clean coal technology and the alternate fuel technology are currently of great significance not only to policy makers, but also to process and chemical researchers. In this book, efforts have been made to make a comprehensive text for the science and technology of oil shale utilization. Therefore, subjects dealing with the terminological definitions, geology and petrology, chemistry, characterization, process engineering, mathematical modeling, chemical reaction engineering, experimental methods, and statistical experimental design, etc. are covered in detail.

  15. Using Flue Gas Huff 'n Puff Technology and Surfactants to Increase Oil Production from the Antelope Shale Formation of the Railroad Gap Oil Field

    SciTech Connect (OSTI)

    McWilliams, Michael

    2001-12-18T23:59:59.000Z

    This project was designed to test cyclic injection of exhaust flue gas from compressors located in the field to stimulate production from Antelope Shale zone producers. Approximately 17,000 m{sup 3} ({+-}600 MCF) of flue gas was to be injected into each of three wells over a three-week period, followed by close monitoring of production for response. Flue gas injection on one of the wells would be supplemented with a surfactant.

  16. Theoretical Tools for Large Scale Structure

    E-Print Network [OSTI]

    J. R. Bond; L. Kofman; D. Pogosyan; J. Wadsley

    1998-10-06T23:59:59.000Z

    We review the main theoretical aspects of the structure formation paradigm which impinge upon wide angle surveys: the early universe generation of gravitational metric fluctuations from quantum noise in scalar inflaton fields; the well understood and computed linear regime of CMB anisotropy and large scale structure (LSS) generation; the weakly nonlinear regime, where higher order perturbation theory works well, and where the cosmic web picture operates, describing an interconnected LSS of clusters bridged by filaments, with membranes as the intrafilament webbing. Current CMB+LSS data favour the simplest inflation-based $\\Lambda$CDM models, with a primordial spectral index within about 5% of scale invariant and $\\Omega_\\Lambda \\approx 2/3$, similar to that inferred from SNIa observations, and with open CDM models strongly disfavoured. The attack on the nonlinear regime with a variety of N-body and gas codes is described, as are the excursion set and peak-patch semianalytic approaches to object collapse. The ingredients are mixed together in an illustrative gasdynamical simulation of dense supercluster formation.

  17. Oil shale retorting method and apparatus

    SciTech Connect (OSTI)

    York, E.D.

    1983-03-22T23:59:59.000Z

    Disclosed is an improved method and apparatus for the retorting of oil shale and the formation of spent oil shale having improved cementation properties. The improved method comprises passing feed comprising oil shale to a contacting zone wherein the feed oil shale is contacted with heat transfer medium to heat said shale to retorting temperature. The feed oil shale is substantially retorted to form fluid material having heating value and forming partially spent oil shale containing carbonaceous material. At least a portion of the partially spent oil shale is passed to a combustion zone wherein the partially spent oil shale is contacted with oxidizing gas comprising oxygen and steam to substantially combust carbonaceous material forming spent oil shale having improved cementation properties.

  18. Using Decline Curve Analysis, Volumetric Analysis, and Bayesian Methodology to Quantify Uncertainty in Shale Gas Reserve Estimates

    E-Print Network [OSTI]

    Gonzalez Jimenez, Raul 1988-

    2012-11-30T23:59:59.000Z

    . [ ( ) ] .................................................................................. (4) In Eq. (4), ? is a dimensionless exponent parameter and ? is the characteristic time parameter, months. Can and Kabir (2012) analyzed production data from 820 wells from three different shale formations (220 wells in the Bakken oil shale...

  19. Shale oil demetallization process

    SciTech Connect (OSTI)

    Silverman, M. A.

    1985-08-13T23:59:59.000Z

    Trace metals, particularly As, Fe and Ni, are removed from hydrocarbonaceous oils, particularly shale oil by contacting the shale oil with quadrolobe alumina with or without a processing gas such as hydrogen or nitrogen at 500/sup 0/ F. to 800/sup 0/ F. at 250 to 750 psig and LHSV of 0.4 to 3.0 to deposit a portion of said trace metal onto said alumina and recover an oil product having substantially reduced amounts of trace metal.

  20. Program Management for Large Scale Engineering Programs

    E-Print Network [OSTI]

    Oehmen, Josef

    The goal of this whitepaper is to summarize the LAI research that applies to program management. The context of most of the research discussed in this whitepaper are large-scale engineering programs, particularly in the ...

  1. Shale Oil Production Performance from a Stimulated Reservoir Volume

    E-Print Network [OSTI]

    Chaudhary, Anish Singh

    2011-10-21T23:59:59.000Z

    .1 Unconventional resources ................................................................................. 1 1.2 Oil shale and shale oil ....................................................................................... 6 1.3 Production from unconventional..., heavy oil, shale gas and shale oil. On the other hand, conventional reservoirs can be produced at economic flow rates and produce economic volumes of oil and gas without large stimulation treatments or any special recovery process. Conventional...

  2. Oil shale retort apparatus

    DOE Patents [OSTI]

    Reeves, Adam A. (Grand Junction, CO); Mast, Earl L. (Norman, OK); Greaves, Melvin J. (Littleton, CO)

    1990-01-01T23:59:59.000Z

    A retorting apparatus including a vertical kiln and a plurality of tubes for delivering rock to the top of the kiln and removal of processed rock from the bottom of the kiln so that the rock descends through the kiln as a moving bed. Distributors are provided for delivering gas to the kiln to effect heating of the rock and to disturb the rock particles during their descent. The distributors are constructed and disposed to deliver gas uniformly to the kiln and to withstand and overcome adverse conditions resulting from heat and from the descending rock. The rock delivery tubes are geometrically sized, spaced and positioned so as to deliver the shale uniformly into the kiln and form symmetrically disposed generally vertical paths, or "rock chimneys", through the descending shale which offer least resistance to upward flow of gas. When retorting oil shale, a delineated collection chamber near the top of the kiln collects gas and entrained oil mist rising through the kiln.

  3. Proposed natural gas protection program for Naval Oil Shale Reserves Nos. 1 and 3, Garfield County, Colorado

    SciTech Connect (OSTI)

    Not Available

    1991-08-01T23:59:59.000Z

    As a result of US Department of Energy (DOE) monitoring activities, it was determined in 1983 that the potential existed for natural gas resources underlying the Naval Oil Shales Reserves Nos. 1 and 3 (NOSrs-1 3) to be drained by privately-owned gas wells that were being drilled along the Reserves borders. In 1985, DOE initiated a limited number of projects to protect the Government's interest in the gas resources by drilling its own offset production'' wells just inside the boundaries, and by formally sharing in the production, revenues and costs of private wells that are drilled near the boundaries ( communitize'' the privately-drilled wells). The scope of these protection efforts must be expanded. DOE is therefore proposing a Natural Gas Protection Program for NOSRs-1 3 which would be implemented over a five-year period that would encompass a total of 200 wells (including the wells drilled and/or communitized since 1985). Of these, 111 would be offset wells drilled by DOE on Government land inside the NOSRs' boundaries and would be owned either entirely by the Government or communitized with adjacent private land owners or lessees. The remainder would be wells drilled by private operators in an area one half-mile wide extending around the NOSRs boundaries and communitized with the Government. 23 refs., 2 figs., 6 tabs.

  4. GEOLOGIC ASSESSMENT OF DRILLING, COMPLETION, AND STIMULATION METHODS IN SELECTED GAS SHALE PLAYS WORLDWIDE

    E-Print Network [OSTI]

    Patel, Harsh Jay

    2014-04-11T23:59:59.000Z

    The United States regularly imports majority of the transportation oil, and several TCF of natural gas annually. Nevertheless, there is very large resource of natural gas in unconventional reservoirs, with over 2,200 TCF of natural gas in just...

  5. The Phoenix series large scale LNG pool fire experiments.

    SciTech Connect (OSTI)

    Simpson, Richard B.; Jensen, Richard Pearson; Demosthenous, Byron; Luketa, Anay Josephine; Ricks, Allen Joseph; Hightower, Marion Michael; Blanchat, Thomas K.; Helmick, Paul H.; Tieszen, Sheldon Robert; Deola, Regina Anne; Mercier, Jeffrey Alan; Suo-Anttila, Jill Marie; Miller, Timothy J.

    2010-12-01T23:59:59.000Z

    The increasing demand for natural gas could increase the number and frequency of Liquefied Natural Gas (LNG) tanker deliveries to ports across the United States. Because of the increasing number of shipments and the number of possible new facilities, concerns about the potential safety of the public and property from an accidental, and even more importantly intentional spills, have increased. While improvements have been made over the past decade in assessing hazards from LNG spills, the existing experimental data is much smaller in size and scale than many postulated large accidental and intentional spills. Since the physics and hazards from a fire change with fire size, there are concerns about the adequacy of current hazard prediction techniques for large LNG spills and fires. To address these concerns, Congress funded the Department of Energy (DOE) in 2008 to conduct a series of laboratory and large-scale LNG pool fire experiments at Sandia National Laboratories (Sandia) in Albuquerque, New Mexico. This report presents the test data and results of both sets of fire experiments. A series of five reduced-scale (gas burner) tests (yielding 27 sets of data) were conducted in 2007 and 2008 at Sandia's Thermal Test Complex (TTC) to assess flame height to fire diameter ratios as a function of nondimensional heat release rates for extrapolation to large-scale LNG fires. The large-scale LNG pool fire experiments were conducted in a 120 m diameter pond specially designed and constructed in Sandia's Area III large-scale test complex. Two fire tests of LNG spills of 21 and 81 m in diameter were conducted in 2009 to improve the understanding of flame height, smoke production, and burn rate and therefore the physics and hazards of large LNG spills and fires.

  6. Potential for producing oil and gas from the Woodford Shale (Devonian-Mississippian) in the southern mid-continent, USA

    SciTech Connect (OSTI)

    Comer, J.B. (Indiana Geological Survey, Bloomington, IN (United States))

    1992-04-01T23:59:59.000Z

    The Woodford Shale is a prolific oil source rock throughout the southern mid-continent of the United States. Extrapolation of thickness and organic geochemical data based on the analysis of 614 samples from the region indicate that on the order of 100 {times} 10{sup 9} bbl of oil (300 {times} 10{sup 12} ft{sup 3} of natural gas equivalent) reside in the Woodford in Oklahoma and northwestern Arkansas. The Woodford in west Texas and southeastern New Mexico contains on the order of 80 {times} 10{sup 9} bbl of oil (240 {times} 10{sup 12} ft{sup 3} of natural gas equivalent). Tapping this resource is most feasible in areas where the Woodford subcrop contains competent lithofacies (e.g., chert, sandstone, siltstone, dolostone) and is highly fractured. Horizontal drilling may provide the optimum exploitation technique. Areas with the greatest potential and the most prospective lithologies include (1) the Nemaha uplift (chert, sandstone, dolostone), (2) Marietta-Ardmore basin (chert), (3) southern flank of the Anadarko basin along the Wichita Mountain uplift (chert), (4) frontal zone of the Ouachita tectonic belt in Oklahoma (chert), and (5) the Central Basin platform in west Texas and New Mexico (chert and siltstone). In virtually all of these areas, the Woodford is in the oil or gas window. Thus, fracture porosity would be continuously fed by hydrocarbons generated in the enclosing source rocks. Reservoir systems such as these typically have produced at low to moderate flow rates for many decades.

  7. Large Scale Periodicity in Redshift Distribution

    E-Print Network [OSTI]

    K. Bajan; M. Biernacka; P. Flin; W. Godlowski; V. Pervushin; A. Zorin

    2004-08-30T23:59:59.000Z

    We review the previous studies of galaxies and quasar redshifts discretisation. We present also the investigations of the large scale periodicity, detected by pencil--beam observations, which revealed 128 (1/h) Mpc period, afterwards confirmed with supercluster studies. We present the theoretical possibility of obtaining such a periodicity using a toy-model. We solved the Kepler problem, i.e. the equation of motion of a particle with null energy moving in the uniform, expanding Universe, decribed by FLRW metrics. It is possible to obtain theoretically the separation between large scale structures similar to the observed one.

  8. Strategic Planning, Design and Development of the Shale Gas Supply Chain Network

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    and fluids from the pure gas (methane) to produce what is known as "pipeline quality" dry natural gas.[2 in wells, providing raw materials for oil refineries or petrochemical plants, and as sources of energy.[3

  9. Potential Climatic Impacts and Reliability of Very Large-Scale Wind Farms

    E-Print Network [OSTI]

    Wang, Chien

    Meeting future world energy needs while addressing climate change requires large-scale deployment of low or zero greenhouse gas (GHG) emission technologies such as wind energy. The widespread availability of wind power has ...

  10. Secretary of Energy Advisory Board Subcommittee (SEAB) on Shale...

    Energy Savers [EERE]

    (SEAB) on Shale Gas Production Posts Draft Report Secretary of Energy Advisory Board Subcommittee (SEAB) on Shale Gas Production Posts Draft Report November 10, 2011 - 1:12pm...

  11. Can We Accurately Model Fluid Flow in Shale?

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

    2013 00:00 Over 20 trillion cubic meters of natural gas are trapped in shale, but many shale oil and gas producers still use models of underground fluid flow that date back to...

  12. Large-Scale Manifold Learning Ameet Talwalkar

    E-Print Network [OSTI]

    California at Irvine, University of

    Large-Scale Manifold Learning Ameet Talwalkar Courant Institute New York, NY ameet on spectral decom- position, we first analyze two approximate spectral decom- position techniques for large-dimensional embeddings for two large face datasets: CMU-PIE (35 thousand faces) and a web dataset (18 million faces). Our

  13. Network Coding for Large Scale Content Distribution

    E-Print Network [OSTI]

    Keinan, Alon

    Network Coding for Large Scale Content Distribution IEEE Infocom 2005 Christos Gkantsidis College propose a new scheme for content distribution of large files that is based on network coding. With network coding, each node of the distribution network is able to generate and transmit encoded blocks

  14. Computational Diagnostics based on Large Scale Gene

    E-Print Network [OSTI]

    Spang, Rainer

    Computational Diagnostics based on Large Scale Gene Expression Profiles using MCMC Rainer Spang = Data Loadings Singular values Expression levels of super genes, orthogonal matrix #12;)( genessuperall- #12;Given the Few Profiles With Known Diagnosis: · The uncertainty on the right model is high

  15. Potential for producing oil and gas from Woodford Shale (Devonian-Mississippian) in the southern Mid-Continent, USA

    SciTech Connect (OSTI)

    Comer, J.B. (Indiana Geological Survey, Bloomington (United States))

    1991-03-01T23:59:59.000Z

    Woodford Shale is a prolific oil source rock throughout the southern Mid-Continent of the US. Extrapolation of thickness and organic geochemical data based on the analysis of 614 samples from the region indicate that on the order of 100 {times} 10{sup 9} bbl of oil (300 {times} 10{sup 12} ft {sup 3} of natural gas equivalent). Tapping this resource is most feasible in areas where the Woodford subcrop contains competent lithofacies (e.g., chert, sandstone, siltstone, dolostone) and is high fractured. Horizontal drilling may provide the optimum exploitation technique. Areas with the greatest potential and the most prospective lithologies include (1) the Nemaha uplift (chert, sandstone, dolostone), (2) Marietta-Ardmore basin (chert), (3) southern flank of the Anadarko basin along the Wichita Mountain uplift (chert), (4) frontal zone of the Ouachita tectonic belt in Oklahoma (chert), and (5) the Central Basin platform in west Texas and New Mexico (chert and siltstone). In virtually all of these areas the Woodford is in the oil or gas window. Thus, fracture porosity would be continuously fed by hydrocarbons generated in the enclosing source rocks. Reservoir systems such as these have typically produced at low to moderate flow rates for many decades.

  16. SPENT SHALE AS A CONTROL TECHNOLOGY FOR OIL SHALE RETORT WATER. ANNUAL REPORT FOR PERIOD OCTOBER 1, 1978 - SEPTEMBER 30, 1979.

    E-Print Network [OSTI]

    Fox, J.P.

    2013-01-01T23:59:59.000Z

    of Control Technology for Shale Oil Wastewaters,~~ inpyrolysized to produce shale oil, gas, a solid referred towaters are co-produced with shale oil and separated from it

  17. Location and Geology Fig 1. The Macasty black shale

    E-Print Network [OSTI]

    , Quebec, is organic-rich black shale and hosting oil and gas. It is equivalent to the Ithaca shaleLocation and Geology Fig 1. The Macasty black shale in the Anticosti Island in the Gulf of St. d13C for calcite disseminated in the black shale range from 2.6o to 2.8 / The values are lower

  18. Materials Science and Materials Chemistry for Large Scale Electrochemi...

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

    Science and Materials Chemistry for Large Scale Electrochemical Energy Storage: From Transportation to Electrical Grid Materials Science and Materials Chemistry for Large Scale...

  19. Sandia Energy - Computational Fluid Dynamics & Large-Scale Uncertainty...

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

    & Large-Scale Uncertainty Quantification for Wind Energy Home Highlights - HPC Computational Fluid Dynamics & Large-Scale Uncertainty Quantification for Wind Energy Previous Next...

  20. Overcoming the Barrier to Achieving Large-Scale Production -...

    Office of Environmental Management (EM)

    Overcoming the Barrier to Achieving Large-Scale Production - A Case Study Overcoming the Barrier to Achieving Large-Scale Production - A Case Study This presentation summarizes the...

  1. Overcoming the Barrier to Achieving Large-Scale Production -...

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

    Semprius Confidential 1 Overcoming the Barriers to Achieving Large-Scale Production - A Case Study From concept to large-scale production, one manufacturer tells the story and...

  2. Future States: The Convergence of Smart Grid, Renewables, Shale Gas, and Electric Vehicles

    ScienceCinema (OSTI)

    Dick Cirillo; Guenter Conzelmann

    2013-06-07T23:59:59.000Z

    Dick Cirillo and Guenter Conzelmann present on research involving renewable energy sources, the use of natural gas, electric vehicles, and the SMART grid.

  3. Future States: The Convergence of Smart Grid, Renewables, Shale Gas, and Electric Vehicles

    SciTech Connect (OSTI)

    Dick Cirillo; Guenter Conzelmann

    2013-03-20T23:59:59.000Z

    Dick Cirillo and Guenter Conzelmann present on research involving renewable energy sources, the use of natural gas, electric vehicles, and the SMART grid.

  4. Impact of Sorption Isotherms on the Simulation of CO2-Enhanced Gas Recovery and Storage Process in Marcellus Shale

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    initiatives to develop carbon management technologies, including geologic sequestration of CO2. At present of how much carbon dioxide or methane can be stored in shale at a given pressure. In this paper, a shale to identify the impact of both methane and carbon dioxide sorption isotherms on cumulative methane production

  5. Effects of reservoir geometry and permeability anisotropy on ultimate gas recovery in Devonian Shale reservoirs

    E-Print Network [OSTI]

    Starnes, Lee McKennon

    1989-01-01T23:59:59.000Z

    , k, =0. 1 md 68 69 70 71 72 73 75 62 Comparison of cumulative gas production as a function of time with different drainage patterns, 160-acre well spacing, k, =0. 1 md, k?=9k L, =50 feet, fracture parallel to k ?. . . . . . . . . . 77 LIST... OF FIGURES (continued) Figure Page 63 65 66 67 Comparison of improvement in gas recovery with different drainage patterns, 160-acre well spacing, k, =0. 1 md, k?=9k L~ =50 feet, fracture parallel to ~ . 78 Comparison of cumulative gas production...

  6. Proof-of-Concept Oil Shale Facility Environmental Analysis Program

    SciTech Connect (OSTI)

    Not Available

    1990-11-01T23:59:59.000Z

    The objectives of the Project are to demonstrate: (1) the Modified In- Situ (MIS) shale oil extraction process and (2) the application of CFBC technology using oil shale, coal and waste gas streams as fuels. The project will focus on evaluating and improving the efficiency and environmental performance of these technologies. The project will be modest by commercial standards. A 17-retort MIS system is planned in which two retorts will be processed simultaneously. Production of 1206-barrels per calendar day of raw shale oil and 46-megawatts of electricity is anticipated. West Virginia University coordinated an Environmental Analysis Program for the Project. Experts from around the country were retained by WVU to prepare individual sections of the report. These experts were exposed to all of OOSI`s archives and toured Tract C-b and Logan Wash. Their findings were incorporated into this report. In summary, no environmental obstacles were revealed that would preclude proceeding with the Project. One of the most important objectives of the Project was to verify the environmental acceptability of the technologies being employed. Consequently, special attention will be given to monitoring environmental factors and providing state of the art mitigation measures. Extensive environmental and socioeconomic background information has been compiled for the Tract over the last 15 years and permits were obtained for the large scale operations contemplated in the late 1970`s and early 1980`s. Those permits have been reviewed and are being modified so that all required permits can be obtained in a timely manner.

  7. Proof-of-Concept Oil Shale Facility Environmental Analysis Program

    SciTech Connect (OSTI)

    Not Available

    1990-11-01T23:59:59.000Z

    The objectives of the Project are to demonstrate: (1) the Modified In- Situ (MIS) shale oil extraction process and (2) the application of CFBC technology using oil shale, coal and waste gas streams as fuels. The project will focus on evaluating and improving the efficiency and environmental performance of these technologies. The project will be modest by commercial standards. A 17-retort MIS system is planned in which two retorts will be processed simultaneously. Production of 1206-barrels per calendar day of raw shale oil and 46-megawatts of electricity is anticipated. West Virginia University coordinated an Environmental Analysis Program for the Project. Experts from around the country were retained by WVU to prepare individual sections of the report. These experts were exposed to all of OOSI's archives and toured Tract C-b and Logan Wash. Their findings were incorporated into this report. In summary, no environmental obstacles were revealed that would preclude proceeding with the Project. One of the most important objectives of the Project was to verify the environmental acceptability of the technologies being employed. Consequently, special attention will be given to monitoring environmental factors and providing state of the art mitigation measures. Extensive environmental and socioeconomic background information has been compiled for the Tract over the last 15 years and permits were obtained for the large scale operations contemplated in the late 1970's and early 1980's. Those permits have been reviewed and are being modified so that all required permits can be obtained in a timely manner.

  8. Eastern Gas Shales Program. Completion and stimulation of five New York State Energy Research and Development Authority Wells Allegany and Cattaraugus Counties, New York

    SciTech Connect (OSTI)

    Rdissi, A.

    1981-11-01T23:59:59.000Z

    In order to evaluate the potential of the Devonian Shales as a source of natural gas, DOE/METC in Morgantown, West Virginia, has undertaken the Eastern Gas Shale Program (EGSP); not only to characterize and identify the resource, but also to enhance and improve the productivity of wells completed in the shale. One of the methods used to achieve improved productivity is hydraulic fracturing and, more specifically, foam fracturing. The efforts by DOE/METC included completion and stimulation of five New York State Energy Research and Development Authority (NYSERDA) wells; located in western Allegany County and southwestern Cattaraugus County, New York. The five wells were drilled on high shcool and college properties during the months of June and July 1981. DOE/METC's contribution to the program funded the stimulation and completion of the wells. This work was done under the engineering and field supervision of Gruy Federal, Inc. as contractor to DOE. The completion work took place in the months of July and August 1981. This consisted of running a cement bond log in each well. All logs showed good bonding. This was followed by perforating the Marcellus Shale through the 4-1/2-inch casing. During the next phase, the formation was broken down with 1500 gallons of regular HF acid and, then, foam fractured using 50,000 gallons of foam consisting of water and nitrogen; the fractures were propped with 60,000 pounds of sand. After the cleanout operations, open flow potentials and rock pressures were measured in each well. None of the wells had a gas show before fracturing but, after fracturing, open flow ranged from a low of 19 Mcf/D to a high of 73 Mcf/D. 1 reference, 6 figures, 1 table.

  9. Modeling, History Matching, Forecasting and Analysis of Shale Reservoirs Performance Using Artificial Intelligence

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    matching, forecasting and analyzing oil and gas production in shale reservoirs. In this new approach and analysis of oil and gas production from shale formations. Examples of three case studies in Lower Huron and New Albany shale formations (gas producing) and Bakken Shale (oil producing) is presented

  10. ,"U.S. Shale Gas Proved Reserves, Reserves Changes, and Production"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National and Regional Data; Row: NAICS Codes; Column: Energy SourcesRefinery, Bulk Terminal, and Natural Gas Plant Stocks of SelectedRefinerGas

  11. Federal Offshore--Gulf of Mexico Natural Gas Gross Withdrawals from Shale

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,12803 Table A1.Gas Proved Reserves, WetGas (Million Cubic

  12. 1 National Roadmap Committee for Large-Scale Research Facilities the netherlands' roadmap for large-scale research facilities

    E-Print Network [OSTI]

    Horn, David

    #12;1 National Roadmap Committee for Large-Scale Research Facilities the netherlands' roadmap for large-scale research facilities #12;2 National Roadmap Committee for Large-Scale Research Facilities1 by Roselinde Supheert) #12;3 National Roadmap Committee for Large-Scale Research Facilities The Netherlands

  13. Large-Scale PV Integration Study

    SciTech Connect (OSTI)

    Lu, Shuai; Etingov, Pavel V.; Diao, Ruisheng; Ma, Jian; Samaan, Nader A.; Makarov, Yuri V.; Guo, Xinxin; Hafen, Ryan P.; Jin, Chunlian; Kirkham, Harold; Shlatz, Eugene; Frantzis, Lisa; McClive, Timothy; Karlson, Gregory; Acharya, Dhruv; Ellis, Abraham; Stein, Joshua; Hansen, Clifford; Chadliev, Vladimir; Smart, Michael; Salgo, Richard; Sorensen, Rahn; Allen, Barbara; Idelchik, Boris

    2011-07-29T23:59:59.000Z

    This research effort evaluates the impact of large-scale photovoltaic (PV) and distributed generation (DG) output on NV Energy’s electric grid system in southern Nevada. It analyzes the ability of NV Energy’s generation to accommodate increasing amounts of utility-scale PV and DG, and the resulting cost of integrating variable renewable resources. The study was jointly funded by the United States Department of Energy and NV Energy, and conducted by a project team comprised of industry experts and research scientists from Navigant Consulting Inc., Sandia National Laboratories, Pacific Northwest National Laboratory and NV Energy.

  14. Autonomie Large Scale Deployment | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromof Energy Automation Worldof EnergyTAGS,Large Scale

  15. Effects of scale-up on oil and gas yields in a solid-recycle bed oil shale retorting process

    SciTech Connect (OSTI)

    Carter, S.D.; Taulbee, D.N.; Vego, A. [Univ. of Kentucky, Lexington, KY (United States)

    1994-12-31T23:59:59.000Z

    Fluidized bed pyrolysis of oil shale in a non-hydrogen atmosphere has been shown to significantly increase oil yield in laboratory-scale reactors compared to the Fischer assay by many workers. The enhancement in oil yield by this relatively simple and efficient thermal technique has led to the development of several oil shale retorting processes based on fluidized bed and related technologies over the past fifteen years. Since 1986, the Center for Applied Energy Research (CAER) has been developing one such process, KENTORT II, which is mainly tailored for the Devonian oil shales that occur in the eastern U.S. The process contains three main fluidized bed zones to pyrolyze, gasify, and combust the oil shale. A fourth fluidized bed zone serves to cool the spent shale prior to exiting the system. The autothermal process utilizes processed shale recirculation to transfer heat from the combustion to the gasification and pyrolysis zones. The CAER is currently testing the KENTORT II process in a 22.7-kg/hr process-development unit (PDU).

  16. akinbo shale eastern: Topics by E-print Network

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

    and Utilization Websites Summary: in excess of 50 MMTYr. Life of current Shale Oil & Gas explora-on trend Demand and Supply Factors -Gas and Oil Commodity Pricing...

  17. antrim shales: Topics by E-print Network

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

    and Utilization Websites Summary: in excess of 50 MMTYr. Life of current Shale Oil & Gas explora-on trend Demand and Supply Factors -Gas and Oil Commodity Pricing...

  18. Large-scale Intelligent Transporation Systems simulation

    SciTech Connect (OSTI)

    Ewing, T.; Canfield, T.; Hannebutte, U.; Levine, D.; Tentner, A.

    1995-06-01T23:59:59.000Z

    A prototype computer system has been developed which defines a high-level architecture for a large-scale, comprehensive, scalable simulation of an Intelligent Transportation System (ITS) capable of running on massively parallel computers and distributed (networked) computer systems. The prototype includes the modelling of instrumented ``smart`` vehicles with in-vehicle navigation units capable of optimal route planning and Traffic Management Centers (TMC). The TMC has probe vehicle tracking capabilities (display position and attributes of instrumented vehicles), and can provide 2-way interaction with traffic to provide advisories and link times. Both the in-vehicle navigation module and the TMC feature detailed graphical user interfaces to support human-factors studies. The prototype has been developed on a distributed system of networked UNIX computers but is designed to run on ANL`s IBM SP-X parallel computer system for large scale problems. A novel feature of our design is that vehicles will be represented by autonomus computer processes, each with a behavior model which performs independent route selection and reacts to external traffic events much like real vehicles. With this approach, one will be able to take advantage of emerging massively parallel processor (MPP) systems.

  19. Creation and Impairment of Hydraulic Fracture Conductivity in Shale Formations 

    E-Print Network [OSTI]

    Zhang, Junjing

    2014-07-10T23:59:59.000Z

    Multi-stage hydraulic fracturing is the key to the success of many shale gas and shale oil reservoirs. The main objectives of hydraulic fracturing in shale are to create artificial fracture networks that are conductive for oil and gas flow...

  20. Creation and Impairment of Hydraulic Fracture Conductivity in Shale Formations

    E-Print Network [OSTI]

    Zhang, Junjing

    2014-07-10T23:59:59.000Z

    Multi-stage hydraulic fracturing is the key to the success of many shale gas and shale oil reservoirs. The main objectives of hydraulic fracturing in shale are to create artificial fracture networks that are conductive for oil and gas flow...

  1. A nuclear wind/solar oil-shale system for variable electricity and liquid fuels production

    SciTech Connect (OSTI)

    Forsberg, C. [Massachusetts Inst. of Technology, 77 Massachusetts Ave., Cambridge, MA 012139 (United States)

    2012-07-01T23:59:59.000Z

    The recoverable reserves of oil shale in the United States exceed the total quantity of oil produced to date worldwide. Oil shale contains no oil, rather it contains kerogen which when heated decomposes into oil, gases, and a carbon char. The energy required to heat the kerogen-containing rock to produce the oil is about a quarter of the energy value of the recovered products. If fossil fuels are burned to supply this energy, the greenhouse gas releases are large relative to producing gasoline and diesel from crude oil. The oil shale can be heated underground with steam from nuclear reactors leaving the carbon char underground - a form of carbon sequestration. Because the thermal conductivity of the oil shale is low, the heating process takes months to years. This process characteristic in a system where the reactor dominates the capital costs creates the option to operate the nuclear reactor at base load while providing variable electricity to meet peak electricity demand and heat for the shale oil at times of low electricity demand. This, in turn, may enable the large scale use of renewables such as wind and solar for electricity production because the base-load nuclear plants can provide lower-cost variable backup electricity. Nuclear shale oil may reduce the greenhouse gas releases from using gasoline and diesel in half relative to gasoline and diesel produced from conventional oil. The variable electricity replaces electricity that would have been produced by fossil plants. The carbon credits from replacing fossil fuels for variable electricity production, if assigned to shale oil production, results in a carbon footprint from burning gasoline or diesel from shale oil that may half that of conventional crude oil. The U.S. imports about 10 million barrels of oil per day at a cost of a billion dollars per day. It would require about 200 GW of high-temperature nuclear heat to recover this quantity of shale oil - about two-thirds the thermal output of existing nuclear reactors in the United States. With the added variable electricity production to enable renewables, additional nuclear capacity would be required. (authors)

  2. Shale Oil Production Performance from a Stimulated Reservoir Volume 

    E-Print Network [OSTI]

    Chaudhary, Anish Singh

    2011-10-21T23:59:59.000Z

    The horizontal well with multiple transverse fractures has proven to be an effective strategy for shale gas reservoir exploitation. Some operators are successfully producing shale oil using the same strategy. Due to its higher viscosity and eventual...

  3. Comprehensive Lifecycle Planning and Management System For Addressing Water Issues Associated With Shale Gas Development In New York, Pennsylvania, And West Virginia

    SciTech Connect (OSTI)

    J. Daniel Arthur

    2012-03-31T23:59:59.000Z

    The objective of this project is to develop a modeling system to allow operators and regulators to plan all aspects of water management activities associated with shale gas development in the target project area of New York, Pennsylvania, and West Virginia (â??target areaâ?), including water supply, transport, storage, use, recycling, and disposal and which can be used for planning, managing, forecasting, permit tracking, and compliance monitoring. The proposed project is a breakthrough approach to represent the entire shale gas water lifecycle in one comprehensive system with the capability to analyze impacts and options for operational efficiency and regulatory tracking and compliance, and to plan for future water use and disposition. It will address all of the major water-related issues of concern associated with shale gas development in the target area, including water withdrawal, transport, storage, use, treatment, recycling, and disposal. It will analyze the costs, water use, and wastes associated with the available options, and incorporate constraints presented by permit requirements, agreements, local and state regulations, equipment and material availability, etc. By using the system to examine the water lifecycle from withdrawals through disposal, users will be able to perform scenario analysis to answer "what if" questions for various situations. The system will include regulatory requirements of the appropriate state and regional agencies and facilitate reporting and permit applications and tracking. These features will allow operators to plan for more cost effective resource production. Regulators will be able to analyze impacts of development over an entire area. Regulators can then make informed decisions about the protections and practices that should be required as development proceeds. This modeling system will have myriad benefits for industry, government, and the public. For industry, it will allow planning all water management operations for a project or an area as one entity to optimize water use and minimize costs subject to regulatory and other constraints. It will facilitate analysis of options and tradeoffs, and will also simplify permitting and reporting to regulatory agencies. The system will help regulators study cumulative impacts of development, conserve water resources, and manage disposal options across a region. It will also allow them to track permits and monitor compliance. The public will benefit from water conservation, improved environmental performance as better system wide decisions are made, and greater supply of natural gas, with attendant lower prices, as costs are reduced and development is assisted through better planning and scheduling. Altogether, better economics and fewer barriers will facilitate recovery of the more than 300 trillion cubic feet of estimated recoverable natural gas resource in the Marcellus Shale in a manner that protects the environment.

  4. Challenges in large scale distributed computing: bioinformatics.

    SciTech Connect (OSTI)

    Disz, T.; Kubal, M.; Olson, R.; Overbeek, R.; Stevens, R.; Mathematics and Computer Science; Univ. of Chicago; The Fellowship for the Interpretation of Genomes (FIG)

    2005-01-01T23:59:59.000Z

    The amount of genomic data available for study is increasing at a rate similar to that of Moore's law. This deluge of data is challenging bioinformaticians to develop newer, faster and better algorithms for analysis and examination of this data. The growing availability of large scale computing grids coupled with high-performance networking is challenging computer scientists to develop better, faster methods of exploiting parallelism in these biological computations and deploying them across computing grids. In this paper, we describe two computations that are required to be run frequently and which require large amounts of computing resource to complete in a reasonable time. The data for these computations are very large and the sequential computational time can exceed thousands of hours. We show the importance and relevance of these computations, the nature of the data and parallelism and we show how we are meeting the challenge of efficiently distributing and managing these computations in the SEED project.

  5. Large-scale simulations of reionization

    SciTech Connect (OSTI)

    Kohler, Katharina; /JILA, Boulder /Fermilab; Gnedin, Nickolay Y.; /Fermilab; Hamilton, Andrew J.S.; /JILA, Boulder

    2005-11-01T23:59:59.000Z

    We use cosmological simulations to explore the large-scale effects of reionization. Since reionization is a process that involves a large dynamic range--from galaxies to rare bright quasars--we need to be able to cover a significant volume of the universe in our simulation without losing the important small scale effects from galaxies. Here we have taken an approach that uses clumping factors derived from small scale simulations to approximate the radiative transfer on the sub-cell scales. Using this technique, we can cover a simulation size up to 1280h{sup -1} Mpc with 10h{sup -1} Mpc cells. This allows us to construct synthetic spectra of quasars similar to observed spectra of SDSS quasars at high redshifts and compare them to the observational data. These spectra can then be analyzed for HII region sizes, the presence of the Gunn-Peterson trough, and the Lyman-{alpha} forest.

  6. Large-Scale Renewable Energy Projects (Larger than 10 MWs) |...

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

    Large-Scale Renewable Energy Projects (Larger than 10 MWs) Large-Scale Renewable Energy Projects (Larger than 10 MWs) Renewable energy projects larger than 10 megawatts (MW) are...

  7. BLM and Forest Service Consider Large-Scale Geothermal Leasing...

    Energy Savers [EERE]

    and Forest Service Consider Large-Scale Geothermal Leasing BLM and Forest Service Consider Large-Scale Geothermal Leasing June 18, 2008 - 4:29pm Addthis In an effort to encourage...

  8. FEMP Helps Federal Facilities Develop Large-Scale Renewable Energy...

    Office of Environmental Management (EM)

    FEMP Helps Federal Facilities Develop Large-Scale Renewable Energy Projects FEMP Helps Federal Facilities Develop Large-Scale Renewable Energy Projects August 21, 2013 - 12:00am...

  9. Microbial Community Changes in Hydraulic Fracturing Fluids and Produced Water from Shale Gas Extraction

    SciTech Connect (OSTI)

    Mohan, Arvind Murali; Hartsock, Angela; Bibby, Kyle J.; Hammack, Richard W.; Vidic, Radisav D.; Gregory, Kelvin B.

    2013-11-19T23:59:59.000Z

    Microbial communities associated with produced water from hydraulic fracturing are not well understood, and their deleterious activity can lead to significant increases in production costs and adverse environmental impacts. In this study, we compared the microbial ecology in prefracturing fluids (fracturing source water and fracturing fluid) and produced water at multiple time points from a natural gas well in southwestern Pennsylvania using 16S rRNA gene-based clone libraries, pyrosequencing, and quantitative PCR. The majority of the bacterial community in prefracturing fluids constituted aerobic species affiliated with the class Alphaproteobacteria. However, their relative abundance decreased in produced water with an increase in halotolerant, anaerobic/facultative anaerobic species affiliated with the classes Clostridia, Bacilli, Gammaproteobacteria, Epsilonproteobacteria, Bacteroidia, and Fusobacteria. Produced water collected at the last time point (day 187) consisted almost entirely of sequences similar to Clostridia and showed a decrease in bacterial abundance by 3 orders of magnitude compared to the prefracturing fluids and produced water samplesfrom earlier time points. Geochemical analysis showed that produced water contained higher concentrations of salts and total radioactivity compared to prefracturing fluids. This study provides evidence of long-term subsurface selection of the microbial community introduced through hydraulic fracturing, which may include significant implications for disinfection as well as reuse of produced water in future fracturing operations.

  10. Production cost and air emissions impacts of coal cycling in power systems with large-scale wind penetration

    E-Print Network [OSTI]

    Jaramillo, Paulina

    on dispatchable generating capacity, such as coal and natural gas power plants, which can be cycled in responseProduction cost and air emissions impacts of coal cycling in power systems with large-scale wind emissions impacts of coal cycling in power systems with large-scale wind penetration David Luke Oates

  11. The Public Health Implications of Marcellus Shale Activities

    E-Print Network [OSTI]

    Jiang, Huiqiang

    INCIDENT #12;#12;#12;Implications of the Gulf Oil Spill to Marcellus Shale Activities - EnvironmentalThe Public Health Implications of Marcellus Shale Activities Bernard D. Goldstein, MD Department using Data.FracTracker.org. #12;Drilling Rig in Rural Upshur County, WV Source: WVSORO, Modern Shale Gas

  12. Production of hydrogen from oil shale

    SciTech Connect (OSTI)

    Schora, F. C.; Feldkirchner, H. L.; Janka, J. C.

    1985-12-24T23:59:59.000Z

    A process for production of hydrogen from oil shale fines by direct introduction of the oil shale fines into a fluidized bed at temperatures about 1200/sup 0/ to about 2000/sup 0/ F. to obtain rapid heating of the oil shale. The bed is fluidized by upward passage of steam and oxygen, the steam introduced in the weight ratio of about 0.1 to about 10 on the basis of the organic carbon content of the oil shale and the oxygen introduced in less than the stoichiometric quantity for complete combustion of the organic carbonaceous kerogen content of the oil shale. Embodiments are disclosed for heat recovery from the spent shale and heat recovery from the spent shale and product gas wherein the complete process and heat recovery is carried out in a single reaction vessel. The process of this invention provides high conversion of organic carbon component of oil shale and high production of hydrogen from shale fines which when used in combination with a conventional oil shale hydroconversion process results in increased overall process efficiency of greater than 15 percent.

  13. Analysis of the structural parameters that influence gas production from the Devonian shale. Annual progress report, 1979-1980. Volume II. Data repository and reports published during fiscal year 1979-1980: regional structure, surface structure, surface fractures, hydrology

    SciTech Connect (OSTI)

    Negus-De Wys, J.; Dixon, J. M.; Evans, M. A.; Lee, K. D.; Ruotsala, J. E.; Wilson, T. H.; Williams, R. T.

    1980-10-01T23:59:59.000Z

    This volume comprises appendices giving regional structure data, surface structure data, surface fracture data, and hydrology data. The fracture data covers oriented Devonian shale cores from West Virginia, Ohio, Virginia, Pennsylvania, and Kentucky. The subsurface structure of the Eastern Kentucky gas field is also covered. (DLC)

  14. Strategies to Finance Large-Scale Deployment of Renewable Energy...

    Open Energy Info (EERE)

    Strategies to Finance Large-Scale Deployment of Renewable Energy Projects: An Economic Development and Infrastructure Approach Jump to: navigation, search Tool Summary LAUNCH TOOL...

  15. Efficient random coordinate descent algorithms for large-scale ...

    E-Print Network [OSTI]

    2013-05-04T23:59:59.000Z

    (will be inserted by the editor). Efficient random coordinate descent algorithms for large-scale structured nonconvex optimization. Andrei Patrascu · Ion Necoara.

  16. Optimization Online - Large-Scale Linear Programming Techniques ...

    E-Print Network [OSTI]

    Michael Wagner

    2002-02-12T23:59:59.000Z

    Feb 12, 2002 ... Large-Scale Linear Programming Techniques for the Design of Protein Folding Potentials. Michael Wagner (mwagner ***at*** odu.edu)

  17. ORNL, CINCINNATI partner to develop commercial large-scale additive...

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

    Laboratory 865-574-7308 ORNL, CINCINNATI partner to develop commercial large-scale additive manufacturing system (From left) David Danielson, the Energy Department's...

  18. A Distribution Oblivious Scalable Approach for Large-Scale Scientific...

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

    Distribution Oblivious Scalable Approach for Large-Scale Scientific Data Processing June 12, 2013 Problem Statement: Runtimes of scientific data processing (SDP) methods vary...

  19. Advancing Cellulosic Ethanol for Large Scale Sustainable Transportation

    E-Print Network [OSTI]

    Wyman, C

    2007-01-01T23:59:59.000Z

    Advancing Cellulosic Ethanol for Large Scale SustainableHydrogen Batteries Nuclear By Lee Lynd, Dartmouth Ethanol •Ethanol, ethyl alcohol, fermentation ethanol, or just “

  20. Large Scale GSHP as Alternative Energy for American Farmers Geothermal...

    Open Energy Info (EERE)

    Scale GSHP as Alternative Energy for American Farmers Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Large Scale GSHP as Alternative...

  1. ORNL demonstrates first large-scale graphene fabrication | ornl...

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

    Ron Walli Communications 865.576.0226 ORNL demonstrates first large-scale graphene composite fabrication ORNL's ultrastrong graphene features layers of graphene and polymers and is...

  2. Optimization Online - A fictitious play approach to large-scale ...

    E-Print Network [OSTI]

    Theodore Lambert

    2004-08-01T23:59:59.000Z

    Aug 1, 2004 ... A fictitious play approach to large-scale optimization. Theodore Lambert (tlambert ***at*** tmcc.edu) Marina A. Epelman (mepelman ***at*** ...

  3. Effects of Volcanism, Crustal Thickness, and Large Scale Faulting...

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

    of Volcanism, Crustal Thickness, and Large Scale Faulting on the Development and Evolution of Geothermal Systems: Collaborative Project in Chile Effects of Volcanism, Crustal...

  4. Solving large scale polynomial convex problems on \\ell_1/nuclear ...

    E-Print Network [OSTI]

    Aharon Ben-Tal

    2012-10-24T23:59:59.000Z

    Oct 24, 2012 ... Solving large scale polynomial convex problems on \\ell_1/nuclear norm balls by randomized first-order algorithms. Aharon Ben-Tal (abental ...

  5. Closing the Gap: Using the Clean Air Act to Control Lifecycle Greenhouse Gas Emissions from Energy Facilities

    E-Print Network [OSTI]

    Hagan, Colin R.

    2012-01-01T23:59:59.000Z

    estimates shown here for Marcellus gas are similar toGreenhouse Gas Emissions of Marcellus Shale Gas, ENvr_.research- ers acknowledge, "Marcellus shale gas production

  6. 61. Nelson, D. C. Oil Shale: New Technologies Defining New Opportunities. Presented at the Platts Rockies Gas & Oil Conference, Denver, CO, April

    E-Print Network [OSTI]

    Kulp, Mark

    61. Nelson, D. C. Oil Shale: New Technologies Defining New Opportunities. Presented at the Platts I, II Modeling of the In-Situ Production of Oil from .',1 l ',".1" Oil Shale ilil 'I' 'I~ :' l of conventional oil reserves amidst increasing liquid fuel demand in the world have renewed interest in oil shale

  7. Potential Economic Impacts of Marcellus Shale in Pennsylvania: Reflections on the Perryman Group Analysis from Texas

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Potential Economic Impacts of Marcellus Shale in Pennsylvania: Reflections on the Perryman Group The exploration and development of the Marcellus Shale natural gas play has significant potential to affect in the Barnett Shale region of north Texas. The Barnett Shale play is very similar in geology to the Marcellus

  8. An experimental investigation of sediment drag forces on offshore pipelines in large scale drag tank

    E-Print Network [OSTI]

    Yin, Stanley Fuming

    1984-01-01T23:59:59.000Z

    for the degree of MASTER OF SCIENCE August 1984 Major Subject: Civil Engineering AN EXPERIMENTAL INVESTIGATION OF SEDIMENT DRAG FORCES ON OFFSHORE PIPELINES IN A LARGE SCALE DRAG TANK A Thesis by STANLEY FUMING YIN Approved as to style and content by... An ever increasing demand for petroleum products and energy has led to accelerated exploration and development of oil and gas deposits. Pipelines serve as an effective, efficient and reliable means of trans- porting the oil and gas from offshore...

  9. Multiscale strength homogenization : application to shale nanoindentation

    E-Print Network [OSTI]

    Gathier, Benjamin

    2008-01-01T23:59:59.000Z

    Shales are one of the most encountered materials in sedimentary basins. Because of their highly heterogeneous nature, their strength prediction for oil and gas exploitation engineering has long time been an enigma. In this ...

  10. Climate impacts of a large-scale biofuels expansion*

    E-Print Network [OSTI]

    Climate impacts of a large-scale biofuels expansion* Willow Hallgren, C. Adam Schlosser, Erwan impacts of a large-scale biofuels expansion Willow Hallgren,1 C. Adam Schlosser,1 Erwan Monier,1 David March 2013. [1] A global biofuels program will potentially lead to intense pressures on land supply

  11. Measuring Similarity in Large-scale Folksonomies Giovanni Quattrone1

    E-Print Network [OSTI]

    Ferrara, Emilio

    Measuring Similarity in Large-scale Folksonomies Giovanni Quattrone1 , Emilio Ferrara2 , Pasquale by power law distributions of tags, over which commonly used similarity metrics, in- cluding the Jaccard to capture similarity in large-scale folksonomies, that is based on a mutual reinforcement principle: that is

  12. Attack Containment Framework for Large-Scale Critical Infrastructures

    E-Print Network [OSTI]

    Nahrstedt, Klara

    Attack Containment Framework for Large-Scale Critical Infrastructures Hoang Nguyen Department-- We present an attack containment framework against value-changing attacks in large-scale critical structure, called attack container, which captures the trust behavior of a group of nodes and assists

  13. POWER SYSTEMS STABILITY WITH LARGE-SCALE WIND POWER PENETRATION

    E-Print Network [OSTI]

    Bak-Jensen, Birgitte

    of offshore wind farms, wind power fluctuations may introduce several challenges to reliable power system behaviour due to natural wind fluctuations. The rapid power fluctuations from the large scale wind farms Generation Control (AGC) system which includes large- scale wind farms for long-term stability simulation

  14. Large-Scale Eucalyptus Energy Farms and Power Cogeneration1

    E-Print Network [OSTI]

    Standiford, Richard B.

    Large-Scale Eucalyptus Energy Farms and Power Cogeneration1 Robert C. Noronla2 The initiation of a large-scale cogeneration project, especially one that combines construction of the power generation supplemental fuel source must be sought if the cogeneration facility will consume more fuel than

  15. Scalable Cache Memory Design for Large-Scale SMT Architectures

    E-Print Network [OSTI]

    Mudawa, Muhamed F.

    Scalable Cache Memory Design for Large-Scale SMT Architectures Muhamed F. Mudawar Computer Science in existing SMT and superscalar processors is optimized for latency, but not for bandwidth. The size of the L1 is not suitable for future large-scale SMT processors, which will demand high bandwidth instruction and data

  16. Deformation of shale: mechanical properties and indicators of mechanisms

    E-Print Network [OSTI]

    Ibanez, William Dayan

    1993-01-01T23:59:59.000Z

    Basins, shales of Devonian age are commonly considered reservoir rocks I' or natural gas [Woodward, 1958; Lockett, 1968; Long, 1979; Gonzales and Johnson, 1985], Economic gas production from the Devonian shales of these basins is associated...] and slates [Donath, 1961], may be expected to be weak. Finally, Microstructural studies of deformed shales have been restricted by optical resolution, and the role of crystal plasticity in clays may have been overlooked. Results for the brittle and semi...

  17. Stabilization of Large Scale Structure by Adhesive Gravitational Clustering

    E-Print Network [OSTI]

    Thomas Buchert

    1999-08-13T23:59:59.000Z

    The interplay between gravitational and dispersive forces in a multi-streamed medium leads to an effect which is exposed in the present note as the genuine driving force of stabilization of large-scale structure. The conception of `adhesive gravitational clustering' is advanced to interlock the fairly well-understood epoch of formation of large-scale structure and the onset of virialization into objects that are dynamically in equilibrium with their large-scale structure environment. The classical `adhesion model' is opposed to a class of more general models traced from the physical origin of adhesion in kinetic theory.

  18. LLNL oil shale project review

    SciTech Connect (OSTI)

    Cena, R.J. (ed.)

    1990-04-01T23:59:59.000Z

    Livermore's oil shale project is funded by two budget authorities, two thirds from base technology development and one third from environmental science. Our base technology development combines fundamental chemistry research with operation of pilot retorts and mathematical modeling. We've studied mechanisms for oil coking and cracking and have developed a detailed model of this chemistry. We combine the detailed chemistry and physics into oil shale process models (OSP) to study scale-up of generic second generation Hot-Recycled-Solid (HRS) retorting systems and compare with results from our 4 tonne-per-day continuous-loop HRS pilot retorting facility. Our environmental science program focuses on identification of gas, solid and liquid effluents from oil shale processes and development of abatement strategies where necessary. We've developed on-line instruments to quantitatively measure trace sulfur and nitrogen compounds released during shale pyrolysis and combustion. We've studied shale mineralogy, inorganic and organic reactions which generate and consume environmentally sensitive species. Figures, references, and tables are included with each discussion.

  19. Implementation of FracTracker.org: A GeoWeb platform to manage and communicate shale gas information

    E-Print Network [OSTI]

    Sibille, Etienne

    in the public realm. Regulation was based on more traditional approaches to gas and oil drilling, and it did sources, such as the Pittsburgh Post-Gazette's Pipeline project, to inform their readership of natural gas

  20. Data mining techniques for large-scale gene expression analysis

    E-Print Network [OSTI]

    Palmer, Nathan Patrick

    2011-01-01T23:59:59.000Z

    Modern computational biology is awash in large-scale data mining problems. Several high-throughput technologies have been developed that enable us, with relative ease and little expense, to evaluate the coordinated expression ...

  1. Exploration of large scale manufacturing of polydimethylsiloxane (PDMS) microfluidic devices

    E-Print Network [OSTI]

    Hum, Philip W. (Philip Wing-Jung)

    2006-01-01T23:59:59.000Z

    Discussion of the current manufacturing process of polydimethylsiloxane (PDMS) parts and the emergence of PDMS use in biomedical microfluidic devices addresses the need to develop large scale manufacturing processes for ...

  2. How Three Retail Buyers Source Large-Scale Solar Electricity

    Office of Energy Efficiency and Renewable Energy (EERE)

    Large-scale, non-utility solar power purchase agreements (PPAs) are still a rarity despite the growing popularity of PPAs across the country. In this webinar, participants will learn more about how...

  3. Parallel Stochastic Gradient Algorithms for Large-Scale Matrix ...

    E-Print Network [OSTI]

    2013-03-21T23:59:59.000Z

    parallel implementation that admits a speed-up nearly proportional to the ... On large-scale matrix completion tasks, Jellyfish is orders of magnitude more ...... get a consistent build of NNLS with mex optimizations at the time of this submission.

  4. Interference management techniques in large-scale wireless networks 

    E-Print Network [OSTI]

    Luo, Yi

    2015-06-29T23:59:59.000Z

    In this thesis, advanced interference management techniques are designed and evaluated for large-scale wireless networks with realistic assumptions, such as signal propagation loss, random node distribution and ...

  5. Channel Meander Migration in Large-Scale Physical Model Study 

    E-Print Network [OSTI]

    Yeh, Po Hung

    2010-10-12T23:59:59.000Z

    A set of large-scale laboratory experiments were conducted to study channel meander migration. Factors affecting the migration of banklines, including the ratio of curvature to channel width, bend angle, and the Froude ...

  6. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    , Biochemical, Environmental, Petroleum Engineering and Nantoechnology. CHEMICAL&MATERIALSSCIENCE CHE OVERVIEW of Science 131 units · Chemical Engineering (Petroleum) Bachelor of Science 136 units · Chemical Engineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical

  7. Infrastructure for large-scale tests in marine autonomy

    E-Print Network [OSTI]

    Hummel, Robert A. (Robert Andrew)

    2012-01-01T23:59:59.000Z

    This thesis focuses on the development of infrastructure for research with large-scale autonomous marine vehicle fleets and the design of sampling trajectories for compressive sensing (CS). The newly developed infrastructure ...

  8. Platforms and real options in large-scale engineering systems

    E-Print Network [OSTI]

    Kalligeros, Konstantinos C., 1976-

    2006-01-01T23:59:59.000Z

    This thesis introduces a framework and two methodologies that enable engineering management teams to assess the value of real options in programs of large-scale, partially standardized systems implemented a few times over ...

  9. Large-scale magnetic fields in the inflationary universe

    E-Print Network [OSTI]

    Kazuharu Bamba; Misao Sasaki

    2006-11-22T23:59:59.000Z

    The generation of large-scale magnetic fields is studied in inflationary cosmology. We consider the violation of the conformal invariance of the Maxwell field by dilatonic as well as non-minimal gravitational couplings. We derive a general formula for the spectrum of large-scale magnetic fields for a general form of the coupling term and the formula for the spectral index. The result tells us clearly the (necessary) condition for the generation of magnetic fields with sufficiently large amplitude.

  10. Streamflow forecasting for large-scale hydrologic systems

    E-Print Network [OSTI]

    Awwad, Haitham Munir

    1991-01-01T23:59:59.000Z

    STREAMFLOW FORECASTING FOR LARGE-SCALE HYDROLOGIC SYSTEMS A Thesis by HAITHAM MUNIR AWWAD Submitted to the Office of Graduate Studies of Texas AkM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May... 1991 Major Subject: Civil Engineering STREAMFLOW FORECASTING FOR LARGE-SCALE HYDROLOGIC SYSTEMS A Thesis by HAITHAM MUNIR AWWAD Approved as to style and content by: uan B. Valdes (Chair of Committee) alph A. Wurbs (Member) Marshall J. Mc...

  11. Modeling and History Matching Hydrocarbon Production from Marcellus Shale using Data Mining and Pattern Recognition Technologies

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    pressure and rate as well as proppant concentration. The study focuses on part of Marcellus shale including for individual wells and for the entire field. Introduction Shale gas reservoirs pose a tremendous potential resource for future development, and study of these systems is proceeding apace. Shale gas reservoirs

  12. Department of Mechanical Engineering Fall 2010 Geothermal Pressure Reduction Marcellus Shale Production

    E-Print Network [OSTI]

    Demirel, Melik C.

    Shale Production Overview (problem and challenges) During the preliminary production stage, Marcellus Shale natural gas wells have a wellhead pressure that exceeds the material limits of typical above understanding of Marcellus Shale natural gas wells and drilling was gathered on-site. Evaluation of (5

  13. Shale and the Environment Critical Need for a Government-University-

    E-Print Network [OSTI]

    McGaughey, Alan

    Shale and the Environment Critical Need for a Government-University- Industry Research Initiative and policies 2 Introduction #12;Scott Institute PolicymakerGuide · Primer on shale gas · Carnegie Mellon University research on shale gas and its potential impact on · water resources, · air quality · greenhouse

  14. CONTAMINATION OF GROUNDWATER BY ORGANIC POLLUTANTS LEACHED FROM IN-SITU SPENT SHALE

    E-Print Network [OSTI]

    Amy, Gary L.

    2013-01-01T23:59:59.000Z

    Bureau of Mines (USBM) gas combustion retorting process; (2)th or without recycle gas), combustion conditions exist durTvoe Combustion Inert gas Combustion Inert gas Air gas shale

  15. OIL SHALE RESEARCH. CHAPTER FROM THE ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1979

    E-Print Network [OSTI]

    ,

    2012-01-01T23:59:59.000Z

    Holes from the Naval Oil Shale Reserve No. 1 R. D. Giauque,all of the known oil and gas reserves in the United States.cores from the Naval Oil Shale Reserve No. 1 were sectioned

  16. Co-conversion of Biomass, Shale-natural gas, and process-derived CO2 into Fuels and Chemicals

    Broader source: Energy.gov [DOE]

    Breakout Session 1: New Developments and Hot Topics Session 1-D: Natural Gas & Biomass to Liquids Suresh Babu, Senior Program Manager, Biomass Program Development, Brookhaven National Laboratory

  17. TOP-DOWN MODELING; PRACTICAL, FAST TRACK, RESERVOIR SIMULATION & MODELING FOR SHALE FORMATIONS Shahab D. Mohaghegh1 & Grant Bromhal2

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    development in the oil and gas industry and is being used on some shale formations. BAKKEN SHALE MuchTOP-DOWN MODELING; PRACTICAL, FAST TRACK, RESERVOIR SIMULATION & MODELING FOR SHALE FORMATIONS based on measure data, called Top-Down, Intelligent Reservoir Modeling for the shale formations

  18. CORROSION OF METALS IN OIL SHALE ENVIRONMENTS

    E-Print Network [OSTI]

    Bellman Jr., R.

    2012-01-01T23:59:59.000Z

    temperature, type of shale and oil content of shale isof Sulfur in Colorado Oil Shale Oil yield of shale, gal/toncontent of the shale, and shale oil content of the rock can

  19. Strategic Significance of Americas Oil Shale Resource

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

    heavy oil and tar sand, coal liquids, gas-to-liquids (GTL), hydrogen, gas hydrates, and renewable energy resources, as well as oil shale, which is the focus of this re- port....

  20. Large-scale simulations of complex physical systems

    SciTech Connect (OSTI)

    Belic, A. [Scientific Computing Laboratory, Institute of Physics, Pregrevica 118, 11080 Belgrade (Serbia and Montenegro)

    2007-04-23T23:59:59.000Z

    Scientific computing has become a tool as vital as experimentation and theory for dealing with scientific challenges of the twenty-first century. Large scale simulations and modelling serve as heuristic tools in a broad problem-solving process. High-performance computing facilities make possible the first step in this process - a view of new and previously inaccessible domains in science and the building up of intuition regarding the new phenomenology. The final goal of this process is to translate this newly found intuition into better algorithms and new analytical results.In this presentation we give an outline of the research themes pursued at the Scientific Computing Laboratory of the Institute of Physics in Belgrade regarding large-scale simulations of complex classical and quantum physical systems, and present recent results obtained in the large-scale simulations of granular materials and path integrals.

  1. Toward Improved Support for Loosely Coupled Large Scale Simulation Workflows

    SciTech Connect (OSTI)

    Boehm, Swen [ORNL] [ORNL; Elwasif, Wael R [ORNL] [ORNL; Naughton, III, Thomas J [ORNL; Vallee, Geoffroy R [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    High-performance computing (HPC) workloads are increasingly leveraging loosely coupled large scale simula- tions. Unfortunately, most large-scale HPC platforms, including Cray/ALPS environments, are designed for the execution of long-running jobs based on coarse-grained launch capabilities (e.g., one MPI rank per core on all allocated compute nodes). This assumption limits capability-class workload campaigns that require large numbers of discrete or loosely coupled simulations, and where time-to-solution is an untenable pacing issue. This paper describes the challenges related to the support of fine-grained launch capabilities that are necessary for the execution of loosely coupled large scale simulations on Cray/ALPS platforms. More precisely, we present the details of an enhanced runtime system to support this use case, and report on initial results from early testing on systems at Oak Ridge National Laboratory.

  2. Oil shale ash-layer thickness and char combustion kinetics

    SciTech Connect (OSTI)

    Aldis, D.F.; Singleton, M.F.; Watkins, B.E.; Thorsness, C.B.; Cena, R.J.

    1992-04-15T23:59:59.000Z

    A Hot-Recycled-Solids (HRS) oil shale retort is being studied at Lawrence Livermore National Laboratory. In the HRS process, raw shale is heated by mixing it with burnt retorted shale. Retorted shale is oil shale which has been heated in an oxygen deficient atmosphere to pyrolyze organic carbon, as kerogen into oil, gas, and a nonvolatile carbon rich residue, char. In the HRS retort process, the char in the spent shale is subsequently exposed to an oxygen environment. Some of the char, starting on the outer surface of the shale particle, is burned, liberating heat. In the HRS retort, the endothermic pyrolysis step is supported by heat from the exothermic char combustion step. The rate of char combustion is controlled by three resistances; the resistance of oxygen mass transfer through the gas film surrounding the solid particle, resistance to mass transfer through a ash layer which forms on the outside of the solid particles as the char is oxidized and the resistance due to the intrinsic chemical reaction rate of char and oxygen. In order to estimate the rate of combustion of the char in a typical oil shale particle, each of these resistances must be accurately estimated. We begin by modeling the influence of ash layer thickness on the over all combustion rate of oil shale char. We then present our experimental measurements of the ash layer thickness of oil shale which has been processed in the HRS retort.

  3. Industrial hygiene aspects of underground oil shale mining

    SciTech Connect (OSTI)

    Hargis, K.M.; Jackson, J.O.

    1982-01-01T23:59:59.000Z

    Health hazards associated with underground oil shale mining are summarized in this report. Commercial oil shale mining will be conducted on a very large scale. Conventional mining techniques of drilling, blasting, mucking, loading, scaling, and roof bolting will be employed. Room-and-pillar mining will be utilized in most mines, but mining in support of MIS retorting may also be conducted. Potential health hazards to miners may include exposure to oil shale dusts, diesel exhaust, blasting products, gases released from the oil shale or mine water, noise and vibration, and poor environmental conditions. Mining in support of MIS retorting may in addition include potential exposure to oil shale retort offgases and retort liquid products. Based upon the very limited industrial hygiene surveys and sampling in experimental oil shale mines, it does not appear that oil shale mining will result in special or unique health hazards. Further animal toxicity testing data could result in reassessment if findings are unusual. Sufficient information is available to indicate that controls for dust will be required in most mining activities, ventilation will be necessary to carry away gases and vapors from blasting and diesel equipment, and a combination of engineering controls and personal protection will likely be required for control of noise. Recommendations for future research are included.

  4. SIMULATING LARGE-SCALE STRUCTURE FORMATION FOR BSI POWER SPECTRA

    E-Print Network [OSTI]

    V. Mueller

    1995-05-30T23:59:59.000Z

    A double inflationary model provides perturbation spectra with enhanced power at large scales (Broken Scale Invariant perturbations -- BSI), leading to a promising scenario for the formation of cosmic structures. We describe a series of high-resolution PM simulations with a model for the thermodynamic evolution of baryons in which we are capable of identifying 'galaxy' halos with a reasonable mass spectrum and following the genesis of large and super-large scale structures. The power spectra and correlation functions of 'galaxies' are compared with reconstructed power spectra of the CfA catalogue and the correlation functions of the Las Campanas Deep Redshift Survey.

  5. Oil and Gas CDT Coupled flow of water and gas

    E-Print Network [OSTI]

    Henderson, Gideon

    Oil and Gas CDT Coupled flow of water and gas during hydraulic fracture in shale The University of Oxford http://www.earth.ox.ac.uk/people/profiles/academic/joec Key Words Shale gas, hydraulic fracture, groundwater contamination, transport in porous media Overview Recovery of natural gas from mudstone (shale

  6. Marcellus Shale Advisory Commission Report Summary

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    of Oil and Gas Act in nearly three decades. Culmination of four months of work by commission. o 20 with the products they need. Train Pennsylvanians for Natural Gas Jobs. Work with industry to develop Marcellus Shale Advisory Commission Report Summary A Comprehensive, Strategic Plan. 96

  7. Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions

    SciTech Connect (OSTI)

    Reeves, T.L.; Turner, J.P.; Hasfurther, V.R.; Skinner, Q.D.

    1992-06-01T23:59:59.000Z

    The scope of this program is to study interacting hydrologic, geotechnical, and chemical factors affecting the behavior and disposal of combusted processed oil shale. The research combines bench-scale testing with large scale research sufficient to describe commercial scale embankment behavior. The large scale approach was accomplished by establishing five lysimeters, each 7.3 {times} 3.0 {times} 3.0 m deep, filled with processed oil shale that has been retorted and combusted by the Lurgi-Ruhrgas (Lurgi) process. Approximately 400 tons of Lurgi processed oil shale waste was provided by RBOSC to carry out this study. Research objectives were designed to evaluate hydrologic, geotechnical, and chemical properties and conditions which would affect the design and performance of large-scale embankments. The objectives of this research are: assess the unsaturated movement and redistribution of water and the development of potential saturated zones and drainage in disposed processed oil shale under natural and simulated climatic conditions; assess the unsaturated movement of solubles and major chemical constituents in disposed processed oil shale under natural and simulated climatic conditions; assess the physical and constitutive properties of the processed oil shale and determine potential changes in these properties caused by disposal and weathering by natural and simulated climatic conditions; assess the use of previously developed computer model(s) to describe the infiltration, unsaturated movement, redistribution, and drainage of water in disposed processed oil shale; evaluate the stability of field scale processed oil shale solid waste embankments using computer models.

  8. Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions

    SciTech Connect (OSTI)

    Reeves, T.L.; Turner, J.P.; Hasfurther, V.R.; Skinner, Q.D.

    1992-06-01T23:59:59.000Z

    The scope of this program is to study interacting hydrologic, geotechnical, and chemical factors affecting the behavior and disposal of combusted processed oil shale. The research combines bench-scale testing with large scale research sufficient to describe commercial scale embankment behavior. The large scale approach was accomplished by establishing five lysimeters, each 7.3 [times] 3.0 [times] 3.0 m deep, filled with processed oil shale that has been retorted and combusted by the Lurgi-Ruhrgas (Lurgi) process. Approximately 400 tons of Lurgi processed oil shale waste was provided by RBOSC to carry out this study. Research objectives were designed to evaluate hydrologic, geotechnical, and chemical properties and conditions which would affect the design and performance of large-scale embankments. The objectives of this research are: assess the unsaturated movement and redistribution of water and the development of potential saturated zones and drainage in disposed processed oil shale under natural and simulated climatic conditions; assess the unsaturated movement of solubles and major chemical constituents in disposed processed oil shale under natural and simulated climatic conditions; assess the physical and constitutive properties of the processed oil shale and determine potential changes in these properties caused by disposal and weathering by natural and simulated climatic conditions; assess the use of previously developed computer model(s) to describe the infiltration, unsaturated movement, redistribution, and drainage of water in disposed processed oil shale; evaluate the stability of field scale processed oil shale solid waste embankments using computer models.

  9. Large Scale Simulation of Tor: Modelling a Global Passive Adversary

    E-Print Network [OSTI]

    Blott, Stephen

    . Implementing global passive adversary attacks on currently deployed low latency anonymous networks designs have been developed which attempt to apply mixes to low latency traffic. The most widelyLarge Scale Simulation of Tor: Modelling a Global Passive Adversary Gavin O' Gorman and Stephen

  10. Large Scale Energy Storage: From Nanomaterials to Large Systems

    E-Print Network [OSTI]

    Fisher, Frank

    Large Scale Energy Storage: From Nanomaterials to Large Systems Wednesday October 26, 2011, Babbio energy storage devices. Specifically, this talk discusses 1) the challenges for grid scale of emergent technologies with ultralow costs on new energy storage materials and mechanisms. Dr. Jun Liu

  11. No Large Scale Curvature Perturbations during Waterfall of Hybrid Inflation

    E-Print Network [OSTI]

    Ali Akbar Abolhasani; Hassan Firouzjahi

    2011-01-18T23:59:59.000Z

    In this paper the possibility of generating large scale curvature perturbations induced from the entropic perturbations during the waterfall phase transition of standard hybrid inflation model is studied. We show that whether or not appreciable amounts of large scale curvature perturbations are produced during the waterfall phase transition depend crucially on the competition between the classical and the quantum mechanical back-reactions to terminate inflation. If one considers only the classical evolution of the system we show that the highly blue-tilted entropy perturbations induce highly blue-tilted large scale curvature perturbations during the waterfall phase transition which dominate over the original adiabatic curvature perturbations. However, we show that the quantum back-reactions of the waterfall field inhomogeneities produced during the phase transition dominate completely over the classical back-reactions. The cumulative quantum back-reactions of very small scales tachyonic modes terminate inflation very efficiently and shut off the curvature perturbations evolution during the waterfall phase transition. This indicates that the standard hybrid inflation model is safe under large scale curvature perturbations during the waterfall phase transition.

  12. Materialized community ground models for large-scale earthquake simulation

    E-Print Network [OSTI]

    Shewchuk, Jonathan

    Materialized community ground models for large-scale earthquake simulation Steven W. Schlosser to ground motion sim- ulations, in which ground model datasets are fully materi- alized into octress stored as a service techniques in which scientific computation and storage services become more tightly intertwined. 1

  13. ORNL 2013-G00021/tcc Large Scale Graphene Production

    E-Print Network [OSTI]

    ORNL 2013-G00021/tcc 02.2013 Large Scale Graphene Production UT-B ID 201102606 Technology Summary Graphene is an emerging one-atom-thick carbon material which has the potential for a wide range research, graphene has quickly attained the status of a wonder nanomaterial and continued to draw

  14. Seamlessly Integrating Software & Hardware Modelling for Large-Scale Systems

    E-Print Network [OSTI]

    Zhao, Yuxiao

    Engineering, with the math- ematical modelling approach, Modelica, to address the software/hardware integration problem. The environment and hardware components are modelled in Modelica and integrated software-hardware codesign, large-scale sys- tems, Behavior Engineering, Modelica. 1. Introduction

  15. Large Scale Spatial Augmented Reality for Design and Prototyping

    E-Print Network [OSTI]

    Thomas, Bruce

    Chapter 10 Large Scale Spatial Augmented Reality for Design and Prototyping Michael R. Marner, Ross Augmented Reality allows the appearance of physical objects to be transformed using projected light commercial and personal use. This chapter explores how large Spatial Augmented Reality systems can be applied

  16. Determining Identifiable Parameterizations for Large-scale Physical Models in

    E-Print Network [OSTI]

    Van den Hof, Paul

    /Novem (Dutch Government). ISAPP (Integrated Systems Approach to Petroleum Production) is a joint project as applied in the field of petroleum reservoir engineering. Starting from a large-scale, physics-based model models in petroleum reservoir engineering. Petroleum reservoir engineering is concerned with maximizing

  17. Modeling emergent large-scale structures of barchan dune fields

    E-Print Network [OSTI]

    Claudin, Philippe

    that cannot be readily explained by examining the dynamics at the scale of single dunes, or by appealingModeling emergent large-scale structures of barchan dune fields S. Worman , A.B. Murray , R for a range of field-scale phenomena including isolated patches of dunes and heterogeneous arrangements

  18. Large-Scale Linear Programming Techniques for the Design of ...

    E-Print Network [OSTI]

    2002-02-05T23:59:59.000Z

    Feb 5, 2002 ... Page 1 ... We present large-scale optimization techniques to model the energy function that underlies the folding process of ..... which we will refer to from now on, we get a system. AT y ? b, ... Although we don't want to rule out that a so- ..... What we believe is interesting in this context is that the results from.

  19. Spatial Energy Balancing in Large-scale Wireless Multihop Networks

    E-Print Network [OSTI]

    de Veciana, Gustavo

    Spatial Energy Balancing in Large-scale Wireless Multihop Networks Seung Jun Baek and Gustavo de is on optimizing trade-offs between the energy cost of spreading traffic and the improved spatial balance of energy. We propose a parameterized family of energy balancing strategies for grids and approximate

  20. Materials Availability Expands the Opportunity for Large-Scale

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Materials Availability Expands the Opportunity for Large-Scale Photovoltaics Deployment C Y R U S W of Chemistry, University of California, Berkeley, California 94720, Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Department of Materials Science and Engineering

  1. On solving large scale polynomial convex problems by randomized ...

    E-Print Network [OSTI]

    2013-03-24T23:59:59.000Z

    Mar 24, 2013 ... We show that for large-scale problems with favourable geometry, this ...... justable “aggressive” stepsize policy [8]; up to this policy, this is nothing but SMP with Pz .... building this representation is O(1)km2 a.o. We build this ...

  2. Computational study of large-scale p-Median problems

    E-Print Network [OSTI]

    techniques to the simplex method for the solution of large-scale instances. ... instances up to 5535 nodes and 666639 arcs, arising from an industrial ..... For each node v ? TF ? AF we build a “layered” graph rooted in v, where layer.

  3. Lessons from Large-Scale Renewable Energy Integration Studies: Preprint

    SciTech Connect (OSTI)

    Bird, L.; Milligan, M.

    2012-06-01T23:59:59.000Z

    In general, large-scale integration studies in Europe and the United States find that high penetrations of renewable generation are technically feasible with operational changes and increased access to transmission. This paper describes other key findings such as the need for fast markets, large balancing areas, system flexibility, and the use of advanced forecasting.

  4. Load Distribution in Large Scale Network Monitoring Infrastructures

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Load Distribution in Large Scale Network Monitoring Infrastructures Josep Sanju`as-Cuxart, Pere to build a scalable, distributed passive network mon- itoring system that can run several arbitrary the principal research challenges behind building a distributed network monitoring system to support

  5. Large-scale tidal fields on primordial density perturbations ?

    E-Print Network [OSTI]

    Alejandro Gonzalez

    1997-02-17T23:59:59.000Z

    We calculate the strength of the tidal field produced by the large-scale density field acting on primordial density perturbations in power law models. By analysing changes in the orientation of the deformation tensor, resulted from smoothing the density field on different mass scales, we show that the large-scale tidal field can strongly affect the morphology and orientation of density peaks. The measure of the strength of the tidal field is performed as a function of the distance to the peak and of the spectral index. We detected evidence that two populations of perturbations seems to coexist; one, with a misalignment between the main axes of their inertia and deformation tensors. This would lead to the angular momentum acquisition and morphological changes. For the second population, the perturbations are found nearly aligned in the direction of the tidal field, which would imprint them low angular momentum and which would allow an alignment of structures as those reported between clusters of galaxies in filaments, and between galaxies in clusters. Evidence is presented that the correlation between the orientation of perturbations and the large-scale density field could be a common property of Gaussian density fields with spectral indexes $n < 0$. We argue that alignment of structures can be used to probe the flatness of the spectrum on large scales but it cannot determine the exact value of the spectral index.

  6. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    Emphasis in Nanotechnology · ChemicalEngineering Emphasis in Petroleum Engineering · ChemicalEngineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, materials, energy

  7. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    · ChemicalEngineering (Nanotechnology) Bachelor of Science 131 units · ChemicalEngineering(Petroleum38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, pharmaceutical

  8. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    in Nanotechnology · ChemicalEngineering Emphasis in Petroleum Engineering · ChemicalEngineering Emphasis in Polymers38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, pharmaceutical

  9. IFIP/IEEE International Conference on Very Large Scale Integration

    E-Print Network [OSTI]

    Pierre, Laurence

    -Signal IC Design · 3-D Integration · Physical Design · SoC Design for Variability, Reliability, Fault22nd IFIP/IEEE International Conference on Very Large Scale Integration VLSI-SoC 2014 October 6-8, 2014 Playa del Carmen, Mexico Iberostar Tucán and Quetzal Hotel General Chairs: Arturo Sarmiento Reyes

  10. Developing A Grid Portal For Large-scale Reservoir Studies

    E-Print Network [OSTI]

    Allen, Gabrielle

    Developing A Grid Portal For Large-scale Reservoir Studies 1 Center for Computation & Technology 2 uncertainty. · Advantages of grid technology · Proposed Solution of the UCoMS Team · What is a Portal? · UCo of reservoir uncertainty... Petroleum drilling consist of many uncertainties. Main objective is to optimize

  11. Stretched Exponential Decline Model as a Probabilistic and Deterministic Tool for Production Forecasting and Reserve Estimation in Oil and Gas Shales

    E-Print Network [OSTI]

    Akbarnejad Nesheli, Babak

    2012-07-16T23:59:59.000Z

    stabilized production forecast than traditional DCA models and in this work it is shown that it produces unchanging EUR forecasts after only two-three years of production data are available in selected reservoirs, notably the Barnett Shale...

  12. H.R. 817: A Bill to authorize the Secretary of Energy to lease lands within the naval oil shale reserves to private entities for the development and production of oil and natural gas. Introduced in the House of Representatives, One Hundred Fourth Congress, First session

    SciTech Connect (OSTI)

    NONE

    1995-12-31T23:59:59.000Z

    This bill would give the Secretary of Energy authority to lease lands within the Naval oil shale reserves to private entities for the purpose of surveying for and developing oil and gas resources from the land (other than oil shale). It also allows the Bureau of Land Management to be used as a leasing agent, establishes rules on royalties, and the sharing of royalties with the state, and covers the transfer of existing equipment.

  13. Evaluation of Devonian shale potential in West Virginia

    SciTech Connect (OSTI)

    Not Available

    1981-01-01T23:59:59.000Z

    In West Virginia, all significant areas of current Devonian shale gas production are situated where the radioactive shale units are thicker than 200 feet. Most areas of current gas production exhibit a close correlation with the trend of the Rome trough structure, and nearly all lie within the optimum stress-ratio zone. In addition, most of the current gas-producing areas are located within the zone of optimum shale thermal maturity, and optimum shale thermal maturity nearly coincides with the optimum shale stress-ratio value (0.43) in western and southwestern West Virginia. Areas adjacent to existing gas fields, within northeastern Cabell County, northern Lincoln County, and central Wayne County, are excellent prospects for future production. Additional deeper drilling in existing gas fields within the main trend may tap potential new reservoirs in the Rhinestreet and Marcellus Shales. The area east of the Warfield anticline in central Boone, Logan, and eastern Mingo Counties also may be favorable for gas exploitation of the radioactive Huron Shale. Fractures associated with the flank of the anticline and possible reactivation of basement faults in this area should be sufficient to provide the means for production. Further drilling should also be conducted along extensions of the border fault zone of the Rome trough in the western portion of the state. However, the subsurface trend of the trough must be carefully delineated to successfully develop gas production from potential fractured reservoir systems.

  14. Parallel I/O Software Infrastructure for Large-Scale Systems

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

    Parallel IO Software Infrastructure for Large-Scale Systems Parallel IO Software Infrastructure for Large-Scale Systems | Tags: Math & Computer Science Choudhary.png An...

  15. SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale M. O. Eshkalak, SPE, S. D of production from shale gas reservoirs. In this study, synthetic geomechanical logs (Including following-driven models are developed that are capable of generating synthetic geomechanical logs from conventional logs

  16. Utilization of Estonian oil shale at power plants

    SciTech Connect (OSTI)

    Ots, A. [Tallin Technical Univ. (Estonia). Thermal Engineering Department

    1996-12-31T23:59:59.000Z

    Estonian oil shale belongs to the carbonate class and is characterized as a solid fuel with very high mineral matter content (60--70% in dry mass), moderate moisture content (9--12%) and low heating value (LHV 8--10 MJ/kg). Estonian oil shale deposits lie in layers interlacing mineral stratas. The main constituent in mineral stratas is limestone. Organic matter is joined with sandy-clay minerals in shale layers. Estonian oil shale at power plants with total capacity of 3060 MW{sub e} is utilized in pulverized form. Oil shale utilization as fuel, with high calcium oxide and alkali metal content, at power plants is connected with intensive fouling, high temperature corrosion and wear of steam boiler`s heat transfer surfaces. Utilization of Estonian oil shale is also associated with ash residue use in national economy and as absorbent for flue gas desulfurization system.

  17. Characteristics of the C Shale and D Shale reservoirs, Monterey Formation, Elk Hills Field, Kern County, California

    SciTech Connect (OSTI)

    Reid, S.A.; McIntyre, J.L. [Bechtel Petroleum Operations, Inc., Tupman, CA (United States); McJannet, G.S. [Dept. of Energy, Tupman, CA (United States)

    1996-12-31T23:59:59.000Z

    The upper Miocene C Shale and D Shale reservoirs of the Elk Hills Shale Member of the Monterey Formation have cumulative oil and gas production much higher than the originally estimated recovery. These San Joaquin basin reservoirs are the lowest of the Stevens producing zones at Elk Hills and currently produce from a 2800-acre area on the 31 S anticline. The C Shale contains lower slope and basin plain deposits of very fine grained, thinly bedded, graded turbidites, pelagic and hemipelagic claystone, and slump deposits. Although all units are oil-bearing, only the lower parts of the graded turbidity intervals have sufficient horizontal permeability to produce oil. The D Shale consists of chart, claystone, carbonates and slump deposits, also originating in a lower slope to basin plain setting. All D Shale rock types contain oil, but the upper chart interval is the most productive. The chart has high matrix porosity, and due to a complex horizontal and vertical microfracture system, produces at a highly effective rate. Core samples indicate more oil-in-place is present in the thin, graded C Shale beds and in the porous D Shale chart than is identifiable from conventional electric logs. High gas recovery rates are attributed mostly to this larger volume of associated oil. Gas also enters the reservoirs from the adjacent 26R reservoir through a leaky normal fault. Significant gas volumes also may desorb from immature organic material common in the rock matrix.

  18. Characteristics of the C Shale and D Shale reservoirs, Monterey Formation, Elk Hills Field, Kern County, California

    SciTech Connect (OSTI)

    Reid, S.A.; McIntyre, J.L. (Bechtel Petroleum Operations, Inc., Tupman, CA (United States)); McJannet, G.S. (Dept. of Energy, Tupman, CA (United States))

    1996-01-01T23:59:59.000Z

    The upper Miocene C Shale and D Shale reservoirs of the Elk Hills Shale Member of the Monterey Formation have cumulative oil and gas production much higher than the originally estimated recovery. These San Joaquin basin reservoirs are the lowest of the Stevens producing zones at Elk Hills and currently produce from a 2800-acre area on the 31 S anticline. The C Shale contains lower slope and basin plain deposits of very fine grained, thinly bedded, graded turbidites, pelagic and hemipelagic claystone, and slump deposits. Although all units are oil-bearing, only the lower parts of the graded turbidity intervals have sufficient horizontal permeability to produce oil. The D Shale consists of chart, claystone, carbonates and slump deposits, also originating in a lower slope to basin plain setting. All D Shale rock types contain oil, but the upper chart interval is the most productive. The chart has high matrix porosity, and due to a complex horizontal and vertical microfracture system, produces at a highly effective rate. Core samples indicate more oil-in-place is present in the thin, graded C Shale beds and in the porous D Shale chart than is identifiable from conventional electric logs. High gas recovery rates are attributed mostly to this larger volume of associated oil. Gas also enters the reservoirs from the adjacent 26R reservoir through a leaky normal fault. Significant gas volumes also may desorb from immature organic material common in the rock matrix.

  19. Alignments of Galaxy Group Shapes with Large Scale Structure

    E-Print Network [OSTI]

    Paz, Dante J; Merchán, Manuel; Padilla, Nelson

    2011-01-01T23:59:59.000Z

    In this paper we analyse the alignment of galaxy groups with the surrounding large scale structure traced by spectroscopic galaxies from the Sloan Digital Sky Survey Data Release 7. We characterise these alignments by means of an extension of the classical two-point cross-correlation function, developed by Paz et al. 2008 (arXiv:0804.4477, MNRAS 389 1127). We find a strong alignment signal between the projected major axis of group shapes and the surrounding galaxy distribution up to scales of 30 Mpc/h. This observed anisotropy signal becomes larger as the galaxy group mass increases, in excellent agreement with the corresponding predicted alignment obtained from mock catalogues and LCDM cosmological simulations. These measurements provide new direct evidence of the adequacy of the gravitational instability picture to describe the large-scale structure formation of our Universe.

  20. Diffuse Gamma-Ray Emission from Large Scale Structures

    E-Print Network [OSTI]

    Dobardzic, Aleksandra

    2012-01-01T23:59:59.000Z

    For more than a decade now the complete origin of the diffuse gamma-ray emission background (EGRB) has been unknown. Major components like unresolved star-forming galaxies (making 10GeV. Moreover, we show that, even though the gamma-ray emission arising from structure formation shocks at galaxy clusters is below previous estimates, these large scale shocks can still give an important, and even dominant at high energies, contribution to the EGRB. Future detections of cluster gamma-ray emission would make our upper limit of the extragalactic gamma-ray emission from structure-formation process, a firm prediction, and give us deeper insight in evolution of these large scale shock.

  1. Quantum noise in large-scale coherent nonlinear photonic circuits

    E-Print Network [OSTI]

    Charles Santori; Jason S. Pelc; Raymond G. Beausoleil; Nikolas Tezak; Ryan Hamerly; Hideo Mabuchi

    2014-05-27T23:59:59.000Z

    A semiclassical simulation approach is presented for studying quantum noise in large-scale photonic circuits incorporating an ideal Kerr nonlinearity. A circuit solver is used to generate matrices defining a set of stochastic differential equations, in which the resonator field variables represent random samplings of the Wigner quasi-probability distributions. Although the semiclassical approach involves making a large-photon-number approximation, tests on one- and two-resonator circuits indicate satisfactory agreement between the semiclassical and full-quantum simulation results in the parameter regime of interest. The semiclassical model is used to simulate random errors in a large-scale circuit that contains 88 resonators and hundreds of components in total, and functions as a 4-bit ripple counter. The error rate as a function of on-state photon number is examined, and it is observed that the quantum fluctuation amplitudes do not increase as signals propagate through the circuit, an important property for scalability.

  2. Prototype Vector Machine for Large Scale Semi-Supervised Learning

    SciTech Connect (OSTI)

    Zhang, Kai; Kwok, James T.; Parvin, Bahram

    2009-04-29T23:59:59.000Z

    Practicaldataminingrarelyfalls exactlyinto the supervisedlearning scenario. Rather, the growing amount of unlabeled data poses a big challenge to large-scale semi-supervised learning (SSL). We note that the computationalintensivenessofgraph-based SSLarises largely from the manifold or graph regularization, which in turn lead to large models that are dificult to handle. To alleviate this, we proposed the prototype vector machine (PVM), a highlyscalable,graph-based algorithm for large-scale SSL. Our key innovation is the use of"prototypes vectors" for effcient approximation on both the graph-based regularizer and model representation. The choice of prototypes are grounded upon two important criteria: they not only perform effective low-rank approximation of the kernel matrix, but also span a model suffering the minimum information loss compared with the complete model. We demonstrate encouraging performance and appealing scaling properties of the PVM on a number of machine learning benchmark data sets.

  3. Stochastic Ordering of Interferences in Large-scale Wireless Networks

    E-Print Network [OSTI]

    Lee, Junghoon

    2012-01-01T23:59:59.000Z

    Stochastic orders are binary relations defined on probability distributions which capture intuitive notions like being larger or being more variable. This paper introduces stochastic ordering of interference distributions in large-scale networks modeled as point process. Interference is the main performance-limiting factor in most wireless networks, thus it is important to understand its statistics. Since closed-form results for the distribution of interference for such networks are only available in limited cases, interference of networks are compared using stochastic orders, even when closed form expressions for interferences are not tractable. We show that the interference from a large-scale network depends on the fading distributions with respect to the stochastic Laplace transform order. The condition for path-loss models is also established to have stochastic ordering between interferences. The stochastic ordering of interferences between different networks are also shown. Monte-Carlo simulations are us...

  4. Performance Health Monitoring of Large-Scale Systems

    SciTech Connect (OSTI)

    Rajamony, Ram

    2014-11-20T23:59:59.000Z

    This report details the progress made on the ASCR funded project Performance Health Monitoring for Large Scale Systems. A large-­?scale application may not achieve its full performance potential due to degraded performance of even a single subsystem. Detecting performance faults, isolating them, and taking remedial action is critical for the scale of systems on the horizon. PHM aims to develop techniques and tools that can be used to identify and mitigate such performance problems. We accomplish this through two main aspects. The PHM framework encompasses diagnostics, system monitoring, fault isolation, and performance evaluation capabilities that indicates when a performance fault has been detected, either due to an anomaly present in the system itself or due to contention for shared resources between concurrently executing jobs. Software components called the PHM Control system then build upon the capabilities provided by the PHM framework to mitigate degradation caused by performance problems.

  5. Large-Scale Optimization for Bayesian Inference in Complex Systems

    SciTech Connect (OSTI)

    Willcox, Karen [MIT] [MIT; Marzouk, Youssef [MIT] [MIT

    2013-11-12T23:59:59.000Z

    The SAGUARO (Scalable Algorithms for Groundwater Uncertainty Analysis and Robust Optimization) Project focused on the development of scalable numerical algorithms for large-scale Bayesian inversion in complex systems that capitalize on advances in large-scale simulation-based optimization and inversion methods. The project was a collaborative effort among MIT, the University of Texas at Austin, Georgia Institute of Technology, and Sandia National Laboratories. The research was directed in three complementary areas: efficient approximations of the Hessian operator, reductions in complexity of forward simulations via stochastic spectral approximations and model reduction, and employing large-scale optimization concepts to accelerate sampling. The MIT--Sandia component of the SAGUARO Project addressed the intractability of conventional sampling methods for large-scale statistical inverse problems by devising reduced-order models that are faithful to the full-order model over a wide range of parameter values; sampling then employs the reduced model rather than the full model, resulting in very large computational savings. Results indicate little effect on the computed posterior distribution. On the other hand, in the Texas--Georgia Tech component of the project, we retain the full-order model, but exploit inverse problem structure (adjoint-based gradients and partial Hessian information of the parameter-to-observation map) to implicitly extract lower dimensional information on the posterior distribution; this greatly speeds up sampling methods, so that fewer sampling points are needed. We can think of these two approaches as ``reduce then sample'' and ``sample then reduce.'' In fact, these two approaches are complementary, and can be used in conjunction with each other. Moreover, they both exploit deterministic inverse problem structure, in the form of adjoint-based gradient and Hessian information of the underlying parameter-to-observation map, to achieve their speedups.

  6. Suppression of large-scale perturbations by stiff solid

    E-Print Network [OSTI]

    Vladimír Balek; Matej Škovran

    2015-01-28T23:59:59.000Z

    Evolution of large-scale scalar perturbations in the presence of stiff solid (solid with pressure to energy density ratio > 1/3) is studied. If the solid dominated the dynamics of the universe long enough, the perturbations could end up suppressed by as much as several orders of magnitude. To avoid too steep large-angle power spectrum of CMB, radiation must have prevailed over the solid long enough before recombination.

  7. Suppression of large-scale perturbations by stiff solid

    E-Print Network [OSTI]

    Balek, Vladimír

    2015-01-01T23:59:59.000Z

    Evolution of large-scale scalar perturbations in the presence of stiff solid (solid with pressure to energy density ratio > 1/3) is studied. If the solid dominated the dynamics of the universe long enough, the perturbations could end up suppressed by as much as several orders of magnitude. To avoid too steep large-angle power spectrum of CMB, radiation must have prevailed over the solid long enough before recombination.

  8. Geospatial Optimization of Siting Large-Scale Solar Projects

    SciTech Connect (OSTI)

    Macknick, J.; Quinby, T.; Caulfield, E.; Gerritsen, M.; Diffendorfer, J.; Haines, S.

    2014-03-01T23:59:59.000Z

    Recent policy and economic conditions have encouraged a renewed interest in developing large-scale solar projects in the U.S. Southwest. However, siting large-scale solar projects is complex. In addition to the quality of the solar resource, solar developers must take into consideration many environmental, social, and economic factors when evaluating a potential site. This report describes a proof-of-concept, Web-based Geographical Information Systems (GIS) tool that evaluates multiple user-defined criteria in an optimization algorithm to inform discussions and decisions regarding the locations of utility-scale solar projects. Existing siting recommendations for large-scale solar projects from governmental and non-governmental organizations are not consistent with each other, are often not transparent in methods, and do not take into consideration the differing priorities of stakeholders. The siting assistance GIS tool we have developed improves upon the existing siting guidelines by being user-driven, transparent, interactive, capable of incorporating multiple criteria, and flexible. This work provides the foundation for a dynamic siting assistance tool that can greatly facilitate siting decisions among multiple stakeholders.

  9. Primordial quantum nonequilibrium and large-scale cosmic anomalies

    E-Print Network [OSTI]

    Samuel Colin; Antony Valentini

    2014-07-31T23:59:59.000Z

    We study incomplete relaxation to quantum equilibrium at long wavelengths, during a pre-inflationary phase, as a possible explanation for the reported large-scale anomalies in the cosmic microwave background (CMB). Our scenario makes use of the de Broglie-Bohm pilot-wave formulation of quantum theory, in which the Born probability rule has a dynamical origin. The large-scale power deficit could arise from incomplete relaxation for the amplitudes of the primordial perturbations. We show, by numerical simulations for a spectator scalar field, that if the pre-inflationary era is radiation dominated then the deficit in the emerging power spectrum will have a characteristic shape (an inverse-tangent dependence on wavenumber k, with oscillations). It is found that our scenario is able to produce a power deficit in the observed region and of the observed (approximate) magnitude for an appropriate choice of cosmological parameters. We also discuss the large-scale anisotropy, which could arise from incomplete relaxation for the phases of the primordial perturbations. We present numerical simulations for phase relaxation, and we show how to define characteristic scales for amplitude and phase nonequilibrium. The extent to which the data might support our scenario is left as a question for future work. Our results suggest that we have a potentially viable model that might explain two apparently independent cosmic anomalies by means of a single mechanism.

  10. PARTITIONING OF MAJOR, MINOR, AND TRACE ELEMENTS DURING SIMULATED IN SITU OIL SHALE RETORTING IN A CONTROLLED-STATE RETORT

    E-Print Network [OSTI]

    Fox, J. P.

    2011-01-01T23:59:59.000Z

    by interactions between the products (oil, gas, and reported1979, Analysis of oil shale of products and effluents: thethat centage good product raw oil shale and input gases that

  11. Intergrated study of the Devonian-age black shales in eastern Ohio. Final report

    SciTech Connect (OSTI)

    Gray, J.D.; Struble, R.A.; Carlton, R.W.; Hodges, D.A.; Honeycutt, F.M.; Kingsbury, R.H.; Knapp, N.F.; Majchszak, F.L.; Stith, D.A.

    1982-09-01T23:59:59.000Z

    This integrated study of the Devonian-age shales in eastern Ohio by the Ohio Department of Natural Resources, Division of Geological Survey is part of the Eastern Gas Shales Project sponsored by the US Department of Energy. The six areas of research included in the study are: (1) detailed stratigraphic mapping, (2) detailed structure mapping, (3) mineralogic and petrographic characterization, (4) geochemical characterization, (5) fracture trace and lineament analysis, and (6) a gas-show monitoring program. The data generated by the study provide a basis for assessing the most promising stratigraphic horizons for occurrences of natural gas within the Devonian shale sequence and the most favorable geographic areas of the state for natural gas exploration and should be useful in the planning and design of production-stimulation techniques. Four major radioactive units in the Devonian shale sequence are believed to be important source rocks and reservoir beds for natural gas. In order of potential for development as an unconventional gas resource, they are (1) lower and upper radioactive facies of the Huron Shale Member of the Ohio Shale, (2) upper Olentangy Shale (Rhinestreet facies equivalent), (3) Cleveland Shale Member of the Ohio Shale, and (4) lower Olentangy Shale (Marcellus facies equivalent). These primary exploration targets are recommended on the basis of areal distribution, net thickness of radioactive shale, shows of natural gas, and drilling depth to the radioactive unit. Fracture trends indicate prospective areas for Devonian shale reservoirs. Good geological prospects in the Devonian shales should be located where the fracture trends coincide with thick sequences of organic-rich highly radioactive shale.

  12. OIL SHALE DEVELOPMENT IN CHINA

    E-Print Network [OSTI]

    J. Qian; J. Wang; S. Li

    In this paper history, current status and forecast of Chinese oil shale indus-try, as well as the characteristics of some typical Chinese oil shales are given.

  13. Oil shale as an energy source in Israel

    SciTech Connect (OSTI)

    Fainberg, V.; Hetsroni, G. [Technion-Israel Inst. of Tech., Haifa (Israel)

    1996-01-01T23:59:59.000Z

    Reserves, characteristics, energetics, chemistry, and technology of Israeli oil shales are described. Oil shale is the only source of energy and the only organic natural resource in Israel. Its reserves of about 12 billion tons will be enough to meet Israel`s requirements for about 80 years. The heating value of the oil shale is 1,150 kcal/kg, oil yield is 6%, and sulfur content of the oil is 5--7%. A method of oil shale processing, providing exhaustive utilization of its energy and chemical potential, developed in the Technion, is described. The principal feature of the method is a two-stage pyrolysis of the oil shale. As a result, gas and aromatic liquids are obtained. The gas may be used for energy production in a high-efficiency power unit, or as a source for chemical synthesis. The liquid products can be an excellent source for production of chemicals.

  14. Estimating Major and Minor Natural Fracture Patterns in Gas

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Estimating Major and Minor Natural Fracture Patterns in Gas Shales Using Production Data Razi Identification of infill drilling locations has been challenging with mixed results in gas shales. Natural fractures are the main source of permeability in gas shales. Natural fracture patterns in shale has a random

  15. RPSEA UNCONVENTIONAL GAS CONFERENCE 2012: Geology, the Environment, Hydraulic Fracturing

    E-Print Network [OSTI]

    Yener, Aylin

    Recovery and Salt Production - Jim Silva, GE Oil & Gas 9:30 a.m. Appalachian Shale and Barnett Area Water Shale Coalition 8:30 a.m. Meeting Overview & Agenda - Kent Perry, Vice President, Onshore Programs Isotope Interpretation Tools to Optimize Gas Shale Production - Yongchun Tang, PEER Institute Shale Gas

  16. Production patterns in Eagle Ford Shale (Decline Curve Analysis) Muoz Torres, J.1

    E-Print Network [OSTI]

    Texas at Austin, University of

    , the Eagle Ford Shale (EFS) play has had a remarkable development in natural gas and oil production. EFSEG39 Production patterns in Eagle Ford Shale (Decline Curve Analysis) Muñoz Torres, J.1 javier (bcf) of natural gas and 8,049 thousand barrels of oil. Up to 2020, it is expected that natural gas

  17. Generation of large-scale winds in horizontally anisotropic convection

    E-Print Network [OSTI]

    von Hardenberg, J; Provenzale, A; Spiegel, E A

    2015-01-01T23:59:59.000Z

    We simulate three-dimensional, horizontally periodic Rayleigh-B\\'enard convection between free-slip horizontal plates, rotating about a horizontal axis. When both the temperature difference between the plates and the rotation rate are sufficiently large, a strong horizontal wind is generated that is perpendicular to both the rotation vector and the gravity vector. The wind is turbulent, large-scale, and vertically sheared. Horizontal anisotropy, engendered here by rotation, appears necessary for such wind generation. Most of the kinetic energy of the flow resides in the wind, and the vertical turbulent heat flux is much lower on average than when there is no wind.

  18. Solar cycle variations of large scale flows in the Sun

    E-Print Network [OSTI]

    Sarbani Basu; H. M. Antia

    2000-01-17T23:59:59.000Z

    Using data from the Michelson Doppler Imager (MDI) instrument on board the Solar and Heliospheric Observatory (SOHO), we study the large-scale velocity fields in the outer part of the solar convection zone using the ring diagram technique. We use observations from four different times to study possible temporal variations in flow velocity. We find definite changes in both the zonal and meridional components of the flows. The amplitude of the zonal flow appears to increase with solar activity and the flow pattern also shifts towards lower latitude with time.

  19. Statistical analysis of large-scale structure in the Universe

    E-Print Network [OSTI]

    Martin Kerscher

    1999-12-15T23:59:59.000Z

    Methods for the statistical characterization of the large-scale structure in the Universe will be the main topic of the present text. The focus is on geometrical methods, mainly Minkowski functionals and the J-function. Their relations to standard methods used in cosmology and spatial statistics and their application to cosmological datasets will be discussed. This work is not only meant as a short review for comologist, but also attempts to illustrate these morphological methods and to make them accessible to scientists from other fields. Consequently, a short introduction to the standard picture of cosmology is given.

  20. Large-Scale Algal Cultivation, Harvesting and Downstream Processing Workshop

    Broader source: Energy.gov [DOE]

    ATP3 (Algae Testbed Public-Private Partnership) is hosting the Large-Scale Algal Cultivation, Harvesting and Downstream Processing Workshop on November 2–6, 2015, at the Arizona Center for Algae Technology and Innovation in Mesa, Arizona. Topics will include practical applications of growing and managing microalgal cultures at production scale (such as methods for handling cultures, screening strains for desirable characteristics, identifying and mitigating contaminants, scaling up cultures for outdoor growth, harvesting and processing technologies, and the analysis of lipids, proteins, and carbohydrates). Related training will include hands-on laboratory and field opportunities.

  1. Large-Scale Anisotropy of EGRET Gamma Ray Sources

    E-Print Network [OSTI]

    Luis Anchordoqui; Thomas McCauley; Thomas Paul; Olaf Reimer; Diego F. Torres

    2005-06-24T23:59:59.000Z

    In the course of its operation, the EGRET experiment detected high-energy gamma ray sources at energies above 100 MeV over the whole sky. In this communication, we search for large-scale anisotropy patterns among the catalogued EGRET sources using an expansion in spherical harmonics, accounting for EGRET's highly non-uniform exposure. We find significant excess in the quadrupole and octopole moments. This is consistent with the hypothesis that, in addition to the galactic plane, a second mid-latitude (5^{\\circ} < |b| < 30^{\\circ}) population, perhaps associated with the Gould belt, contributes to the gamma ray flux above 100 MeV.

  2. Robust Morphological Measures for Large-Scale Structure

    E-Print Network [OSTI]

    T. Buchert

    1994-12-17T23:59:59.000Z

    A complete family of statistical descriptors for the morphology of large--scale structure based on Minkowski--Functionals is presented. These robust and significant measures can be used to characterize the local and global morphology of spatial patterns formed by a coverage of point sets which represent galaxy samples. Basic properties of these measures are highlighted and their relation to the `genus statistics' is discussed. Test models like a Poissonian point process and samples generated from a Voronoi--model are put into perspective.

  3. Large scale obscuration and related climate effects open literature bibliography

    SciTech Connect (OSTI)

    Russell, N.A.; Geitgey, J.; Behl, Y.K.; Zak, B.D.

    1994-05-01T23:59:59.000Z

    Large scale obscuration and related climate effects of nuclear detonations first became a matter of concern in connection with the so-called ``Nuclear Winter Controversy`` in the early 1980`s. Since then, the world has changed. Nevertheless, concern remains about the atmospheric effects of nuclear detonations, but the source of concern has shifted. Now it focuses less on global, and more on regional effects and their resulting impacts on the performance of electro-optical and other defense-related systems. This bibliography reflects the modified interest.

  4. Large-Scale Liquid Hydrogen Handling Equipment | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLEDControl ConceptCombustionLarge-Scale

  5. Water mist injection in oil shale retorting

    DOE Patents [OSTI]

    Galloway, T.R.; Lyczkowski, R.W.; Burnham, A.K.

    1980-07-30T23:59:59.000Z

    Water mist is utilized to control the maximum temperature in an oil shale retort during processing. A mist of water droplets is generated and entrained in the combustion supporting gas flowing into the retort in order to distribute the liquid water droplets throughout the retort. The water droplets are vaporized in the retort in order to provide an efficient coolant for temperature control.

  6. Barnett Marcellus Shales December 10, 2008

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Barnett ­ Marcellus Shales December 10, 2008 #12;2 Why Are We Here Today? Pennsylvania, New York is in the heart of the Marcellus #12;3 More Than Just Natural Gas: This Is the Bigger Story *Perryman Report, 2008 Compare to the Marcellus? Lies 7,000 to 7,200 feet below the surface Much smaller drilling locations

  7. Large-scale anisotropy in stably stratified rotating flows

    SciTech Connect (OSTI)

    Marino, Dr. Raffaele [National Center for Atmospheric Research (NCAR); Mininni, Dr. Pablo D. [Universidad de Buenos Aires, Argentina; Rosenberg, Duane L [ORNL; Pouquet, Dr. Annick [National Center for Atmospheric Research (NCAR)

    2014-01-01T23:59:59.000Z

    We present results from direct numerical simulations of the Boussinesq equations in the presence of rotation and/or stratification, both in the vertical direction. The runs are forced isotropically and randomly at small scales and have spatial resolutions of up to $1024^3$ grid points and Reynolds numbers of $\\approx 1000$. We first show that solutions with negative energy flux and inverse cascades develop in rotating turbulence, whether or not stratification is present. However, the purely stratified case is characterized instead by an early-time, highly anisotropic transfer to large scales with almost zero net isotropic energy flux. This is consistent with previous studies that observed the development of vertically sheared horizontal winds, although only at substantially later times. However, and unlike previous works, when sufficient scale separation is allowed between the forcing scale and the domain size, the total energy displays a perpendicular (horizontal) spectrum with power law behavior compatible with $\\sim k_\\perp^{-5/3}$, including in the absence of rotation. In this latter purely stratified case, such a spectrum is the result of a direct cascade of the energy contained in the large-scale horizontal wind, as is evidenced by a strong positive flux of energy in the parallel direction at all scales including the largest resolved scales.

  8. Optimal operation of large-scale power systems

    SciTech Connect (OSTI)

    Lee, K.Y.; Ortiz, J.L.; Mohtadi, M.A.; Park, Y.M.

    1988-05-01T23:59:59.000Z

    This paper presents a method for an optimal operation of large-scale power systems similar to the one utilized by the Houston Lighting and Power Company. The main objective is to minimize the system fuel costs, and maintain an acceptable system performance in terms of limits on generator real and reactive power outputs, transformer tap settings, and bus voltage levels. Minimizing the fuel costs of such large-scale systems enhances the performance of optimal real power generator allocation and of optimal power flow that results in an economic dispatch. The gradient projection method (GPM) is utilized in solving the optimization problems. It is an iterative numerical procedure for finding an extremum of a function of several variables that are required to satisfy various constraining relations without using penalty functions or Lagrange multipliers among other advantages. Mathematical models are developed to represent the sensitivity relationships between dependent and control variables for both real- and reactive-power optimization procedures; and thus eliminate the use of B-coefficients. Data provided by the Houston lighting and Power Company are used to demonstrate the effectiveness of the proposed procedures.

  9. Skewness and Kurtosis in Large-Scale Cosmic Fields

    E-Print Network [OSTI]

    F. Bernardeau

    1993-12-13T23:59:59.000Z

    In this paper, I present the calculation of the third and fourth moments of both the distribution function of the large--scale density and the large--scale divergence of the velocity field, $\\theta$. These calculations are made by the mean of perturbative calculations assuming Gaussian initial conditions and are expected to be valid in the linear or quasi linear regime. The moments are derived for a top--hat window function and for any cosmological parameters $\\Omega$ and $\\Lambda$. It turns out that the dependence with $\\Lambda$ is always very weak whereas the moments of the distribution function of the divergence are strongly dependent on $\\Omega$. A method to measure $\\Omega$ using the skewness of this field has already been presented by Bernardeau et al. (1993). I show here that the simultaneous measurement of the skewness and the kurtosis allows to test the validity of the gravitational instability scenario hypothesis. Indeed there is a combination of the first three moments of $\\theta$ that is almost independent of the cosmological parameters $\\Omega$ and $\\Lambda$, $${(-3^2) \\over ^2}\\approx 1.5,$$ (the value quoted is valid when the index of the power spectrum at the filtering scale is close to -1) so that any cosmic velocity field created by gravitational instabilities should verify such a property.

  10. Oil shale research in China

    SciTech Connect (OSTI)

    Jianqiu, W.; Jialin, Q. (Beijing Graduate School, Petroleum Univ., Beijing (CN))

    1989-01-01T23:59:59.000Z

    There have been continued efforts and new emergence in oil shale research in Chine since 1980. In this paper, the studies carried out in universities, academic, research and industrial laboratories in recent years are summarized. The research areas cover the chemical structure of kerogen; thermal behavior of oil shale; drying, pyrolysis and combustion of oil shale; shale oil upgrading; chemical utilization of oil shale; retorting waste water treatment and economic assessment.

  11. The Shale Gas Matt Ridley

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Environmental impacts ................................................................19 Fracking fluid

  12. Shale Natural Gas Estimated Production

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial ConsumersThousand CubicCubicIndia (Million2,116 3,110 5,336 7,994 10,371

  13. Characterization of an Eastern Kentucky Devonian Shales well using a naturally fractured, layered reservoir description 

    E-Print Network [OSTI]

    Jochen, John Edward

    1993-01-01T23:59:59.000Z

    and pressure transient data for a single gas well completed in the Devonian Shales of the Appalachian Basin in Pike Co. , KY. This well was part of a three-well research program sponsored by the Gas Research Institute (GRI) to study the Devonian Shales.... , KY). From the tests conducted on the Preece No. 1, Hopkins et al. concluded that large Devonian Shales intervals which were treated jointly in a single wellbore often were not stimulated effectively, because small intervals accepted a...

  14. Oil shale derived pollutant control materials and methods and apparatuses for producing and utilizing the same

    DOE Patents [OSTI]

    Boardman, Richard D.; Carrington, Robert A.

    2010-05-04T23:59:59.000Z

    Pollution control substances may be formed from the combustion of oil shale, which may produce a kerogen-based pyrolysis gas and shale sorbent, each of which may be used to reduce, absorb, or adsorb pollutants in pollution producing combustion processes, pyrolysis processes, or other reaction processes. Pyrolysis gases produced during the combustion or gasification of oil shale may also be used as a combustion gas or may be processed or otherwise refined to produce synthetic gases and fuels.

  15. Expectations for Oil Shale Production (released in AEO2009)

    Reports and Publications (EIA)

    2009-01-01T23:59:59.000Z

    Oil shales are fine-grained sedimentary rocks that contain relatively large amounts of kerogen, which can be converted into liquid and gaseous hydrocarbons (petroleum liquids, natural gas liquids, and methane) by heating the rock, usually in the absence of oxygen, to 650 to 700 degrees Fahrenheit (in situ retorting) or 900 to 950 degrees Fahrenheit (surface retorting). (Oil shale is, strictly speaking, a misnomer in that the rock is not necessarily a shale and contains no crude oil.) The richest U.S. oil shale deposits are located in Northwest Colorado, Northeast Utah, and Southwest Wyoming. Currently, those deposits are the focus of petroleum industry research and potential future production. Among the three states, the richest oil shale deposits are on federal lands in northwest Colorado.

  16. Atypical Behavior Identification in Large Scale Network Traffic

    SciTech Connect (OSTI)

    Best, Daniel M.; Hafen, Ryan P.; Olsen, Bryan K.; Pike, William A.

    2011-10-23T23:59:59.000Z

    Cyber analysts are faced with the daunting challenge of identifying exploits and threats within potentially billions of daily records of network traffic. Enterprise-wide cyber traffic involves hundreds of millions of distinct IP addresses and results in data sets ranging from terabytes to petabytes of raw data. Creating behavioral models and identifying trends based on those models requires data intensive architectures and techniques that can scale as data volume increases. Analysts need scalable visualization methods that foster interactive exploration of data and enable identification of behavioral anomalies. Developers must carefully consider application design, storage, processing, and display to provide usability and interactivity with large-scale data. We present an application that highlights atypical behavior in enterprise network flow records. This is accomplished by utilizing data intensive architectures to store the data, aggregation techniques to optimize data access, statistical techniques to characterize behavior, and a visual analytic environment to render the behavioral trends, highlight atypical activity, and allow for exploration.

  17. Transition from Large-Scale to Small-Scale Dynamo

    SciTech Connect (OSTI)

    Ponty, Y. [Universite de Nice Sophia-Antipolis, CNRS, Observatoire de la Cote d'Azur, B.P. 4229, Nice cedex 04 (France); Plunian, F. [Institut des Sciences de la Terre, CNRS, Universite Joseph Fourier, B.P. 53, 38041 Grenoble cedex 09 (France)

    2011-04-15T23:59:59.000Z

    The dynamo equations are solved numerically with a helical forcing corresponding to the Roberts flow. In the fully turbulent regime the flow behaves as a Roberts flow on long time scales, plus turbulent fluctuations at short time scales. The dynamo onset is controlled by the long time scales of the flow, in agreement with the former Karlsruhe experimental results. The is governed by a generalized {alpha} effect, which includes both the usual {alpha} effect and turbulent diffusion, plus all higher order effects. Beyond the onset we find that this generalized {alpha} effect scales as O(Rm{sup -1}), suggesting the takeover of small-scale dynamo action. This is confirmed by simulations in which dynamo occurs even if the large-scale field is artificially suppressed.

  18. The XMM/Megacam-VST/VIRMOS Large Scale Structure Survey

    E-Print Network [OSTI]

    M. Pierre

    2000-11-08T23:59:59.000Z

    The objective of the XMM-LSS Survey is to map the large scale structure of the universe, as highlighted by clusters and groups of galaxies, out to a redshift of about 1, over a single 8x8 sq.deg. area. For the first time, this will reveal the topology of the distribution of the deep potential wells and provide statistical measurements at truly cosmological distances. In addition, clusters identified via their X-ray properties will form the basis for the first uniformly-selected, multi-wavelength survey of the evolution of clusters and individual cluster galaxies as a function of redshift. The survey will also address the very important question of the QSO distribution within the cosmic web.

  19. Recovery Act - Large Scale SWNT Purification and Solubilization

    SciTech Connect (OSTI)

    Michael Gemano; Dr. Linda B. McGown

    2010-10-07T23:59:59.000Z

    The goal of this Phase I project was to establish a quantitative foundation for development of binary G-gels for large-scale, commercial processing of SWNTs and to develop scientific insight into the underlying mechanisms of solubilization, selectivity and alignment. In order to accomplish this, we performed systematic studies to determine the effects of G-gel composition and experimental conditions that will enable us to achieve our goals that include (1) preparation of ultra-high purity SWNTs from low-quality, commercial SWNT starting materials, (2) separation of MWNTs from SWNTs, (3) bulk, non-destructive solubilization of individual SWNTs in aqueous solution at high concentrations (10-100 mg/mL) without sonication or centrifugation, (4) tunable enrichment of subpopulations of the SWNTs based on metallic vs. semiconductor properties, diameter, or chirality and (5) alignment of individual SWNTs.

  20. Planning under uncertainty solving large-scale stochastic linear programs

    SciTech Connect (OSTI)

    Infanger, G. (Stanford Univ., CA (United States). Dept. of Operations Research Technische Univ., Vienna (Austria). Inst. fuer Energiewirtschaft)

    1992-12-01T23:59:59.000Z

    For many practical problems, solutions obtained from deterministic models are unsatisfactory because they fail to hedge against certain contingencies that may occur in the future. Stochastic models address this shortcoming, but up to recently seemed to be intractable due to their size. Recent advances both in solution algorithms and in computer technology now allow us to solve important and general classes of practical stochastic problems. We show how large-scale stochastic linear programs can be efficiently solved by combining classical decomposition and Monte Carlo (importance) sampling techniques. We discuss the methodology for solving two-stage stochastic linear programs with recourse, present numerical results of large problems with numerous stochastic parameters, show how to efficiently implement the methodology on a parallel multi-computer and derive the theory for solving a general class of multi-stage problems with dependency of the stochastic parameters within a stage and between different stages.

  1. Training a Large Scale Classifier with the Quantum Adiabatic Algorithm

    E-Print Network [OSTI]

    Hartmut Neven; Vasil S. Denchev; Geordie Rose; William G. Macready

    2009-12-04T23:59:59.000Z

    In a previous publication we proposed discrete global optimization as a method to train a strong binary classifier constructed as a thresholded sum over weak classifiers. Our motivation was to cast the training of a classifier into a format amenable to solution by the quantum adiabatic algorithm. Applying adiabatic quantum computing (AQC) promises to yield solutions that are superior to those which can be achieved with classical heuristic solvers. Interestingly we found that by using heuristic solvers to obtain approximate solutions we could already gain an advantage over the standard method AdaBoost. In this communication we generalize the baseline method to large scale classifier training. By large scale we mean that either the cardinality of the dictionary of candidate weak classifiers or the number of weak learners used in the strong classifier exceed the number of variables that can be handled effectively in a single global optimization. For such situations we propose an iterative and piecewise approach in which a subset of weak classifiers is selected in each iteration via global optimization. The strong classifier is then constructed by concatenating the subsets of weak classifiers. We show in numerical studies that the generalized method again successfully competes with AdaBoost. We also provide theoretical arguments as to why the proposed optimization method, which does not only minimize the empirical loss but also adds L0-norm regularization, is superior to versions of boosting that only minimize the empirical loss. By conducting a Quantum Monte Carlo simulation we gather evidence that the quantum adiabatic algorithm is able to handle a generic training problem efficiently.

  2. Large-scale fabrication and assembly of carbon nanotubes via nanopelleting

    E-Print Network [OSTI]

    El Aguizy, Tarek A., 1977-

    2004-01-01T23:59:59.000Z

    Widespread use of carbon nanotubes is predicated on the development of robust large-scale manufacturing techniques. There remain, however, few feasible methods for the large-scale handling of aligned and geometrically ...

  3. Division of Oil, Gas, and Mining Permitting

    E-Print Network [OSTI]

    Utah, University of

    " or "Gas" does not include any gaseous or liquid substance processed from coal, oil shale, or tar sands

  4. Microporomechanical modeling of shale

    E-Print Network [OSTI]

    Ortega, J. Alberto (Jose Alberta Ortega Andrade)

    2010-01-01T23:59:59.000Z

    Shale, a common type of sedimentary rock of significance to petroleum and reservoir engineering, has recently emerged as a crucial component in the design of sustainable carbon and nuclear waste storage solutions and as a ...

  5. Production of Shale Oil 

    E-Print Network [OSTI]

    Loper, R. D.

    1982-01-01T23:59:59.000Z

    Intensive pre-project feasibility and engineering studies begun in 1979 have produced an outline plan for development of a major project for production of shale oil from private lands in the Piceance Basin in western Colorado. This outline plan...

  6. Fast Track Reservoir Modeling of Shale Formations in the Appalachian Basin.

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    in Lower Huron Shale (Big Sandy Gas Field), were used in this study; · Production was history matched models were developed. #12;4 Location of the Study Area Big Sandy Gas Field #12;5 Lower Huron Shale Matching - Forecasting #12;12 Top Down Reservoir Modeleing - Workflow · Decline Curve analysis · Type Curve

  7. Shale oil by 1990

    SciTech Connect (OSTI)

    Isaac, E.D.; Svoboda, D.

    1981-01-01T23:59:59.000Z

    Commercial processing of oil shale is currently being carried out in two countries, these being Manchuria and Estonia. Germany, Israel, Australia, Brazil and the United States are planning commercial development of oil shale during the 1980's. In the United States, developers currently pursuing production facilities in the Piceance Basin in Colorado are the Union Oil Company; Colony Development Company, now owned by Tosco and Exxon; Occidental Oil Shale Inc.; The Rio Blanco Shale Company (Amoco and Gulf) CA Tract; The Cathedral Bluff's Oil Shale Company (Oxy and Tenneco) at CB tract; The Anvil Points Bureau of Mines Site under the direction of DOE which has been leased to the Paraho Development Company to optimize their process; and Superior Oil. Superior Oil plans to recover Negcolite and Dowsonite that are associated with their oil shale. The processes used by these companies are described briefly. These are the Union B process, Tosco II process, Paraho process, and Occidental process. It is estimated that between 400,000 to 500,000 barrels per day (63,600 to 79,500 m/sup 3//day) production would be achieved by 1990 if all of the effects on the infrastructure are planned for and constructed in an orderly manner.

  8. Influence of Western North Pacific Tropical Cyclones on Their Large-Scale Environment

    E-Print Network [OSTI]

    Sobel, Adam

    water vapor, and sea surface tem- perature (SST)] on an index of TC activity [accumulated cyclone energyInfluence of Western North Pacific Tropical Cyclones on Their Large-Scale Environment ADAM H. SOBEL) tropical cyclones (TCs) on their large-scale environment by lag regressing various large-scale climate

  9. Large Scale Approximate Inference and Experimental Design for Sparse Linear Models

    E-Print Network [OSTI]

    Seeger, Matthias

    Large Scale Approximate Inference and Experimental Design for Sparse Linear Models Matthias W.kyb.tuebingen.mpg.de/bs/people/seeger/ 27 June 2008 Matthias W. Seeger (MPI BioCyb) Large Scale Bayesian Experimental Design 27/6/08 1 / 27 Algorithms 4 Magnetic Resonance Imaging Sequences Matthias W. Seeger (MPI BioCyb) Large Scale Bayesian

  10. LiveBench-2: Large-Scale Automated Evaluation of Protein Structure Prediction Servers

    E-Print Network [OSTI]

    Fischer, Daniel

    LiveBench-2: Large-Scale Automated Evaluation of Protein Structure Prediction Servers Janusz M from other evaluation experiments because it is a large-scale and a fully automated procedure. Since, to keep in pace with the development, we present the results of the second large-scale evaluation of pro

  11. January 20, 2011 Marcellus Shale 101

    E-Print Network [OSTI]

    Hardy, Christopher R.

    . Will oil shale be viable as well? Oil shale will not be economically viable anytime in the near future

  12. Large-Scale Spray Releases: Additional Aerosol Test Results

    SciTech Connect (OSTI)

    Daniel, Richard C.; Gauglitz, Phillip A.; Burns, Carolyn A.; Fountain, Matthew S.; Shimskey, Rick W.; Billing, Justin M.; Bontha, Jagannadha R.; Kurath, Dean E.; Jenks, Jeromy WJ; MacFarlan, Paul J.; Mahoney, Lenna A.

    2013-08-01T23:59:59.000Z

    One of the events postulated in the hazard analysis for the Waste Treatment and Immobilization Plant (WTP) and other U.S. Department of Energy (DOE) nuclear facilities is a breach in process piping that produces aerosols with droplet sizes in the respirable range. The current approach for predicting the size and concentration of aerosols produced in a spray leak event involves extrapolating from correlations reported in the literature. These correlations are based on results obtained from small engineered spray nozzles using pure liquids that behave as a Newtonian fluid. The narrow ranges of physical properties on which the correlations are based do not cover the wide range of slurries and viscous materials that will be processed in the WTP and in processing facilities across the DOE complex. To expand the data set upon which the WTP accident and safety analyses were based, an aerosol spray leak testing program was conducted by Pacific Northwest National Laboratory (PNNL). PNNL’s test program addressed two key technical areas to improve the WTP methodology (Larson and Allen 2010). The first technical area was to quantify the role of slurry particles in small breaches where slurry particles may plug the hole and prevent high-pressure sprays. The results from an effort to address this first technical area can be found in Mahoney et al. (2012a). The second technical area was to determine aerosol droplet size distribution and total droplet volume from prototypic breaches and fluids, including sprays from larger breaches and sprays of slurries for which literature data are mostly absent. To address the second technical area, the testing program collected aerosol generation data at two scales, commonly referred to as small-scale and large-scale testing. The small-scale testing and resultant data are described in Mahoney et al. (2012b), and the large-scale testing and resultant data are presented in Schonewill et al. (2012). In tests at both scales, simulants were used to mimic the relevant physical properties projected for actual WTP process streams.

  13. Ferroelectric opening switches for large-scale pulsed power drivers.

    SciTech Connect (OSTI)

    Brennecka, Geoffrey L.; Rudys, Joseph Matthew; Reed, Kim Warren; Pena, Gary Edward; Tuttle, Bruce Andrew; Glover, Steven Frank

    2009-11-01T23:59:59.000Z

    Fast electrical energy storage or Voltage-Driven Technology (VDT) has dominated fast, high-voltage pulsed power systems for the past six decades. Fast magnetic energy storage or Current-Driven Technology (CDT) is characterized by 10,000 X higher energy density than VDT and has a great number of other substantial advantages, but it has all but been neglected for all of these decades. The uniform explanation for neglect of CDT technology is invariably that the industry has never been able to make an effective opening switch, which is essential for the use of CDT. Most approaches to opening switches have involved plasma of one sort or another. On a large scale, gaseous plasmas have been used as a conductor to bridge the switch electrodes that provides an opening function when the current wave front propagates through to the output end of the plasma and fully magnetizes the plasma - this is called a Plasma Opening Switch (POS). Opening can be triggered in a POS using a magnetic field to push the plasma out of the A-K gap - this is called a Magnetically Controlled Plasma Opening Switch (MCPOS). On a small scale, depletion of electron plasmas in semiconductor devices is used to affect opening switch behavior, but these devices are relatively low voltage and low current compared to the hundreds of kilo-volts and tens of kilo-amperes of interest to pulsed power. This work is an investigation into an entirely new approach to opening switch technology that utilizes new materials in new ways. The new materials are Ferroelectrics and using them as an opening switch is a stark contrast to their traditional applications in optics and transducer applications. Emphasis is on use of high performance ferroelectrics with the objective of developing an opening switch that would be suitable for large scale pulsed power applications. Over the course of exploring this new ground, we have discovered new behaviors and properties of these materials that were here to fore unknown. Some of these unexpected discoveries have lead to new research directions to address challenges.

  14. Water Use in the Eagle Ford Shale: An Economic and Policy Analysis of Water Supply and Demand

    E-Print Network [OSTI]

    Arnett, Benton; Healy, Kevin; Jiang, Zhongnan; LeClere, David; McLaughlin, Leslie; Roberts, Joey; Steadman, Maxwell

    2014-01-01T23:59:59.000Z

    inaccessible shale reserves to produce abundant amounts of oil and gas. The oil and gas proliferation in the Eagle Ford has seen exponential growth, and production is not anticipated to decline until 2025. In addition, a typical HF well in the Eagle Ford... Figures Figure 1: Map of the Eagle Ford Shale Oil, Gas and Condensate Play .......................................................... 4 Figure 2: Production Growth within the Eagle Ford Shale...

  15. Infrared spectroscopy of large scale single layer graphene on self assembled organic monolayer

    SciTech Connect (OSTI)

    Woo Kim, Nak; Youn Kim, Joo; Lee, Chul; Choi, E. J., E-mail: echoi@uos.ac.kr [Department of Physics, University of Seoul, Seoul 130-743 (Korea, Republic of); Jin Kim, Sang; Hee Hong, Byung [Department of Chemistry, Seoul National University, Seoul 151-742 (Korea, Republic of)

    2014-01-27T23:59:59.000Z

    We study the effect of self-assembled monolayer (SAM) organic molecule substrate on large scale single layer graphene using infrared transmission measurement on Graphene/SAM/SiO{sub 2}/Si composite samples. From the Drude weight of the chemically inert CH{sub 3}-SAM, the electron-donating NH{sub 2}-SAM, and the SAM-less graphene, we determine the carrier density doped into graphene by the three sources—the SiO{sub 2} substrate, the gas-adsorption, and the functional group of the SAM's—separately. The SAM-treatment leads to the low carrier density N???4?Ś?10{sup 11}?cm{sup ?2} by blocking the dominant SiO{sub 2}- driven doping. The carrier scattering increases by the SAM-treatment rather than decreases. However, the transport mobility is nevertheless improved due to the reduced carrier doping.

  16. A review of large-scale LNG spills : experiment and modeling.

    SciTech Connect (OSTI)

    Luketa-Hanlin, Anay Josephine

    2005-04-01T23:59:59.000Z

    The prediction of the possible hazards associated with the storage and transportation of liquefied natural gas (LNG) by ship has motivated a substantial number of experimental and analytical studies. This paper reviews the experimental and analytical work performed to date on large-scale spills of LNG. Specifically, experiments on the dispersion of LNG, as well as experiments of LNG fires from spills on water and land are reviewed. Explosion, pool boiling, and rapid phase transition (RPT) explosion studies are described and discussed, as well as models used to predict dispersion and thermal hazard distances. Although there have been significant advances in understanding the behavior of LNG spills, technical knowledge gaps to improve hazard prediction are identified. Some of these gaps can be addressed with current modeling and testing capabilities. A discussion of the state of knowledge and recommendations to further improve the understanding of the behavior of LNG spills on water is provided.

  17. Fractal Approach to Large-Scale Galaxy Distribution

    E-Print Network [OSTI]

    Yurij Baryshev; Pekka Teerikorpi

    2005-05-10T23:59:59.000Z

    We present a review of the history and the present state of the fractal approach to the large-scale distribution of galaxies. Angular correlation function was used as a general instrument for the structure analysis. It was realized later that a normalization condition for the reduced correlation function estimator results in distorted values for both R_{hom} and fractal dimension D. Moreover, according to a theorem on projections of fractals, galaxy angular catalogues can not be used for detecting a structure with the fractal dimension D>2. For this 3-d maps are required, and indeed modern extensive redshift-based 3-d maps have revealed the ``hidden'' fractal dimension of about 2, and have confirmed superclustering at scales even up to 500 Mpc (e.g. the Sloan Great Wall). On scales, where the fractal analysis is possible in completely embedded spheres, a power--law density field has been found. The fractal dimension D =2.2 +- 0.2 was directly obtained from 3-d maps and R_{hom} has expanded from 10 Mpc to scales approaching 100 Mpc. In concordance with the 3-d map results, modern all sky galaxy counts in the interval 10^m - 15^m give a 0.44m-law which corresponds to D=2.2 within a radius of 100h^{-1}_{100} Mpc. We emphasize that the fractal mass--radius law of galaxy clustering has become a key phenomenon in observational cosmology.

  18. Parallel Index and Query for Large Scale Data Analysis

    SciTech Connect (OSTI)

    Chou, Jerry; Wu, Kesheng; Ruebel, Oliver; Howison, Mark; Qiang, Ji; Prabhat,; Austin, Brian; Bethel, E. Wes; Ryne, Rob D.; Shoshani, Arie

    2011-07-18T23:59:59.000Z

    Modern scientific datasets present numerous data management and analysis challenges. State-of-the-art index and query technologies are critical for facilitating interactive exploration of large datasets, but numerous challenges remain in terms of designing a system for process- ing general scientific datasets. The system needs to be able to run on distributed multi-core platforms, efficiently utilize underlying I/O infrastructure, and scale to massive datasets. We present FastQuery, a novel software framework that address these challenges. FastQuery utilizes a state-of-the-art index and query technology (FastBit) and is designed to process mas- sive datasets on modern supercomputing platforms. We apply FastQuery to processing of a massive 50TB dataset generated by a large scale accelerator modeling code. We demonstrate the scalability of the tool to 11,520 cores. Motivated by the scientific need to search for inter- esting particles in this dataset, we use our framework to reduce search time from hours to tens of seconds.

  19. ANALYSIS OF TURBULENT MIXING JETS IN LARGE SCALE TANK

    SciTech Connect (OSTI)

    Lee, S; Richard Dimenna, R; Robert Leishear, R; David Stefanko, D

    2007-03-28T23:59:59.000Z

    Flow evolution models were developed to evaluate the performance of the new advanced design mixer pump for sludge mixing and removal operations with high-velocity liquid jets in one of the large-scale Savannah River Site waste tanks, Tank 18. This paper describes the computational model, the flow measurements used to provide validation data in the region far from the jet nozzle, the extension of the computational results to real tank conditions through the use of existing sludge suspension data, and finally, the sludge removal results from actual Tank 18 operations. A computational fluid dynamics approach was used to simulate the sludge removal operations. The models employed a three-dimensional representation of the tank with a two-equation turbulence model. Both the computational approach and the models were validated with onsite test data reported here and literature data. The model was then extended to actual conditions in Tank 18 through a velocity criterion to predict the ability of the new pump design to suspend settled sludge. A qualitative comparison with sludge removal operations in Tank 18 showed a reasonably good comparison with final results subject to significant uncertainties in actual sludge properties.

  20. An improved voltage control on large-scale power system

    SciTech Connect (OSTI)

    Vu, H.; Pruvot, P.; Launay, C.; Harmand, Y. [Electricite de France, Clamart (France). Study and Research Div.] [Electricite de France, Clamart (France). Study and Research Div.

    1996-08-01T23:59:59.000Z

    To achieve a better voltage-var control in the electric power transmission system, different facilities are used. Generators are equipped with automatic voltage regulators to cope with sudden and random changes voltage caused by natural load fluctuations or failures. Other devices like capacitors, inductors, transformers with on load tap changers are installed on the network. Faced with the evolution of the network and operating conditions, electricity utilities are more and more interested in overall and coherent control systems, automatic or not. These systems are expected to coordinate the actions of local facilities for a better voltage control (more stable and faster reaction) inside different areas of the network in case of greater voltage and var variations. They affords besides a better use of existing reactive resources. Also, installation of new devices can be avoided allowing economy of investment. With this frame of mind, EDF has designed a system called Co-ordinated Secondary Voltage Control (CSVC). It`s an automatic closed loop system with a dynamic of a few minutes. It takes into account the network conditions (topology, loads), the voltage limits and the generator operating constraints. This paper presents recent improvements which allow the CSVC to control the voltage profile and different kinds of reactive means on a large-scale power system. Furthermore, this paper presents solution to spread out investment costs over several years, considering a deployment gradually extended.

  1. Large-scale star formation in the Magellanic Clouds

    E-Print Network [OSTI]

    Jochen M. Braun

    2001-08-03T23:59:59.000Z

    In this contribution I will present the current status of our project of stellar population analyses and spatial information of both Magellanic Clouds (MCs). The Magellanic Clouds - especially the LMC with its large size and small depth (<300pc) - are suitable laboratories and testing ground for theoretical models of star formation. With distance moduli of 18.5 and 18.9mag for the LMC and SMC, respectively, and small galactic extinction, their stellar content can be studied in detail from the most massive stars of the youngest populations (<25Myr) connected to H-alpha emission down to the low mass end of about 1/10 of a solar mass. Based on broad-band photometry (U,B,V) I present results for the supergiant shell (SGS) SMC1, some regions at the LMC east side incl. LMC2 showing different overlapping young populations and the region around N171 with its large and varying colour excess, and LMC4. This best studied SGS shows a coeval population aged about 12Myr with little age spread and no correlation to distance from LMC4's centre. I will show that the available data are not compatible with many of the proposed scenarios like SSPSF or a central trigger (like a cluster or GRB), while a large-scale trigger like the bow-shock of the rotating LMC can do the job.

  2. Classical Control of Large-Scale Quantum Computers

    E-Print Network [OSTI]

    Simon J. Devitt

    2014-05-20T23:59:59.000Z

    The accelerated development of quantum technology has reached a pivotal point. Early in 2014, several results were published demonstrating that several experimental technologies are now accurate enough to satisfy the requirements of fault-tolerant, error corrected quantum computation. While there are many technological and experimental issues that still need to be solved, the ability of experimental systems to now have error rates low enough to satisfy the fault-tolerant threshold for several error correction models is a tremendous milestone. Consequently, it is now a good time for the computer science and classical engineering community to examine the {\\em classical} problems associated with compiling quantum algorithms and implementing them on future quantum hardware. In this paper, we will review the basic operational rules of a topological quantum computing architecture and outline one of the most important classical problems that need to be solved; the decoding of error correction data for a large-scale quantum computer. We will endeavour to present these problems independently from the underlying physics as much of this work can be effectively solved by non-experts in quantum information or quantum mechanics.

  3. Testing Inflation with Large Scale Structure: Connecting Hopes with Reality

    E-Print Network [OSTI]

    Marcelo Alvarez; Tobias Baldauf; J. Richard Bond; Neal Dalal; Roland de Putter; Olivier Doré; Daniel Green; Chris Hirata; Zhiqi Huang; Dragan Huterer; Donghui Jeong; Matthew C. Johnson; Elisabeth Krause; Marilena Loverde; Joel Meyers; P. Daniel Meerburg; Leonardo Senatore; Sarah Shandera; Eva Silverstein; Anže Slosar; Kendrick Smith; Matias Zaldarriaga; Valentin Assassi; Jonathan Braden; Amir Hajian; Takeshi Kobayashi; George Stein; Alexander van Engelen

    2014-12-15T23:59:59.000Z

    The statistics of primordial curvature fluctuations are our window into the period of inflation, where these fluctuations were generated. To date, the cosmic microwave background has been the dominant source of information about these perturbations. Large scale structure is however from where drastic improvements should originate. In this paper, we explain the theoretical motivations for pursuing such measurements and the challenges that lie ahead. In particular, we discuss and identify theoretical targets regarding the measurement of primordial non-Gaussianity. We argue that when quantified in terms of the local (equilateral) template amplitude $f_{\\rm NL}^{\\rm loc}$ ($f_{\\rm NL}^{\\rm eq}$), natural target levels of sensitivity are $\\Delta f_{\\rm NL}^{\\rm loc, eq.} \\simeq 1$. We highlight that such levels are within reach of future surveys by measuring 2-, 3- and 4-point statistics of the galaxy spatial distribution. This paper summarizes a workshop held at CITA (University of Toronto) on October 23-24, 2014.

  4. Giant radio galaxies - II. Tracers of large-scale structure

    E-Print Network [OSTI]

    Malarecki, J M; Saripalli, L; Staveley-Smith, L; Subrahmanyan, R

    2015-01-01T23:59:59.000Z

    We have carried out optical spectroscopy with the Anglo-Australian Telescope for 24,726 objects surrounding a sample of 19 Giant Radio Galaxies (GRGs) selected to have redshifts in the range 0.05 to 0.15 and projected linear sizes from 0.8 to 3.2 Mpc. Such radio galaxies are ideal candidates to study the Warm-Hot Intergalactic Medium (WHIM) because their radio lobes extend beyond the ISM and halos of their host galaxies, and into the tenuous IGM. We were able to measure redshifts for 9,076 galaxies. Radio imaging of each GRG, including high-sensitivity, wideband radio observations from the Australia Telescope Compact Array for 12 GRGs and host optical spectra (presented in a previous paper, Malarecki et al. 2013), is used in conjunction with the surrounding galaxy redshifts to trace large-scale structure. We find that the mean galaxy number overdensity in volumes of ~700 Mpc$^3$ near the GRG host galaxies is ~70 indicating an overdense but non-virialized environment. A Fourier component analysis is used to qu...

  5. Large Scale Obscuration and Related Climate Effects Workshop: Proceedings

    SciTech Connect (OSTI)

    Zak, B.D.; Russell, N.A.; Church, H.W.; Einfeld, W.; Yoon, D.; Behl, Y.K. [eds.

    1994-05-01T23:59:59.000Z

    A Workshop on Large Scale Obsurcation and Related Climate Effects was held 29--31 January, 1992, in Albuquerque, New Mexico. The objectives of the workshop were: to determine through the use of expert judgement the current state of understanding of regional and global obscuration and related climate effects associated with nuclear weapons detonations; to estimate how large the uncertainties are in the parameters associated with these phenomena (given specific scenarios); to evaluate the impact of these uncertainties on obscuration predictions; and to develop an approach for the prioritization of further work on newly-available data sets to reduce the uncertainties. The workshop consisted of formal presentations by the 35 participants, and subsequent topical working sessions on: the source term; aerosol optical properties; atmospheric processes; and electro-optical systems performance and climatic impacts. Summaries of the conclusions reached in the working sessions are presented in the body of the report. Copies of the transparencies shown as part of each formal presentation are contained in the appendices (microfiche).

  6. Eastern Gas Shales Project: West Virginia No. 7 well, Wetzel County. Phase III report, summary of laboratory analyses and mechanical characterization results

    SciTech Connect (OSTI)

    none,

    1981-12-01T23:59:59.000Z

    This summary presents a detailed characterization of the Devonian Shale occurrence in the EGSP-West Virginia No. 7 well. Information provided includes a stratigraphic summary and lithiology and fracture analyses resulting from detailed core examinations and geophysical log interpretations at the EGSP Core Laboratory. Plane of weakness orientations stemming from a program of physical properties testing at Michigan Technological University are also summarized; the results of physical properties testing are dealt with in detail in the accompanying report. The data presented was obtained from the study of approximately 533 feet of core retrieved from a well drilled in Wetzel county of north-central West Virginia.

  7. Eastern Gas Shales Project: Pennsylvania No. 5 well, Lawrence County. Phase III report, summary of laboratory analyses and mechanical characterization results

    SciTech Connect (OSTI)

    none,

    1981-10-01T23:59:59.000Z

    This summary presents a detailed characterization of the Devonian Shale occurrence in the EGSP-Pennsylvania No. 5 well. Information provided includes a stratigraphic summary and lithology and fracture analyses resulting from detailed core examinations and geophysical log interpretations at the EGSP Core Laboratory. Plane of weakness orientations stemming from a program of physical properties testing at Michigan Technology University are also summarized; the results of physical properties testing are dealt with in detail in the accompanying report. The data presented was obtained from the study of approximately 604 feet of core retrieved from a well drilled in Lawrence County of west-central Pennsylvania.

  8. Eastern Gas Shales Project: Pennsylvania No. 3 well, Erie County. Phase III report, summary of laboratory analyses and mechanical characterization results

    SciTech Connect (OSTI)

    none,

    1981-09-01T23:59:59.000Z

    This summary presents a detailed characterization of the Devonian Shale occurrence in the EGSP-Pennsylvania No. 3 well. Information provided includes a stratigraphic summary and lithology and fracture analyses resulting from detailed core examinations and geophysical log interpretations at the EGSP Core Laboratory. Plane of weakness orientations stemming from a program of physical properties testing at Michigan Technological University are also summarized; the results of physical properties testing are dealt with in detail in the accompanying report. This data presented was obtained from the study of approximately 422 feet of core retrieved from a well drilled in Erie County of north-western Pennsylvania.

  9. Eastern Gas Shales Project: Pennsylvania No. 1 well, McKean County. Phase III report, summary of laboratory analyses and mechanical characterization results

    SciTech Connect (OSTI)

    none,

    1981-10-01T23:59:59.000Z

    This summary presents a detailed characterization of the Devonian Shale occurrence in the EGSP-Pennsylvania No. 1 well. Information provided includes a stratigraphic summary and lithology and fracture analyses resulting from detailed core examinations and geophysical log interpretations at the EGSP Core Laboratory. Plane of weakness orientations stemming from a program of physical properties testing at Michigan Technological University are also summarized; the results of physical properties testing are dealt with in detail in the accompanying report. The data presented was obtained from the study of approximately 741 feet of core retrieved from a well drilled in MeKean County of north-central Pennsylvania.

  10. Eastern Gas Shales Project: Pennsylvania No. 4 well, Indiana County. Phase III report, summary of laboratory analyses and mechanical characterization results

    SciTech Connect (OSTI)

    none,

    1981-10-01T23:59:59.000Z

    This summary presents a detailed characterization of the Devonian Shale occurrence in the EGSP-Pennsylvania No. 4 well. Information provided includes a stratigraphic summary and lithology and fracture analyses resulting from detailed core examinations and geophysical log interpretations at the EGSP Core Laboratory. Plane of weakness orientations stemming from a program of physical properties testing at Michigan Technological University are also summarized; the results of physical properties testing are dealt with in detail in the accompanying report. The data presented was obtained from the study of approximately 891 feet of core retrieved from a well drilled in Indiana County of west-central Pennsylvania.

  11. FE-Funded Study Released on Key Factors Affecting China Shale...

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

    government gives priority to the development of China's shale gas sector to help fight air pollution and reduce reliance on natural gas imports; and The U.S. government supports...

  12. CLAY AND SHALE--2002 18.1 CLAY AND SHALE

    E-Print Network [OSTI]

    CLAY AND SHALE--2002 18.1 CLAY AND SHALE By Robert L. Virta Domestic survey data and tables were Roberts, international data coordinator. Companies in the United States mined six types of clays: ball clay, bentonite, common clay and shale, fire clay, fuller's earth, and kaolin. Ball clays consist

  13. CLAY AND SHALE--1999 18.1 CLAY AND SHALE

    E-Print Network [OSTI]

    CLAY AND SHALE--1999 18.1 CLAY AND SHALE By Robert L. Virta Domestic survey data and tables were Roberts, international data coordinator. The amount of clay sold or used by domestic producers in 1999. Production of ball clay, bentonite, common clay and shale, and fuller's earth increased, and production

  14. An Investigation of Regional Variations of Barnett Shale Reservoir Properties, and Resulting Variability of Hydrocarbon Composition and Well Performance 

    E-Print Network [OSTI]

    Tian, Yao

    2010-07-14T23:59:59.000Z

    In 2007, the Barnett Shale in the Fort Worth basin of Texas produced 1.1 trillion cubic feet (Tcf) gas and ranked second in U.S gas production. Despite its importance, controls on Barnett Shale gas well performance are poorly understood. Regional...

  15. Nineteenth oil shale symposium proceedings

    SciTech Connect (OSTI)

    Gary, J.H.

    1986-01-01T23:59:59.000Z

    This book contains 23 selections. Some of the titles are: Effects of maturation on hydrocarbon recoveries from Canadian oil shale deposits; Dust and pressure generated during commercial oil shale mine blasting: Part II; The petrosix project in Brazil - An update; Pathway of some trace elements during fluidized-bed combustion of Israeli Oil Shale; and Decommissioning of the U.S. Department of Energy Anvil Points Oil Shale Research Facility.

  16. POTENTIAL USES OF SPENT SHALE IN THE TREATMENT OF OIL SHALE RETORT WATERS

    E-Print Network [OSTI]

    Fox, J.P.

    2013-01-01T23:59:59.000Z

    study of retorted oil shale," Lawrence Livermore Laboratoryb) using columns of spent shale. REFERENCES Burnham, Alankinetics between and oil-shale residual carbon. 1. co Effect

  17. Spent Shale Grouting of Abandoned In-Situ Oil Shale Retorts

    E-Print Network [OSTI]

    Fox, J.P.; Persoff, P.

    1980-01-01T23:59:59.000Z

    Mineral Reactions in Colorado Oil Shale," Lawrence Livermore1978. of Decomposition of Colorado Oil Shale: II. LivermoreEffects Lawrence of Steam on Oil Shale Retorting: Livermore

  18. Large-Scale Spray Releases: Initial Aerosol Test Results

    SciTech Connect (OSTI)

    Schonewill, Philip P.; Gauglitz, Phillip A.; Bontha, Jagannadha R.; Daniel, Richard C.; Kurath, Dean E.; Adkins, Harold E.; Billing, Justin M.; Burns, Carolyn A.; Davis, James M.; Enderlin, Carl W.; Fischer, Christopher M.; Jenks, Jeromy WJ; Lukins, Craig D.; MacFarlan, Paul J.; Shutthanandan, Janani I.; Smith, Dennese M.

    2012-12-01T23:59:59.000Z

    One of the events postulated in the hazard analysis at the Waste Treatment and Immobilization Plant (WTP) and other U.S. Department of Energy (DOE) nuclear facilities is a breach in process piping that produces aerosols with droplet sizes in the respirable range. The current approach for predicting the size and concentration of aerosols produced in a spray leak involves extrapolating from correlations reported in the literature. These correlations are based on results obtained from small engineered spray nozzles using pure liquids with Newtonian fluid behavior. The narrow ranges of physical properties on which the correlations are based do not cover the wide range of slurries and viscous materials that will be processed in the WTP and across processing facilities in the DOE complex. Two key technical areas were identified where testing results were needed to improve the technical basis by reducing the uncertainty due to extrapolating existing literature results. The first technical need was to quantify the role of slurry particles in small breaches where the slurry particles may plug and result in substantially reduced, or even negligible, respirable fraction formed by high-pressure sprays. The second technical need was to determine the aerosol droplet size distribution and volume from prototypic breaches and fluids, specifically including sprays from larger breaches with slurries where data from the literature are scarce. To address these technical areas, small- and large-scale test stands were constructed and operated with simulants to determine aerosol release fractions and generation rates from a range of breach sizes and geometries. The properties of the simulants represented the range of properties expected in the WTP process streams and included water, sodium salt solutions, slurries containing boehmite or gibbsite, and a hazardous chemical simulant. The effect of anti-foam agents was assessed with most of the simulants. Orifices included round holes and rectangular slots. The round holes ranged in size from 0.2 to 4.46 mm. The slots ranged from (width Ś length) 0.3 Ś 5 to 2.74 Ś 76.2 mm. Most slots were oriented longitudinally along the pipe, but some were oriented circumferentially. In addition, a limited number of multi-hole test pieces were tested in an attempt to assess the impact of a more complex breach. Much of the testing was conducted at pressures of 200 and 380 psi, but some tests were conducted at 100 psi. Testing the largest postulated breaches was deemed impractical because of the large size of some of the WTP equipment. The purpose of this report is to present the experimental results and analyses for the aerosol measurements obtained in the large-scale test stand. The report includes a description of the simulants used and their properties, equipment and operations, data analysis methodology, and test results. The results of tests investigating the role of slurry particles in plugging of small breaches are reported in Mahoney et al. 2012a. The results of the aerosol measurements in the small-scale test stand are reported in Mahoney et al. (2012b).

  19. Large Scale Computing and Storage Requirements for Nuclear Physics Research

    SciTech Connect (OSTI)

    Gerber, Richard A.; Wasserman, Harvey J.

    2012-03-02T23:59:59.000Z

    IThe National Energy Research Scientific Computing Center (NERSC) is the primary computing center for the DOE Office of Science, serving approximately 4,000 users and hosting some 550 projects that involve nearly 700 codes for a wide variety of scientific disciplines. In addition to large-scale computing resources NERSC provides critical staff support and expertise to help scientists make the most efficient use of these resources to advance the scientific mission of the Office of Science. In May 2011, NERSC, DOE’s Office of Advanced Scientific Computing Research (ASCR) and DOE’s Office of Nuclear Physics (NP) held a workshop to characterize HPC requirements for NP research over the next three to five years. The effort is part of NERSC’s continuing involvement in anticipating future user needs and deploying necessary resources to meet these demands. The workshop revealed several key requirements, in addition to achieving its goal of characterizing NP computing. The key requirements include: 1. Larger allocations of computational resources at NERSC; 2. Visualization and analytics support; and 3. Support at NERSC for the unique needs of experimental nuclear physicists. This report expands upon these key points and adds others. The results are based upon representative samples, called “case studies,” of the needs of science teams within NP. The case studies were prepared by NP workshop participants and contain a summary of science goals, methods of solution, current and future computing requirements, and special software and support needs. Participants were also asked to describe their strategy for computing in the highly parallel, “multi-core” environment that is expected to dominate HPC architectures over the next few years. The report also includes a section with NERSC responses to the workshop findings. NERSC has many initiatives already underway that address key workshop findings and all of the action items are aligned with NERSC strategic plans.

  20. Inflationary tensor fossils in large-scale structure

    E-Print Network [OSTI]

    Emanuela Dimastrogiovanni; Matteo Fasiello; Donghui Jeong; Marc Kamionkowski

    2014-07-30T23:59:59.000Z

    Inflation models make specific predictions for a tensor-scalar-scalar three-point correlation, or bispectrum, between one gravitational-wave (tensor) mode and two density-perturbation (scalar) modes. This tensor-scalar-scalar correlation leads to a local power quadrupole, an apparent departure from statistical isotropy in our Universe, as well as characteristic four-point correlations in the current mass distribution in the Universe. So far, the predictions for these observables have been worked out only for single-clock models in which certain consistency conditions between the tensor-scalar-scalar correlation and tensor and scalar power spectra are satisfied. Here we review the requirements on inflation models for these consistency conditions to be satisfied. We then consider several examples of inflation models, such as non-attractor and solid inflation models, in which these conditions are put to the test. In solid inflation the simplest consistency conditions are already violated whilst in the non-attractor model we find that, contrary to the standard scenario, the tensor-scalar-scalar correlator probes directly relevant model-dependent information. We work out the predictions for observables in these models. For non-attractor inflation we find an apparent local quadrupolar departure from statistical isotropy in large-scale structure but that this power quadrupole decreases very rapidly at smaller scales. The consistency of the CMB quadrupole with statistical isotropy then constrains the distance scale that corresponds to the transition from the non-attractor to attractor phase of inflation to be larger than the currently observable horizon. Solid inflation predicts clustering fossils signatures in the current galaxy distribution that may be large enough to be detectable with forthcoming, and possibly even current, galaxy surveys.

  1. Large-Scale Data Challenges in Future Power Grids

    SciTech Connect (OSTI)

    Yin, Jian; Sharma, Poorva; Gorton, Ian; Akyol, Bora A.

    2013-03-25T23:59:59.000Z

    This paper describes technical challenges in supporting large-scale real-time data analysis for future power grid systems and discusses various design options to address these challenges. Even though the existing U.S. power grid has served the nation remarkably well over the last 120 years, big changes are in the horizon. The widespread deployment of renewable generation, smart grid controls, energy storage, plug-in hybrids, and new conducting materials will require fundamental changes in the operational concepts and principal components. The whole system becomes highly dynamic and needs constant adjustments based on real time data. Even though millions of sensors such as phase measurement units (PMUs) and smart meters are being widely deployed, a data layer that can support this amount of data in real time is needed. Unlike the data fabric in cloud services, the data layer for smart grids must address some unique challenges. This layer must be scalable to support millions of sensors and a large number of diverse applications and still provide real time guarantees. Moreover, the system needs to be highly reliable and highly secure because the power grid is a critical piece of infrastructure. No existing systems can satisfy all the requirements at the same time. We examine various design options. In particular, we explore the special characteristics of power grid data to meet both scalability and quality of service requirements. Our initial prototype can improve performance by orders of magnitude over existing general-purpose systems. The prototype was demonstrated with several use cases from PNNL’s FPGI and was shown to be able to integrate huge amount of data from a large number of sensors and a diverse set of applications.

  2. Oil shale: Technology status report

    SciTech Connect (OSTI)

    Not Available

    1986-10-01T23:59:59.000Z

    This report documents the status of the US Department of Energy's (DOE) Oil Shale Program as of the end of FY 86. The report consists of (1) a status of oil shale development, (2) a description of the DOE Oil Shale Program, (3) an FY 86 oil shale research summary, and (4) a summary of FY 86 accomplishments. Discoveries were made in FY 86 about the physical and chemical properties and behavior of oil shales, process chemistry and kinetics, in situ retorting, advanced processes, and the environmental behavior and fate of wastes. The DOE Oil Shale Program shows an increasing emphasis on eastern US oil shales and in the development of advanced oil shale processing concepts. With the award to Foster Wheeler for the design of oil shale conceptual plants, the first step in the development of a systems analysis capability for the complete oil shale process has been taken. Unocal's Parachute Creek project, the only commercial oil shale plant operating in the United States, is operating at about 4000 bbl/day. The shale oil is upgraded at Parachute Creek for input to a conventional refinery. 67 refs., 21 figs., 3 tabs.

  3. Climate impacts of a large-scale biofuels expansion

    E-Print Network [OSTI]

    Hallgren, Willow

    A global biofuels program will potentially lead to intense pressures on land supply and cause widespread transformations in land use. These transformations can alter the Earth climate system by increasing greenhouse gas ...

  4. Slow Radio-Frequency Processing of Large Oil Shale Volumes to Produce Petroleum-Like Shale Oil

    SciTech Connect (OSTI)

    Burnham, A K

    2003-08-20T23:59:59.000Z

    A process is proposed to convert oil shale by radio frequency heating over a period of months to years to create a product similar to natural petroleum. Electrodes would be placed in drill holes, either vertical or horizontal, and a radio frequency chosen so that the penetration depth of the radio waves is of the order of tens to hundreds of meters. A combination of excess volume production and overburden compaction drives the oil and gas from the shale into the drill holes, where it is pumped to the surface. Electrical energy for the process could be provided initially by excess regional capacity, especially off-peak power, which would generate {approx}3 x 10{sup 5} bbl/day of synthetic crude oil, depending on shale grade. The electricity cost, using conservative efficiency assumptions, is $4.70 to $6.30/bbl, depending on grade and heating rate. At steady state, co-produced gas can generate more than half the electric power needed for the process, with the fraction depending on oil shale grade. This would increase production to 7.3 x 10{sup 5} bbl/day for 104 l/Mg shale and 1.6 x 10{sup 6} bbl/day for 146 l/Mg shale using a combination of off-peak power and power from co-produced gas.

  5. Large-scale simulation of methane dissociation along the West Spitzbergen Margin

    SciTech Connect (OSTI)

    Reagan, M.T.; Moridis, G.J.

    2009-07-15T23:59:59.000Z

    Vast quantities of methane are trapped in oceanic hydrate deposits, and there is concern that a rise in the ocean temperature will induce dissociation of these hydrate accumulations, potentially releasing large amounts of methane into the atmosphere. The recent discovery of active methane gas venting along the landward limit of the gas hydrate stability zone (GHSZ) on the shallow continental slope west of Spitsbergen could be an indication of this process, if the source of the methane can be confidently attributed to dissociating hydrates. In the first large-scale simulation study of its kind, we simulate shallow hydrate dissociation in conditions representative of the West Spitsbergen margin to test the hypothesis that the observed gas release originated from hydrates. The simulation results are consistent with this hypothesis, and are in remarkable agreement with the recently published observations. They show that shallow, low-saturation hydrate deposits, when subjected to temperature increases at the seafloor, can release significant quantities of methane, and that the releases will be localized near the landward limit of the top of the GHSZ. These results indicate the possibility that hydrate dissociation and methane release may be both a consequence and a cause of climate change.

  6. Program for large-scale underground-coal-gasification tests

    SciTech Connect (OSTI)

    Hammesfahr, F.W.; Winter, P.L.

    1982-11-01T23:59:59.000Z

    The continuing development of underground coal gasification technology requires extended multi-module field programs in which the output gas is linked to surface usage. This effort was to appraise whether existing surface facilities in the utility, petroleum refinery, or natural gas industries could be used to reduce the cost of such an extended multi-module test and whether regional demand in areas having underground coal gasification coal resources could support the manufacture of transportation fuels from underground coal gasification gases. To limit the effort to a reasonable level but yet to permit a fair test of the concept, effort was focused on five states, Illinois, New Mexico, Texas, Washington, and Wyoming, which have good underground coal gasification reserves. Studies of plant distribution located 25 potential sites within 3 miles of the underground coal gasification amenable reserves in the five states. Distribution was 44% to utilities, 44% to refineries, and 12% to gas processing facilities. The concept that existing surface facilities, currently or potentially gas-capable, might contribute to the development of underground coal gasification technology by providing a low cost industrial application for the gas produced in a multi-module test appears valid. To further test the concept, three industries were reviewed in depth. These were the electric utility, natural gas, and petroleum industries. When looking at a fuel substitution of the type proposed, each industry had its special perspective. These are discussed in detail in the report.

  7. Comparison of the Acceptability of Various Oil Shale Processes

    SciTech Connect (OSTI)

    Burnham, A K; McConaghy, J R

    2006-03-11T23:59:59.000Z

    While oil shale has the potential to provide a substantial fraction of our nation's liquid fuels for many decades, cost and environmental acceptability are significant issues to be addressed. Lawrence Livermore National Laboratory (LLNL) examined a variety of oil shale processes between the mid 1960s and the mid 1990s, starting with retorting of rubble chimneys created from nuclear explosions [1] and ending with in-situ retorting of deep, large volumes of oil shale [2]. In between, it examined modified-in-situ combustion retorting of rubble blocks created by conventional mining and blasting [3,4], in-situ retorting by radio-frequency energy [5], aboveground combustion retorting [6], and aboveground processing by hot-solids recycle (HRS) [7,8]. This paper reviews various types of processes in both generic and specific forms and outlines some of the tradeoffs for large-scale development activities. Particular attention is given to hot-recycled-solids processes that maximize yield and minimize oil shale residence time during processing and true in-situ processes that generate oil over several years that is more similar to natural petroleum.

  8. Enhanced Microbial Pathways for Methane Production from Oil Shale

    SciTech Connect (OSTI)

    Paul Fallgren

    2009-02-15T23:59:59.000Z

    Methane from oil shale can potentially provide a significant contribution to natural gas industry, and it may be possible to increase and continue methane production by artificially enhancing methanogenic activity through the addition of various substrate and nutrient treatments. Western Research Institute in conjunction with Pick & Shovel Inc. and the U.S. Department of Energy conducted microcosm and scaled-up reactor studies to investigate the feasibility and optimization of biogenic methane production from oil shale. The microcosm study involving crushed oil shale showed the highest yield of methane was produced from oil shale pretreated with a basic solution and treated with nutrients. Incubation at 30 C, which is the estimated temperature in the subsurface where the oil shale originated, caused and increase in methane production. The methane production eventually decreased when pH of the system was above 9.00. In the scaled-up reactor study, pretreatment of the oil shale with a basic solution, nutrient enhancements, incubation at 30 C, and maintaining pH at circumneutral levels yielded the highest rate of biogenic methane production. From this study, the annual biogenic methane production rate was determined to be as high as 6042 cu. ft/ton oil shale.

  9. Radiochemistry Annex | EMSL

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

    shales. Consequently, the results from this work could aid predictions of shale caprock integrity in large-scale GCS, as well as methane transmissivity in enhanced gas recovery...

  10. Cell Isolation and Systems Analysis | EMSL

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

    shales. Consequently, the results from this work could aid predictions of shale caprock integrity in large-scale GCS, as well as methane transmissivity in enhanced gas recovery...

  11. Net Withdrawals of Natural Gas from Underground Storage (Summary...

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

    Gas Wells Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

  12. Natural Gas Withdrawals from Underground Storage (Annual Supply...

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

    Gas Wells Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

  13. Int. J. Oil, Gas and Coal Technology, Vol. 5, No. 1, 2012 1 Copyright 2012 Inderscience Enterprises Ltd.

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    production from shale formations. Examples of three case studies in Lower Huron and New Albany shale Reservoir Modelling of Oil and Gas Producing Shale Reservoirs; Case Studies, Int. J. Oil, Gas, and Coal Enterprises Ltd. Top-Down, Intelligent Reservoir Modeling of Oil and Gas Producing Shale Reservoirs; Case

  14. Solar retorting of oil shale

    DOE Patents [OSTI]

    Gregg, David W. (Morago, CA)

    1983-01-01T23:59:59.000Z

    An apparatus and method for retorting oil shale using solar radiation. Oil shale is introduced into a first retorting chamber having a solar focus zone. There the oil shale is exposed to solar radiation and rapidly brought to a predetermined retorting temperature. Once the shale has reached this temperature, it is removed from the solar focus zone and transferred to a second retorting chamber where it is heated. In a second chamber, the oil shale is maintained at the retorting temperature, without direct exposure to solar radiation, until the retorting is complete.

  15. A first large-scale flood inundation forecasting model

    SciTech Connect (OSTI)

    Schumann, Guy J-P; Neal, Jeffrey C.; Voisin, Nathalie; Andreadis, Konstantinos M.; Pappenberger, Florian; Phanthuwongpakdee, Kay; Hall, Amanda C.; Bates, Paul D.

    2013-11-04T23:59:59.000Z

    At present continental to global scale flood forecasting focusses on predicting at a point discharge, with little attention to the detail and accuracy of local scale inundation predictions. Yet, inundation is actually the variable of interest and all flood impacts are inherently local in nature. This paper proposes a first large scale flood inundation ensemble forecasting model that uses best available data and modeling approaches in data scarce areas and at continental scales. The model was built for the Lower Zambezi River in southeast Africa to demonstrate current flood inundation forecasting capabilities in large data-scarce regions. The inundation model domain has a surface area of approximately 170k km2. ECMWF meteorological data were used to force the VIC (Variable Infiltration Capacity) macro-scale hydrological model which simulated and routed daily flows to the input boundary locations of the 2-D hydrodynamic model. Efficient hydrodynamic modeling over large areas still requires model grid resolutions that are typically larger than the width of many river channels that play a key a role in flood wave propagation. We therefore employed a novel sub-grid channel scheme to describe the river network in detail whilst at the same time representing the floodplain at an appropriate and efficient scale. The modeling system was first calibrated using water levels on the main channel from the ICESat (Ice, Cloud, and land Elevation Satellite) laser altimeter and then applied to predict the February 2007 Mozambique floods. Model evaluation showed that simulated flood edge cells were within a distance of about 1 km (one model resolution) compared to an observed flood edge of the event. Our study highlights that physically plausible parameter values and satisfactory performance can be achieved at spatial scales ranging from tens to several hundreds of thousands of km2 and at model grid resolutions up to several km2. However, initial model test runs in forecast mode revealed that it is crucial to account for basin-wide hydrological response time when assessing lead time performances notwithstanding structural limitations in the hydrological model and possibly large inaccuracies in precipitation data.

  16. Large Scale Computing and Storage Requirements for High Energy Physics

    SciTech Connect (OSTI)

    Gerber, Richard A.; Wasserman, Harvey

    2010-11-24T23:59:59.000Z

    The National Energy Research Scientific Computing Center (NERSC) is the leading scientific computing facility for the Department of Energy's Office of Science, providing high-performance computing (HPC) resources to more than 3,000 researchers working on about 400 projects. NERSC provides large-scale computing resources and, crucially, the support and expertise needed for scientists to make effective use of them. In November 2009, NERSC, DOE's Office of Advanced Scientific Computing Research (ASCR), and DOE's Office of High Energy Physics (HEP) held a workshop to characterize the HPC resources needed at NERSC to support HEP research through the next three to five years. The effort is part of NERSC's legacy of anticipating users needs and deploying resources to meet those demands. The workshop revealed several key points, in addition to achieving its goal of collecting and characterizing computing requirements. The chief findings: (1) Science teams need access to a significant increase in computational resources to meet their research goals; (2) Research teams need to be able to read, write, transfer, store online, archive, analyze, and share huge volumes of data; (3) Science teams need guidance and support to implement their codes on future architectures; and (4) Projects need predictable, rapid turnaround of their computational jobs to meet mission-critical time constraints. This report expands upon these key points and includes others. It also presents a number of case studies as representative of the research conducted within HEP. Workshop participants were asked to codify their requirements in this case study format, summarizing their science goals, methods of solution, current and three-to-five year computing requirements, and software and support needs. Participants were also asked to describe their strategy for computing in the highly parallel, multi-core environment that is expected to dominate HPC architectures over the next few years. The report includes a section that describes efforts already underway or planned at NERSC that address requirements collected at the workshop. NERSC has many initiatives in progress that address key workshop findings and are aligned with NERSC's strategic plans.

  17. Method for retorting oil shale

    DOE Patents [OSTI]

    Shang, Jer-Yu; Lui, A.P.

    1985-08-16T23:59:59.000Z

    The recovery of oil from oil shale is provided in a fluidized bed by using a fluidizing medium of a binary mixture of carbon dioxide and 5 steam. The mixture with a steam concentration in the range of about 20 to 75 volume percent steam provides an increase in oil yield over that achievable by using a fluidizing gas of carbon dioxide or steam alone when the mixture contains higher steam concentrations. The operating parameters for the fluidized bed retorted are essentially the same as those utilized with other gaseous fluidizing mediums with the significant gain being in the oil yield recovered which is attributable solely to the use of the binary mixture of carbon dioxide and steam. 2 figs.

  18. Water in Alberta With Special Focus on the Oil and Gas Industry

    E-Print Network [OSTI]

    Gieg, Lisa

    1 Water in Alberta With Special Focus on the Oil and Gas Industry (Education Paper) Seyyed Ghaderi ................................................................................................................................18 Shale Gas ................................................................................................................................................19 How much water is used in deep shale gas development

  19. This book is designed to be a comprehensive treatment of parallel al gorithms for optimal control of large scale linear and bilinear systems.

    E-Print Network [OSTI]

    Gajic, Zoran

    ­ tion column, steam power system, hydro power plant, chemical plants, gas absorber, supported beam the power and usefulness of the synchronous parallel algorithms for optimal control of large scale linearPreface This book is designed to be a comprehensive treatment of parallel al­ gorithms for optimal

  20. Spent Shale Grouting of Abandoned In-Situ Oil Shale Retorts

    E-Print Network [OSTI]

    Fox, J.P.; Persoff, P.

    1980-01-01T23:59:59.000Z

    for the grout. SPENT SHALE Oil shale, which is a low-gradeMineral Reactions in Colorado Oil Shale," Lawrence Livermore1978. of Decomposition of Colorado Oil Shale: II. Livermore