U.S. Shale Gas Resources, Reserves and $$$
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U.S. Shale Gas Resources, Reserves and $$$. John B. Curtis Potential Gas Agency Colorado School of Mines. Location of U.S Shale Gas Plays. U.S. Energy Information Agency, March 2010. The Resource Pyramid. Conventional Reservoirs: Small Volumes, Easy to Develop. Oil. Gas. - PowerPoint PPT Presentation
Transcript of U.S. Shale Gas Resources, Reserves and $$$
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U.S. Shale GasResources, Reserves and $$$John B. CurtisPotential Gas AgencyColorado School of Mines
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Location of U.S Shale Gas PlaysU.S. Energy Information Agency, March 2010
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(S. Sonnenberg, CSM)
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Shale Gas Annual Production and Energy Information Administration (EIA) ForecastEnCana
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Targeted Research $150 Million
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Acquisitions >$50 BillionSource: Trollart.com Ray Troll
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Resource Development >$15 BillionSource:AAPGSource:AAPGSource:chiefoiland gas.com
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Hydrocarbons From Shale Never Say Die
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Shale Gas Reservoir MechanismsU.S. DOE
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Exploration ConsiderationsNatural fractures - Friend or Foe?Facies changes - greater permeabilityKerogen type - I,II,IIS,IIIMicrobial or thermogenic gas?Thermal maturation historyMWD - especially w/ gas isotopes
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Some Elements of a Successful Shale Gas Play
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Potential Supply of Natural Gas in the United StatesReport of thePotential Gas Committee(December 31, 2008)
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Regional Resource AssessmentData source: Potential Gas Committee (2009)Traditional1,673.4 TcfCoalbed 163.0 TcfTotal U.S.1,836.4 Tcf353.517.3455.23.424.016.6193.857.051.32.6274.97.5374.451.9
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PGC Resource Assessments, 1990-2008Data source: Potential Gas Committee (2009)Total Potential Gas Resources (mean values)
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Possible Constraints on Future Gas Supply
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Potential Gas Agency
Low-magnification view exhibits darker, more carbonaceous mudstone texture. Thinly laminated siliceous/argillaceous matrix hosts a mix of organic material, microcrystalline clay, silica, angular to subrounded silt, micromicas, phosphatic debris, and microfossil fragments. White, patchy chert is primarily recrystallized biotic components, especially forams and radiolarians (arrows). Magenta epoxy highlights an induced, layer-parallel microfracture. (Plane-polarized light. Scale bar = 0.5 mm) *The PGC consists of 145 volunteer geologists and engineers who assess the amount of remaining U.S. natural gas resources every two years. The Committee has been completing these assessments since 1964.
The (December 31, 2008) refers to the last data collected, i.e., drilling, production, geologic and geophysical data were used that were available up to that date. The analyses are then completed and the report is published the following year.The members that complete the assessment use public and private data and appropriate methodologies to provide a geological look at our natural gas endowment. They are selected for their expertise in working the appropriate geological basins.
