Assessment of undiscovered oil and gas resources of the West Siberian Basin Province, Russia, 2010

World Petroleum Resources Project

The U.S. Geological Survey, using a geology-based assessment methodology, estimated mean volumes of technically recoverable, conventional, undiscovered petroleum resources at 8 billion barrels of crude oil, 670 trillion cubic feet of natural gas, and 21 billion barrels of natural gas liquids for the West Siberian Basin Province.

Figure 1. West Siberian Basin Province (red line), Russia. Three assessment units (AU) were defined in this study: Northern West Siberian Onshore Gas AU, South Kara Sea Offshore AU, and Southern West Siberian Reservoirs AU. Blue line represents the boundary between the Northern West Siberian Mesozoic Composite total petroleum system (TPS) and the Southern West Siberian Mesozoic Composite TPS.

Assessment Results

The results of the quantitative assessment of undiscovered, technically recoverable, conventional oil and gas resources in the West Siberian Basin Province are listed in table 1. The total estimated means for undiscovered conventional oil and gas resources are 8,000 million barrels of oil (MMBO), 670,144 billion cubic feet of natural gas (BCFG), and 20,836 million barrels of natural gas liquids (MMBNGL). Of these volumes, the Northern West Siberian Onshore Gas AU accounts for 1,601 MMBO, 40,663 BCFG, and 1,181 MMBNGL; the South Kara Sea Offshore AU accounts for 2,507 MMBO, 622,222 BCFG, and 19,479 MMBNGL; and the Southern West Siberian Reservoirs AU accounts for 3,892 MMBO, 7,259 BCFG, and 176 MMBNGL. The large estimate for undiscovered gas in the South Kara Sea AU reflects the exploration immaturity compared to the Northern West Siberian Onshore Gas and Southern West Siberian Reservoirs AUs.

References Cited

Ulmishek, G.F., 2000, West Siberia Basin—Geologic Province 1174, in U.S. Geological Survey World Energy Assessment Team, U.S. Geological Survey World Petroleum Assessment 2000—description and results: U.S. Geological Survey Digital Data Series DDS–60, four CD–ROM set, Disk 1.

Ulmishek, G.F., 2003, Petroleum geology and resources of the West Siberian Basin, Russia: U.S. Geological Survey Bulletin 2201–G, 49 p.

For Further Information

Publications detailing the geology and the methodology for the West Siberian Basin Province and assessment results are available at the USGS Central Energy Resources Science Center web site, http:// energy.cr.usgs.gov/oilgas/.

West Siberian Basin Province Assessment Team

T.R. Klett (tklett@usgs.gov), Christopher J. Schenk, Kenneth J. Bird, Michael E. Brownfield, Ronald R. Charpentier, Troy A. Cook, Donald L. Gautier, David W. Houseknecht, Thomas E. Moore, Mark J. Pawlewicz, Janet K. Pitman, Richard M. Pollastro, and Marilyn E. Tennyson.

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