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Tim Klett
303.236.5841

Reserve Growth

The Central Energy Team has completed numerous oil and gas resource assessments and continues research on the contribution and significance of reserve (field) growth.

• Field growth is the increase in total proved reserves of an existing field through time. This increase is based upon geological and engineering data with reasonable certainty to be recoverable with existing economic and operating conditions

• Field growth occurs in almost all petroleum provinces in the world and is considered the most important source for additional reserves in the United States
   
• Identified resources exceeding the proved reserves that have been added to existing fields by a variety of methods including: field extension, field revision, improved recovery efficiency, improved reservoir characterization, or the addition of new pools or reservoirs

Selected Reserve Growth Publications

Crovelli, R.A., and Schmoker, J.W., 2001, Probabilistic Method for Estimating Future Growth of Oil and Gas Reserves, in Dyman, T. S., Schmoker, J.W., and Verma, M., eds., Geologic, Engineering, and Assessment Studies of Reserve Growth: U.S. Geological Survey Bulletin 2172-C, 12 p.
http://pubs.usgs.gov/bul/b2172-c/

Dyman, T. S., and Schmoker, J.W., 2003, Well-Production Data and Gas-Reservoir Heterogenity--Reserve Growth Applications, in Dyman, T. S., Schmoker, J.W., and Verma, M, eds., Geologic, Engineering, and Assessment Studies of Reserve Growth: U.S. Geological Survey Bulletin 2172-E, 9 p.
http://pubs.usgs.gov/bul/b2172-e/

Klett, T.R., 2003, Graphical Comparison of Reserve--Growth Models for Conventional Oil and Gas Accumulations, in Dyman, T. S., Schmoker, J.W., and Verma, M.K., eds., Geologic Engineering and Assessment Studies of Reserve Growth: U.S. Geological Survey Bulletin 2172-F, Version 1, p. F1-F63. [CD-ROM].
http://pubs.usgs.gov/bul/b2172-f/

Schmoker, J.W., 2000, Reserve growth effects on estimates of oil and natural gas resources: U.S. Geological Survey Fact Sheet FS-119-00, 2 p.
http://pubs.usgs.gov/fs/fs119-00/

Schmoker, J.W., and Attanasi, E.D., 1996, The Importance of Reserve Growth to the Nation's Supply of Natural Gas: U.S. Geological Survey Fact Sheet FS-202-96, 2 p.
http://pubs.usgs.gov/fs/fs-202-96/

Schmoker, J.W., and Dyman, T.S., 2001, Changing Perceptions of United States Natural-Gas Resources as Shown by Successive U.S. Department of the Interior Assessments, Chapter B, in Dyman, T. S., Schmoker, J.W., and Verma, M., eds., Geologic, Engineering, and Assessment Studies of Reserve Growth: U.S. Geological Survey Bulletin 2172-B, 8 p.
http://pubs.usgs.gov/bul/b2172-b/

Schmoker, J.W., Dyman, T.S., and Verma, M., 2001, Introduction to Aspects of Reserve Growth, Chapter A, in Dyman, T. S., Schmoker, J.W., and Verma, M., eds., Geologic, Engineering, and Assessment Studies of Reserve Growth: U.S. Geological Survey Bulletin 2172-A, 2 p. [CD- ROM].
http://pubs.usgs.gov/bul/b2172-a/

Stanley , R.G., 2001, Geologic constraints on the upper limits of reserve growth: U.S. Geological Survey Open-File Report 01-265, 7 p.
http://geopubs.wr.usgs.gov/open-file/of01-265/

Tennyson, M.E., 2005, Growth History of Oil Reserves in Major California Oilfields During the Twentieth Century, in Dyman, T. S., Schmoker, J.W., and Verma, M., eds., Geologic, Engineering, and Assessment Studies of Reserve Growth: U.S. Geological Survey Bulletin 2172-H, 26 p.
http://pubs.usgs.gov/bul/b2172-h/

Verma, M.K., 2004, Modified Arrington Method for Calculating Reserve Growth--A New Model for United States Oil and Gas Fields, in Dyman, T. S., Schmoker, J.W., and Verma, M.K., eds., Geologic, Engineering, and Assessment Studies of Reserve Growth: U.S. Geological Survey Bulletin 2172-D, 14 p.
http://pubs.usgs.gov/bul/b2172-d/

Verma, M.K., 2005, Assessing the Potential for Future Reserve Growth in the Western Canadian Sedimentary Basin, in The Conference Board of Canada Meeting, Calgary, Alberta, May 24-25, 2005: U.S. Geological Survey Open-File Report 2005-1179, 38 slides.
http://pubs.usgs.gov/of/2005/1179/

Verma, M.K., 2000, The significance of field growth and the role of enhanced oil recovery: U.S. Geological Survey Fact Sheet FS-115-00, 4 p.
http://pubs.usgs.gov/fs/fs-0115-00/