An evaluation of the U.S. Geological Survey World Petroleum Assessment 2000
American Association of Petroleum Geologists Bulletin
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Abstract
This study compares the additions to conventional crude oil and natural gas reserves as reported from January 1996 to December 2003 with the estimated undiscovered and reserve-growth volumes assessed in the U.S. Geological Survey World Petroleum Assessment 2000, which used data current through 1995. Approximately 28% of the estimated additions to oil reserves by reserve growth and approximately 11% of the estimated undiscovered oil volumes were realized in the 8 yr since the assessment (27% of the time frame for the assessment). Slightly more than half of the estimated additions to gas reserves by reserve growth and approximately 10% of the estimated undiscovered gas volumes were realized. Between 1995 and 2003, growth of oil reserves in previously discovered fields exceeded new-field discoveries as a source of global additions to reserves of conventional oil by a ratio of 3:1. The greatest amount of reserve growth for crude oil occurred in the Middle East and North Africa, whereas the greatest contribution from new-field discoveries occurred in sub-Saharan Africa. The greatest amount of reserve growth for natural gas occurred in the Middle East and North Africa, whereas the greatest contribution from new-field discoveries occurred in the Asia Pacific region. On an energy-equivalent basis, volumes of new gas-field discoveries exceeded new oil-field discoveries. Copyright ?? 2005. The American Association of Petroleum Geologists. All rights reserved.
Suggested Citation
Klett, T., Gautier, D.L., Ahlbrandt, T., 2005, An evaluation of the U.S. Geological Survey World Petroleum Assessment 2000: American Association of Petroleum Geologists Bulletin, v. 89, no. 8, p. 1033-1042, https://doi.org/10.1306/04060504105.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | An evaluation of the U.S. Geological Survey World Petroleum Assessment 2000 |
| Series title | American Association of Petroleum Geologists Bulletin |
| DOI | 10.1306/04060504105 |
| Volume | 89 |
| Issue | 8 |
| Year Published | 2005 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | American Association of Petroleum Geologists Bulletin |
| First page | 1033 |
| Last page | 1042 |