Interval velocity analysis using wave field continuation (in Chinese)
Journal Article
·
· Shiyou Diqiu Wuli Kantan (Oil Geophysical Prospecting); (China)
OSTI ID:6945301
- Second Geological Survey Div., Bureau of Oil Geophysical Prospecting, Kaifeng City, Henan Province (China)
In this paper, the author proposes a new interval velocity inversion method which, based on wave field continuation theory and fuzzy decision theory, uses CMP seismic gathers to automatically estimate interval velocity and two-way travel time in layered medium. The interval velocity calculated directly from wave field continuation is not well consistent with that derived from VSP data, the former is usually higher than the latter. Three major factors which influence the accuracy of interval velocity from wave field continuation are corrected, so that the two kinds of interval velocity are well consistent. This method brings better interval velocity, adapts weak reflection waves and resists noise well. It is a feasible method.
- OSTI ID:
- 6945301
- Journal Information:
- Shiyou Diqiu Wuli Kantan (Oil Geophysical Prospecting); (China), Journal Name: Shiyou Diqiu Wuli Kantan (Oil Geophysical Prospecting); (China) Vol. 27:5; ISSN 1000-7210; ISSN SDWKEP
- Country of Publication:
- United States
- Language:
- Chinese
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