发明名称 |
SPECTRAL DECOMPOSITION FOR SEISMIC INTERPRETATION |
摘要 |
The present invention is directed generally toward a method of processing seismic data to provide improved quantification and visualization of subtle seismic thin bed tuning effects and other sorts of lateral rock discontinuities. A reflection from a thin bed has a characteristic expression in the frequency domain that is indicative of the thickness of the bed: the reflection has a periodic sequence of notches in its amplitude spectrum, with the notches being spaced a distance apart that is inversely proportional to the temporal thickness of the thin bed. Further, this characteristic expression may be used to track thin bed reflections through a 3-D volume and estimate their thicknesses and lateral extent. The usefulness of this invention is enhanced by a novel method of frequency domain whitening that emphasizes the geologic information present within the spectrum. Although the present invention is preferentially applied to a 3-D seismic volume, it is alternatively applied to any collection of spatially related seismic traces. |
申请公布号 |
CA2359579(C) |
申请公布日期 |
2013.04.23 |
申请号 |
CA20002359579 |
申请日期 |
2000.01.13 |
申请人 |
BP CORPORATION NORTH AMERICA INC. |
发明人 |
PARTYKA, GREGORY A.;GRIDLEY, JAMES M.;MARFURT, KURT J.;KIRLIN, R. LYNN |
分类号 |
G01V1/32;G01V1/30 |
主分类号 |
G01V1/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|