发明名称 |
Method for full-bandwidth source deghosting of marine seismic streamer data |
摘要 |
<p>Seismic data recorded in a marine streamer are obtained, sorted as a common receiver gather. A complex Laplace frequency parameter is used to transform the seismic data from a space-time domain to a spectral domain. An iterative conjugate gradient scheme, using a physically-based preconditioner, is applied to the transformed seismic data, to provide a least squares solution to a normal set of equations for a source deghosting system of equations. The solution is inverse-transformed back to a space-time domain to provide source deghosted seismic data, which is useful for imaging the earth's subsurface.
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申请公布号 |
EP2330443(A3) |
申请公布日期 |
2012.10.10 |
申请号 |
EP20100193868 |
申请日期 |
2010.12.06 |
申请人 |
PGS GEOPHYSICAL AS |
发明人 |
VAN BORSELEN, ROALD G.;RIYANTI, CHRISTINA D.;PAGE, CHRISTOPHER P.;FOKKEMA, JACOB T.;VAN DEN BERG, PETER M. |
分类号 |
G01V1/36;G01V1/38 |
主分类号 |
G01V1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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