发明名称 |
METHODS AND SYSTEMS FOR CORRECTION OF STREAMER-DEPTH BIAS IN MARINE SEISMIC SURVEYS |
摘要 |
Computational systems and methods, to be carried out by the computational systems for determining streamer-depth bias during exploration-seismology experiments are disclosed. An exploration-seismology vessel tows a number of streamers that form a smoothly varying data acquisition surface located beneath a fluid surface. In one aspect of this disclosure, the method determines a set of image points that represent a profile of the fluid surface above each streamer. The image points are determined based on pressure and velocity wavefields measured at dual sensors of the streamer. The method then determines an elevation parameter of the image points that minimizes DC offset in a spectral domain of the image points. The elevation parameter corresponds to the streamer-depth bias and can be used to correct for the streamer-depth bias in subsequent calculations of a fluid-surface profile.
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申请公布号 |
US2013208565(A1) |
申请公布日期 |
2013.08.15 |
申请号 |
US201213369895 |
申请日期 |
2012.02.09 |
申请人 |
ORJI OKWUDILI;SOELLNER WALTER;PGS GEOPHYSICAL AS |
发明人 |
ORJI OKWUDILI;SOELLNER WALTER |
分类号 |
G01V1/38 |
主分类号 |
G01V1/38 |
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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