深水地震资料特性及相关处理技术探析
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摘要
根据基本理论,结合实际地震资料处理实践,总结分析了深水地震资料在地震波振幅与速度、多次波的复杂性、地层各向异性及崎岖海底的影响等方面的特性;针对深水地震资料的特性,对振幅补偿、冷水校正、各向异性动校正、多次波压制和崎岖海底成像等深水地震资料处理关键技术进行了分析研究。
Based on the basic seismic theory and combined with the actual seismic data processing,characteristics of deep-water seismic data are summarized in amplitude,velocity,complicated multiple,anisotropy of formation,rough seafloor effect,etc.Aiming at these characteristics of deep-water seismic data,several key processing techniques are analyzed and researched,including amplitude compensation,cold water statics,anisotropic dynamic correction,multiple suppression and rough seafloor imaging.
Based on the basic seismic theory and combined with the actual seismic data processing,characteristics of deep-water seismic data are summarized in amplitude,velocity,complicated multiple,anisotropy of formation,rough seafloor effect,etc.Aiming at these characteristics of deep-water seismic data,several key processing techniques are analyzed and researched,including amplitude compensation,cold water statics,anisotropic dynamic correction,multiple suppression and rough seafloor imaging.
引文
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[10]陈礼,葛勇.深水崎岖海底地震资料叠前深度偏移的必要性[J].中国海上油气,2005,17(1):12-15.
[2]BERTRAND A,MACBETH C.Seawater velocity variationsand real-time reservoir monitoring[J].The Leading Edge,2003,22(4):351-355.
[3]王卫强,王东晓,齐义泉.南海表层水温年际变化的大尺度特征[J].海洋学报,2000,22(4):8-16.
[4]BRIAN B.Deepwater problems around the world[J].The LeadingEdge,1999,18(4):488-494.
[5]NEWMAN P.Divergence effects in a layered earth[J].Geo-physics,1973,38(3):481-488.
[6]SCHULTZ P S,LAU A.Poststack estimation of three-dimen-sional crossline statics[J].Geophysics,1984,49(3):227-236.
[7]ALKHALIFAH T,TSVANKIN I.Velocity analysis for transverse-ly isotropic media[J].Geophysics,1995,60(5):1550-1566.
[8]BEVC D.Flooding the topography:wave-equation datuming of landdata with rugged acquisition topography[J].Geophysics,1997,62(5):1558-1569.
[9]常旭,刘伊克,杜向东,等.深水崎岖海底地震数据成像方法与应用[J].地球物理学报,2008,51(1):228-234.
[10]陈礼,葛勇.深水崎岖海底地震资料叠前深度偏移的必要性[J].中国海上油气,2005,17(1):12-15.
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