消除海底电缆双检地震资料中的鸣震干扰
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摘要
对于海上拖缆地震勘探而言,压制鸣震干扰一般可采用鸣震滤波器或预测反褶积的方法,当海底反射系数变化较大时,则无法有效压制鸣震干扰;而对于海底电缆的双检(水检和陆检)地震勘探而言,则可以采用水检与陆检资料求得海底反射系数,并根据反射系数构建水检与陆检的最佳组合,从而达到压制鸣震干扰的目的。
For marine streamer seismic exploration,the singing filter or predictive deconvolution is generally used for suppression of singing interference,but cannot suppress singing interference effectively when the change of reflectivity on ocean bottom is large.For OBC dual-geophone(water hydrophone and land geophone) seismic exploration,the water hydrophone and land geophone can be used for getting reflectivity on ocean bottom,and the goal suppressing singing interference can be achieved by constructing optimum array of water hydrophone and land geophone according to reflectivity.
For marine streamer seismic exploration,the singing filter or predictive deconvolution is generally used for suppression of singing interference,but cannot suppress singing interference effectively when the change of reflectivity on ocean bottom is large.For OBC dual-geophone(water hydrophone and land geophone) seismic exploration,the water hydrophone and land geophone can be used for getting reflectivity on ocean bottom,and the goal suppressing singing interference can be achieved by constructing optimum array of water hydrophone and land geophone according to reflectivity.
引文
[1]Fred J B.Dual-sensor OBC technology.The LeadingEdge,1997,16(1):45~51
[2]Brian H H et al.Applications of OBC recording.TheLeading Edge,2000,19(4):382~391
[2]Brian H H et al.Applications of OBC recording.TheLeading Edge,2000,19(4):382~391
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