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《Chinese Journal of Geophysics》 2018-03
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State of the art and applications of the Multi-Component seismic processing technology in CNOOC

LI WeiXin;CUI JiongCheng;WU WenLai;LIU YiFeng;XIA QingLong;SHI Ying;JIANG NanSen;HUANG XiaoGang;ZHANG YunPeng;XUE DongChuan;CNOOC Research Institute Co.Ltd.;CNOOC International Limited;China United Coalbed Methane Corp.Ltd.;China Narional Offshore Oil Corporation;China Bluechemical Ltd.;  
At the end of last century,2 D3 Cseismic technology was experimented successfully in Nanhai offshore gas-oil exploration by China National Offshore Oil Corporation(CNOOC).More than 10 years passed,CNOOC has further acquired 3 D multi-component OBC seismic data in different offshore gas-oil basins.Except dual-sensor stacking of P and Z components,largeamounts of horizontal component data don′t be used due to the difficulties to process the 3 D converted waves effectively.Consequently,CNOOC funded a key technical research about 3 D multi-component seismic data processing in the periodof"12 th Five-Year Plan Project".Aiming at the problems caused by vector characteristic of seismic wave field,asymmetric ray path of the converted wave and multiple time-scale of two-way travel time,we have successfully developed techniques involved in the vectorization pre-processing,velocity modeling of the converted wave,pre-stacking time migration,and so on.Meanwhile,all these modules have been integrated into a relatively independent software system,elastic wave imaging(EWI).After successful 3 D4 COBC seismic data processing in different areas,an applicable processing flow of marine 3 D multicomponent seismic data is established.While,compared with the matured P-wave processing technology,multi-component seismic processing technologies are still on the road of ongoing improvement.
【Fund】: 中海油攻关项目“三维转换波地震处理关键技术研究和模块研制”(CRI2013RCPS0102CCN);; 国家自然科学基金项目(41425017)的联合资助
【CateGory Index】: P631.4
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