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《Well Logging Technology》 2014-02
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Split-step Fourier Migration in Remote Exploration Acoustic Reflection Imaging Logging

XIAO Chengwen;LI Junxiao;WU Xingneng;XU Ming;ZHANG Chengsen;WANG Guiqing;TAO Guo;Research Institute of Exploration and Development,Tarim Oilfield Company,PetroChina;College of Geophysics and Information Engineering,China University of Petroleum;Logging Branch of CNPC Bohai Drilling Engineering CO.LTD.;  
As a newly developed well logging technique,remote exploration acoustic reflection imaging logging reveals great advantages for detecting near borehole fractures and vugs because of its high vertical resolution compared with seismic exploration and deep lateral detection depth compared with conventional acoustic logging,so,it can evaluate the complex and hidden reservoir.The effective migration imaging algorithm is the key of acoustic reflection imaging logging data application,proposed is split-step Fourier migration(SSF)in remote exploration acoustic reflection imaging logging to process migration images.Based on the SSF in seismic exploration,the method is improved in acoustic logging,it has no dip angle limitation,is free of frequency dispersion,and is adaptable to moderate fluctuation of the velocity model,which makes it possible for effectively detecting near bore hole geological structures.In this paper,the synthetic model,water tank data as well as the field data have been used to demonstrate the validity and effectiveness of SSF in detecting near borehole structures.
【CateGory Index】: P631.81
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