Application of 5D regularization in seismic data processing
Wang Wei1, Chen Shuangting1, Wang Baobin2, Zeng Qingqin1
1. Data Processing Center, GRI, BGP Inc., CNPC, Zhuozhou, Hebei 072750, China; 2. Research & Development Center, BGP Inc., CNPC, Zhuozhou, Hebei 072750, China
Abstract：With the hydrocarbon exploration increasing development,geological targets to be found are more and more complex,which requires more accurate acquired seismic data and better quality seismic imaging.However field seismic data acquisition cannot achieve the real regular space sampling.This leads to space aliasing,acquisition footprints and migration smiles.The five dimensions (5D) regularization based on space coordinates make full use of the 5D information,solves the data acquisition problem by interpolating source lines,shot points,receiver lines,and receiver points.This method can increase the density of shot gathers,improve the attributes of CMP bins,solve the problem of footprint caused by acquisition,and effectively suppress noise and spatial aliasing.Processing examples shows that 5D regularization can eliminate acquisition footprints,weaken spatial aliasing,and enhance event continuity compared with conventional 3D regularization.
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