| With the development of oil and gas exploration and development,Large area seismic exploration has become an important way of exploration.At present,the 3D seismic exploration in the target area has been basically covered by the main oil producing areas.Therefore,the 3D seismic data processing existing,not only can avoid repeated exploration costs a lot of input,and can realize the unification of regional geological understanding of the law,to further meet the geological demands of oilfield development,which is of great significance.The Gux area located in Gulong sag in Songliao Basin,is an important production potential area of the Western peripheral area of Daqing Oilfield.Since 90 s,a number of 3D seismic exploration tasks have been completed in the area.With the development of oil and gas exploration and development in oil field,the existing research results can not meet the needs of development tasks.This time in Gux area target layer 3D prestack re contiguous old data processing research,processing of seismic data block consists of three seismic acquisition area,including 3D area ln collected in 1995,TLH 3D survey collected in 2003,2012 acquisition of PXB three dimensional area.As a result of the acquisition of the annual construction of large span in the acquisition,block factors,SNR,waveform,difference of energy etc,is difficult to carry out geological law of the whole.In this research area to carry out 3D seismic processing technology research and application,application of micro logging statics and refraction tomographic static correction technology of static correction combination,prestack comprehensive fidelity denoising technology,surface consistent amplitude compensation technology,by the technology of surface consistent deconvolution,wavelet shaping technology,prestack time migration technology,formed a set of suitable for the area of the joint processing technology,provides reliable data for accurate implementation of regional tectonic and reservoir identification. |
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