Research And Application Of Seismic Data Processing Technology In Gobi Gravel Area In Western China

The seismic data of Gobi conglomerate area in western China have large change in the velocity and thickness of gravel area,which causes the static correction of long wave length.The data have strong scattering interference.The image of underground data in Gobi conglomerate area is difficult.These problems have become the technical bottleneck for the development of seismic exploration in the western region.It is necessary to study some targeted processing techniques to improve the imaging accuracy of Gobi breccia and Carboniferous data.Based on previous studies and previous studies,the seismic data of each typical block in the West is collected,which is divided into 3 different zones: weathering gravel area,premountain gravel area and plain Gobi area.Carrying out wave field characteristic analysis,scattering wave formation mechanism,near surface calibration processing technology,prestack depth migration imaging and other technologies for complex surface seismic data of Gobi gravel,forming a series of seismic data processing techniques more suitable for Gobi gravel region in Western Gobi to achieve complex structure and Carboniferous stratigraphy in Western Gobi gravel region and providing important technical support for current Western exploration,It is of great practical significance to the exploration and development of the West and to the increase of the production.