Experimental Analysis Of Seismic Acquisition Geometry Using Synthetic Data

In the structure of the complex background,improving the seismic exploration accuracy of thin interbedded reservoirs has always been an important research topic in exploration and development.Theoretically,the high-density and broad-azimuth seismic acquisition technology can greatly improve the seismic exploration under complicated structural background,but its exploration costs have increased dramatically.In practice,it is generally necessary to find the right balance between cost and effectiveness.The main goal of this paper is to investigate and analyze the influence of different acquisition geometry on the accuracy of seismic exploration in complex thin interbeds based on three-dimensional model data.Based on the actual geological characteristics of Dagang oilfield,a complex thin-bedded geological model was designed.The staggered-grid finite difference method was used to simulate the prestack wavefield,different acquisition geometry were used for prestack migration imaging.Based on the seismic slice analysis technology,the effects of different acquisition geometry parameters such as surface element,azimuth and line spacing on the imaging accuracy and amplitude preservation performance were investigated,and the conclusions and understanding of actual work were instructed.