Abstract：Seismic exploration of deep and complicated structure is a challenging study field at present.The Mazhai working area,Shengli oilfield is a typical real case. It is impossible to obtain reasonable interpretation of geological structures because of poor seismic data in Mazhai area. In the paper,I made a Mazhai velocity model on the basis of geological acknowledge and obtained prestack seismic data by the aide of finite-difference acoustic wave field modeling method,which was taken for migration tests. Numerical results proved that it is difficult to correctly image the Mazhai seismic data with the presently extensively used poststack time migration technique and theoretically demonstrated the negative effect of stacking process on correct imaging of complicated geological structures. Meanwhile,I made imaging tests for the Mazhai synthetic seismogram by using a poststack depth migration method,a prestack time migration method and a prestack depth migration technique separately and provided more reference basis for selecting reasonable migration techniques.
付金华, 何瑞武. 胜利油田马寨深层复杂构造地震成像的探讨[J]. 石油地球物理勘探, 2001, 36(6): 761-772.
Fu Jinhua, He Ruiwu. Approaching of seismic imaging in deep and complicated structure of Mazhai area,Shengli Oilfield. OGP, 2001, 36(6): 761-772.
