Abstract:A fast difference algorithm for wave equation migration, "eight-point center difference scheme", is put forward so as to counter toomuch operation of commonly used difference algorithm.The performance procedure of the new algorithm is outlined, and its computational stability demonstrated. This algorithm is easy to perform, and it has higher accuracy and only makes a quarter of the operation taken by "twelve-point center difference scheme" widely used at present."Eight-point center difference scheme" algorithm was used in trial migrations of both syntheticseismogram and real seismic data, The trial migration results show that in the case of same processing flow and same parameters, this algorithm only makes half of the computation taken by approxirnate quickening pursuit" algorithm in CGG's WEMIG migration module, with the seismic section improved.
收稿日期: 1986-01-06
引用本文:
金孟哲. 波动方程快速差分偏移方法[J]. 石油地球物理勘探, 1986, 21(5): 477-485.
Jin Mengzhe. Fast difference algorithm for wave equation migration. OGP, 1986, 21(5): 477-485.