【摘要】 砂泥岩薄互层地层反射是一个非线性系统,若采用线性方法来反演则很难得到其真解.对于精度和计算效率要求较高的薄互层地震反演来说,非线性反演方法可以提高反演精度、分辨率和可靠性.本文基于改进的快速模拟退火方法,提出了砂泥岩薄互层波阻抗非线性反演方法.由于叠后地震资料的反演,会不同程度地受到噪音的影响,本文提出了一种新的反演目标函数.通过理论模型和实际地震资料的反演表明,本文方法是可行的.更多还原

【Abstract】 The seismic response in sand-shale inter-beddings is a non-linear system and we can not get true results with the use of linear methods.For sand-shale inter-beddings seismic inversion needs higher precision and computing efficiency.Non-linear inversion can improve precision,resolution and reliability of results.This paper brings forward a sand-shale inter-beddings acoustic impendence non-linear inversion method on the base of the improved very fast simulated annealing.At the same time,this paper puts forward a new objective function because noise can effect the post-stack seismic inversion to some extend.The method in this paper is feasible with the inversion of models in theory and the field data.更多还原