反射地震层析成像的现状分析

从模型参数化、正演、反演以及解的评价这四个方面回顾了反射地震层析成像的理论研究现状,分析了反射地震层析成像的实际应用现状,同时指出了其所存在的主要问题,即数据投影角度不全和数据覆盖不均匀、参考模型引起的非线性误差问题、反射旅行时的提取问题、反演速度和速度间断面、数据的不确定性,并就解决这些问题提出了几点看法。

Analysis of Seismic Reflection Tomography

This paper reviews the theoretical research status of reflection seismic tomography from four aspects of the parameterized model, forward modeling, inversion and the solution evaluation. It also points out that the actual use of reflection seismic tomography and the present problems. These problems include non - complete projection and non - uniform coverage of data, non -linear error induced by the reference model, extraction of reflection travel time, inversion velocity and velocity discontinuity, as well as data uncertainty. In addition, this paper illustrates some corresponding strategies dealing with these problems.