论文部分内容阅读
本文根据高斯射线束方法的基本原理和数学表达式，结合井间地震方法的特殊观测方式，开发了井间地震方法的正演模块，给出了不同观测条件下各种模型的试验结果。该模块在二维非均匀各向同性介质中，可以同时或单独计算直达Ｐ波、Ｓ波，上行反射Ｐ波、Ｓ波和转换波，下行反射Ｐ波、Ｓ波及转换波。计算出的地震波场不仅能反映波的运动学特性，还能反映波的高频动力学特征，是发展井间地震技术的重要工具
In this paper, based on the principle and mathematical expression of Gaussian beam method and the special observation method of crosswell seismic method, a forward model of crosswell seismic method was developed and the experimental results of various models under different observation conditions were given. In 2D inhomogeneous isotropic medium, this module can compute direct P-wave, S-wave, up-reflected P wave, S-wave and converted wave, down-reflected P wave, S wave and converted wave simultaneously or separately. The calculated seismic wave field can not only reflect the kinematic characteristics of the wave but also reflect the high-frequency dynamic characteristics of the wave, which is an important tool for the development of crosswell seismic technology