井间弹性波波场散射特征数值模拟分析
网络出版日期: 2011-06-20
基金资助
国家重点基础研究发展计划“973”项目“火山岩储层及其油气藏识别与评价技术研究”(编号:2009CB219307)
Numerical simulation analysis of interwell elastic wave field scattering characteristics
Online published: 2011-06-20
张顺存 , 仲伟军 , 梁则亮 , 鲁新川 , 贾艳艳 , 史基安 . 井间弹性波波场散射特征数值模拟分析[J]. 岩性油气藏, 2011 , 23(3) : 91 -96 . DOI: 10.3969/j.issn.1673-8926.2011.03.017
Forward numerical simulation is the key mean for analysis of interwell seismic wave field. The elastic wave field separation numerical simulation technology is used to carry out interwell wave field observation and its characteristic analysis on layered medium model with a cavity, and to study the scattering characteristics of interwell seismic wave field by changing the cavity size and compressional velocity and shear velocity. The numerical simulation result shows that the cavity increases the complexity of the interwell seismic wave field, and the difference between its size and the wavelength of the P-wave and Swave will raise complexwave field characteristics, such as multi-scattering and reflection wave. Compared with P-wave, the S-wave with smaller wave length ismore easily to raise the scattering wave field.
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