技术方法

裂缝介质转换波方位各向异性研究

  • 邓燕 ,
  • 郭建春 ,
  • 赵金洲
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  • 成都理工大学
刘开元,1982 年生,男,成都理工大学在读硕士研究生,研究方向为油气与矿产地球物理。地址:(610059)四川省成都市成华 区二仙桥东三路1 号成都理工大学地球物理学院多波信息处理与并行计算实验室。E-mail:liukai180450@126.com

网络出版日期: 2011-02-20

Study on azimuthal anisotropy of converted wave in fracture medium

  • DENG Yan ,
  • GUO Jianchun ,
  • ZHAO Jinzhou
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  • Chengdu University of Technology, Chengdu 610059, China

Online published: 2011-02-20

摘要

该文介绍了在弱各向异性条件下,基于Thomsen 裂缝理论———HTI 介质各向异性参数的转换波近似反射系数公式,通过AVO 正演,比较分析各向异性系数对于P-SV 波反射系数的影响及对P-P 波反射系数的影响。结果表明,应用联合P-P 波和P-SV 波的数据进行联合反演,能够更好地降低数据结果的不唯一性,从而得到更精确的裂缝参数。

本文引用格式

邓燕 , 郭建春 , 赵金洲 . 裂缝介质转换波方位各向异性研究[J]. 岩性油气藏, 2011 , 23(1) : 90 -93 . DOI: 10.3969/j.issn.1673-8926.2011.01.015

Abstract

Based on Thomsen fracture theory, the converted wave approximate reflection coefficient of in weak anisotropic HTI media is introduced. Through AVO forward modeling, the influences of the anisotropy coefficient on P- SV wave reflection coefficient and P- P wave approximate reflection coefficient are analyzed and compared. The result shows that combining P- P wave and P- SVwave data to carry out inversion can get more accurate fracture parameters.

参考文献

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