物探化探计算技术Issue(4)：452-457,6.DOI:10.3969/j.issn.1001-1749.2014.04.14
倾斜裂缝地层qP波方位反射系数椭圆特征研究
Study on the elliptic characteristic of qP wave azimuth reflectivity from tilt fracture strata
摘要
Abstract
Tilt orientational fracture formation can be equivalent to TI medium.Therefore,according to the elastic wave reflec-tion and transmission equation of TI medium,we simulated qP wave azimuth reflectivity of isotropic Taylor rock overlying Aus-tin cretaceous rock with tilt fracture.By fitting qP wave azimuth reflectivity with ellipse,the relationship between fracture den-sity,fracture trend,fracture dip and elliptic parameter is studied in this paper.The study found that,with the fracture density increasing,ellipticity also increasing,and that there was a 180 degrees azimuth between fracture trend and ellipse center.And there was a certain correspondence between the distance from fracture dip and ellipse center to the origin of coordinates.Thus, this study could provide a theoretical support for predicting dipping fracture layers.关键词
倾斜裂缝/TI介质/椭圆特征Key words
tilt fracture/TI medium/elliptic characteristic分类
能源科技引用本文复制引用
王顺昌,田景春,贾瀛,李春鹏,林小兵..倾斜裂缝地层qP波方位反射系数椭圆特征研究[J].物探化探计算技术,2014,(4):452-457,6.基金项目
国家重大科技专项（2011ZX05007-003-01）；四川省青年基金项目 （）
