石油物探2013，Vol.52Issue(1)：1-10,10.DOI:10.3969/j.issn.1000-1441.2013.01.001
HTI介质饱和流体特性和裂缝密度对方位反射系数的影响
Influence of HTI medium saturated fluid properties and fracture density on azimuthal reflectivity
摘要
Abstract
We build saturated fluid HTI medium elasticity matrix with e-quivalent medium theory and Thomsen fracture theory, and derivate elastic wave reflection-transmission equation of HTI media. Based on the equation, we discuss how fluid type and fracture density impact azimuth reflectivity. Model tests indicate that it is easier to distinguish differences of azimuth reflectivity between gas and water layer than that of oil and water layer. Furthermore, the larger incident angle causes the bigger reflectivity difference between gas and water layer and the larger azimuth angle causes the smaller that of difference. When fracture density increases, reflectivity decreases. The larger incident angle and the larger azimuth lead to the bigger reflectivity difference of different fracture density. The research can provide theory basis for fracture and fluid detection by azimuth seismic reflection characteristics.关键词
HTI介质/弹性矩阵/反射/透射方程/流体类型/裂缝密度Key words
HTI medium/ elasticity matrix/ reflection-transmission equation/fluid type/fracture density分类
天文与地球科学引用本文复制引用
李春鹏,印兴耀,张峰..HTI介质饱和流体特性和裂缝密度对方位反射系数的影响[J].石油物探,2013,52(1):1-10,10.基金项目
国家科技重大专项(2011ZX05009-003-004)资助. （2011ZX05009-003-004）
