石油物探2017，Vol.56Issue(2)：192-202,11.DOI:10.3969/j.issn.1000-1441.2017.02.005
等效孔隙裂缝介质的弹性阻抗及广义流体因子分析
The analysis on elastic impedance and generalized fluid factor in equivalent porous fracture media
摘要
Abstract
Considering double porosity features of fracture media,generalized anisotropic parameters obtained in the Thomsen equivalent porous media model,equivalent to linear slip model are introduce into P-wave and P-SV-wave elastic impedance equations in HTI media,and the elastic impedance formula corresponded to Thomsen fracture media is obtained.The direct function relation between fracture,lithology,physical property parameters and elastic impedance is established.Numerical simulation show that the elastic impedance of fractured reservoirs is very sensitive to the properties of fracture fillings,its response degree to (vs/vp) 2 and equant matrix porosity is significantly different.Based on this,a generalized fluid factor suitable for the anisotropic media is established by extending the isotropic media fluid factor.The test results of numerical simulation and actual data processing results indicate that the generalized fluid factor can accurately identify the fluid in equivalent porous fracture media.关键词
裂缝介质/弹性阻抗/流体识别因子/各向异性参数/柔量Key words
fracture media/elastic impedance/fluid identification factor/anisotropic parameter/weaknesses分类
天文与地球科学引用本文复制引用
窦喜英,王恩利,闫国亮,陈启艳,董雪华,潘宇航..等效孔隙裂缝介质的弹性阻抗及广义流体因子分析[J].石油物探,2017,56(2):192-202,11.基金项目
中国地震局兰州地震研究所地震科技发展基金项目(2016050)和中国石油天然气股份有限公司科学研究与技术开发项目(2015B-3712)共同资助.This research is financially supported by the Earthquake Science and Technology Development Fund of China Earthquake Administration of Gansu Province (Grant No.2016050) and the Science Research and Technology Development Project of PetroChina Co.Ltd.(Grant No.2015B-3712). （2016050）
