摘要
根据裂缝双侧向测井响应的特征，裂缝分３种状态：低角度裂缝、倾斜裂缝和高角度裂缝，给出了判断裂缝状态的方法；建立了裂缝的双侧向测井响应与裂缝孔隙度、裂缝内流体电导率、基岩电导率之间的函数关系；得出人工估算和计算机精确计算裂缝孔隙度的两套反演公式及相应计算方法．
According to the characterization of dual laterolog response to fracture,the forms of fracture are defined as three kinds:subhorizontal fracture,dipping fracture,subvertical fracture,and the metnod of identifying fractures is presented in this paper. The function relation is established between dual laterolog response to fracture and fracture porosity,fluid conductivity,base rock conductivity.Two inversion models are given:one is applied in the manual estimation of fracture porosity,the other is applied in computer process with accurate algorithm.
出处
《地球物理学报》
SCIE
EI
CSCD
北大核心
1996年第6期845-852,共8页
Chinese Journal of Geophysics
基金
国家"八五"攻关课题.
关键词
裂缝
断裂构造
测井
数学模型
裂缝孔隙度
Fracture porosity,Dual laterolog response,Conductivity,Inversion,Base rock,Fracture dip.
