石油地球物理勘探2026，Vol.61Issue(3)：752-760,9.DOI:10.13810/j.cnki.issn.1000-7210.20250298
基于阵列感应测井电频散特征的碳酸盐岩储层油水识别方法
Identification of oil and water in carbonate reservoirs based on electrical dispersion characteristics of array induction logging
摘要
Abstract
The salt lake carbonate rocks have the characteristics of strong heterogeneity and high formation water salinity,which easily leads to insignificant resistivity differences between oil and water layers,thereby causing difficulties in identifying reservoir fluids.In the traditional array induction logging data processing process,the electrical dispersion characteristics of the multi-frequency raw data are often eliminated during the skin effect correction,and thus are not effectively utilized.Therefore,starting from the microscopic mechanism of the inter-face polarization effect,this study reconstructs the real and imaginary parts of the conductivity spectrum based on the multi-frequency raw conductivity curves of the deep detection sub-array of array induction logging,achieving qualitative discrimination of the fluid properties of carbonate reservoirs in the study area.Meanwhile,the conductivity dispersion degree calculation formula is introduced,and the electrical dispersion characteristics of the insitu formation fluids are quantitatively evaluated based on the multi-frequency raw conductivity of the deep detection sub-array of array induction logging.A new set of fluid identification charts is constructed by com-bining the resistivity values after wellbore correction and porosity normalization.The results show that this method and model have good applicability in the identification of fluids in salt lake carbonate reservoirs,effec-tively compensating for the deficiency of traditional single reliance on the absolute value of resistivity for fluid discrimination,and have good application prospects.关键词
阵列感应测井/电频散特征/碳酸盐岩/界面极化/复电阻率/流体识别Key words
array induction logging/electrical dispersion characteristics/carbonate rock/interface polarization/complex resistivity/fluid identification分类
天文与地球科学引用本文复制引用
李浩,许巍,阎泽华,郑亚萍,郑永崧,何浩然..基于阵列感应测井电频散特征的碳酸盐岩储层油水识别方法[J].石油地球物理勘探,2026,61(3):752-760,9.基金项目
本项研究受国家自然科学基金面上项目"复杂裂缝介质多尺度声波测井响应机理实验及智能评价方法研究"(42474177)资助. （42474177）
