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文章简要回顾了20世纪90年代以前的电测井解释方法,概括介绍了近十年中国石油集团针对低幅度油藏—低电阻油层与前白垩系特低渗透砂岩油层电性质研究及电法测井解释方法的进展,包括中浅层泥质砂岩黏土附加导电、钻井液侵入油、水层双侧向与双感应测井的响应研究、复杂孔隙类型的特低渗透砂岩电性质研究以及各类油藏的测井饱和度—电阻率分布规律研究进展等。这些研究和进展表明近十年中国石油勘探中电测井评价油层(藏)的重要作用。
This paper briefly reviews the methods of electrical logging interpretation before the 1990s and summarizes the research on the electrical properties of low-resistance reservoirs and low-permeability sandstone reservoirs in the Cretaceous and the low-permeability reservoirs in the recent decade. Well interpretation of the progress of the method, including medium and shallow shale sand clay additional conductivity, invasion of drilling fluid in oil, water two-sided and double-sensing logging response, complex pore type of ultra-low permeability sandstone electrical properties and various types Logging saturation of reservoirs - research progress of resistivity distribution law and so on. These researches and developments show that electrical logging in China’s petroleum exploration has played an important role in reservoir evaluation over the past decade.