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滨南—利津断裂带发现较大规模低电阻率油藏,结合低阻油层的成因分析该地区储层电阻率的高低不仅与储层的含水饱和度有关,还与储层的孔隙度、岩性及岩性粗细密切相关。为避免传统的依据邻井的试产结果进行识别评价的方法,选用三孔隙度曲线重叠方法判别低阻油层,提出利用中子、密度和声波测井信息计算岩矿成分和粒径指数进行低阻油层的定量评价方法,并应用于测井评价,效果良好。
The large-scale low-resistivity reservoirs were found in the Binnan-Lijin fracture zone. Combined with the analysis of the origin of low-resistivity reservoirs, the resistivity of reservoirs in this area is not only related to the water saturation of reservoirs but also to the reservoir porosity, Sexual and lithological thickness are closely related. In order to avoid the traditional method of identifying and evaluating on the basis of the trial production of adjacent wells, three-porosity curve overlap method was used to discriminate the low resistivity reservoirs. It was proposed that the rock composition and particle size index should be calculated using neutron, density and acoustic logging information The method of quantitative evaluation of oil-retaining layer is applied to logging evaluation with good effect.