我国在临盘地区、南疆等地都遇到一些低阻油层,低阻油层未必都是泥质砂岩,它们可能是非常细粒的纯净砂质岩层,具有低电阻率,我们已经知道的低阻油层有下列几种类型:(1)不含有粘土矿物的非常细粒的砂岩。(2)含有分散粘土或颗粒上附着有粘土的砂岩,(3)泥岩和粉砂的薄互层。 为了充分评价这些岩层必须使地质学家和岩石物理学家们合作,综合研究气测井、萤光分析、岩心切片分析、地层压力及测井曲线等资料,判断该地层是否含油,是属于那一种类型的低阻油层。关键的问题之一是油气饱和度是含有可动油的原始饱和度,还是只含不能动 Our country in Linpan area, southern Xinjiang and other places have encountered some low resistivity oil, low resistivity oil layers are not necessarily muddy sandstone, they may be very fine pure sandstone, with low resistivity, we have known low There are several types of oil barriers: (1) Very fine sandstones that do not contain clay minerals. (2) sand containing dispersed clay or clay adhering to particles, and (3) thin interbed of mudstone and silt. In order to fully evaluate these strata, geologists and petrophysicists must cooperate to comprehensively study gas logging, fluorescence analysis, core slice analysis, formation pressure and well logging data to determine whether the formation is oil-bearing or not, A type of low-resistivity reservoir. One of the key questions is whether the hydrocarbon saturation contains the original saturation of the mobile oil or whether it contains immobility