In hard strata with high matrix resistivities , it was considered that the difference between fort - nation resistivity and tight surrounding rock resistivity was caused by fractures except these factors as shaliness , pores , high salinity formation water and the other minerals 在基岩电阻率较高的硬地层中，在去除了泥质、孔隙、高矿化度地层水和其他矿物等影响因素后，地层电阻率与致密围岩电阻率的差异就被认为是裂缝因素引起的。
The better advantage of high frequency induction in defining thin intercalated bed , discerning high - salinity low - resistivity oil ( gas ) reservoir , estimative of reservoir , estimating water - flooded reservoir and so on are found by analyzing the application of the many frequency induction logs in shengli oil filed 通过分析胜利油田多口井的高频感应测井资料发现，高频感应在划分薄夹层、识别高矿化度低阻油(气)层、定性确定储层渗流能力、评价水淹层等方面都有明显的优越性。
