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给出识别低电阻率气层的３ 种方法： 空间模量差比值法、三孔隙度差值法、三孔隙度比值法。３ 种方法都消除了骨架和泥质的影响， 只突出反映了天然气的影响。通过实际资料的处理证实， 这３ 种方法能较好地指示天然气的存在。
Three methods to identify the low resistivity gas layer are given: space modulus difference ratio method, three-porosity difference method and three-porosity ratio method. All three methods eliminate the skeletal and argillaceous effects, highlighting only the effects of natural gas. Through the actual data processing confirmed that these three methods can better indicate the existence of natural gas.