利用电阻率测井资料判断油气层时，电阻率值法和径向电阻率差异法是常用的两种解释方法。在复杂岩性地层条件下，电阻率值法难以克服岩性、物性和地层水矿化度变化等因素的影响；相比之下，径向电阻率差异法是较为适用的解释方法。但是，由于目前电阻率测井的分辨率不匹配，深、浅电阻率资料不能反映储层径向电阻率变化，无法采用径向电阻率差异法解释。地电模型和实际资料说明，在现有的技术条件下，通过改进测井仪器和采用先进的资料处理方法，如反演，可以得到地层径向电阻率差异，为实现径向电阻率差异法解释提供必要的条件 Resistivity logging data to determine the oil and gas reservoir, the resistivity method and the radial resistivity difference method is commonly used in two interpretation methods. In complex lithology conditions, the resistivity method is difficult to overcome the lithology, physical properties and formation water salinity changes and other factors; In contrast, the radial resistivity difference method is a more appropriate method of interpretation. However, due to the current mismatch of resistivity logs, the data of deep and shallow resistivity can not reflect the change of radial resistivity of reservoirs and can not be explained by the radial resistivity difference method. The geoelectric model and the actual data show that under the existing technical conditions, the difference in radial resistivity of the formation can be obtained by improving logging tools and using advanced data processing methods such as inversion. In order to achieve the difference of radial resistivity Explain to provide the necessary conditions