The paper undertakes the comprehensive geophysical logging of some well at Yizheng city of Jiangsu province by adopting the resistivity,the spontaneous potential and the natural gamma,undertakes the lithology determination of the well based on the data for the logging,and the results show can interpret the changes of the grain succession and the face by the comprehensive geophysical logging and the sedimentary cycle can be directly judged by combining the rock core.%用电阻率、自然电位、自然伽马对江苏省仪征市某井进行了综合地球物理测井,以测井数据为基础,对该井进行了岩性划分,结果显示通过综合地球物理测井,可以较好地解释粒序变化和相序变化,结合岩芯可以更直观地判断沉积旋回。
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