苏里格气田气水层快速识别方法研究

Fast Identification Method for Gas and Water Layer in Sulige Gas Field

对苏里格气田已投产气井的静态测井解释、试气生产结果进行对比,分析发现声波时差-自然电位重叠图、径向电阻率比值-自然电位重叠图、深侧向电阻率-声波时差曲线重叠图、等效弹性模量曲线能够放大气、水层差异幅度,便于快速直观地识别气水层。对多口新井的储层进行二次解释,预测储层产水情况,预测结果与动态结果基本一致。

Compared static logging interpretation with the gas production results,the findings showed that the AC acoustic-self potential,the ratio curve of shallow resistivity to deep resistivity self-potential,deep lateral resistivity log-AC acoustic curve overlapping area,and the curve of the equivalent elasticity modulus can amplify the difference between water and gas layer,which is beneficial to identify gas and water layers rapidly and intuitively.Some new wells were done second interpretation by this method,the result basically agrees well with the dynamic results.