大宁区块煤层气资源条件与垂直井产能关系研究

Research on Relationship between Resource Conditions and CBM Productivity of Vertical Wells in Daning Block

为研究大宁区块煤层气资源条件与垂直井产能之间的关系,分析了含气量、资源丰度、含气饱和度、临储压力比对产气量的影响,并用模糊综合评价法进行产气潜力预测。结果表明:该区块含气量、资源丰度、含气饱和度、临储压力比对煤层气垂直井产能影响均较弱,模糊综合评价法能够对产气潜力进行预测。

In order to research the relationship between resource conditions and CBM productivity of vertical wells in Daning block, analyzed the influence of gas content, resource abundance, gas saturation, ratio of critical desorption pressure and reservoir pressure to gas production, and used fuzzy comprehensive evaluation method to prediction gas potential. The results showed that in Da-ning block, the influence of gas content, resource abundance, gas saturation, ratio of critical desorption pressure to reservoir pressure are weak to CBM vertical wells, and the fuzzy comprehensive evaluation method can prediction gas potential.