煤层气干扰试井测试在柿庄区块产能分析中的应用研究

Research on the Application of Coalbed Methane Interference Well Testing in the Production Capacity Analysis of Shizhuang Block

为了找出柿庄区块"个体性低产"的原因,在该区域选取两个非均质性井组进行了干扰试井测试,并利用井间连通性、压力恢复速率及目前地层压力等与井组产量的对应关系进行了分类分析,结果显示,柿庄区块井间"即时连通"可能是造成单井产量低的原因之一,两个典型井组均存在同一井组内多口井压穿顶底板含水层,导致单井压力受含水层压力控制,同时也导致了单井高产水、低产气的特征。

In order to find out the reason for the"individual low production"in Shizhuang block,two heterogeneous well groups were selected in this area to conduct interference well test tests,and the inter-well connectivity,pressure recovery rate and current formation pressure were used to compare with The corresponding relationship of well group production is classified and analyzed,and the results show:The"instant connection"between wells in Shizhuang block may be one of the reasons for the low production of a single well.Both typical well groups exist in the same well group.Multiple wells press through the roof and floor aquifers,resulting in the pressure of a single well being controlled by the pressure of the aquifer,and also resulting in the characteristics of high water production and low gas production in a single well.