乌鲁木齐矿区煤层气井完井方式优选

Optimization of Completion Methods for CBM Wells In Urumqi Mining Area

针对乌鲁木齐矿区、阜康矿区大倾角中低煤阶煤层气井套管固井射孔完井、筛管完井与洞穴完井增产效果进行现场试验。收集同种井型不同完井方式产气效果,通过同样储层物性条件套管固井射孔完井、筛管完井与洞穴完井产气效果分析得出适应乌鲁木齐矿区、阜康矿区的完井方式—套管固井射孔完井。

The field testing of production increase effects with casing cementing and perforated completion,pipe completion and cavity completion is conducted in CBM wells with medium-low coal rank and large dip strata in Urumqi Mining Area and Fukang Mining Area.The gas production effects with different well completion methods for the same well type are collected.By analyzing the gas production effects with the three methods of well completion,the method of casing cementing and perforated completion is chosen to be adaptive to Urumqi Mining Area and Fukang Mining Area.