沁城煤矿煤层气水平井生产特点分析

Analysis of the Production Characteristics of Coalbed Methane Horizontal Wells in Qincheng Coal Mine

为了研究分析沁城煤矿区块煤层气水平井生产特点,选取嘉能工区煤层气水平井作为研究对象,对该区块3号、15号煤层水平井的生产数据进行研究,分析了该区块3号、15号煤层的地质条件、瓦斯赋存情况以及水平井产气量、产水量、气量衰减速度、临界解吸比等情况,通过统计和对比发现2个水平井生产数据的差异,最后总结了沁城煤矿区块水平井生产特点。

In order to study and analyze the production characteristics of coalbed methane horizontal wells in the Qincheng coal mine block,the Jianeng work area was selected as the research object to study the production data of the 3#and 15#coalbed horizontal wells in the block.The geological conditions,gas occurrence,gas production,water production,gas attenuation rate,and critical desorption ratio of the 3#and 15#coal seams in the block were analyzed.Through statistics and comparison,the differences in horizontal well production data between the two were found.Finally,the production characteristics of horizontal wells in the Qincheng coal mine block were summarized.