钻孔煤层瓦斯压力测试的方法研究

Research on gas pressure test method of borehole coal seam

本次研究通过对前期大量钻孔瓦斯压力测试工作以及测试成果的总结,由钻孔煤层瓦斯压力测试原理引入,分析其瓦斯压力测试工作存在的几种影响因素,在前人的基础上,提出了钻孔煤层存在3中理论曲线,并结合实践工作中瓦斯压力测试成功曲线以及失败案例,对压力曲线进行一定的总结,分析了几种常见的压力曲线形成原因,为后期的钻孔瓦斯压力测试工作能否顺利进行提供一定的参考。

This study through a large number of drilling gas pressure test to early to work,and the summary of the test results,introduced by drilling of coal seam gas pressure testing principle,analysis of the several influence factors of working gas pressure test is on the basis of predecessors,puts forward the theoretical curve of coal seam drilling is three,and combined with practical work in the gas pressure test curve of success and failure,The pressure curve is summarized and several common reasons for the formation of pressure curve are analyzed,which can provide a certain reference for the later gas pressure test of borehole.