煤层气储层破坏机理及其影响分析

Analysis of the Failure Mechanism and Its Influence of the Coalbed Methane Reservoir

煤层气与常规天然气不同,具有孔渗特征、流体性特征以及裂隙特征。为解决煤层气开发过程中易受环境影响而出现煤岩坍塌与污染问题,该文从实践角度出发,分析了煤层气储层特征、破坏机理,并找出了破坏影响因素。结果表明:煤层气储层破坏影响控制,须在明确储层特征与破坏机理基础上,才能发挥出具有适用性与针对性的作用。

Coalbed methane is different from conventional natural gas,and it has poroperm characteristics,fluidity characteristics and fracture characteristics.In order to solve the problem of coal rock collapse and pollution caused by the environmental impact during the development of coalbed methane,this paper analyzes the characteristics and failure mechanism of the coalbed methane reservoir from a practical point of view,and finds out the influence factors of failure.The results show that the control of the failure influence of the coalbed methane reservoir needs to play an applicable and targeted role on the basis of clarifying the characteristics and failure mechanism of the reservoir.