古叙矿区煤层气成藏开采地质条件分析评价

Accumulation and Mining Conditions of Coalbed Gas in the Gulin-Xuyong Mine Area

通过研究古叙矿区煤层气成藏性和可采性,揭示了影响该矿区煤层气成藏、开采的地质条件,并对其进行了相应评价。煤的演化程度、煤层厚度、煤层埋深、围岩封盖性能及断裂构造是影响成藏性的主要地质条件,煤层渗透率、等温吸附特征及含气饱和度是影响可采性的主要地质条件。综合分析古叙矿区的地质条件,结论是该矿区地质条件有利于煤层气的成藏和开发。

This paper deals with accumulation and exploitation conditions of coalbed gas in the Gulin-Xuyong mine area based on thickness, buried depth and evolutionary digress, permeability, isothermal adsorption characteristics and gas saturation of coal beds as well as fracture structure.