抚顺矿区煤层气资源条件综合分析

Evaluation of coalbed methane resource in Fushun mine field

通过对抚顺矿区煤层气地质特征、储层特征及煤层气资源量的系统而深入分析,认为该区煤层气资源条件良好,主煤层巨厚而集中、煤阶相对较高、煤岩类型有利于煤层气的生成、主煤层顶板的巨厚油页岩有利于煤层气的保存、且含气量相对较高、渗透性好、1200m以浅的煤层气资源量还有41.65×108m3。同时对矿区井下瓦斯抽放利用和煤层气利用的下游市场进行了评述,指出抚顺矿区是使我国煤层气产业走出困境,寻求突破的最佳试验战场。

On the basis of the synthetical analysis of the coalbed methane geology characteristics, the reservoir qualification and the estimate of the reserve in Fushun mine field, this paper thinks that the coalbed methane resource condition in this field is very good. In this field, the goal coal seam is thick and mass, the coal rank is relatively higher, the coal type is favorable to the gas generation, the seam top which is composed of oil shale is favorable to save the coalbed methane, the gas content is high, the permeability is good, and the coalbed methane reserve above 1200m deep can reach to 41.65?08m3. Also, this paper evaluates the underground recovery situation and the utilization status in this field. This paper consumes that Fushun mine field will be the best pilot field for coalbed methane recovery in China.