摘要
位于山西沁水盆地南部的樊庄南部煤层气井区,既是华北油田煤层气井平均单井产量最高、也是产量出现明显递减的区块。研究这种开发情况后,认为与煤矿采掘有密切相关性。通过调查区块相邻煤矿的采掘情况,总结与煤矿采掘相关的煤层气井排采,获得了该类煤层气井的开采特征;同时进行了相关的煤基质收缩、应力变化等理论性探讨。受煤矿掘进影响的煤层气井有正反两方面表现,在实际开发中,掌握两者间的辩证关系,有利于提高资源利用率,提高经济效益。
The wells of southern Fanzhuang CBM block which are located in the soumern have the highest single well average gas production of Huabei Oilfields Company and is the markedly de clined area. The study results show the high level gas production and declined phenomenon is caused by coal mining. With the investigate of neighboring coal mines and their mining progress, summarizing the relationship of CBM well production an coal mining, this paper concludes the development characters of CBM wells nearby mining areas and discuss the theory of coal matrix shrinkage and stress variety. In CBM exploitation, the mining of coal bed makes a strong impact on surface wells＇ production, which could increase and decrease gas production. We should administer the two side dialectic relationship, which helps us improve resource utilization and economic effectiveness.
出处
《中国煤层气》
2014年第1期8-11,共4页
China Coalbed Methane
基金
国家科技重大专项<大型油气田及煤层气开发>--山西沁水盆地煤层气水平井开发示范工程(二期)(2011ZX05061)
中国石油股份公司科技重大专项<沁水煤层气田勘探开发示范工程>(2010E-2208)
关键词
煤矿采掘煤层气开发煤基质收缩应力变化辩证关系
Coal mining
CBM development
coal matrix shrinkage
stress variety
dialectic relationship
