煤矿区煤层气井地面抽采技术及应用
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摘要
为了实现煤矿区煤层气资源合理利用,为煤矿生产提供安全的瓦斯环境,基于煤炭开发时空接替规律,探讨了适合晋城煤矿区煤层气与煤炭协调开发的一体化模式。煤层气企业在煤炭规划区或准备区进行采前预抽,在钻井、射孔、压裂、排采和集输等方面形成了一套适合晋城煤矿区高阶煤煤层气地面抽采的成熟工艺,煤层气企业在获得经济利益的同时提高了煤田勘探开发程度、降低了煤矿瓦斯突出风险。指出了煤层气地面抽采存在政策激励疲软、产能到位率低、矿权重叠矛盾等问题。晋城煤矿区煤层气地面抽采技术为其他煤矿区提供了技术思路。
In order to realize reasonable utilization of CBM resources in coal mining area and provide a safe gas environment for coal production, an integrated model suitable for the coordinated and integrated development of CBM and coal in Jincheng Mining Area is discussed based on the law of time-space replacement of coal development. CBM enterprises carry out pre-drainage before coal mining in coal planning or preparation area, and form a set of mature techniques suitable for high-grade CBM drainage in Jincheng Mining Area on the ground in terms of drilling, perforation, fracturing, drainage and transformation and gathering. CBM enterprises in obtaining economic benefits at the same time improve the degree of coal field exploration and development, and reduce the risk of coal mine gas outburst. The paper also points out there are problems such as weak in policy incentives, low capacity, and conflicts of mining rights overlapping. The drainage technology in Jincheng Mining Area could provide the technical ideas for other coal mining areas.
In order to realize reasonable utilization of CBM resources in coal mining area and provide a safe gas environment for coal production, an integrated model suitable for the coordinated and integrated development of CBM and coal in Jincheng Mining Area is discussed based on the law of time-space replacement of coal development. CBM enterprises carry out pre-drainage before coal mining in coal planning or preparation area, and form a set of mature techniques suitable for high-grade CBM drainage in Jincheng Mining Area on the ground in terms of drilling, perforation, fracturing, drainage and transformation and gathering. CBM enterprises in obtaining economic benefits at the same time improve the degree of coal field exploration and development, and reduce the risk of coal mine gas outburst. The paper also points out there are problems such as weak in policy incentives, low capacity, and conflicts of mining rights overlapping. The drainage technology in Jincheng Mining Area could provide the technical ideas for other coal mining areas.
引文
[1] 张光波,祁空军,于家盛,等.煤矿采掘对煤层气开发影响模式探讨[J].中国煤层气,2018,15(5):40-43.
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[5] 张光波,祁空军,刘春春,等.煤矿区煤层气与煤协调开发模式探讨[J].中国煤层气,2018,15(6):43-46.
[6] 刘见中,沈春明,雷毅,等.煤矿区煤层气与煤炭协调开发模式与评价方法:[J].煤炭学报,2017,42(5):1221-1229.
[7] 张培河,白建平.煤矿区煤层气开发部署方法[J].煤田地质与勘探,2010,38(6):33-36,42.
[8] 孙东玲,李日富.煤矿采动稳定区煤层气地面井抽采技术及应用[J].煤炭科学技术,2016,44(5):34-38,49.
[9] 李学博,刘忠,刘春春,等.高阶煤裸眼多分支水平井重建渗流通道技术研究与应用[J].中国煤层气,2018,15(2):37-40.
[10] 胡秋嘉,李梦溪,乔茂坡,等.沁水盆地南部高阶煤煤层气井压裂效果关键地质因素分析[J].煤炭学报,2017,42(6):1506-1516.
[11] 窦武,王冀川,李洪涛,等.夏店区块低恒套压下井底流压控制研究与应用[J].中国煤层气,2017,14(3):7-11.
[12] 赖文奇,冯毅,张海峰.小回沟井田煤与煤层气共采模式研究[J].煤炭科学技术,2015,43(9):87-93.
[2] 樊振丽,申宝宏,胡炳南,等.中国煤矿区煤层气开发及其技术途径[J].煤炭科学技术,2014,42(1):44-49,75.
[3] 郭继圣,张宝优.我国煤层气(煤矿瓦斯)开发利用现状及展望[J].煤炭工程,2017,49(3):83-86.
[4] 贺天才,王保玉,田永东.晋城矿区煤与煤层气共采研究进展及急需研究的基本问题[J].煤炭学报,2014,39(9):1779-1785.
[5] 张光波,祁空军,刘春春,等.煤矿区煤层气与煤协调开发模式探讨[J].中国煤层气,2018,15(6):43-46.
[6] 刘见中,沈春明,雷毅,等.煤矿区煤层气与煤炭协调开发模式与评价方法:[J].煤炭学报,2017,42(5):1221-1229.
[7] 张培河,白建平.煤矿区煤层气开发部署方法[J].煤田地质与勘探,2010,38(6):33-36,42.
[8] 孙东玲,李日富.煤矿采动稳定区煤层气地面井抽采技术及应用[J].煤炭科学技术,2016,44(5):34-38,49.
[9] 李学博,刘忠,刘春春,等.高阶煤裸眼多分支水平井重建渗流通道技术研究与应用[J].中国煤层气,2018,15(2):37-40.
[10] 胡秋嘉,李梦溪,乔茂坡,等.沁水盆地南部高阶煤煤层气井压裂效果关键地质因素分析[J].煤炭学报,2017,42(6):1506-1516.
[11] 窦武,王冀川,李洪涛,等.夏店区块低恒套压下井底流压控制研究与应用[J].中国煤层气,2017,14(3):7-11.
[12] 赖文奇,冯毅,张海峰.小回沟井田煤与煤层气共采模式研究[J].煤炭科学技术,2015,43(9):87-93.