我国煤层气勘探与开发技术现状及发展方向

摘要

介绍了煤层气勘探与开发技术体系的内涵,分析了我国煤层气勘探开发技术的现状与存在的问题,包括煤层气资源勘探技术、煤层气地面井增产技术、煤层气地面井排采技术、煤层气矿井抽采及煤气共采技术。针对煤层气勘探与开发的技术需求,对煤层气勘探与有利区块优选技术、以沁水和鄂尔多斯2个盆地为主的中～高煤阶地区煤层气增产技术、低煤阶地区煤层气单井增产与规模性开发技术、多煤层及构造煤地区煤层气地面井开发技术、煤炭与煤层气协同开采技术的近期、中期、远期规划提出了研究建议。%The paper introduced the connotation of the coal bed methane exploration and development system and analyzed the present status and problems of the coal bed methane exploration and development technology in China, including the coal bed methane resources exploration technology, the production improvement technology of the coal bed methane surface well, the gas drainage technology of coal bed methane surface well, the mine coal bed methane drainage, coal and gas jointly mining technology. According to the technical re- quirements of the coal bed methane exploration and development, the paper provided the study proposals on the coal bed methane explora- tion and the optimum technology of the favorable zone and block, the coal bed methane production improvement technology of the medium ~ high rank coal area mainly based on the Qinshui and Erdos basins, the coal bed methane well production improvement and the scale development technology of the low rank coal area, the coal bed methane surface well development technology of multi seam andstructure coal area, the short-term, medium-term and long-term planning of the coal and coal bed methane joint mining technology.