关于大幅度提高我国煤层气单井产量的探讨

A discussion on improving single well production of coal seam gas well in China

我国煤层气资源十分丰富,经过多年的发展与探索,形成了开采煤层气的一系列技术,如水平井、羽状井钻完井技术、排采智能调控技术、煤储层压裂改造技术等,基本上已经具备了完备的系列开发技术,处于世界的先进行列。但是,从煤层气单井产量来看,我国的发展远不如美国,单井产量低、产能衰减快、成本高的问题已经成为制约我国煤层气发展的重要障碍。因此,寻找到能够以较低成本、高效率开采出高产量的单井煤层气成为我国煤层气产业的重要目标。主要针对我国当前煤层气产量低现象进行深入的探讨研究并提出相对应的解决建议。

Coalbed methane resources are very rich in China,after years of development and exploration,has formed a series of technology of coal-bed methane mining,such as horizontal wells,pinnate well drilling and completion technology,production technology,intelligent control of coal reservoir fracturing technology,basically have a series of technique development in advanced complete.A series of technologies for coal mining in our country are in the forefront of the world.However,from the single well production of CBM wells,the development of our country is far less than that of the US.The problem of single well output,fast decline of production capacity and high cost has become an important obstacle restricting the development of CBM in China.Therefore,it is an important goal for China's CBM industry to find a single well CBM that can produce high output with low cost and high efficiency.This paper mainly studied the low production of coal bed gas in China,and put forward some corresponding solutions.