我国煤层气开发面临的主要科学技术问题及对策

Main technical problems and strategy faced in the CBM development in China

  • 摘要: 在综述我国利用地面垂直井、采动区井、井下瓦斯抽放和废矿井抽放等4种技术进行煤层气勘探开发工作的基础上,结合国内外发展趋势,提出加强煤层气成藏理论、无烟煤渗透性控制因素、低煤级煤层气资源前景等基础理论研究和采用低伤害、注气增压、采气—采煤一体化、极小曲率半径钻井等先进技术,以加快我国煤层气产业的发展

     

    Abstract: A review of China's present coalbed gas exploration and development with 4 types of techniques(surface vertical well,gob well,underground gas extraction,gas extraction from abandoned mine),combined with domestic and international development trends,is presented in this paper.The authors indicated that it is important to increase the study on coalbed gas reservior formation,permeability controlling factors of anthracite,the basic theory on low rank coal's resource,as well as the research on advanced techniques of low damage,gas injection for increasing production,tight radius of curvature drilling operation.

     

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