摘要
恩洪盆地煤层气资源丰富,但煤储层渗透率低、水敏性强,开发难度大。采用水力加砂压裂技术对煤层气井进行增产改造效果不理想,因此提出并开展了高能气体压裂技术在煤层气开发中的试验应用,以期在煤储层中产生和形成多裂缝体系,同时产生较强的脉冲震荡作用于地层,改善和提高煤层导流能力。本文介绍了高能气体压裂技术在B井煤储层改造上的试验应用,分析了作用机理、工艺设计等,并提出了今后的研究方向,对探索我国煤层气有效开发的新途径具有重要的意义。
The coalbed methane resoureces are abundance in Enhong Basin. Where for the coal reservoir＇s low permeability and high water sensitivity,the development meets much difficult. The regular hydrofracture has little effect on the reservoir stimulation,so the high-energy fracture were experimented and applied in the development of CBM in of the formation of multi-fractures in the coal reservoir,as well as producing pulse shock on the stratum to improve the coal reservoir＇s flow conductivity. This paper introduces the application of high-energy fracture in the coal reservoir stimulation of Well B,and also analyzes high-energy fracture＇s action mechanism and technical design method. It proposes the research orientation of the kind technic. It is important on exploring new way to develop CBM effectively in China.
出处
《中国煤层气》
2010年第5期14-17,共4页
China Coalbed Methane
