摘要
气举反循环钻探技术在大孔径瓦斯抽放孔中的应用,作用原理及钻进特点,并根据具体工程论述了气举反循环钻探技术在复杂地层中应注意的问题,分析了事故的原因,提出了其中存在的问题以及下一步改进意见。
The application, function theory and characteristic of the forge chisel of Gas upgrading of reverse circulation drilling technology in the The Large - diameter gas drainage well, and according to specific project this essay deals with problems we should pay attention to in the application of gas upgrading of reverse circulation drilling technology in complicated stratum, analyze the cause of the accident and bring up existing problems and suggestions of improvement for the next step.
出处
《煤炭技术》
CAS
2007年第11期137-138,共2页
Coal Technology
关键词
气举反循环
大孔径瓦斯抽放孔
冲洗液
gas upgrading of reverse circulation drilling technology
large - diameter gas drainage well
swell liquid
