煤系气直井与煤层气U型井间的转换分析与应用  

Analysis and Application of Conversion between Coal Measure Gas Vertical Well and Coalbed Methane U-shaped Well

作　　者：乔晋 QIAO Jin(Shanxi Lanyan Coalbed Methane Engineering Research Co.,Ltd.,Jincheng 048000,Shanxi,China)

机构地区：[1]山西蓝焰煤层气工程研究有限责任公司,山西晋城048000

出　　处：《能源与节能》2023年第2期61-63,66,共4页Energy and Energy Conservation

摘　　要：以SX-T-02煤层气井为研究对象,研究直井与煤层气U型井间的转换及U型井施工工艺,通过合理的钻孔布置,过卸压区对下组煤煤层气进行抽采,以解决采掘工作面瓦斯突出问题。简要介绍了U型井的钻具组合、定向等方面的内容,并对两井连通技术进行了说明,阐述了施工中的几点认识。Taking SX-T-02 coalbed methane well as the research object, the conversion between vertical well and coalbed methane U-shaped well and the construction technology of U-shaped well were studied. Through reasonable drilling arrangement,the coalbed methane of the lower group of coal was pumped through the pressure relief area to solve the gas outburst problem in the mining face. This paper introduced the drilling tool assembly and orientation of U-shaped well, explained the connection technology of two wells, and summarized some understandings in construction.

关 键 词：煤系气直井 煤层气U型井 井型转换 锻铣-扩孔联作工艺 

分 类 号：TE331.1[石油与天然气工程—油气田开发工程]