摘要
文中介绍了延川南区块煤层气参数井排采工艺技术现状,找出排采工艺中存在的主要问题,分析了延1小井组排采工艺技术现状,进行了延1大井组排采井泵径、泵深、冲程、冲次等生产参数设计,并针对前期排采井中易出煤粉、杆管偏磨等问题提出了相应的建议,对提高延川南区块煤层气整体开发水平具有重大意义。
The paper describes the present status of dewatering and drainage technology for CBM parameter well in Yanchuan south block,and finds out the chief existing problems in dewatering and drainage technology.It studies the present conditions of dewatering and drainage technology for Yan No.1 small pilot,and designs the production parameters of Yan No.1 big pilot,such as,diameter of dewatering pump,depth of pumping,stroke and frequency of stroke,etc.Based on the existing problems in the early stage of dewatering,such as,fine coal dusts,and wear of rod,suggestions are made accordingly,which is of important significance to improvement of the entire development level of CBM in Yanchuan south block.
出处
《中国煤层气》
2011年第5期22-25,共4页
China Coalbed Methane
关键词
煤层气
排采
检泵周期
CBM
drainage
pump maintenance period
