沁南煤层气井氮气吞吐及带压检泵耦合应用  

Coupling application of N_2 huff & puff and pressured workover treatment in Qinnan CBM wells

作　　者：王永胜 Wang Yongsheng(Jincheng Branch,China United Coalbed Methane Co.,Ltd.,Jincheng 048000,China)

机构地区：[1]中联煤层气有限责任公司晋城分公司,山西晋城048000

出　　处：《石化技术》2018年第7期206-206,共1页Petrochemical Industry Technology

摘　　要：沁水盆地南部煤层气田煤阶属于无烟煤,储层具有低孔隙度、低渗透率、低压的特点,煤层气井经过长时间生产其产气量、产水量、套压逐步降低,为了实现稳产乃至增产的目的,可利用煤层气井氮气吞吐及带压检泵耦合作业,最大限度的实现对油气层和环境的保护,实现煤层气高效开发的目的。The coal rank of coalbed methane(CBM)fields in southern Qinshui Basin belongs to anthracite,The reservoir has the characteristics of low porosity,low permeability and low pressure.The gas and water output and casing pressure are gradually reduced after a long period of production.The coupling application of N2 Huff&Puff and pressured workover treatment in CBM wells can realize the stable production,maximizing the protection of the oil and gas reservoirs and the environment,achieving the efficient development of CBM.

关 键 词：煤层气井 氮气吞吐 带压作业 

分 类 号：TE377[石油与天然气工程—油气田开发工程]