井下气液分离及回注技术研究现状分析

气井产水量的不断增加对天然气生产构成严重威胁，其影响越来越受到人们的关注和重视。使用井下气液分离及回注技术，可以降低举升和处理费用，增加生产寿命，提高采收率，减少环境污染，简化地面分离设备，提高投资效益。针对井下分离及回注技术研究现状进行了分析，给出了并下气液分离及回注形式、适用条件和技术设计、应用方面的结论。

Analysis of Study on Present Situation of Downhole Gas/Water Separation and Reinjection

People raise more and more concern about ever increasing water production, a terrible threat to gas production. Applying the technology of downhole gas/water separation and reinjec-tion can reduce lifting and disposal costs, increase production life and rates, diminish environmen-tal pollution, eliminate surface handling of water, and increase investments profit. In this article, we generally analyze the technology downhole gas/water separation and reinjection; give the con-crete style and applied situation, and some useful conclusions in technology design and applica-tion.