油气藏评价与开发 ›› 2019, Vol. 9 ›› Issue (1): 80-84.

• 非常规油气 • 上一篇    

射流泵工艺在常压页岩气排水采气中的研究与应用

王玉海,夏海帮,包凯,仇卫东   

  1. 中国石化华东油气分公司南川页岩气项目部,重庆 408400
  • 收稿日期:2018-04-12 出版日期:2019-02-26 发布日期:2019-02-15
  • 作者简介:王玉海(1989—),男,助理工程师,页岩气、煤层气开发。
  • 基金资助:
    国家科技重大专项“彭水地区常压页岩气勘探开发示范工程”(2016ZX05061)

Research and application of jet pump technology in drainage gas recovery of shale gas at atmospheric pressure

Wang Yuhai,Xia Haibang,Bao Kai,Qiu Weidong   

  1. Nanchuan Shale Gas Project Department, East China Oil and Gas Company, SINOPEC, Chongqing 408400, China
  • Received:2018-04-12 Online:2019-02-26 Published:2019-02-15

摘要:

彭水区块属于典型的常压页岩气藏,原始地层压力系数偏低,压裂改造后通常需借助人工举升方式进行开采。初期优选电潜泵进行排水采气,排水工艺技术单一,生产过程中地层能量逐步下降,地层供液逐步减弱且产液含砂、黏土颗粒等杂质,电潜泵工艺很难实现稳定连续排采,作业频繁、生产成本高。为了解决常压页岩气井排水采气中遇到的问题,研究应用了射流泵工艺,并对射流泵工艺参数、配套工艺进行了优化,形成了一套适合常压页岩气排水采气的射流泵工艺,从而有效指导了常压页岩气生产。

关键词: 彭水区块, 常压页岩气, 射流泵, 排水采气, 工艺参数, 配套工艺

Abstract:

Pengshui block is a typical shale gas reservoir at atmospheric pressure which has lower coefficient of original formation pressure, and usually needs artificial lift recovery after fracturing. In the initial stage, we optimized the electric submersible pump for the drainage gas recovery. This technology was simple, meanwhile, the formation energy declined gradually, the formation liquid supply gradually decreased and the recovered fluid contained impurities such as sand and clay particle, so that it was hard to realize the stable continuous drainage and recovery, and had complex operation precess and high production cost. In order to solve these problems, we researched and applied the jet pump, and optimized the technology parameters and matching technology. At last, we formed a set of jet pump technology suitable for the drainage gas recovery of shale gas at atmospheric pressure to effectively guide the pressure of shale gas recovery.

Key words: Pengshui block, shale gas at atmospheric pressure, jet pump, drainage gas recovery, process parameters, matching process

中图分类号: 

  • TE355.52