特种油气藏 ›› 2022, Vol. 29 ›› Issue (3): 150-155.DOI: 10.3969/j.issn.1006-6535.2022.03.022

• 钻采工程 • 上一篇    下一篇

双电潜泵井封隔式Y-tool工具研究与应用

于志刚1, 张德政1, 胡振超1, 穆永威1, 杨波1, 马亚铃2   

  1. 1.中海石油(中国)有限公司湛江分公司,广东 湛江 524057;
    2.北京高德维尔科技发展有限公司,北京 100020
  • 收稿日期:2021-06-09 修回日期:2022-03-10 出版日期:2022-06-25 发布日期:2023-01-09
  • 作者简介:于志刚(1982—),男,高级工程师,2006年毕业于西南石油大学测控技术与仪器专业,2009年毕业于该校油气田开发工程专业,获硕士学位,现从事采油工艺技术研究工作。
  • 基金资助:
    中海油重点项目“南海西部油田上产2000万方关键技术研究”(CNOOC-KJ 135 ZDXM 38 ZJ)

Study and Application of Packer Y-tool in Dual-ESP Wells

Yu Zhigang1, Zhang Dezheng1, Hu Zhenchao1, Mu Yongwei1, Yang Bo1, Ma Yaling2   

  1. 1. CNOOC Zhanjiang Branch, Zhanjiang, Guangdong 524057, China;
    2. Beijing Goldwell Technology Development Co., Ltd., Beijing 100020, China
  • Received:2021-06-09 Revised:2022-03-10 Online:2022-06-25 Published:2023-01-09

摘要: 针对海上油田双电潜泵井出现的电潜泵单流阀漏失导致流体内循环无效做功的问题,研制了一种新型封隔式Y-tool工具。该Y-tool工具设计了封隔套和封隔套锁紧机构,可防止井内流体无效内循环,保证电潜泵井的正常生产,减少因电潜泵单流阀漏失而造成的修井作业。现场已累计应用15井次,措施有效率为100%,有效提高了油井生产时率,节省作业费。该技术可促进海上油田双电潜泵采油技术的推广应用,具有良好的经济效益和社会效益。

关键词: 双电潜泵, 单流阀, 漏失, 封隔式Y-tool工具, 封隔套

Abstract: A new packer Y-tool was developed to address the problem of ineffective fluid internal circulation due to the lost circulation at the check valve of the dual electric submersible pump (dual-ESP) in offshore oilfields. The Y-tool was designed with packer sleeve and packer sleeve locking mechanism to prevent the ineffective internal circulation of fluid in the well, ensuring the normal production of the ESP wells and reducing the workover operation caused by the lost circulation at the ESP check valve. The method was applied 15 wells in the field, with 100% efficiency rate, effectively improving the production rate of oil wells and reducing operation cost. The technology can promote the application of dual electric submersible pump in the oil recovery of offshore oilfields, with great economic and social benefits.

Key words: dual-ESP, check valve, lost circulation, packer Y-tool, packer sleeve

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