特种油气藏 ›› 2022, Vol. 29 ›› Issue (2): 170-174.DOI: 10.3969/j.issn.1006-6535.2022.02.025

• 钻采工程 • 上一篇    

油气集输系统法兰免动火柔性带压注胶封堵技术研究与应用

于淼1, 窦超1, 张建兵1, 祁鹏1, 陈萍1, 史涛2   

  1. 1.中国石油新疆油田分公司,新疆 克拉玛依 834000;
    2.新疆润霖新能源技术有限公司,新疆 克拉玛依 834000
  • 收稿日期:2021-07-10 修回日期:2022-01-07 出版日期:2022-04-25 发布日期:2023-01-10
  • 作者简介:于淼(1983—),男,工程师,2006年毕业于西安石油大学计算机科学与技术专业,2008年毕业于中国石油大学(华东)石油工程专业,获硕士学位,现主要从事油气田开发工程技术研究和管理工作。
  • 基金资助:
    国家自然科学基金“极端条件下气井管柱耦联振动力学行为与控制基础理论研究”(51974271);新疆科技厅支疆项目“新疆油田复杂工况环境油井管力学损坏理论及安全评价研究与应用”(2021E02043)

Study and Application of Hotwork-free Flexible Technology of Online Flange Leak Sealing with Sealant Injection for Oil and Gas Gathering System

Yu Miao1, Dou Chao1, Zhang Jianbing1, Qi Peng1, Chen Ping1, Shi Tao2   

  1. 1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
    2. Xinjiang Runlin New Energy Technology CO., Ltd., Karamay, Xinjiang 834000, China
  • Received:2021-07-10 Revised:2022-01-07 Online:2022-04-25 Published:2023-01-10

摘要: 法兰密封失效是油气集输流程中常见的生产故障,其可导致油气集输系统非正常停产检修,经济损失巨大。为提高法兰密封失效的堵漏效率,研发了一种法兰免动火柔性带压注胶封堵技术。该技术采用柔性卡环包裹在发生泄漏的法兰外侧,建立新的密封结构,使用专业注胶工具,通过注胶孔向法兰之间的缝隙内注入密封胶体,实现带压封堵泄漏,具有安全、便捷、高效的特点,可在不改变工艺流程参数的前提下,高效快捷地解决法兰泄漏问题。实际应用证实其具有很好的实用性,值得推广应用。

关键词: 法兰, 油气泄露, 带压封堵, 注胶封堵, 油气集输

Abstract: Flange seal failure is a common failure in oil and gas gathering process, which can lead to abnormal shutdown and maintenance of oil and gas gathering system, with huge economic losses. In order to improve the plugging efficiency against flange seal failure, a hotwork-free flexible technology of online flange leak sealing with sealant injection was developed. Specifically, a flexible clamp externally wraps the leaking flange to establish a new sealing structure, and a professional injection tool is used to inject the sealant into the gap between the flanges through the injection hole to seal the leak under pressure. This technology is characterized by excellent safety, convenience and efficiency, and can address the flange leak efficiently and quickly without changing the process parameters. The practical application has proved that it is significant in promotion and application.

Key words: flange, oil and gas leakage, online leak sealing, leak sealing with sealant injection, oil and gas gathering

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