Volume 41 Issue 4
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LIU Wentang, LIU Yutong, LI Xudong, et al.Development of polymer gel temporary plugging agent and the application [J]. Drilling Fluid & Completion Fluid，2024, 41（4）：551-556 doi: 10.12358/j.issn.1001-5620.2024.04.018
Citation: LIU Wentang, LIU Yutong, LI Xudong, et al.Development of polymer gel temporary plugging agent and the application [J]. Drilling Fluid & Completion Fluid，2024, 41（4）：551-556 doi: 10.12358/j.issn.1001-5620.2024.04.018
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Development of Polymer Gel Temporary Plugging Agent and the Application

doi: 10.12358/j.issn.1001-5620.2024.04.018

  • Drilling Engineering Technology Research Institute, Sinopec Zhongyuan Oilfield Service Cor-poration, Puyang, Henan, 457001

  • Received Date: 2024-02-20
  • Rev Recd Date: 2024-02-25
  • Publish Date: 2024-09-30
    Abstract
  • Laojun 4 Well is a high sulfur gas well located on the edge of Puguang, after acid fracturing, The formation pressure coefficient is low, before putting into production, the temporary plugging is necessary,but there has two Circulation valves stalled within 1m,the normal temporary plugging agents cannot smoothly pass through the inner diameter of the circulation valve.In view of the above problems, a polymer gel temporary plugging agent has been developed and successfully applied in Laojun 4 Well.Laboratory and field experiments show that the polymer gel temporary plugging agent has a plugging pressure of 27 MPa and a validity period of 15 days at 130 ℃, with the high plugging removal rate,it can block the gas escape from the wellbore. After being put into production, the output is about 1.2 million m3/d, the effect of site application is super.

     

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