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In the process of oil and gas development of Oilfield, the reservoir has the characteristics of high temperature, high pressure and low perTQ-1bility, the relevant working fluid is required to have the characteristics of high density, high temperature resistance, low corrosion and low reservoir damage during oil testing, and well completion. Therefore, a set of solid free well control fluid with density up to 1.82 g/cm3 and temperature resistance up to 160 ℃ has been developed. Laboratory evaluation shows that the corrosion rate of super N80 steel sheet is far less than 0.076 mm/a at 160 ℃, the rolling recovery rate is more than 95%, and the core recovery value is more than 90% in the solid-free system.

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Development and Performance Evaluation of High Density Solid Free Well Killing Fluid

  • 会议论文

  • 发表日期：

    2025年

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  • Haiyan Yang,
  • Miao Dou,
  • Zhengquan Bai,
  • Qiang Li,
  • Qu Le,
  • Jiale Hu

摘要

In the process of oil and gas development of Oilfield, the reservoir has the characteristics of high temperature, high pressure and low perTQ-1bility, the relevant working fluid is required to have the characteristics of high density, high temperature resistance, low corrosion and low reservoir damage during oil testing, and well completion. Therefore, a set of solid free well control fluid with density up to 1.82 g/cm3 and temperature resistance up to 160 ℃ has been developed. Laboratory evaluation shows that the corrosion rate of super N80 steel sheet is far less than 0.076 mm/a at 160 ℃, the rolling recovery rate is more than 95%, and the core recovery value is more than 90% in the solid-free system.