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In order to determine the sealing performance of metal seals of ultra-high pressure casing hanger under annular pressure conditions. An equation for the contact pressure of metal seals is derived. A finite element model is developed by fully considering the excitation process of seals and the effect of annular pressure. Based on the model, the sealing performance of metal seals under different annular pressures is analyzed. The results show that metal seals are in a plastic state after excitation; Under the high annular pressure, the maximum Mises stress of the seals was 241 MPa and 225 MPa, respectively; the pressure never penetrated seals, and the sealing performance is excellent. This study provides technical support for the safe working of metal seals of ultra-high pressure casing hanger.

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Evaluation of Metal Sealing Performance of High Pressure Casing Hanger Under Annular Pressure Conditions

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Bao Zhang,
  • Jun Yi,
  • Yating Zhao,
  • Hongtao Jing,
  • Xuesong Wang,
  • Xiang Si,
  • Hao Yu

摘要

In order to determine the sealing performance of metal seals of ultra-high pressure casing hanger under annular pressure conditions. An equation for the contact pressure of metal seals is derived. A finite element model is developed by fully considering the excitation process of seals and the effect of annular pressure. Based on the model, the sealing performance of metal seals under different annular pressures is analyzed. The results show that metal seals are in a plastic state after excitation; Under the high annular pressure, the maximum Mises stress of the seals was 241 MPa and 225 MPa, respectively; the pressure never penetrated seals, and the sealing performance is excellent. This study provides technical support for the safe working of metal seals of ultra-high pressure casing hanger.