| Study on Sealing Performance of Rubber Cylinder of Gas Sealing Packer for Oil and Gas Injection and Production Wells |
| Received:September 22, 2025 Revised:September 22, 2025 |
| DOI：10.12136/j.issn.1000-890X.2026.06.0403 |
| Key Words: oil and gas injection and production well；gas sealing packer；rubber cylinder；sealing performance |
| Author Name | Affiliation | E-mail | | LIU Lijuan* | Shenzhen Baijin Petroleum Technology Co.，Ltd | lijuanliu@petro-king.cn | | BIAN Peiming | Shenzhen Baijin Petroleum Technology Co.，Ltd | | | WANG Yubo | Baijin Energy Technology（Guangdong）Co.，Ltd | |
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| Abstract: |
| The sealing performance of the rubber cylinder of the gas sealing packer（referred to as the packer） in oil and gas injection and production wells under different working conditions were studyied.The results showed that the Yeoh model，as a constitutive model，could accurately describe the hyperelastic behavior of the rubber material of the packer rubber cylinder.Under different working conditions，the contact pressures of the semi-permanent，retrievable，and permanent packer rubber cylinders were higher than the fluid pressures，so that sealing failure of the packers did not occurre.However，there was a certain risk of strength failure for the retrievable packer edge rubber cylinder.The research could provide reference for the long-term safe and efficient operation of oil and gas injection and production wells. |
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