Ultra-high Pressure Annular Blowout Preventer Packer Sealing Performance Analysis and Design

DOI

10.2991/978-94-6239-600-5_21How to use a DOI?

Keywords

ultra-high pressure; annular BOP; conical rubber core; finite element simulation; sealing performance; fatigue test

Abstract

In this study, the structure and working principle of spherical rubber core and conical rubber core in annular Blowout Preventer (BOP) are compared and analyzed, and it is concluded that conical rubber core are more suitable for ultra-high pressure environments. In this study, an ultra-high pressure annular BOP conical rubber core with a nominal diameter of 346.1mm and a rated working pressure of 103.5MPa was designed. The storage ratio of the cartridge is calculated to be 3.34, which is sufficient to meet the needs of ultra-high pressure sealing. In addition, a Yeoh constitutive model of the sealing rubber was constructed by uniaxial tensile test. Using Abaqus software, a finite element model was established and the process of sealing a 5″ drill pipe with a conical rubber core of this specification was simulated. The results show that when the piston stroke is 207.6mm, the rubber core can effectively seal the pressure of 103.5MPa, the rubber strain is lower than the tensile elongation of the material, and the stress of the metal skeleton meets the strength requirements. Through the sealing test and fatigue test, the sealing performance and reliability of the conical rubber core were verified, which provided solid technical support for the development of ultra-high pressure annular blowout preventer technology in China.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Pengcheng Wang
AU  - Zhiming Qu
AU  - Junfeng Xie
AU  - Junhui Wei
AU  - Liangliang Xu
AU  - Bao Zhang
AU  - Kun Li
PY  - 2026
DA  - 2026/02/26
TI  - Ultra-high Pressure Annular Blowout Preventer Packer Sealing Performance Analysis and Design
BT  - Proceedings of the 2025 8th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2025)
PB  - Atlantis Press
SP  - 212
EP  - 224
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-600-5_21
DO  - 10.2991/978-94-6239-600-5_21
ID  - Wang2026
ER  -