Open Access

ARTICLE

Design and performance research of single rubber cylinder for high pressure gas injection packer

Lianyu Zhang, Shijie Wang, Wei Lv¹, Guangtao Yue, Yuan Ge, Zhengyang Zhao², Xianjun Zhou²

1 Sinopec Shengli Oilfield Petroleum Engineering Technology Research Institute, China
2 China University of Petroleum (East China)

* Corresponding Authors: Zhengyang Zhao (" />), Xianjun Zhou (" />)

Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería 2023, 39(2), 1-6. https://doi.org/10.23967/j.rimni.2023.05.004

Accepted 18 May 2023; Issue published 26 May 2023

Abstract

In order to solve the problem of "gas explosion" at the end of common rubber cylinder in the process of high temperature, high pressure and gas drive operation, the rubber cylinder with new structure suitable for 5_1/2 in casing pipe is developed. The "M" type single rubber cylinder structure is adopted in the new structure rubber cylinder, and the "gas explosion" problem of the end gas in the low-pressure side is solved by setting the double-layer staggered slotted steel cover to prevent outburst. The finite element method is used to simulate the setting of the rubber cylinder, and the structural parameters of the new rubber cylinder are obtained by single factor analysis and orthogonal optimization, simulation test and seal test were carried out to verify the sealing performance of the rubber cylinder. According to the actual working condition, the simulation test results and seal test results show that the sealing capacity of the packer reaches 50 MPa under the temperature resistance of 120℃,and the end steel cover is fully opened to wrap the rubber cylinder, which meets the operation requirements of high temperature and high pressure gas injection packer.

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Keywords

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