THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Linfeng Zhang

,

Dongsheng He

,

Ya Tan

,

Liangbin Xu

INVESTIGATION OF THERMAL MECHANICAL COUPLING NUMERICAL SIMULATION AND THEORETICAL STUDY OF K-SHAPED COMBINED METAL SEAL OF DOWNHOLE FLOW CONTROL VALVE

ABSTRACT
The K-shaped seal assembly is composed of K-shaped metal seal, high temperature nickel base alloy (GH4169). Its sealing performance directly affects the reliability and stability of flow control system. The 2-D axisymmetric K-shaped metal seal is abstracted as the combination of interference fit model and cantilever beam model. Considering the influence of temperature on the seal, based on the 2-D constitutive relation of elastic medium and heat conduction theory, the theoretical model between contact stress and self variation of K-shaped metal seal ring is deduced by using inverse method. Using ABAQUS thermal structure coupling analysis method, the thermal mechanical coupling finite element model of K-shaped seal assembly is established. The theoretical analytical solution proposed in this paper can be used to calculate the approximate solution of contact stress of radial metal seal under current oilfield conditions, and provides theoretical support for the numerical calculation of thermal stress of radial metal seal.
KEYWORDS
K-shaped metal seal, inverse method, sealing preference, thermal-mechanical coupling, ICV
PAPER SUBMITTED: 2020-11-29
PAPER REVISED: 2021-01-13
PAPER ACCEPTED: 2021-01-25
PUBLISHED ONLINE: 2021-07-31
DOI REFERENCE: https://doi.org/10.2298/TSCI2104053Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 4, PAGES [3053 - 3061]
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Investigation of thermal mechanical coupling numerical simulation and theoretical study of k-shaped combined metal seal of downhole flow control valve

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence