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Application of the CEL Approach to Consider FSI for the Assessment of Leak Tightness for Elastomeric Seals

[+] Author Affiliations
Yevgen Gorash

University of Strathclyde, Glasgow, UK

Alan Bickley

Weir Advanced Research Centre, Glasgow, UK

Francisco Gozalo

Weir Minerals, Salt Lake City, UT

Paper No. PVP2018-84792, pp. V004T04A030; 10 pages
doi:10.1115/PVP2018-84792
From:
  • ASME 2018 Pressure Vessels and Piping Conference
  • Volume 4: Fluid-Structure Interaction
  • Prague, Czech Republic, July 15–20, 2018
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5165-4
  • Copyright © 2018 by ASME

abstract

Swellable elastomeric seal is a type of specifically engineered packer that swell upon contact with wellbore fluids. Assessment of leakage tightness is a fundamental aspect in the design of swellable packers, since they should guarantee a reliable sealing under extreme pressures of the downhole fluids. Numerical capability of the leakage pressure prediction would facilitate improvement in the packer design methodology. Previous work was focused on investigation of the non-parametric optimisation capability seeking for an optimal external shape with a goal to maximise the grip of a packer with a borehole. The verification of an optimised design was done with a dynamic FE-simulation of packer’s failure by extrusion under an excessive pressure. The downside of that verification analysis was that Abaqus/Explicit solver couldn’t implement a realistic adaptive pressure application due to changing packer disposition and contact conditions. This simulation challenge is addressed in this paper by application of the Coupled Eulerian-Lagrangian (CEL) approach in Abaqus/Explicit, which provides the ability to simulate a class of problems where the fluid-structure interaction is important.

Copyright © 2018 by ASME

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