Analytical model of elastomer seal performance in oil wells

S. A. Al-Hiddabi, T. Pervez, S. Z. Qamar, F. K. Al-Jahwari, F. Marketz, S. Al-Houqani, M. van de Velden

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Elastomer seals are growing in popularity in various applications in the oil and gas sector, and in many other fields. In this paper, the deformation of an elastomer seal confined between a metal tube and a rigid casing is analytically investigated. The elastomer is strained radially against the casing by means of a controlled tubular expansion process. The elastomer is also naturally strained axially by means of annuls reservoir fluid. The total strain causes the elastomer to develop internal pressure which leads to the sealing effect. The developed analytical results show the effect of elastomer geometry and its material properties on sealing performance in terms of maximum sealing pressure. In addition, sealing performance of the elastomer is studied under different strain conditions. The main contribution of this work is in finding a closed-form solution for the sealing pressure distribution along the axial direction of the elastomer as a function of compression ratio, seal geometry, and material properties. This analytical model can be used by field engineers for selection and evaluation of elastomer materials for a given set of field conditions, and by developers for improvement of elastomer seal design.

Original languageEnglish
Pages (from-to)2836-2848
Number of pages13
JournalApplied Mathematical Modelling
Volume39
Issue number10-11
DOIs
Publication statusPublished - 2015

Fingerprint

Elastomers
Oil wells
Analytical Model
Seals
Analytical models
Material Properties
Materials properties
Compression ratio (machinery)
Geometry
Pressure Distribution
Closed-form Solution
Pressure distribution
Tube
Sector
Compression
Metals
Internal
Engineers
Fluid

Keywords

  • Analytical model
  • Compression ratio
  • Elastomer sealing
  • Seal geometry
  • Sealing pressure
  • Solid expandable tubular (SET)

ASJC Scopus subject areas

  • Applied Mathematics
  • Modelling and Simulation

Cite this

Analytical model of elastomer seal performance in oil wells. / Al-Hiddabi, S. A.; Pervez, T.; Qamar, S. Z.; Al-Jahwari, F. K.; Marketz, F.; Al-Houqani, S.; van de Velden, M.

In: Applied Mathematical Modelling, Vol. 39, No. 10-11, 2015, p. 2836-2848.

Research output: Contribution to journalArticle

Al-Hiddabi, S. A. ; Pervez, T. ; Qamar, S. Z. ; Al-Jahwari, F. K. ; Marketz, F. ; Al-Houqani, S. ; van de Velden, M. / Analytical model of elastomer seal performance in oil wells. In: Applied Mathematical Modelling. 2015 ; Vol. 39, No. 10-11. pp. 2836-2848.
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