Analytical solution for wave propagation due to pop-out phenomenon in solid expandable tubular technology

T. Pervez, A. C. Seibi, A. Karrech

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Solid expandable tubular technology has gained wide acceptance in the petroleum industry due to its operationally simplified and cost-effective solution in well drilling. The down-hole hydraulic expansion results in forward motion of a mandrel until it pops out of the tubular. The pop-out phenomenon, which occurs at the end of the tubular expansion process, leads to a sudden release of stored energy within a fluid-tubular system, causing unnecessary vibration. These vibrations can become severe and may cause permanent damage to the tubular. Hence, a complete understanding of the dynamics of the fluid-tubular system is essential to avoid premature failure. This paper focuses on the development of a mathematical model describing the dynamics of a fluid-tubular system due to pop-out phenomenon. The coupling between tubular, fluids, and formation is incorporated. An analytical solution for the propagation of displacement, stress, and pressure waves, originating due to the excitation caused by pop-out, is obtained. The model also identifies the potential failure locations along the tubular. The coupling effect is more prominent if the tubular material is elastic as compared to elastic-perfectly plastic material. A sensitivity analysis showed that the coupling effects vanish with increase in tubular stiffness and reach an asymptotic value with an increase in formation stiffness. The quantification of coupling effects is important in order to see the effects of pressure waves on the other subsystems present down hole.

Original languageEnglish
Pages (from-to)923-942
Number of pages20
JournalPetroleum Science and Technology
Volume24
Issue number8
DOIs
Publication statusPublished - Aug 1 2006

Fingerprint

Wave propagation
wave propagation
Fluids
fluid
stiffness
vibration
Stiffness
Well drilling
Petroleum industry
Sensitivity analysis
sensitivity analysis
plastic
drilling
Hydraulics
Mathematical models
Plastics
hydraulics
damage
effect
cost

Keywords

  • Coupled problems
  • Solid expandable tubular
  • Wave propagation

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology
  • Energy Engineering and Power Technology

Cite this

Analytical solution for wave propagation due to pop-out phenomenon in solid expandable tubular technology. / Pervez, T.; Seibi, A. C.; Karrech, A.

In: Petroleum Science and Technology, Vol. 24, No. 8, 01.08.2006, p. 923-942.

Research output: Contribution to journalArticle

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