Damage analysis of choke bean used in an oil–gas well

H. M. Tawancy; Luai M. Alhems

doi:10.1016/j.csefa.2016.08.001

Damage analysis of choke bean used in an oil–gas well

H. M. Tawancy^*, Luai M. Alhems

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A choke bean used in an oil–gas field has catastrophically failed during operation. It is shown that that the damage has been caused by leakage of the corrosive and abrasive drilling fluid. The choke bean adapter made of carbon steel has been corroded and embrittled by hydrogen ingress leading to its fracture in the presence of stresses created by the pressure of accumulated fluid at the bottom section. On the other hand, the choke corner body made of stainless steel has been damaged by abrasive wear of its outer surface.

Original language	English
Pages (from-to)	56-64
Number of pages	9
Journal	Case Studies in Engineering Failure Analysis
Volume	7
DOIs	https://doi.org/10.1016/j.csefa.2016.08.001
State	Published - 1 Oct 2016

Bibliographical note

Publisher Copyright:
© 2016 The Author(s)

Keywords

Corrosion
Electron microscopy
Oil and gas
Steel
Wear

ASJC Scopus subject areas

Safety, Risk, Reliability and Quality

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10.1016/j.csefa.2016.08.001

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title = "Damage analysis of choke bean used in an oil–gas well",

abstract = "A choke bean used in an oil–gas field has catastrophically failed during operation. It is shown that that the damage has been caused by leakage of the corrosive and abrasive drilling fluid. The choke bean adapter made of carbon steel has been corroded and embrittled by hydrogen ingress leading to its fracture in the presence of stresses created by the pressure of accumulated fluid at the bottom section. On the other hand, the choke corner body made of stainless steel has been damaged by abrasive wear of its outer surface.",

keywords = "Corrosion, Electron microscopy, Oil and gas, Steel, Wear",

author = "Tawancy, {H. M.} and Alhems, {Luai M.}",

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AU - Alhems, Luai M.

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N2 - A choke bean used in an oil–gas field has catastrophically failed during operation. It is shown that that the damage has been caused by leakage of the corrosive and abrasive drilling fluid. The choke bean adapter made of carbon steel has been corroded and embrittled by hydrogen ingress leading to its fracture in the presence of stresses created by the pressure of accumulated fluid at the bottom section. On the other hand, the choke corner body made of stainless steel has been damaged by abrasive wear of its outer surface.

AB - A choke bean used in an oil–gas field has catastrophically failed during operation. It is shown that that the damage has been caused by leakage of the corrosive and abrasive drilling fluid. The choke bean adapter made of carbon steel has been corroded and embrittled by hydrogen ingress leading to its fracture in the presence of stresses created by the pressure of accumulated fluid at the bottom section. On the other hand, the choke corner body made of stainless steel has been damaged by abrasive wear of its outer surface.

KW - Corrosion

KW - Electron microscopy

KW - Oil and gas

KW - Steel

KW - Wear

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VL - 7

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JO - Case Studies in Engineering Failure Analysis

JF - Case Studies in Engineering Failure Analysis

ER -

Damage analysis of choke bean used in an oil–gas well

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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Cite this