Investigation of severe corrosion of mooring chain in West African waters

A. E. Potts; Emmanuel Fontaine; Robert Melchers

Investigation of severe corrosion of mooring chain in West African waters

A. E. Potts, Emmanuel Fontaine, Robert Melchers

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

Recent detailed observations of the performance of mooring chains for a floating production unit in tropical West African waters have shown severe localized corrosion (pitting) of the steel chain after only seven years of use. This paper describes the investigation of this phenomenon as part of the Joint Industry Paper (JIP) research program SCORCH (Seawater Corrosion of Rope and Chain) funded by the major oil companies, most Classification Societies and various offshore operators and manufacturers. It is shown that there is a high likelihood that the chain has been subjected to microbiology influenced corrosion (MIC) as a result of the elevated levels of water pollution in the operational area. However, despite the large localized loss of steel in corrosion pots, the breaking load shows only a relatively small reduction compared to the Minimum Breaking Load specified in design guidelines.

Original language	English
Title of host publication	Annual Conference of the Australasian Corrosion Association 2012
Subtitle of host publication	11-14 November 2012, Melbourne, Victoria [proceedings]
Place of Publication	Kerrimiur, Victoria, Australia
Publisher	Australasian Corrosion Association (ACA)
Pages	992-1001
Number of pages	10
ISBN (Print)	9781622769698
Publication status	Published - 2012
Externally published	Yes
Event	Australasian Corrosion Association (ACA) Conference 2012: Corrosion and Prevention - Crown Conference Centre, Melbourne, Australia Duration: 11 Nov 2012 → 14 Nov 2012

Conference

Conference	Australasian Corrosion Association (ACA) Conference 2012
Abbreviated title	CP 2012
Country/Territory	Australia
City	Melbourne
Period	11/11/12 → 14/11/12
Other	Corrosion Management for a Sustainable World: Transport, Energy, Mining, Life Extension and Modelling

Keywords

Corrosion
MIC
Microbiological influences
Mooring chain
Mooring integrity
Pitting
Reliability

Cite this

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title = "Investigation of severe corrosion of mooring chain in West African waters",

abstract = "Recent detailed observations of the performance of mooring chains for a floating production unit in tropical West African waters have shown severe localized corrosion (pitting) of the steel chain after only seven years of use. This paper describes the investigation of this phenomenon as part of the Joint Industry Paper (JIP) research program SCORCH (Seawater Corrosion of Rope and Chain) funded by the major oil companies, most Classification Societies and various offshore operators and manufacturers. It is shown that there is a high likelihood that the chain has been subjected to microbiology influenced corrosion (MIC) as a result of the elevated levels of water pollution in the operational area. However, despite the large localized loss of steel in corrosion pots, the breaking load shows only a relatively small reduction compared to the Minimum Breaking Load specified in design guidelines.",

keywords = "Corrosion, MIC, Microbiological influences, Mooring chain, Mooring integrity, Pitting, Reliability",

author = "Potts, {A. E.} and Emmanuel Fontaine and Robert Melchers",

year = "2012",

language = "English",

isbn = "9781622769698",

pages = "992--1001",

booktitle = "Annual Conference of the Australasian Corrosion Association 2012",

publisher = "Australasian Corrosion Association (ACA)",

address = "Australia",

note = "Australasian Corrosion Association (ACA) Conference 2012 : Corrosion and Prevention, CP 2012 ; Conference date: 11-11-2012 Through 14-11-2012",

}

Potts, AE, Fontaine, E & Melchers, R 2012, Investigation of severe corrosion of mooring chain in West African waters. in Annual Conference of the Australasian Corrosion Association 2012: 11-14 November 2012, Melbourne, Victoria [proceedings]. Australasian Corrosion Association (ACA), Kerrimiur, Victoria, Australia, pp. 992-1001, Australasian Corrosion Association (ACA) Conference 2012, Melbourne, Victoria, Australia, 11/11/12.

Investigation of severe corrosion of mooring chain in West African waters. / Potts, A. E.; Fontaine, Emmanuel; Melchers, Robert.
Annual Conference of the Australasian Corrosion Association 2012: 11-14 November 2012, Melbourne, Victoria [proceedings]. Kerrimiur, Victoria, Australia: Australasian Corrosion Association (ACA), 2012. p. 992-1001.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

TY - GEN

T1 - Investigation of severe corrosion of mooring chain in West African waters

AU - Potts, A. E.

AU - Fontaine, Emmanuel

AU - Melchers, Robert

PY - 2012

Y1 - 2012

N2 - Recent detailed observations of the performance of mooring chains for a floating production unit in tropical West African waters have shown severe localized corrosion (pitting) of the steel chain after only seven years of use. This paper describes the investigation of this phenomenon as part of the Joint Industry Paper (JIP) research program SCORCH (Seawater Corrosion of Rope and Chain) funded by the major oil companies, most Classification Societies and various offshore operators and manufacturers. It is shown that there is a high likelihood that the chain has been subjected to microbiology influenced corrosion (MIC) as a result of the elevated levels of water pollution in the operational area. However, despite the large localized loss of steel in corrosion pots, the breaking load shows only a relatively small reduction compared to the Minimum Breaking Load specified in design guidelines.

AB - Recent detailed observations of the performance of mooring chains for a floating production unit in tropical West African waters have shown severe localized corrosion (pitting) of the steel chain after only seven years of use. This paper describes the investigation of this phenomenon as part of the Joint Industry Paper (JIP) research program SCORCH (Seawater Corrosion of Rope and Chain) funded by the major oil companies, most Classification Societies and various offshore operators and manufacturers. It is shown that there is a high likelihood that the chain has been subjected to microbiology influenced corrosion (MIC) as a result of the elevated levels of water pollution in the operational area. However, despite the large localized loss of steel in corrosion pots, the breaking load shows only a relatively small reduction compared to the Minimum Breaking Load specified in design guidelines.

KW - Corrosion

KW - MIC

KW - Microbiological influences

KW - Mooring chain

KW - Mooring integrity

KW - Pitting

KW - Reliability

UR - http://www.scopus.com/inward/record.url?scp=84876818115&partnerID=8YFLogxK

M3 - Conference Paper

AN - SCOPUS:84876818115

SN - 9781622769698

SP - 992

EP - 1001

BT - Annual Conference of the Australasian Corrosion Association 2012

PB - Australasian Corrosion Association (ACA)

CY - Kerrimiur, Victoria, Australia

T2 - Australasian Corrosion Association (ACA) Conference 2012

Y2 - 11 November 2012 through 14 November 2012

ER -

Investigation of severe corrosion of mooring chain in West African waters

Abstract

Conference

Keywords

Other files and links

Research output

Investigation of severe corrosion of mooring chain in West African waters

Cite this