Corrosion of carbon steel in presence of mixed deposits under stagnant seawater conditions

Title: Corrosion of carbon steel in presence of mixed deposits under stagnant seawater conditions
Creator: Wang, Xiang; Melchers, Robert E.
Relation: Funding BodyARCGrant NumberDP140103388 http://purl.org/au-research/grants/arc/DP140103388
Relation: Journal of Loss Prevention in the Process Industries Vol. 45, p. 29-42
Publisher Link: http://dx.doi.org/10.1016/j.jlp.2016.11.013
Publisher: Elsevier
Resource Type: journal article
Date: 2017
Description: Channelling corrosion of steel pipelines used for offshore water injection pipelines can be severe. Both microbiologically influenced corrosion and under-deposit corrosion are suspected. Half-pipe steel specimens with mixed deposits of magnetite, calcium carbonate and sea sand exposed to near-deoxygenated seawater for 180 days showed more severe pitting corrosion under the deposits than elsewhere. Less severe under-deposit pitting occurred for seawater treated with filtration and ultraviolet (UV) irradiation. Nitrate addition, used in practice to control bacterial H₂S production in oil reservoirs, resulted in the most aggressive localized corrosion under the deposits. This has implications for water injection pipeline management.
Subject: carbon steel; water injection pipeline; channelling corrosion; under-deposit corrosion; microbiological corrosion
Identifier: http://hdl.handle.net/1959.13/1385173
Identifier: uon:32183
Identifier: ISSN:0950-4230
Language: eng
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