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03368 LABORATORY EVALUATION TO CHEMICALLY INHIBIT HIC AND SSC IN ERW CASING IN BOTH LIQUID AND VAPOR PHASE

Picture for 03368 LABORATORY EVALUATION TO CHEMICALLY INHIBIT
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Product Number: 51300-03368-SG
ISBN: 03368 2003 CP
Author: M.R. Gregg, G.L Lee
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Inhibitor filmed electric resistance weld (ERW) casing steel specimens immersed in a sour corrosive liquid environment are evaluated for mitigating benefits against wet hydrogen sulphide (H 2 S) attack utilizing standard NACE hydrogen induced cracking (HIC), and sulphide stress cracking (SSC) test protocols. A non-filmed casing steel surface suspended above the corrosive liquid phase, is then studied to determine if the vapor phase corrosion inhibitor supplied to the corrosive liquid phase can migrate to non-filmed surfaces exposed above the liquid, and prevent H 2 S damage. In the later study a vapor phase test cell was designed for HIC and standard slow strain rate testing was used for SSC to evaluate effectiveness of inhibitors in wet sour vapor phase environments.

Keywords: hydrogen embrittlement, hydrogen induced cracking, sulphide stress cracking, environmentally assisted cracking
Inhibitor filmed electric resistance weld (ERW) casing steel specimens immersed in a sour corrosive liquid environment are evaluated for mitigating benefits against wet hydrogen sulphide (H 2 S) attack utilizing standard NACE hydrogen induced cracking (HIC), and sulphide stress cracking (SSC) test protocols. A non-filmed casing steel surface suspended above the corrosive liquid phase, is then studied to determine if the vapor phase corrosion inhibitor supplied to the corrosive liquid phase can migrate to non-filmed surfaces exposed above the liquid, and prevent H 2 S damage. In the later study a vapor phase test cell was designed for HIC and standard slow strain rate testing was used for SSC to evaluate effectiveness of inhibitors in wet sour vapor phase environments.

Keywords: hydrogen embrittlement, hydrogen induced cracking, sulphide stress cracking, environmentally assisted cracking
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