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Title: Repassivation of 13% Cr steel dependent on brine pH

Abstract

A joint laboratory project, involving an oil production and oil well service company, investigated repassivation of martensitic 13% Cr steel. The rate at which this alloy is repassivated after losing its protective passive oxide layer to hydrochloric acid (HCI) depended on the pH of the spent acid returns. Test samples of 13% Cr cut from oilfield tubing were subjected to a fluid sequence of (1) initial brine, (2) HCI, (3) spent acid, and (4) final brine. In 9 days, the samples regained their passive oxide layers. When spent acid was taken out of the fluid sequence, the samples regained passive oxide layers in 3 days.

Authors:
;
Publication Date:
Research Org.:
Chevron Research Technology Co. (US)
OSTI Identifier:
20017434
Resource Type:
Journal Article
Journal Name:
Materials Performance
Additional Journal Information:
Journal Volume: 39; Journal Issue: 2; Other Information: PBD: Feb 2000; Journal ID: ISSN 0094-1492
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 02 PETROLEUM; STEEL-CR13; PASSIVATION; BRINES; PH VALUE; OIL WELLS; HYDROCHLORIC ACID; PROTECTIVE COATINGS

Citation Formats

Skogsberg, J W, and Walker, M L. Repassivation of 13% Cr steel dependent on brine pH. United States: N. p., 2000. Web.
Skogsberg, J W, & Walker, M L. Repassivation of 13% Cr steel dependent on brine pH. United States.
Skogsberg, J W, and Walker, M L. 2000. "Repassivation of 13% Cr steel dependent on brine pH". United States.
@article{osti_20017434,
title = {Repassivation of 13% Cr steel dependent on brine pH},
author = {Skogsberg, J W and Walker, M L},
abstractNote = {A joint laboratory project, involving an oil production and oil well service company, investigated repassivation of martensitic 13% Cr steel. The rate at which this alloy is repassivated after losing its protective passive oxide layer to hydrochloric acid (HCI) depended on the pH of the spent acid returns. Test samples of 13% Cr cut from oilfield tubing were subjected to a fluid sequence of (1) initial brine, (2) HCI, (3) spent acid, and (4) final brine. In 9 days, the samples regained their passive oxide layers. When spent acid was taken out of the fluid sequence, the samples regained passive oxide layers in 3 days.},
doi = {},
url = {https://www.osti.gov/biblio/20017434}, journal = {Materials Performance},
issn = {0094-1492},
number = 2,
volume = 39,
place = {United States},
year = {Tue Feb 01 00:00:00 EST 2000},
month = {Tue Feb 01 00:00:00 EST 2000}
}