Effect of transition rate and propargyl alcohol concentration on the corrosion of carbon steel during transitions in fluid composition from inhibited hydrochloric acid to sodium chloride brine

被引：8

作者：

Barker, Richard ^{[1
]}

Pickles, Benjamin ^{[1
]}

Hughes, Trevor L. ^{[2
]}

Barmatov, Evgeny ^{[2
]}

Neville, Anne ^{[1
]}

机构：

[1] Univ Leeds, Sch Mech Engn, Inst Funct Surfaces, Leeds LS2 9JT, W Yorkshire, England

[2] Schlumberger Cambridge Res Ltd, Madingley Rd, Cambridge CB3 0EL, England

来源：

ELECTROCHIMICA ACTA | 2020年 / 338卷

基金：

英国工程与自然科学研究理事会;

关键词：

Acidizing; Carbon steel; Acid corrosion; Acid inhibition; Propargyl alcohol; IRON; OIL;

D O I：

10.1016/j.electacta.2020.135877

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A newly developed flow cell technique is used to determine the progressive corrosion rate behaviour of carbon steel during concomitant changes in HCl and propargyl alcohol inhibitor over time, analogous to that experienced during matrix acid flowback. The corrosion response was found to be largely independent of fluid transition rate. Increasing initial inhibitor concentration supressed the overall corrosion rate with two peaks in corrosion rate being observed during every dilution process; the first peak relates to a critical propargyl alcohol concentration and the second to a critical HCl molarity. Such behaviour is discussed in the context of polymeric film formation/inhibition mechanisms. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：12

共 37 条

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[2]

Ali S.A., 2016, ACIDIZING

[3]

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