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Guidelines for Corrosion Inhibitor Selection for Oil and Gas Production

Recommended corrosion inhibitor (CI) testing methods and interpretation to assure proper execution of a test program. Associated guidance for CI test program definition testing and management to ensure and improve the integrity of carbon steels applications in our Industry.

Product Number: 51317--8842-SG
ISBN: 8842 2017 CP
Author: Johannes Sonke
Publication Date: 2017
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$20.00
$20.00

Application of effective Corrosion Inhibition (CI) in Oil and Gas production is needed to enable long-term use of Carbon Steels (CS) in corrosive systems. The CIs for these application need to be properly validated for the field exposures to assure operational integrity. It is thus essential to assure CI effectiveness within its needed Integrity Operating Window (IOW).CIs continue to change when facing challenges due to field maturation new recovery approaches and other like new field developments (e.g. higher H2S content). These needs have spurred new test protocol development. A range of CI test methods have evolved - some useful and others less so. A lack of understanding of corrosion fundamentals can introduce fatal pitfalls into both test design protocols execution and Interpretation of results. No standards exist specific to definition of a needed CI testing program yet proper qualification may require test points at both at the boundary edge and within the field exposure IOW to assure CI performance. Based on a combination of operational experience and in house CI testing methods have been developed for CI testing to ensure effective CI deployment within its IOW. The combined understanding of corrosion processes Oil and Gas operations field exposure needs and laboratory test methods have proven to be crucial for effective CI assessment and deployment. The focus of this paper is recommended CI testing methods procedures and Interpretation to assure proper execution of a test program relative to relevant field exposure(s). This paper also provides associated guidance for CI test program definition testing and management to ensure and improve the integrity of CS applications in our Industry.

Key words: Corrosion Inhibition, Corrosion Inhibition testing, Oil and gas corrosion, CO2 corrosion, H2S corrosion, Integrity Operating Window.

 

Application of effective Corrosion Inhibition (CI) in Oil and Gas production is needed to enable long-term use of Carbon Steels (CS) in corrosive systems. The CIs for these application need to be properly validated for the field exposures to assure operational integrity. It is thus essential to assure CI effectiveness within its needed Integrity Operating Window (IOW).CIs continue to change when facing challenges due to field maturation new recovery approaches and other like new field developments (e.g. higher H2S content). These needs have spurred new test protocol development. A range of CI test methods have evolved - some useful and others less so. A lack of understanding of corrosion fundamentals can introduce fatal pitfalls into both test design protocols execution and Interpretation of results. No standards exist specific to definition of a needed CI testing program yet proper qualification may require test points at both at the boundary edge and within the field exposure IOW to assure CI performance. Based on a combination of operational experience and in house CI testing methods have been developed for CI testing to ensure effective CI deployment within its IOW. The combined understanding of corrosion processes Oil and Gas operations field exposure needs and laboratory test methods have proven to be crucial for effective CI assessment and deployment. The focus of this paper is recommended CI testing methods procedures and Interpretation to assure proper execution of a test program relative to relevant field exposure(s). This paper also provides associated guidance for CI test program definition testing and management to ensure and improve the integrity of CS applications in our Industry.

Key words: Corrosion Inhibition, Corrosion Inhibition testing, Oil and gas corrosion, CO2 corrosion, H2S corrosion, Integrity Operating Window.

 

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