Menu
Search
Filters
Close
Menu

51318-11654-Corrosion Inhibitor Screening - Impact of Test Approaches & Conditions on Performance

Picture for Corrosion Inhibitor Screening - Impact of Test Approaches & Conditions on Performance
Available for download

This paper provides illustrative examples of how seemingly small changes to test methodology in preliminary screening tests can significantly influence the absolute performance and relative ranking of corrosion inhibitors.

Product Number: 51318-11654-SG
Author: Ian Carpenter / Hunter Thomson / Rodney Madjitey / Caroline M.E. Simpson
Publication Date: 2018
Industries: Test Method , Science of Corrosion
$0.00
$20.00
$20.00

Chemical qualification of corrosion inhibitors in laboratory-based assessment generally relies on approaches designed to replicate all key aspects of the corroding environment (pCO2, field crude, brine composition, system temperature, pressure, wall shear, etc.). However, time and costs associated with more sophisticated techniques (e.g., HPHT autoclave or flow loop tests) may restrict use of such tests to chemicals at dose rates pre-qualified from simpler screening tests.

This paper provides illustrative examples of how seemingly small changes to test methodology in preliminary screening tests can significantly influence the absolute performance and relative ranking of corrosion inhibitors: specifically, the effect of pre-corrosion; brine chemistry and how it may need to be adjusted to avoid artefacts from scale deposition; and how procedural aspects can alter the effectiveness of inhibitor partitioning between oil and water phases.

The work therefore provides recommendations on optimal approaches and highlights the methodologies that can affect chemical screening for different applications. This will assist in improving design of corrosion inhibitor screening programs and eliminating common errors and artefacts.

Key words: Corrosion inhibitor, screening, testing, laboratory, procedures, LPR

Chemical qualification of corrosion inhibitors in laboratory-based assessment generally relies on approaches designed to replicate all key aspects of the corroding environment (pCO2, field crude, brine composition, system temperature, pressure, wall shear, etc.). However, time and costs associated with more sophisticated techniques (e.g., HPHT autoclave or flow loop tests) may restrict use of such tests to chemicals at dose rates pre-qualified from simpler screening tests.

This paper provides illustrative examples of how seemingly small changes to test methodology in preliminary screening tests can significantly influence the absolute performance and relative ranking of corrosion inhibitors: specifically, the effect of pre-corrosion; brine chemistry and how it may need to be adjusted to avoid artefacts from scale deposition; and how procedural aspects can alter the effectiveness of inhibitor partitioning between oil and water phases.

The work therefore provides recommendations on optimal approaches and highlights the methodologies that can affect chemical screening for different applications. This will assist in improving design of corrosion inhibitor screening programs and eliminating common errors and artefacts.

Key words: Corrosion inhibitor, screening, testing, laboratory, procedures, LPR

Product tags
Also Purchased
Picture for DNA sequencing of oilfield samples: impact of protocol choices on the microbiological conclusions
Available for download

51318-11662-DNA sequencing of oilfield samples: impact of protocol choices on the microbiological conclusions

Product Number: 51318-11662-SG
Author: Renato De Paula / Cruz St Peter / Ian Alex Richardson / Jep Bracey / Ed Heaver / Kathleen Duncan / Mary Eid / Ralph Tanner
Publication Date: 2018
$20.00

In this study, we retrieved multiple samples from several wells in an onshore oilfield and submitted them for 16S rDNA taxonomic analysis in two different laboratories. The results showed significant differences between laboratories.

 
Picture for Guidelines for Corrosion Inhibitor Selection for Oil and Gas Production
Available for download

Guidelines for Corrosion Inhibitor Selection for Oil and Gas Production

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

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.
Picture for Practical Cost-Benefit Analysis For Pipeline Corrosion Management
Available for download

51318-11641-Practical Cost-Benefit Analysis For Pipeline Corrosion Management

Product Number: 51318-11641-SG
Author: Tony Alfano / Tom Yahner / Dr. William V Harper / Jeff Kobs
Publication Date: 2018
$20.00

Framework for the management of corrosion life-cycle costs including the assessment of risk over time, the establishment of statistical process control techniques for identifying and evaluating risk decisions - and the methodology.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support