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51312-01289-Flow Loop Trial of Corrosion Inhibitor Dose Optimisation by Micelle Detection

Picture for Flow Loop Trial of Corrosion Inhibitor Dose Optimisation by Micelle Detection
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Initial investigations described at Corrosion 2011. This paper reports on development of a micelle detection instrument. Criteria for interpreting the presence of micelles will be reported and results of a simulated field study to investigate the link between inhibitor micelle presence and corrosion rate. Together with results from real field samples, this data will be presented as development of a new tool for field analysis of brines

Product Number: 51312-01289-SG
ISBN: 01289 2012 CP
Author: Cameron Mackenzie
Publication Date: 2012
Industry: Science of Corrosion
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The association between optimum concentration of film-forming corrosion inhibitor and the presence of micellar particles in solution has been widely published over the last thirty years. Formation of a saturated molecular film of active surfactant on the target surface has been found to coincide with the formation of surfactant droplets (micelles) in solution at the Critical Micelle Concentration (CMC). Following the initial investigations described at Corrosion 2011 this paper reports on development of a micelle detection instrument which identifies individual particles in a flowing stream using a combination of light scatter and fluorescence marker measurements. Development of criteria for interpreting a sample for the presence of micelles will be reported along with the results of a simulated field study in a flow loop using real-time electrochemical corrosion probes to investigate the link between inhibitor micelle presence and corrosion rate. Together with results from the analysis of real field samples this data will be presented in the context of developing a new tool for simple and rapid field analysis of brines for minimising corrosion and chemical-related process upsets.

Key words: Corrosion inhibitor, micelles, surfactant, fluorescence, critical micelle concentration, emulsion, flow loop

The association between optimum concentration of film-forming corrosion inhibitor and the presence of micellar particles in solution has been widely published over the last thirty years. Formation of a saturated molecular film of active surfactant on the target surface has been found to coincide with the formation of surfactant droplets (micelles) in solution at the Critical Micelle Concentration (CMC). Following the initial investigations described at Corrosion 2011 this paper reports on development of a micelle detection instrument which identifies individual particles in a flowing stream using a combination of light scatter and fluorescence marker measurements. Development of criteria for interpreting a sample for the presence of micelles will be reported along with the results of a simulated field study in a flow loop using real-time electrochemical corrosion probes to investigate the link between inhibitor micelle presence and corrosion rate. Together with results from the analysis of real field samples this data will be presented in the context of developing a new tool for simple and rapid field analysis of brines for minimising corrosion and chemical-related process upsets.

Key words: Corrosion inhibitor, micelles, surfactant, fluorescence, critical micelle concentration, emulsion, flow loop

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Picture for Use of Micelle Detection for Corrosion Inhibitor Screening
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51317--9721-Use of Micelle Detection for Corrosion Inhibitor Screening

Product Number: 51317--9721-SG
ISBN: 9721 2017 CP
Author: Melanie Reid
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This paper describes a method of exploiting the critical micelle concentration (CMC) of the corrosion inhibitors to show that the use of CMC can be used as a laboratory screening method for corrosion inhibitor selection.
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51318-11467-Relationship between Inhibitor Adsorption and Surfactant Properties: Part I - Methodology

Product Number: 51318-11467-SG
Author: Ashwini Chandra / William Durnie / Jose Vera / Richard Woollam
Publication Date: 2018
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Methodology and approach used to characterize micellization and adsorption related parameters for an individual corrosion inhibitor components; specifically, data for a homologous quaternary amine series.
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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
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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.
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