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Effect Of Inhibitor Component On Inhibitor Efficiency - Inhibitor Types And Intensifier-

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A lot of oil and gas facilities face corrosion problems because the production fluid contains some corrosive components represented by CO2. Generally, corrosion inhibitors are used in order to mitigate corrosion problems of tubing and pipeline. Imidazoline is known as one of the active ingredients of corrosion inhibitors and widely used in the oil and gas industries. However, imidazoline-type inhibitor is easily hydrolyzed to amide if water mixes into it.

Product Number: 51322-17791-SG
Author: Hirotaka Mizukami, Ayano Yasui, Tatsuya Sei, Takashi Ito, Susumu Hirano, Toshiyuki Sunaba, Akiyoshi Kimura, Reiko Ikeda, Mitsuru Uno
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings and Linings , Coatings
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Imidazoline, which is known as one of the active ingredients of corrosion inhibitors, is used in a lot of oil and gas facilities in order to mitigate corrosion problems. However, it is easily hydrolyzed to amide, which leads to the change of inhibitor efficiency. Therefore, the inhibitor efficiency of imidazoline-type and amide-type inhibitors was evaluated by several tests such as electrochemical measurements, weight loss test and quartz crystal microbalance measurement. Furthermore, the effect of one intensifier for corrosion inhibitor was also evaluated by the same tests.
As a result, the large difference of inhibitor efficiency between the imidazoline-type and amide-type inhibitor was not observed by the electrochemical measurements. On the other hand, the weight loss test under turbulent flow indicated that imidazoline-type inhibitor performed higher inhibitor efficiency than that of the amide-type. This intensifier improved the inhibitor efficiency of both types.

Imidazoline, which is known as one of the active ingredients of corrosion inhibitors, is used in a lot of oil and gas facilities in order to mitigate corrosion problems. However, it is easily hydrolyzed to amide, which leads to the change of inhibitor efficiency. Therefore, the inhibitor efficiency of imidazoline-type and amide-type inhibitors was evaluated by several tests such as electrochemical measurements, weight loss test and quartz crystal microbalance measurement. Furthermore, the effect of one intensifier for corrosion inhibitor was also evaluated by the same tests.
As a result, the large difference of inhibitor efficiency between the imidazoline-type and amide-type inhibitor was not observed by the electrochemical measurements. On the other hand, the weight loss test under turbulent flow indicated that imidazoline-type inhibitor performed higher inhibitor efficiency than that of the amide-type. This intensifier improved the inhibitor efficiency of both types.

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Effect Of Hydrophobic Interaction On Corrosion Inhibitor Efficiency

Product Number: 51322-17597-SG
Author: Susumu Hirano, Ayano Yasui, Hirotaka Mizukami, Tatsuya Sei, Toshiyuki Sunaba
Publication Date: 2022
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Corrosion inhibitors are used to prevent pipeline corrosion in oil and gas industry. The evaluation of corrosion inhibitors is one of the most important tasks for the corrosion engineers. Corrosion of the metal is suppressed by the inhibitor adsorption on the metal surface. Active ingredients of corrosion inhibitors are, in general, surfactants. A surfactant can adsorb on the internal metal surface of piping and makes a hydrophobic film preventing the contact of water with the metal surface.
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Dual Functional Corrosion Inhibitor Design And Testing For Top-Of-Line And Bottom Of Line Corrosion

Product Number: 51322-17787-SG
Author: Larry Chen, Nihal Obeyesekere, Jonathan Wylde, Michael Sim
Publication Date: 2022
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TOL corrosion is reported to occur in large diameter wet gas pipeline in stratified flow conditions
due to low fluid velocities1. With increasing distance from the inlet, the wet gas pipeline becomes
cooler as it loses heat to the environment. Such cooling causes water, hydrocarbon, and other
high vapor pressure species to condense on the pipe wall. The upper part of the pipe will
constantly be supplied with freshly condensed water while the less corrosive water saturated
with corrosion products will be drained along the pipe wall to the bottom of the line.
Picture for Guidelines for Corrosion Inhibitor Selection for Oil and Gas Production
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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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