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51316-7626-Controlling the Kinetic Versus Thermodynamic Growth of Calcium Carbonate Scale on Surface

Picture for Controlling the Kinetic Versus Thermodynamic Growth of Calcium Carbonate Scale on Surface
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Product Number: 51316-7626-SG
ISBN: 7626 2016 CP
Author: thibaut charpentier
Publication Date: 2016
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Mineral scale formation and deposition can cause dramatic and unacceptable safety risks and associated operational costs. It is recognized as a major flow assurance problems affecting production in the oil and gas industry. The current models used to predict scale precipitation are solely based upon thermodynamic data without taking into consideration its kinetic aspect. The aim of this paper is to investigate the interplay between kinetic and thermodynamic control of calcium carbonate growth on surfaces. Standard bulk jar scaling tests were performed over a range saturation ratios and temperatures. By analysing bulk precipitation and surface growth experimental data at the highest super saturations these experiments do confirm a strong temperature dependence for the rate of surface fouling and moderate dependency on saturation index. The experimental findings of this study suggest that reducing the kinetic of calcium carbonate precipitation can under some condition promote mineral surface fouling.
Mineral scale formation and deposition can cause dramatic and unacceptable safety risks and associated operational costs. It is recognized as a major flow assurance problems affecting production in the oil and gas industry. The current models used to predict scale precipitation are solely based upon thermodynamic data without taking into consideration its kinetic aspect. The aim of this paper is to investigate the interplay between kinetic and thermodynamic control of calcium carbonate growth on surfaces. Standard bulk jar scaling tests were performed over a range saturation ratios and temperatures. By analysing bulk precipitation and surface growth experimental data at the highest super saturations these experiments do confirm a strong temperature dependence for the rate of surface fouling and moderate dependency on saturation index. The experimental findings of this study suggest that reducing the kinetic of calcium carbonate precipitation can under some condition promote mineral surface fouling.
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