Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio

As a result of waterflooding, inorganic salt precipitation occurs in the different parts of an oil production system, thereby leading to damage of production equipment. Different parameters affect the kinetics of salt precipitation. Scale inhibitors are widely used to prevent inorganic salt form...

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Main Authors:	Azizollah Khormali, Dmitry G. Petrakov, Anar R. Farmanzade
Format:	Article
Language:	English
Published:	Universitas Indonesia 2016-10-01
Series:	International Journal of Technology
Subjects:	Formation damage Formation water Injection water Salt precipitation Scale inhibitor
Online Access:	http://ijtech.eng.ui.ac.id/article/view/328

id	doaj-eb90a41ce80e444c86a9be98af5b6093
record_format	Article
spelling	doaj-eb90a41ce80e444c86a9be98af5b60932020-11-24T21:37:15ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002016-10-017694395110.14716/ijtech.v7i6.328328Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing RatioAzizollah Khormali0Dmitry G. Petrakov1Anar R. Farmanzade2Department of Oil and Gas Field Development and Operation, Oil and Gas Faculty, Saint-Petersburg Mining University, Saint-Petersburg 199106, RussiaDepartment of Oil and Gas Field Development and Operation, Oil and Gas Faculty, Saint-Petersburg Mining University, Saint-Petersburg 199106, RussiaDepartment of Oil and Gas Field Development and Operation, Oil and Gas Faculty, Saint-Petersburg Mining University, Saint-Petersburg 199106, RussiaAs a result of waterflooding, inorganic salt precipitation occurs in the different parts of an oil production system, thereby leading to damage of production equipment. Different parameters affect the kinetics of salt precipitation. Scale inhibitors are widely used to prevent inorganic salt formation. In this study, the effect of reservoir pressure, temperature, and mixing ratio of injection to formation water on calcium sulfate and barium sulfate precipitation was investigated. For this purpose, two different formation waters and one injection water were used. In addition, the effect of temperature and mixing ratio on inhibition performance was studied. Four different existing industrial scale inhibitors and one new scale inhibitor were used. The performance of the scale inhibitors was determined under static and dynamic conditions. Results of the study showed that calcium sulfate precipitation increased with an increase in temperature and a decrease in pressure. Barium sulfate precipitation was found to increase with a decrease in the temperature. The effect of pressure on barium sulfate formation was negligible. The developed scale inhibitor showed the highest performance for the prevention of calcium sulfate and barium sulfate formation. A change in temperature from 60°C to 120°C reduced the inhibitor performance by 3%. In the cases of calcium sulfate and barium sulfate, the minimum performance of the scale inhibitor was observed when the mixing ratios of injection to formation waters were 60:40 and 50:50, respectively.http://ijtech.eng.ui.ac.id/article/view/328Formation damageFormation waterInjection waterSalt precipitationScale inhibitor
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Azizollah Khormali Dmitry G. Petrakov Anar R. Farmanzade
spellingShingle	Azizollah Khormali Dmitry G. Petrakov Anar R. Farmanzade Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio International Journal of Technology Formation damage Formation water Injection water Salt precipitation Scale inhibitor
author_facet	Azizollah Khormali Dmitry G. Petrakov Anar R. Farmanzade
author_sort	Azizollah Khormali
title	Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio
title_short	Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio
title_full	Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio
title_fullStr	Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio
title_full_unstemmed	Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio
title_sort	prediction and inhibition of inorganic salt formation under static and dynamic conditions – effect of pressure, temperature, and mixing ratio
publisher	Universitas Indonesia
series	International Journal of Technology
issn	2086-9614 2087-2100
publishDate	2016-10-01
description	As a result of waterflooding, inorganic salt precipitation occurs in the different parts of an oil production system, thereby leading to damage of production equipment. Different parameters affect the kinetics of salt precipitation. Scale inhibitors are widely used to prevent inorganic salt formation. In this study, the effect of reservoir pressure, temperature, and mixing ratio of injection to formation water on calcium sulfate and barium sulfate precipitation was investigated. For this purpose, two different formation waters and one injection water were used. In addition, the effect of temperature and mixing ratio on inhibition performance was studied. Four different existing industrial scale inhibitors and one new scale inhibitor were used. The performance of the scale inhibitors was determined under static and dynamic conditions. Results of the study showed that calcium sulfate precipitation increased with an increase in temperature and a decrease in pressure. Barium sulfate precipitation was found to increase with a decrease in the temperature. The effect of pressure on barium sulfate formation was negligible. The developed scale inhibitor showed the highest performance for the prevention of calcium sulfate and barium sulfate formation. A change in temperature from 60°C to 120°C reduced the inhibitor performance by 3%. In the cases of calcium sulfate and barium sulfate, the minimum performance of the scale inhibitor was observed when the mixing ratios of injection to formation waters were 60:40 and 50:50, respectively.
topic	Formation damage Formation water Injection water Salt precipitation Scale inhibitor
url	http://ijtech.eng.ui.ac.id/article/view/328
work_keys_str_mv	AT azizollahkhormali predictionandinhibitionofinorganicsaltformationunderstaticanddynamicconditionseffectofpressuretemperatureandmixingratio AT dmitrygpetrakov predictionandinhibitionofinorganicsaltformationunderstaticanddynamicconditionseffectofpressuretemperatureandmixingratio AT anarrfarmanzade predictionandinhibitionofinorganicsaltformationunderstaticanddynamicconditionseffectofpressuretemperatureandmixingratio
_version_	1725937383537377280

Prediction and Inhibition of Inorganic Salt Formation under Static and Dynamic Conditions – Effect of Pressure, Temperature, and Mixing Ratio

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