Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir Acidizing

After the carbonate reservoir acidizing and the damaged wellbore stimulating, the pH of the environment has particular importance in reducing corrosion during production. In this study, the pH change after the calcium carbonate and hydrochloric acid reaction was modeled, and the optimum pH after the...

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Main Authors: Amin Ahmadi, Kaveh Paydar, Ali Ebadi, Mehrdad Manteghian
Format: Article
Language:English
Published: University of Tehran 2022-12-01
Series:Journal of Chemical and Petroleum Engineering
Subjects:
Online Access:https://jchpe.ut.ac.ir/article_89882.html
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author Amin Ahmadi
Kaveh Paydar
Ali Ebadi
Mehrdad Manteghian
author_facet Amin Ahmadi
Kaveh Paydar
Ali Ebadi
Mehrdad Manteghian
author_sort Amin Ahmadi
collection DOAJ
description After the carbonate reservoir acidizing and the damaged wellbore stimulating, the pH of the environment has particular importance in reducing corrosion during production. In this study, the pH change after the calcium carbonate and hydrochloric acid reaction was modeled, and the optimum pH after the reaction was determined. Also, the effect of temperature HCl concentration and calcium carbonate grain size on final pH was investigated. According to the findings, an increase in temperature causes an increase in final pH. The effect of concentration is against temperature, and pH decreases with increasing concentration. Also, the grain size of calcium carbonate particles has an insignificant effect on pH alteration. Hence, the maximum pH in all grain sizes occurs at 70 oC and 1.95 wt.% HCl and equals 6.7. The R square, adjusted R square, and predicted R square of the models are acceptable values and show that experimental data agrees with prediction data.
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spelling doaj.art-be79c0e148644b6781d3c565215fc3be2023-02-09T11:29:07ZengUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X2423-67212022-12-0156233133910.22059/JCHPE.2022.342154.1391Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir AcidizingAmin Ahmadi0Kaveh Paydar1Ali Ebadi2Mehrdad Manteghian3Department of Petroleum Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, IranDepartment of Petroleum Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, IranDepartment of Chemical Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, IranDepartment of Chemical Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, IranAfter the carbonate reservoir acidizing and the damaged wellbore stimulating, the pH of the environment has particular importance in reducing corrosion during production. In this study, the pH change after the calcium carbonate and hydrochloric acid reaction was modeled, and the optimum pH after the reaction was determined. Also, the effect of temperature HCl concentration and calcium carbonate grain size on final pH was investigated. According to the findings, an increase in temperature causes an increase in final pH. The effect of concentration is against temperature, and pH decreases with increasing concentration. Also, the grain size of calcium carbonate particles has an insignificant effect on pH alteration. Hence, the maximum pH in all grain sizes occurs at 70 oC and 1.95 wt.% HCl and equals 6.7. The R square, adjusted R square, and predicted R square of the models are acceptable values and show that experimental data agrees with prediction data.https://jchpe.ut.ac.ir/article_89882.htmlacidizingcarbonate reservoirstimulationhclph
spellingShingle Amin Ahmadi
Kaveh Paydar
Ali Ebadi
Mehrdad Manteghian
Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir Acidizing
Journal of Chemical and Petroleum Engineering
acidizing
carbonate reservoir
stimulation
hcl
ph
title Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir Acidizing
title_full Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir Acidizing
title_fullStr Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir Acidizing
title_full_unstemmed Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir Acidizing
title_short Study and Optimization of the Effect of Temperature, Acid Concentration, and Rock Grain Size on the pH of Carbonate Reservoir Acidizing
title_sort study and optimization of the effect of temperature acid concentration and rock grain size on the ph of carbonate reservoir acidizing
topic acidizing
carbonate reservoir
stimulation
hcl
ph
url https://jchpe.ut.ac.ir/article_89882.html
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