Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods

Abstract In recent decades, Enhanced Oil Recovery (EOR) has emerged as a primary method to increase reservoir oil recovery rates. One of these methods involves injecting miscible and immiscible gases. In miscible gas injection, the minimum miscibility pressure (MMP) is crucial, representing the crit...

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Main Authors: Ali Akbari, Ali Ranjbar, Yousef Kazemzadeh, Fatemeh Mohammadinia, Amirjavad Borhani
Format: Article
Language:English
Published: SpringerOpen 2025-02-01
Series:Journal of Petroleum Exploration and Production Technology
Subjects:
Online Access:https://doi.org/10.1007/s13202-024-01915-3
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author Ali Akbari
Ali Ranjbar
Yousef Kazemzadeh
Fatemeh Mohammadinia
Amirjavad Borhani
author_facet Ali Akbari
Ali Ranjbar
Yousef Kazemzadeh
Fatemeh Mohammadinia
Amirjavad Borhani
author_sort Ali Akbari
collection DOAJ
description Abstract In recent decades, Enhanced Oil Recovery (EOR) has emerged as a primary method to increase reservoir oil recovery rates. One of these methods involves injecting miscible and immiscible gases. In miscible gas injection, the minimum miscibility pressure (MMP) is crucial, representing the critical pressure at which these gases can mix effectively with the oil phase. However, accurately determining the minimum pressure required for CO2 to miscible combine with the oil phase has always been a significant challenge. Various methods, including slim-tube tests, analytical models, and empirical correlations, are employed to determine MMP. Nevertheless, experimental measurements are time-consuming and costly. At the same time, mathematical models may yield different estimations. This study introduces an innovative approach using machine learning (ML) techniques to determine CO2-MMP during CO2 flooding. These methods produce reliable models, and advanced CO2-MMP techniques have demonstrated improved performance, significantly reducing time and costs. Furthermore, ML algorithms such as Artificial Neural Networks (ANN), Bayesian networks, Random Forest (RF), Support Vector Machine (SVM), LSBoost, and Linear Regression (LR) were employed to estimate MMP. Input data for these algorithms include CO2, H2S, N2, C1, C2, C3, C4, C5, C6, C7+, MWC5+, MWC7+, T, alongside vol/int. Comparative analysis with experimental MMP data revealed that the Glaso method achieves an accuracy of 0.8749, among the most precise methods, while SVM performed best among the mentioned ML algorithms with an accuracy of 0.986 and RMSE of 0.027.
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institution Kabale University
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spelling doaj-art-26734121197e41448383f94358f76f7a2025-02-09T12:13:38ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662025-02-0115212410.1007/s13202-024-01915-3Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methodsAli Akbari0Ali Ranjbar1Yousef Kazemzadeh2Fatemeh Mohammadinia3Amirjavad Borhani4Department of Petroleum Engineering, Faculty of Petroleum, Gas, and Petrochemical Engineering, Persian Gulf UniversityDepartment of Petroleum Engineering, Faculty of Petroleum, Gas, and Petrochemical Engineering, Persian Gulf UniversityDepartment of Petroleum Engineering, Faculty of Petroleum, Gas, and Petrochemical Engineering, Persian Gulf UniversityDepartment of Petroleum Engineering, Faculty of Petroleum, Gas, and Petrochemical Engineering, Persian Gulf UniversityDepartment of Petroleum Engineering, Faculty of Petroleum, Gas, and Petrochemical Engineering, Persian Gulf UniversityAbstract In recent decades, Enhanced Oil Recovery (EOR) has emerged as a primary method to increase reservoir oil recovery rates. One of these methods involves injecting miscible and immiscible gases. In miscible gas injection, the minimum miscibility pressure (MMP) is crucial, representing the critical pressure at which these gases can mix effectively with the oil phase. However, accurately determining the minimum pressure required for CO2 to miscible combine with the oil phase has always been a significant challenge. Various methods, including slim-tube tests, analytical models, and empirical correlations, are employed to determine MMP. Nevertheless, experimental measurements are time-consuming and costly. At the same time, mathematical models may yield different estimations. This study introduces an innovative approach using machine learning (ML) techniques to determine CO2-MMP during CO2 flooding. These methods produce reliable models, and advanced CO2-MMP techniques have demonstrated improved performance, significantly reducing time and costs. Furthermore, ML algorithms such as Artificial Neural Networks (ANN), Bayesian networks, Random Forest (RF), Support Vector Machine (SVM), LSBoost, and Linear Regression (LR) were employed to estimate MMP. Input data for these algorithms include CO2, H2S, N2, C1, C2, C3, C4, C5, C6, C7+, MWC5+, MWC7+, T, alongside vol/int. Comparative analysis with experimental MMP data revealed that the Glaso method achieves an accuracy of 0.8749, among the most precise methods, while SVM performed best among the mentioned ML algorithms with an accuracy of 0.986 and RMSE of 0.027.https://doi.org/10.1007/s13202-024-01915-3Gas injectionMiscible pressure (MMP)Carbon dioxide gas (CO2)Experimental methodsMachine learning (ML)
spellingShingle Ali Akbari
Ali Ranjbar
Yousef Kazemzadeh
Fatemeh Mohammadinia
Amirjavad Borhani
Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods
Journal of Petroleum Exploration and Production Technology
Gas injection
Miscible pressure (MMP)
Carbon dioxide gas (CO2)
Experimental methods
Machine learning (ML)
title Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods
title_full Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods
title_fullStr Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods
title_full_unstemmed Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods
title_short Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods
title_sort estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods
topic Gas injection
Miscible pressure (MMP)
Carbon dioxide gas (CO2)
Experimental methods
Machine learning (ML)
url https://doi.org/10.1007/s13202-024-01915-3
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