An Exponential Solvent Chamber Geometry for Modeling the VAPEX Process

Accurate simulation of the VAPEX process relies heavily on precise modeling of the solvent chamber propagation. In the previously developed models, the solvent chamber possesses either a linear, circular, or parabolic shape. In this study, an exponential solvent chamber model was considered to repre...

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Main Authors: Ali Cheperli, Farshid Torabi, Morteza Sabeti, Aria Rahimbakhsh
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/16/5874
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author Ali Cheperli
Farshid Torabi
Morteza Sabeti
Aria Rahimbakhsh
author_facet Ali Cheperli
Farshid Torabi
Morteza Sabeti
Aria Rahimbakhsh
author_sort Ali Cheperli
collection DOAJ
description Accurate simulation of the VAPEX process relies heavily on precise modeling of the solvent chamber propagation. In the previously developed models, the solvent chamber possesses either a linear, circular, or parabolic shape. In this study, an exponential solvent chamber model was considered to represent the propagation of the chamber throughout the spreading and falling stages of the VAPEX process. The tuning parameters of the proposed model include the exponential function coefficient and the transition region thickness. These parameters are altered by employing a MATLAB-based Genetic Algorithm (GA) to minimize the error between determined and measured cumulative produced oil in four experimental case studies presented in the literature. According to the outcomes, the proposed method can accurately adjust the cumulative produced oil to the measured values in both spreading and falling stages. Additionally, the thickness of the transition region obtained by this model is in reasonable agreement with the laboratory measurements. Accordingly, the average relative errors of all four cases for cumulative produced oil and transition region thickness are 7.73% and 5.12%, respectively. Consequently, the model estimates the oil production rate with reasonable precision and the predicted solvent chamber shapes are well-aligned with the experimentally observed chambers.
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spelling doaj.art-a1d99d40afd74dbe9557087c4aadd6952023-11-30T21:18:07ZengMDPI AGEnergies1996-10732022-08-011516587410.3390/en15165874An Exponential Solvent Chamber Geometry for Modeling the VAPEX ProcessAli Cheperli0Farshid Torabi1Morteza Sabeti2Aria Rahimbakhsh3Petroleum Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK S4S 0A2, CanadaPetroleum Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK S4S 0A2, CanadaPetroleum Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK S4S 0A2, CanadaPetroleum Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK S4S 0A2, CanadaAccurate simulation of the VAPEX process relies heavily on precise modeling of the solvent chamber propagation. In the previously developed models, the solvent chamber possesses either a linear, circular, or parabolic shape. In this study, an exponential solvent chamber model was considered to represent the propagation of the chamber throughout the spreading and falling stages of the VAPEX process. The tuning parameters of the proposed model include the exponential function coefficient and the transition region thickness. These parameters are altered by employing a MATLAB-based Genetic Algorithm (GA) to minimize the error between determined and measured cumulative produced oil in four experimental case studies presented in the literature. According to the outcomes, the proposed method can accurately adjust the cumulative produced oil to the measured values in both spreading and falling stages. Additionally, the thickness of the transition region obtained by this model is in reasonable agreement with the laboratory measurements. Accordingly, the average relative errors of all four cases for cumulative produced oil and transition region thickness are 7.73% and 5.12%, respectively. Consequently, the model estimates the oil production rate with reasonable precision and the predicted solvent chamber shapes are well-aligned with the experimentally observed chambers.https://www.mdpi.com/1996-1073/15/16/5874VAPEX processsolvent chamber propagationexponential modeltransition region thicknessoil production prediction
spellingShingle Ali Cheperli
Farshid Torabi
Morteza Sabeti
Aria Rahimbakhsh
An Exponential Solvent Chamber Geometry for Modeling the VAPEX Process
Energies
VAPEX process
solvent chamber propagation
exponential model
transition region thickness
oil production prediction
title An Exponential Solvent Chamber Geometry for Modeling the VAPEX Process
title_full An Exponential Solvent Chamber Geometry for Modeling the VAPEX Process
title_fullStr An Exponential Solvent Chamber Geometry for Modeling the VAPEX Process
title_full_unstemmed An Exponential Solvent Chamber Geometry for Modeling the VAPEX Process
title_short An Exponential Solvent Chamber Geometry for Modeling the VAPEX Process
title_sort exponential solvent chamber geometry for modeling the vapex process
topic VAPEX process
solvent chamber propagation
exponential model
transition region thickness
oil production prediction
url https://www.mdpi.com/1996-1073/15/16/5874
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