Comparison of Asphaltene Models in Two Commercial Compositional Simulators

The many challenges that engineers face during production from hydrocarbon reserviors due to asphaltene deposition show the importance of addressing this phenomenon in the management of reservoirs and adopting production policies. Simulation, as one of the most economic ways of reservoir studies cou...

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Main Authors: Sedigheh Izadi, Mohammad Jafarzadegan
Format: Article
Language:English
Published: Reaserch Institute of Petroleum Industry 2021-10-01
Series:Journal of Petroleum Science and Technology
Subjects:
Online Access:https://jpst.ripi.ir/article_1245_9cb06a9faed49920eeb13b14cece3448.pdf
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author Sedigheh Izadi
Mohammad Jafarzadegan
author_facet Sedigheh Izadi
Mohammad Jafarzadegan
author_sort Sedigheh Izadi
collection DOAJ
description The many challenges that engineers face during production from hydrocarbon reserviors due to asphaltene deposition show the importance of addressing this phenomenon in the management of reservoirs and adopting production policies. Simulation, as one of the most economic ways of reservoir studies could be done using various software packages. It is clear that each of these simulators has its own strengths and limitations that should be carefully examined and recognized. This study addresses the differences between the asphaltene models of two commercially used compositional simulators and the challenges thereof. It is done using a 3D sector model built on real data from one of the Iranian South oil reservoirs so that the final results resemble the reality of the reservoir. In addition, the simple scenario of natural depletion is considered for production from an undersaturated oil reservoir. The fluid model which is used in both simulators is the solid model implemented in WinProp and in-house software (PVT-Pro). Moreover, the same thermodynamic model has been deployed in both asphaltene models (PR-EOS). Different cases were run to demonstrate the extent of influencing the reservoir by how each simulator models the asphaltene phenomenon. As a result, porosity/permeability reduction, viscosity change, and wettability alteration were described in both simulators. Finally, both simulators are compared regarding whether can describe the final changes caused by asphaltene precipitation and deposition. In the end, the speed of each simulation run is also investigated.
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spelling doaj.art-cec7e299bb214056adee37666fd3f9062022-12-22T04:30:57ZengReaserch Institute of Petroleum IndustryJournal of Petroleum Science and Technology2251-659X2645-33122021-10-01114435410.22078/jpst.2022.4746.17891245Comparison of Asphaltene Models in Two Commercial Compositional SimulatorsSedigheh Izadi0Mohammad Jafarzadegan1Petroleum Engineering Department, National Iranian South Oil Company, Ahwaz, IranPetroleum Engineering Department, National Iranian South Oil Company, Ahwaz, IranThe many challenges that engineers face during production from hydrocarbon reserviors due to asphaltene deposition show the importance of addressing this phenomenon in the management of reservoirs and adopting production policies. Simulation, as one of the most economic ways of reservoir studies could be done using various software packages. It is clear that each of these simulators has its own strengths and limitations that should be carefully examined and recognized. This study addresses the differences between the asphaltene models of two commercially used compositional simulators and the challenges thereof. It is done using a 3D sector model built on real data from one of the Iranian South oil reservoirs so that the final results resemble the reality of the reservoir. In addition, the simple scenario of natural depletion is considered for production from an undersaturated oil reservoir. The fluid model which is used in both simulators is the solid model implemented in WinProp and in-house software (PVT-Pro). Moreover, the same thermodynamic model has been deployed in both asphaltene models (PR-EOS). Different cases were run to demonstrate the extent of influencing the reservoir by how each simulator models the asphaltene phenomenon. As a result, porosity/permeability reduction, viscosity change, and wettability alteration were described in both simulators. Finally, both simulators are compared regarding whether can describe the final changes caused by asphaltene precipitation and deposition. In the end, the speed of each simulation run is also investigated.https://jpst.ripi.ir/article_1245_9cb06a9faed49920eeb13b14cece3448.pdfasphaltene precipitationcompositional simulatordepositionporosity effectwettability alteration
spellingShingle Sedigheh Izadi
Mohammad Jafarzadegan
Comparison of Asphaltene Models in Two Commercial Compositional Simulators
Journal of Petroleum Science and Technology
asphaltene precipitation
compositional simulator
deposition
porosity effect
wettability alteration
title Comparison of Asphaltene Models in Two Commercial Compositional Simulators
title_full Comparison of Asphaltene Models in Two Commercial Compositional Simulators
title_fullStr Comparison of Asphaltene Models in Two Commercial Compositional Simulators
title_full_unstemmed Comparison of Asphaltene Models in Two Commercial Compositional Simulators
title_short Comparison of Asphaltene Models in Two Commercial Compositional Simulators
title_sort comparison of asphaltene models in two commercial compositional simulators
topic asphaltene precipitation
compositional simulator
deposition
porosity effect
wettability alteration
url https://jpst.ripi.ir/article_1245_9cb06a9faed49920eeb13b14cece3448.pdf
work_keys_str_mv AT sedighehizadi comparisonofasphaltenemodelsintwocommercialcompositionalsimulators
AT mohammadjafarzadegan comparisonofasphaltenemodelsintwocommercialcompositionalsimulators