Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement

Abstract Dimethyl ether (DME) is a widely used industrial compound, and Shell developed a chemical EOR technique called DME-enhanced waterflood (DEW). DME is applied as a miscible solvent for EOR application to enhance the performance of conventional waterflood. When DME is injected into the reservo...

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Autores principales: Jinhyung Cho, Tae Hong Kim, Kun Sang Lee
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Lenguaje:EN
Publicado: KeAi Communications Co., Ltd. 2018
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Acceso en línea:https://doaj.org/article/d08d43f76853469bb692b264ef04d2de
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spelling oai:doaj.org-article:d08d43f76853469bb692b264ef04d2de2021-12-02T02:17:29ZCompositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement10.1007/s12182-017-0212-z1672-51071995-8226https://doaj.org/article/d08d43f76853469bb692b264ef04d2de2018-01-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0212-zhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Dimethyl ether (DME) is a widely used industrial compound, and Shell developed a chemical EOR technique called DME-enhanced waterflood (DEW). DME is applied as a miscible solvent for EOR application to enhance the performance of conventional waterflood. When DME is injected into the reservoir and contacts the oil, the first-contact miscibility process occurs, which leads to oil swelling and viscosity reduction. The reduction in oil density and viscosity improves oil mobility and reduces residual oil saturation, enhancing oil production. A numerical study based on compositional simulation has been developed to describe the phase behavior in the DEW model. An accurate compositional model is imperative because DME has a unique advantage of solubility in both oil and water. For DEW, oil recovery increased by 34% and 12% compared to conventional waterflood and CO2 flood, respectively. Compositional modeling and simulation of the DEW process indicated the unique solubility effect of DME on EOR performance.Jinhyung ChoTae Hong KimKun Sang LeeKeAi Communications Co., Ltd.articleDimethyl ether (DME)DME-enhanced waterflood (DEW)SolubilityOil mobilityScienceQPetrologyQE420-499ENPetroleum Science, Vol 15, Iss 2, Pp 297-304 (2018)
institution DOAJ
collection DOAJ
language EN
topic Dimethyl ether (DME)
DME-enhanced waterflood (DEW)
Solubility
Oil mobility
Science
Q
Petrology
QE420-499
spellingShingle Dimethyl ether (DME)
DME-enhanced waterflood (DEW)
Solubility
Oil mobility
Science
Q
Petrology
QE420-499
Jinhyung Cho
Tae Hong Kim
Kun Sang Lee
Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement
description Abstract Dimethyl ether (DME) is a widely used industrial compound, and Shell developed a chemical EOR technique called DME-enhanced waterflood (DEW). DME is applied as a miscible solvent for EOR application to enhance the performance of conventional waterflood. When DME is injected into the reservoir and contacts the oil, the first-contact miscibility process occurs, which leads to oil swelling and viscosity reduction. The reduction in oil density and viscosity improves oil mobility and reduces residual oil saturation, enhancing oil production. A numerical study based on compositional simulation has been developed to describe the phase behavior in the DEW model. An accurate compositional model is imperative because DME has a unique advantage of solubility in both oil and water. For DEW, oil recovery increased by 34% and 12% compared to conventional waterflood and CO2 flood, respectively. Compositional modeling and simulation of the DEW process indicated the unique solubility effect of DME on EOR performance.
format article
author Jinhyung Cho
Tae Hong Kim
Kun Sang Lee
author_facet Jinhyung Cho
Tae Hong Kim
Kun Sang Lee
author_sort Jinhyung Cho
title Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement
title_short Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement
title_full Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement
title_fullStr Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement
title_full_unstemmed Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement
title_sort compositional modeling and simulation of dimethyl ether (dme)-enhanced waterflood to investigate oil mobility improvement
publisher KeAi Communications Co., Ltd.
publishDate 2018
url https://doaj.org/article/d08d43f76853469bb692b264ef04d2de
work_keys_str_mv AT jinhyungcho compositionalmodelingandsimulationofdimethyletherdmeenhancedwaterfloodtoinvestigateoilmobilityimprovement
AT taehongkim compositionalmodelingandsimulationofdimethyletherdmeenhancedwaterfloodtoinvestigateoilmobilityimprovement
AT kunsanglee compositionalmodelingandsimulationofdimethyletherdmeenhancedwaterfloodtoinvestigateoilmobilityimprovement
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