A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales

Abstract Less than 10% of oil is usually recovered from liquid-rich shales and this leaves much room for improvement, while water injection into shale formation is virtually impossible because of the extremely low permeability of the formation matrix. Injecting carbon dioxide (CO2) into oil shale fo...

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Autores principales:	Sumeer Kalra, Wei Tian, Xingru Wu
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	CO2 EOR Tight formations Experimental design Response surface modeling Recovery of shale liquid CO2 sequestration Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/3f9a4119876443caad14c36379b66888
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spelling	oai:doaj.org-article:3f9a4119876443caad14c36379b668882021-12-02T04:03:57ZA numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales10.1007/s12182-017-0199-51672-51071995-8226https://doaj.org/article/3f9a4119876443caad14c36379b668882017-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0199-5https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Less than 10% of oil is usually recovered from liquid-rich shales and this leaves much room for improvement, while water injection into shale formation is virtually impossible because of the extremely low permeability of the formation matrix. Injecting carbon dioxide (CO2) into oil shale formations can potentially improve oil recovery. Furthermore, the large surface area in organic-rich shale could permanently store CO2 without jeopardizing the formation integrity. This work is a mechanism study of evaluating the effectiveness of CO2-enhanced oil shale recovery and shale formation CO2 sequestration capacity using numerical simulation. Petrophysical and fluid properties similar to the Bakken Formation are used to set up the base model for simulation. Result shows that the CO2 injection could increase the oil recovery factor from 7.4% to 53%. In addition, petrophysical characteristics such as in situ stress changes and presence of a natural fracture network in the shale formation are proven to have impacts on subsurface CO2 flow. A response surface modeling approach was applied to investigate the interaction between parameters and generate a proxy model for optimizing oil recovery and CO2 injectivity.Sumeer KalraWei TianXingru WuKeAi Communications Co., Ltd.articleCO2 EORTight formationsExperimental designResponse surface modelingRecovery of shale liquidCO2 sequestrationScienceQPetrologyQE420-499ENPetroleum Science, Vol 15, Iss 1, Pp 103-115 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	CO2 EOR Tight formations Experimental design Response surface modeling Recovery of shale liquid CO2 sequestration Science Q Petrology QE420-499
spellingShingle	CO2 EOR Tight formations Experimental design Response surface modeling Recovery of shale liquid CO2 sequestration Science Q Petrology QE420-499 Sumeer Kalra Wei Tian Xingru Wu A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales
description	Abstract Less than 10% of oil is usually recovered from liquid-rich shales and this leaves much room for improvement, while water injection into shale formation is virtually impossible because of the extremely low permeability of the formation matrix. Injecting carbon dioxide (CO2) into oil shale formations can potentially improve oil recovery. Furthermore, the large surface area in organic-rich shale could permanently store CO2 without jeopardizing the formation integrity. This work is a mechanism study of evaluating the effectiveness of CO2-enhanced oil shale recovery and shale formation CO2 sequestration capacity using numerical simulation. Petrophysical and fluid properties similar to the Bakken Formation are used to set up the base model for simulation. Result shows that the CO2 injection could increase the oil recovery factor from 7.4% to 53%. In addition, petrophysical characteristics such as in situ stress changes and presence of a natural fracture network in the shale formation are proven to have impacts on subsurface CO2 flow. A response surface modeling approach was applied to investigate the interaction between parameters and generate a proxy model for optimizing oil recovery and CO2 injectivity.
format	article
author	Sumeer Kalra Wei Tian Xingru Wu
author_facet	Sumeer Kalra Wei Tian Xingru Wu
author_sort	Sumeer Kalra
title	A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales
title_short	A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales
title_full	A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales
title_fullStr	A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales
title_full_unstemmed	A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales
title_sort	numerical simulation study of co2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/3f9a4119876443caad14c36379b66888
work_keys_str_mv	AT sumeerkalra anumericalsimulationstudyofco2injectionforenhancinghydrocarbonrecoveryandsequestrationinliquidrichshales AT weitian anumericalsimulationstudyofco2injectionforenhancinghydrocarbonrecoveryandsequestrationinliquidrichshales AT xingruwu anumericalsimulationstudyofco2injectionforenhancinghydrocarbonrecoveryandsequestrationinliquidrichshales AT sumeerkalra numericalsimulationstudyofco2injectionforenhancinghydrocarbonrecoveryandsequestrationinliquidrichshales AT weitian numericalsimulationstudyofco2injectionforenhancinghydrocarbonrecoveryandsequestrationinliquidrichshales AT xingruwu numericalsimulationstudyofco2injectionforenhancinghydrocarbonrecoveryandsequestrationinliquidrichshales
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A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales

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