A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs

Abstract To model foamy-oil flow in the development of heavy oil reservoirs, three depletion experiments were conducted with foamy oil treated as a pseudo-single-phase flow. In this pseudo single phase, dispersed bubbles are viewed as a part of the oil, and the redefined effective permeability varie...

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Autores principales:	Pengcheng Liu, Zhenbao Mu, Wenhui Li, Yongbin Wu, Xiuluan Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bbde2fdc87bd4f7da170fb37603fe3d1
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spelling	oai:doaj.org-article:bbde2fdc87bd4f7da170fb37603fe3d12021-12-02T11:41:19ZA new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs10.1038/s41598-017-08882-22045-2322https://doaj.org/article/bbde2fdc87bd4f7da170fb37603fe3d12017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08882-2https://doaj.org/toc/2045-2322Abstract To model foamy-oil flow in the development of heavy oil reservoirs, three depletion experiments were conducted with foamy oil treated as a pseudo-single-phase flow. In this pseudo single phase, dispersed bubbles are viewed as a part of the oil, and the redefined effective permeability varies with the changes of pressure depletion rate, oil viscosity, and gas saturation. A mathematical expression for the effective permeability was developed based on experiments, where the viscosity of foamy oil is assumed to be approximately equal to the saturated oil under equivalent conditions. The compressibility coefficient of foamy oil is treated as a volume-weighted compressibility coefficient of that of oil and gas phases. A new mathematical model for foamy-oil flow was proposed with consideration of foamy-oil supersaturation. To validate the mathematical model, the oil recovery and the production gas-oil ratio (GOR) calculated by the new model, conventional black oil model, supersaturation model and pseudo-bubble-point (PBP) model were all compared with those of the experimental data. The new model provided a substantially improved fit to the experimental data compared with the rest three models, which verifies the suitability of the mathematical model presented for simulating foamy-oil flow in the development of heavy oil reservoirs.Pengcheng LiuZhenbao MuWenhui LiYongbin WuXiuluan LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pengcheng Liu Zhenbao Mu Wenhui Li Yongbin Wu Xiuluan Li A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs
description	Abstract To model foamy-oil flow in the development of heavy oil reservoirs, three depletion experiments were conducted with foamy oil treated as a pseudo-single-phase flow. In this pseudo single phase, dispersed bubbles are viewed as a part of the oil, and the redefined effective permeability varies with the changes of pressure depletion rate, oil viscosity, and gas saturation. A mathematical expression for the effective permeability was developed based on experiments, where the viscosity of foamy oil is assumed to be approximately equal to the saturated oil under equivalent conditions. The compressibility coefficient of foamy oil is treated as a volume-weighted compressibility coefficient of that of oil and gas phases. A new mathematical model for foamy-oil flow was proposed with consideration of foamy-oil supersaturation. To validate the mathematical model, the oil recovery and the production gas-oil ratio (GOR) calculated by the new model, conventional black oil model, supersaturation model and pseudo-bubble-point (PBP) model were all compared with those of the experimental data. The new model provided a substantially improved fit to the experimental data compared with the rest three models, which verifies the suitability of the mathematical model presented for simulating foamy-oil flow in the development of heavy oil reservoirs.
format	article
author	Pengcheng Liu Zhenbao Mu Wenhui Li Yongbin Wu Xiuluan Li
author_facet	Pengcheng Liu Zhenbao Mu Wenhui Li Yongbin Wu Xiuluan Li
author_sort	Pengcheng Liu
title	A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs
title_short	A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs
title_full	A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs
title_fullStr	A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs
title_full_unstemmed	A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs
title_sort	new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/bbde2fdc87bd4f7da170fb37603fe3d1
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A new mathematical model and experimental validation on foamy-oil flow in developing heavy oil reservoirs

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