An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures

Tight reservoirs are a major focus of unconventional reservoir development. As a means to improve hydrocarbon recovery from tight reservoirs, imbibition has been received increasing attentions in recent years. This study evaluates how the changes in temperature and pressure affect imbibition through...

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Autores principales:	Yisheng Liang, Fengpeng Lai, Yuting Dai, Hao Shi, Gongshuai Shi
Formato:	article
Lenguaje:	EN
Publicado:	Yandy Scientific Press 2021
Materias:	imbibition tight reservoir ﬂuid distribution pore-size distribution Physics QC1-999
Acceso en línea:	https://doaj.org/article/71674005595549c0bf5a997b95a6dfea
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spelling	oai:doaj.org-article:71674005595549c0bf5a997b95a6dfea2021-11-08T03:01:50ZAn experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures10.46690/capi.2021.04.022652-3310https://doaj.org/article/71674005595549c0bf5a997b95a6dfea2021-12-01T00:00:00Zhttps://www.yandy-ager.com/index.php/cap/article/view/356https://doaj.org/toc/2652-3310Tight reservoirs are a major focus of unconventional reservoir development. As a means to improve hydrocarbon recovery from tight reservoirs, imbibition has been received increasing attentions in recent years. This study evaluates how the changes in temperature and pressure affect imbibition through conducting experimental tests under various conditions on samples from the Yan Chang formation, a tight reservoir in Ordos Basin. The ﬂuid distribution is compared before and after imbibition in core samples by nuclear magnetic resonance method. The results show that the imbibition recovery is signiﬁcantly improved through increasing temperature and pressure. A high temperature facilitates molecular thermal movements, increasing oil-water exchange rate. The core samples are characterized with nano-mesopores, which is followed by nano-macropores, micropores, mesopores, and nano-micropores. Comparative analysis of nuclear magnetic resonance shows that the irreducible water saturation increases after imbibition and is mainly distributed in nano-pores. Increasing pressure increases the amount of residual water in nano pores, with the relatively more signiﬁcant increase in the amount of residual water in nanomacro-pores compared with other types of pores.Yisheng LiangFengpeng LaiYuting DaiHao ShiGongshuai ShiYandy Scientific Pressarticleimbibitiontight reservoirﬂuid distributionpore-size distributionPhysicsQC1-999ENCapillarity, Vol 4, Iss 4, Pp 66-75 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	imbibition tight reservoir ﬂuid distribution pore-size distribution Physics QC1-999
spellingShingle	imbibition tight reservoir ﬂuid distribution pore-size distribution Physics QC1-999 Yisheng Liang Fengpeng Lai Yuting Dai Hao Shi Gongshuai Shi An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures
description	Tight reservoirs are a major focus of unconventional reservoir development. As a means to improve hydrocarbon recovery from tight reservoirs, imbibition has been received increasing attentions in recent years. This study evaluates how the changes in temperature and pressure affect imbibition through conducting experimental tests under various conditions on samples from the Yan Chang formation, a tight reservoir in Ordos Basin. The ﬂuid distribution is compared before and after imbibition in core samples by nuclear magnetic resonance method. The results show that the imbibition recovery is signiﬁcantly improved through increasing temperature and pressure. A high temperature facilitates molecular thermal movements, increasing oil-water exchange rate. The core samples are characterized with nano-mesopores, which is followed by nano-macropores, micropores, mesopores, and nano-micropores. Comparative analysis of nuclear magnetic resonance shows that the irreducible water saturation increases after imbibition and is mainly distributed in nano-pores. Increasing pressure increases the amount of residual water in nano pores, with the relatively more signiﬁcant increase in the amount of residual water in nanomacro-pores compared with other types of pores.
format	article
author	Yisheng Liang Fengpeng Lai Yuting Dai Hao Shi Gongshuai Shi
author_facet	Yisheng Liang Fengpeng Lai Yuting Dai Hao Shi Gongshuai Shi
author_sort	Yisheng Liang
title	An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures
title_short	An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures
title_full	An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures
title_fullStr	An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures
title_full_unstemmed	An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures
title_sort	experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures
publisher	Yandy Scientific Press
publishDate	2021
url	https://doaj.org/article/71674005595549c0bf5a997b95a6dfea
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An experimental study of imbibition process and ﬂuid distribution in tight oil reservoir under different pressures and temperatures

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