气候变化领域集成服务门户(CCPortal): Investigation of Spontaneous Imbibition Behavior in a 3D Pore Space Under Reservoir Condition by Lattice Boltzmann Method

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DOI	10.1029/2021JB021987
	Investigation of Spontaneous Imbibition Behavior in a 3D Pore Space Under Reservoir Condition by Lattice Boltzmann Method
	Zheng J.; Lei W.; Ju Y.; Wang M.
发表日期	2021
ISSN	21699313
卷号	126 期号:6
英文摘要	Spontaneous imbibition (SI) of the injected fluid into the pore space of a tight oil reservoir and replacing the crude oil therein has been considered as one of the possible mechanisms in increasing oil recovery. Such deeply buried reservoir rocks is usually under high-pressure and high-temperature conditions. Besides, their interior porous structures are usually characterized as irregular pore bodies and slit-shaped pore throats. As a result, an accurate description of the SI behavior driven by capillary force in the real pore space under reservoir conditions is crucial to understand the process and uncover the controlling mechanisms. An improved multi-component pseudo-potential lattice Boltzmann method was developed to simulate the SI behavior in a representative 3D pore space extracted from a tight sandstone reservoir rock. Comparison of the SI behavior under ambient condition and reservoir condition showed that the latter case exhibited two times faster of the imbibition. Moreover, a snap-off of the oil droplet phenomenon was observed in the pore bodies surrounded by slit-shaped pore throats. The snap-off oil droplets stuck in pore bodies accounted for 9.47% of the pore volume. These results indicated the importance of investigating the SI in a real porous structure and under actual reservoir condition. The proposed pore-scale simulation method provides a useful tool in understanding the complex SI pattern and the resulted enhanced oil recovery. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	lattice Boltzmann method; pore-scale modeling; reservoir condition; spontaneous imbibition
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187066
作者单位	State Key Laboratory of Coal Resources and Safe Mining, China University of Mining & Technology, Beijing, China; Department of Engineering Mechanics, Tsinghua University, Beijing, China; State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou, China
推荐引用方式 GB/T 7714	Zheng J.,Lei W.,Ju Y.,et al. Investigation of Spontaneous Imbibition Behavior in a 3D Pore Space Under Reservoir Condition by Lattice Boltzmann Method[J],2021,126(6).
APA	Zheng J.,Lei W.,Ju Y.,&Wang M..(2021).Investigation of Spontaneous Imbibition Behavior in a 3D Pore Space Under Reservoir Condition by Lattice Boltzmann Method.Journal of Geophysical Research: Solid Earth,126(6).
MLA	Zheng J.,et al."Investigation of Spontaneous Imbibition Behavior in a 3D Pore Space Under Reservoir Condition by Lattice Boltzmann Method".Journal of Geophysical Research: Solid Earth 126.6(2021).