Shale Oil-Water Two-Phase Flow Simulation Based on Pore Network Modeling

doi:10.1115/1.4063999

IMECH-IR > 流固耦合系统力学重点实验室

	Shale Oil-Water Two-Phase Flow Simulation Based on Pore Network Modeling
	Zhang, Guoqing; Zhou, Zhijun; Cui CX(崔春雪); Zhang, Jian; Wang, Jingyi
通讯作者	Zhou, Zhijun(sygc423@163.com)
发表期刊	JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
	2024-02-01
卷号	146 期号:2 页码:10
ISSN	0195-0738
摘要	With the growing significance of shale oil in the realm of oil and gas resources, there has been a heightened focus on the impact of the indeterminate oil-water two-phase flow behavior in shale reservoirs on the effective exploitation of shale oil. The utilization of FIB-SEM scanning on shale samples enables the establishment of the real pore network structure and facilitates the analysis of pore type, pore throat size and connectivity of shale reservoirs through the implementation of two-dimensional slices. Subsequently, the gridded connectivity-based pore network model is utilized to conduct oil-water two-phase flow simulation, wherein the L-S and N-S mathematical models are incorporated to quantitatively examine the correlation between the displacement pressure and wettability and the recovery degree and remaining oil, as well as the impact of throat size on pressure loss. The research findings indicate the emergence of five distinctive pore types in shale reservoirs, namely intergranular pores, dissolution pores, intercrystalline pores, intracrystalline pores, and microfractures. In shale reservoirs with poor connectivity, a significant quantity of nanometer-scale pores are generated, wherein the seepage capacity is primarily influenced by the size and connectivity of pore throats. The smaller the throat size is, the greater the displacement pressure will be and the greater the pressure drop will be after the throat is passed through. To prevent fingering and excessive pressure drop, it is necessary to maintain reasonable control over the displacement pressure. The displacement efficiency is optimal when the wall surface is in a water-wet state. Therefore, enhancing the wettability of the surface can facilitate the efficient recovery of the remaining oil in the microscopic pore throats. The research findings offer valuable theoretical insights for the efficient exploitation of shale oil resources.
关键词	shale oil digital core pore structure flow simulation
DOI	10.1115/1.4063999
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001133486100012
关键词[WOS]	POROUS-MEDIA ; WETTABILITY ; ADSORPTION ; PRESSURE
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
资助项目	China National Science and Technology projects[2016ZX05012-002-002] ; Northeast Petroleum University National Fund Foundation Project[2018GPYB-02]
项目资助者	China National Science and Technology projects ; Northeast Petroleum University National Fund Foundation Project
论文分区	Q3
力学所作者排名	3
RpAuthor	Zhou, Zhijun
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94074
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Zhang, Guoqing,Zhou, Zhijun,Cui CX,et al. Shale Oil-Water Two-Phase Flow Simulation Based on Pore Network Modeling[J]. JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME,2024,146,2,:10.
APA	Zhang, Guoqing,Zhou, Zhijun,崔春雪,Zhang, Jian,&Wang, Jingyi.(2024).Shale Oil-Water Two-Phase Flow Simulation Based on Pore Network Modeling.JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME,146(2),10.
MLA	Zhang, Guoqing,et al."Shale Oil-Water Two-Phase Flow Simulation Based on Pore Network Modeling".JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME 146.2(2024):10.