Numerical simulation of the dynamic migration mechanism and prediction of saturation of tight sandstone oil

doi:10.1007/s11430-023-1202-1

IMECH-IR > 流固耦合系统力学重点实验室

	Numerical simulation of the dynamic migration mechanism and prediction of saturation of tight sandstone oil
	Cao GH(曹高辉)1 ; Lin M(林缅)1,2 ; Zhang, Likuan 3; Ji LL(姬莉莉)1,2 ; Jiang WB(江文滨)1,2
通讯作者	Lin, Mian(linmian@imech.ac.cn)
发表期刊	SCIENCE CHINA-EARTH SCIENCES
	2024
卷号	67 期号:1 页码:179-195
ISSN	1674-7313
摘要	Quantitative characterization of tight sandstone oil migration and accumulation is an emerging research frontier in the field of oil and gas exploration. In this study, a conceptual model containing multiple basic geological elements is developed, and a nonlinear seepage numerical model for tight sandstone oil migration and accumulation is established. The effects of the slip effect, overpressure driving force, buoyancy, and capillary force on the migration and accumulation of tight oil are examined. The results showed that (1) the differences in oil migration and accumulation between tight and conventional reservoirs are reflected in the growth mode of oil saturation, distribution characteristics of oil and water, and extent of the effect of the formation dip angle; (2) the slip effect has a significant impact when the average pore throat radius is less than 150 nm and the overpressure driving force and capillary force are the main mechanical mechanisms controlling oil migration and accumulation in tight sandstone, while the coupling effect of buoyancy, capillary force, and overpressure driving force controls the upper and lower limits of oil saturation. Finally, a dimensional and dimensionless identification chart for rapidly predicting the oil saturation of tight sandstone is proposed and verified using the measured data. This study provides a basis for analyzing the migration and accumulation mechanisms of tight sandstone oil and a new approach for predicting oil saturation. Additionally, we developed digital and visual analysis methods for the migration results, enriching the expression of the dynamics of hydrocarbon accumulation.
关键词	Tight sandstone Migration and accumulation Dynamics Oil saturation Numerical simulation
DOI	10.1007/s11430-023-1202-1
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001127229400005
关键词[WOS]	TRIASSIC YANCHANG FORMATION ; ORDOS BASIN ; GAS-RESERVOIR ; FLOW ; AREA
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
资助项目	Institute of Energy of Peking University ; National Natural Science Foundation of China[42030808] ; National Natural Science Foundation of China[41690132] ; National Natural Science Foundation of China[41872163] ; National Natural Science Foundation of China[52242402] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010304]
项目资助者	Institute of Energy of Peking University ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
论文分区	一类
力学所作者排名	1
RpAuthor	Lin, Mian
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94016
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Cao GH,Lin M,Zhang, Likuan,et al. Numerical simulation of the dynamic migration mechanism and prediction of saturation of tight sandstone oil[J]. SCIENCE CHINA-EARTH SCIENCES,2024,67,1,:179-195.
APA	曹高辉,林缅,Zhang, Likuan,姬莉莉,&江文滨.(2024).Numerical simulation of the dynamic migration mechanism and prediction of saturation of tight sandstone oil.SCIENCE CHINA-EARTH SCIENCES,67(1),179-195.
MLA	曹高辉,et al."Numerical simulation of the dynamic migration mechanism and prediction of saturation of tight sandstone oil".SCIENCE CHINA-EARTH SCIENCES 67.1(2024):179-195.