Numerical simulation of CO<sub>2</sub>-enhanced oil recovery in fractured shale reservoirs using discontinuous and continuous Galerkin finite element methods

doi:10.3389/fenrg.2023.1330290

IMECH-IR > 流固耦合系统力学重点实验室

	Numerical simulation of CO₂-enhanced oil recovery in fractured shale reservoirs using discontinuous and continuous Galerkin finite element methods
	Ma, Tianran; Jiang, Lintong; Liu, Yanbao; Guo, Chaobin; Shen WJ(沈伟军); Xu, Yongli
通讯作者	Liu, Yanbao(yanbao_liu@163.com)
发表期刊	FRONTIERS IN ENERGY RESEARCH
	2024-01-11
卷号	11 页码:13
ISSN	2296-598X
摘要	Introduction: This study explores the potential of enhancing shale oil recovery and reducing CO2 emissions through CO2 injection in fractured shale reservoirs. The importance of this approach lies in its dual benefit: improving oil extraction efficiency and addressing environmental concerns associated with CO2 emissions.Method: We employed a discrete fracture-matrix model to simulate CO2 flooding in fractured shale reservoirs, utilizing both discontinuous Galerkin (DG) and continuous Galerkin (CG) finite element methods. The DG-CG FEM's accuracy was validated against the McWhorter problem, ensuring the reliability of the simulation results. Our model also considered various factors, including reservoir heterogeneity, fracture permeability, CO2 injection volume, and gas injection patterns, to analyze their impact on shale oil recovery.Result: Our simulations revealed that fractured reservoirs significantly enhance shale oil production efficiency compared to homogeneous reservoirs, with an approximate 48.9% increase in production. A notable increase in shale oil production, by 15.8%, was observed when fracture permeability was increased by two orders of magnitude. Additionally, a fourfold increase in CO2 injection rate resulted in a 31.5% rise in shale oil production. Implementing a step-by-step reduction in injection volume while maintaining the total CO2 injection constant proved to be more effective than constant-rate injections.Discussion: The study demonstrates the effectiveness of CO2 flooding in fractured shale reservoirs for enhancing shale oil recovery.
关键词	CO2 geological storage shale oil fractured reservoir discrete fracture-matrix model two-phase flow
DOI	10.3389/fenrg.2023.1330290
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001149007700001
关键词[WOS]	2-PHASE FLOW ; COALBED METHANE ; CO2 INJECTION ; POROUS-MEDIA ; MODEL ; WATER ; GAS
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
资助项目	National Natural Science Foundation of China[12202483] ; National Natural Science Foundation of China[12172362] ; National Natural Science Foundation of China[42002255] ; National Natural Science Foundation of China[42372286] ; Natural Science Foundation of Chongqing[cstc2021jcyj-msxmX0564] ; Opening Fund from the State Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling[2021SKLKF04] ; PetroChina Innovation Foundation[2021DQ02-0204] ; China Postdoctoral Science Foundation[2022M713374] ; Chinese Academy of Geological Sciences through Chinese Geological Survey Projects[DD20221819] ; SinoProbe Laboratory (SinoProbe Lab 202210)
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation of Chongqing ; Opening Fund from the State Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling ; PetroChina Innovation Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Geological Sciences through Chinese Geological Survey Projects ; SinoProbe Laboratory (SinoProbe Lab 202210)
论文分区	Q3
力学所作者排名	3+
RpAuthor	Liu, Yanbao
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94193
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Ma, Tianran,Jiang, Lintong,Liu, Yanbao,et al. Numerical simulation of CO₂-enhanced oil recovery in fractured shale reservoirs using discontinuous and continuous Galerkin finite element methods[J]. FRONTIERS IN ENERGY RESEARCH,2024,11:13.
APA	Ma, Tianran,Jiang, Lintong,Liu, Yanbao,Guo, Chaobin,沈伟军,&Xu, Yongli.(2024).Numerical simulation of CO₂-enhanced oil recovery in fractured shale reservoirs using discontinuous and continuous Galerkin finite element methods.FRONTIERS IN ENERGY RESEARCH,11,13.
MLA	Ma, Tianran,et al."Numerical simulation of CO₂-enhanced oil recovery in fractured shale reservoirs using discontinuous and continuous Galerkin finite element methods".FRONTIERS IN ENERGY RESEARCH 11(2024):13.