中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid

Modeling study on supercritical CO2 fracturing applicability and capacity to stimulate reservoirs with different permeabilities

文献类型:期刊论文

作者He, Jianming1,2,3; Zhang, Zhaobin1,2,3; Li, Guanfang1,2,3; Huo, Jian1,2,3; Li, Shouding1,2,3; Li, Xiao1,2,3
刊名JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
出版日期2022-06-01
卷号213页码:14
ISSN号0920-4105
关键词Hydraulic fracturing

Supercritical CO2

Rock matrix permeability Fluid leak-off Fracture propagation
DOI10.1016/j.petrol.2022.110427
英文摘要Hydraulic fracturing (HF) using water-based fluids is an effective approach for reservoir stimulation in the exploitation of unconventional resources. Recently, supercritical carbon dioxide (S-CO2) has been proposed as a prospective fracturing fluid in reservoir stimulation because it exhibits higher fracturing capacity compared with water-based fracturing fluid. However, S-CO2 appears to have a distinct drawback of intensifying leak-off when used in reservoirs with relatively high rock matrix permeability (RMP). In this work, a modeling study on water fracturing and S-CO2 fracturing (SCF) was implemented in reservoirs with varied RMPs to assess their appli-cability. In the modeling, the natural fracture system in the reservoir was considered through the discrete fracture network method for simulating different reservoirs. The lower viscosity and density of S-CO2 compared with those of water enable the easier fracturing of reservoir rocks and allow the generation of more complex fracture networks. However, the intensifying leak-off of S-CO2 due to fracture propagation can hamper the build-up of hydraulic pressure and affect fracture propagation, especially in reservoirs with relatively high RMP. The inflection of fracture length development during HF can also reflect the impact of fluid leak-off. Permeability determines the final fracture network of SCF, and the injection rate increase can offset the leak-off to a certain extent; however, the improvement in fracturing results becomes limited. The modeling results clearly demon-strate the importance of RMP, which can directly determine the applicability and capacity of SCF.
WOS关键词SHALE GAS ; NUMERICAL-ANALYSIS ; PROPAGATION ; ALGORITHM
资助项目National Natural Science Foundation of China[42090023] ; National Natural Science Foundation of China[41877270]
WOS研究方向Energy & Fuels ; Engineering
语种英语
出版者ELSEVIER
WOS记录号WOS:000793315000002
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/105900]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者He, Jianming
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
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GB/T 7714
He, Jianming,Zhang, Zhaobin,Li, Guanfang,et al.

Modeling study on supercritical CO2 fracturing applicability and capacity to stimulate reservoirs with different permeabilities

[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2022,213:14.
APA He, Jianming,Zhang, Zhaobin,Li, Guanfang,Huo, Jian,Li, Shouding,&Li, Xiao.(2022).

Modeling study on supercritical CO2 fracturing applicability and capacity to stimulate reservoirs with different permeabilities

.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,213,14.
MLA He, Jianming,et al."

Modeling study on supercritical CO2 fracturing applicability and capacity to stimulate reservoirs with different permeabilities

".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 213(2022):14.

入库方式: OAI收割

来源:地质与地球物理研究所

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