IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores
Lin, Chong1; Mao, Jincheng1; He, Jianming2,3; Li, Xiao2,3; Zhao, Jinzhou1
2019-11-01
Source PublicationARABIAN JOURNAL OF GEOSCIENCES
ISSN1866-7511
Volume12Issue:22Pages:9
AbstractHydraulic fracturing is assumed to be a potentially important technology for the improvement of heat exchange rate in the exploitation and stimulation of geothermal resources. The propagation characteristics and aperture evolution of hydraulic fractures in enhanced geothermal system (EGS) are very important for the evaluation and optimization of field fracturing operation. In this article, we employed a series of hydraulic fracturing experiments with heterogeneous granite cores. The experimental monitoring demonstrates the different stages in fracturing treatment in granite cores, including initiation, propagation, and closure stages. The results indicate that, with the increase of confining pressure, the breakdown pressure increases, the maximum fracture width decreases, and the closure of fracture increases. The injection rates do not affect the breakdown pressure obviously. In addition, the fracture morphology was also illustrated by the detection using microscope and X-ray computer tomography (CT). Based on the observation of fractures and the experimental monitoring results, a pre-proposed model was employed to calculate the fracture aperture during fracturing treatment process. The results emphasize the dominant role of fracture closure in the evolution of fracture evolution process. Larger confining pressure results in larger closure proportion, the closure proportion of the fracture aperture even can exceed 90% when confining pressure is 30 MPa.
KeywordAperture closure Aperture evolution Fracture morphology Hydraulic fracture Granite
DOI10.1007/s12517-019-4887-x
Funding OrganizationSichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University)
WOS KeywordINITIATION ; WIDTH ; SHALE
Language英语
Funding ProjectSichuan Youth Science & Technology Foundation[2017JQ0010] ; National High Technology Research & Development Program[2016ZX05053] ; Key Fund Project of Educational Commission of Sichuan Province[16CZ0008] ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University)[G201601]
Funding OrganizationSichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University)
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000496449100004
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95759
Collection页岩气与地质工程院重点实验室
Corresponding AuthorLin, Chong
Affiliation1.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Lin, Chong,Mao, Jincheng,He, Jianming,et al. Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores[J]. ARABIAN JOURNAL OF GEOSCIENCES,2019,12(22):9.
APA Lin, Chong,Mao, Jincheng,He, Jianming,Li, Xiao,&Zhao, Jinzhou.(2019).Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores.ARABIAN JOURNAL OF GEOSCIENCES,12(22),9.
MLA Lin, Chong,et al."Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores".ARABIAN JOURNAL OF GEOSCIENCES 12.22(2019):9.
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