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Article: Numerical simulation of hydraulic fracturing process in heterogeneous rocks under different confining pressures

TitleNumerical simulation of hydraulic fracturing process in heterogeneous rocks under different confining pressures
Authors
KeywordsFailure process
Heterogeneity
Hydraulic fracturing
Numerical simulation
Issue Date2004
Citation
Jisuan Lixue Xuebao/Chinese Journal Of Computational Mechanics, 2004, v. 21 n. 4, p. 419-424 How to Cite?
AbstractHydraulic fracture is the classical coupling action of seepage-damage and it is so important to understand the hydraulic fracture mechanisms that we can deal with the problems of rock seepage stability, such as dam instability and water outburst. On the heterogeneous characteristics of rock at microscopic level, a numerical model, which couples the seepage and the failure process, is developed to study hydraulic fracturing phenomenon in permeable and heterogeneous rocks. In this model, material is discretized into a large number of elements with the same size and different mechanical and permeable parameters in order to represent heterogeneity of the rock. A coupling analysis of seepage and damage under hydraulic fracturing on the rock is performed to simulate the fracture process of rock. The numerical analyses indicate that this model is capable of simulating the heterogeneous distribution of stress and permeability of rock subjected to hydraulic fracturing under different confining pressure. The modeling results suggest that the fracture initiation and propagation, the roughness of fracture path and the breakdown pressure are influenced considerably by the heterogeneity of the rock, and the numerical results can agree well with the relevant experimental data.
Persistent Identifierhttp://hdl.handle.net/10722/70564
ISSN
2015 SCImago Journal Rankings: 0.337
References

 

DC FieldValueLanguage
dc.contributor.authorYang, Ten_HK
dc.contributor.authorTang, Cen_HK
dc.contributor.authorRui, Yen_HK
dc.contributor.authorZhu, Wen_HK
dc.contributor.authorLi, Yen_HK
dc.contributor.authorTham, LGen_HK
dc.date.accessioned2010-09-06T06:24:07Z-
dc.date.available2010-09-06T06:24:07Z-
dc.date.issued2004en_HK
dc.identifier.citationJisuan Lixue Xuebao/Chinese Journal Of Computational Mechanics, 2004, v. 21 n. 4, p. 419-424en_HK
dc.identifier.issn1007-4708en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70564-
dc.description.abstractHydraulic fracture is the classical coupling action of seepage-damage and it is so important to understand the hydraulic fracture mechanisms that we can deal with the problems of rock seepage stability, such as dam instability and water outburst. On the heterogeneous characteristics of rock at microscopic level, a numerical model, which couples the seepage and the failure process, is developed to study hydraulic fracturing phenomenon in permeable and heterogeneous rocks. In this model, material is discretized into a large number of elements with the same size and different mechanical and permeable parameters in order to represent heterogeneity of the rock. A coupling analysis of seepage and damage under hydraulic fracturing on the rock is performed to simulate the fracture process of rock. The numerical analyses indicate that this model is capable of simulating the heterogeneous distribution of stress and permeability of rock subjected to hydraulic fracturing under different confining pressure. The modeling results suggest that the fracture initiation and propagation, the roughness of fracture path and the breakdown pressure are influenced considerably by the heterogeneity of the rock, and the numerical results can agree well with the relevant experimental data.en_HK
dc.languageengen_HK
dc.relation.ispartofJisuan Lixue Xuebao/Chinese Journal of Computational Mechanicsen_HK
dc.subjectFailure processen_HK
dc.subjectHeterogeneityen_HK
dc.subjectHydraulic fracturingen_HK
dc.subjectNumerical simulationen_HK
dc.titleNumerical simulation of hydraulic fracturing process in heterogeneous rocks under different confining pressuresen_HK
dc.typeArticleen_HK
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-7244223522en_HK
dc.identifier.hkuros104107en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-7244223522&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume21en_HK
dc.identifier.issue4en_HK
dc.identifier.spage419en_HK
dc.identifier.epage424en_HK
dc.identifier.scopusauthoridYang, T=7404656308en_HK
dc.identifier.scopusauthoridTang, C=7404394097en_HK
dc.identifier.scopusauthoridRui, Y=8615539100en_HK
dc.identifier.scopusauthoridZhu, W=7404232063en_HK
dc.identifier.scopusauthoridLi, Y=15060344000en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK

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