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Article: Numerical simulation to influence of pore pressure magnitude and gradient on fracture propagation in brittle heterogeneous rocks

TitleNumerical simulation to influence of pore pressure magnitude and gradient on fracture propagation in brittle heterogeneous rocks
Authors
KeywordsFailure Process
Heterogeneous
Numerical Simulation
Pore Pressure
Seepage Mechanics
Issue Date2003
Publisher中國科學院武漢巖土力學研究所. The Journal's web site is located at http://ytlx.chinajournal.net.cn/
Citation
Yantu Lixue/Rock And Soil Mechanics, 2003, v. 24 SUPPL. 2, p. 17-20 How to Cite?
AbstractA series of numerical tests of hydraulic fracturing in heterogeneous rocks were performed to investigate the influence of pore pressure magnitude and gradient on initiation and propagation of tensile fractures. The numerical tests were run with a Rock Failure Process Analysis code, F-RFPA2D, incorporated with a Flow-Stress-Damage coupling model (FSD). To investigate the influence of pore pressure magnitude on fracture behaviour, pinch-off breaking tests, originally employed by Bridgeman to investigate the effective stress law for tensile fracture in a uniform pore pressure field, were numerically modeled. In another numerical test, a double-notched sample, with fluid pressure in one notch while keeping another one open to the atmosphere, is numerically extended to investigate how the fluid flow direction or the pore pressure gradient will influence the fracture behaviour. The simulation results show that fracture is strongly influenced by both pore pressure magnitude and pore pressure gradient.
Persistent Identifierhttp://hdl.handle.net/10722/150275
ISSN
2015 SCImago Journal Rankings: 0.843
References

 

DC FieldValueLanguage
dc.contributor.authorTang, CAen_US
dc.contributor.authorYang, THen_US
dc.contributor.authorLi, LCen_US
dc.contributor.authorLiang, ZZen_US
dc.contributor.authorTham, LGen_US
dc.contributor.authorLee, KKen_US
dc.contributor.authorTsui, Yen_US
dc.date.accessioned2012-06-26T06:02:56Z-
dc.date.available2012-06-26T06:02:56Z-
dc.date.issued2003en_US
dc.identifier.citationYantu Lixue/Rock And Soil Mechanics, 2003, v. 24 SUPPL. 2, p. 17-20en_US
dc.identifier.issn1000-7598en_US
dc.identifier.urihttp://hdl.handle.net/10722/150275-
dc.description.abstractA series of numerical tests of hydraulic fracturing in heterogeneous rocks were performed to investigate the influence of pore pressure magnitude and gradient on initiation and propagation of tensile fractures. The numerical tests were run with a Rock Failure Process Analysis code, F-RFPA2D, incorporated with a Flow-Stress-Damage coupling model (FSD). To investigate the influence of pore pressure magnitude on fracture behaviour, pinch-off breaking tests, originally employed by Bridgeman to investigate the effective stress law for tensile fracture in a uniform pore pressure field, were numerically modeled. In another numerical test, a double-notched sample, with fluid pressure in one notch while keeping another one open to the atmosphere, is numerically extended to investigate how the fluid flow direction or the pore pressure gradient will influence the fracture behaviour. The simulation results show that fracture is strongly influenced by both pore pressure magnitude and pore pressure gradient.en_US
dc.languageengen_US
dc.publisher中國科學院武漢巖土力學研究所. The Journal's web site is located at http://ytlx.chinajournal.net.cn/zh_HK
dc.relation.ispartofYantu Lixue/Rock and Soil Mechanicsen_US
dc.subjectFailure Processen_US
dc.subjectHeterogeneousen_US
dc.subjectNumerical Simulationen_US
dc.subjectPore Pressureen_US
dc.subjectSeepage Mechanicsen_US
dc.titleNumerical simulation to influence of pore pressure magnitude and gradient on fracture propagation in brittle heterogeneous rocksen_US
dc.typeArticleen_US
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_US
dc.identifier.authorityTham, LG=rp00176en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-1442326891en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-1442326891&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume24en_US
dc.identifier.issueSUPPL. 2en_US
dc.identifier.spage17en_US
dc.identifier.epage20en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridTang, CA=7404394097en_US
dc.identifier.scopusauthoridYang, TH=7404656308en_US
dc.identifier.scopusauthoridLi, LC=7501449764en_US
dc.identifier.scopusauthoridLiang, ZZ=7402178194en_US
dc.identifier.scopusauthoridTham, LG=7006213628en_US
dc.identifier.scopusauthoridLee, KK=38163207800en_US
dc.identifier.scopusauthoridTsui, Y=7006760586en_US

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