Nucleation and mixed mode crack propagation in a porous material

E.W. Remij, F. Pizzocolo, J.J.C. Remmers, D.M.J. Smeulders, J.M.R.J. Huyghe

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Abstract

Understanding crack propagation in hydraulic fracturing for purposes of enhanced oil recovery, gas recovery or geothermal applications demands advanced numerical techniques able to handle multiple fracturing in 3D media. The Partition of Unity Method (PUM) formulation in a 2D poro-elastic media is used to model fracture propagation and nucleation. Biot theory is used for the bulk poroelasticity. The cohesive zone formulation with a Camacho-Ortiz fracture criterion is able to handle mixed mode fracture in arbitrary directions. Fluid flow from the formation into the crack and vice versa are accounted for, as well as fluid flow in the bulk material. The influence of the permeability on fracture nucleation and propagation velocity are investigated in a mixed mode fracture simulation. Fracture nucleation and propagation velocity increase with a higher permeability. The crack path is also found to be dependent on the permeability.
Original languageEnglish
Title of host publicationPoromechanics V: Proceedings of the Fifth Biot Conference on Poromechanics, July 10-12, 2013, Vienna, Austria
EditorsC. Hellmich, B. Pichler, P. Adam
Place of PublicationReston
PublisherAmerican Society of Civil Engineers
Pages2260-2269
ISBN (Print)978-0-7844-1299-2
DOIs
Publication statusPublished - 2013
Event5th Biot Conference on Poromechanics - Vienna, Austria
Duration: 10 Jul 201312 Jul 2013
Conference number: 5
http://biot2013.conf.tuwien.ac.at/

Conference

Conference5th Biot Conference on Poromechanics
Abbreviated titleBIOT 2013
Country/TerritoryAustria
CityVienna
Period10/07/1312/07/13
Internet address

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