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 language | English |
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Title of host publication | Poromechanics V: Proceedings of the Fifth Biot Conference on Poromechanics, July 10-12, 2013, Vienna, Austria |
Editors | C. Hellmich, B. Pichler, P. Adam |
Place of Publication | Reston |
Publisher | American Society of Civil Engineers |
Pages | 2260-2269 |
ISBN (Print) | 978-0-7844-1299-2 |
DOIs | |
Publication status | Published - 2013 |
Event | 5th Biot Conference on Poromechanics - Vienna, Austria Duration: 10 Jul 2013 → 12 Jul 2013 Conference number: 5 http://biot2013.conf.tuwien.ac.at/ |
Conference
Conference | 5th Biot Conference on Poromechanics |
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Abbreviated title | BIOT 2013 |
Country/Territory | Austria |
City | Vienna |
Period | 10/07/13 → 12/07/13 |
Internet address |