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Modeling hydraulic fracture propagation using cohesive zone model equipped with frictional contact capability

Li, Y. / Deng, J.G. / Liu, W. / Feng, Y.

AbstractWe present a new pore pressure cohesive element for modeling the propagation of hydraulically induced fracture. The Park-Paulino-Roesler cohesive zone model has been employed to characterize the fracturing behavior. Coulomb’s frictional contact model has been incorporated into the element to model the possible shear reactivation of pre-existing natural fractures. The developed element has been validated through a series of single-element tests and an available analytical solution. Furthermore, intersection behaviors between the hydraulic fracture and the natural fracture under various conditions have been predicted using the present element, which shows good agreement with experimental results.

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Modeling hydraulic fracture propagation using cohesive zone model equipped with frictional contact capability

Li, Y. / Deng, J.G. / Liu, W. / Feng, Y.

AbstractWe present a new pore pressure cohesive element for modeling the propagation of hydraulically induced fracture. The Park-Paulino-Roesler cohesive zone model has been employed to characterize the fracturing behavior. Coulomb’s frictional contact model has been incorporated into the element to model the possible shear reactivation of pre-existing natural fractures. The developed element has been validated through a series of single-element tests and an available analytical solution. Furthermore, intersection behaviors between the hydraulic fracture and the natural fracture under various conditions have been predicted using the present element, which shows good agreement with experimental results.

Modeling hydraulic fracture propagation using cohesive zone model equipped with frictional contact capability

Li, Y. / Deng, J.G. / Liu, W. / Feng, Y.

AbstractWe present a new pore pressure cohesive element for modeling the propagation of hydraulically induced fracture. The Park-Paulino-Roesler cohesive zone model has been employed to characterize the fracturing behavior. Coulomb’s frictional contact model has been incorporated into the element to model the possible shear reactivation of pre-existing natural fractures. The developed element has been validated through a series of single-element tests and an available analytical solution. Furthermore, intersection behaviors between the hydraulic fracture and the natural fracture under various conditions have been predicted using the present element, which shows good agreement with experimental results.

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Title:

Modeling hydraulic fracture propagation using cohesive zone model equipped with frictional contact capability

Contributors:

Li, Y. (author) / Deng, J.G. (author) / Liu, W. (author) / Feng, Y. (author)

Published in:

Computers and Geotechnics ; 91 ; 58-70

Publication date:

2017-07-02

Size:

13 pages

ISSN:

DOI:

https://doi.org/10.1016/j.compgeo.2017.07.001

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Hydraulic fracturing , Cohesive zone model , Natural fracture , Frictional contact

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