Simultaneous initiation and growth of multiple radial hydraulic fractures from a horizontal wellbore

Lecampion, Brice; Desroches, J.

doi:10.1016/j.jmps.2015.05.010

Cited by 156 publications

(82 citation statements)

References 46 publications

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“…It depends notably on the elastic interactions between the different fractures as well as the exact characteristics of the flow constrictions between the fractures inlet and the wellbore -so called perforation friction (see Bunger and Peirce (2014); Lecampion and Desroches (2015b); Lecampion et al (2015) for some examples). The propagation of simultaneous multiple fractures from a wellbore therefore adds another non-linearity which must be properly dealt with by coupling the dynamics of the fluid flow in the wellbore with the growth of these multiple hydraulic fractures (see Lecampion and Desroches (2015a) for the description of a fully implicit scheme for such problem).…”

Section: Non-linear Injection Conditionsmentioning

confidence: 99%

“…A similar scheme can be used for 2D fracture in a much simpler way as the fracture front reduce to single points in that case (see Gordeliy and Peirce (2013b); Lecampion and Desroches (2015a)). The algorithm has also been extended to mixed mode I+II for plane-strain fractures.…”

Section: Advances In Algorithms For Continuum Modelsmentioning

confidence: 99%

“…They can, however, be easily adapted to simulate fracture initiation (or cases where part of the fracture front does not propagate) by first checking for satisfaction of the propagation condition (see e.g. Lecampion and Desroches (2015a); Dontsov and Peirce (2017).…”

Section: Advances In Algorithms For Continuum Modelsmentioning

confidence: 99%

See 2 more Smart Citations

Numerical methods for hydraulic fracture propagation: A review of recent trends

Lecampion

Bunger

Zhang

2018

Journal of Natural Gas Science and Engineering

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334

172

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Section: Non-linear Injection Conditionsmentioning

confidence: 99%

Section: Advances In Algorithms For Continuum Modelsmentioning

confidence: 99%

See 1 more Smart Citation

Numerical methods for hydraulic fracture propagation: A review of recent trends

Lecampion

Bunger

Zhang

2018

Journal of Natural Gas Science and Engineering

Self Cite

334

172

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“…A coupled, implicit time-stepping numerical model was developed by Bunger et al (2013) to capture the hydraulic fracture that grows near a free surface and curves towards the surface. Combined with very recent developments in numerical models for the initiation and growth of hydraulic fractures by Lecampion and Desroches (2015) and Grassl et al (2015) , we learned that the elastic anisotropy, shale strength and toughness, weak zone strength and toughness, crack-plane friction, and impinging angle between the hydraulic fracture and natural cracks play critical roles in the formation of fracture networks with high permeability. Notably, a hydraulic crack is of finite length and its impinging angle is also well defined in all numerical models.…”

Section: Introductionmentioning

confidence: 99%

Crack deflection in brittle media with heterogeneous interfaces and its application in shale fracking

Zeng

Wei

2017

Journal of the Mechanics and Physics of Solids

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a b s t r a c tDriven by the rapid progress in exploiting unconventional energy resources such as shale gas, there is growing interest in hydraulic fracture of brittle yet heterogeneous shales. In particular, how hydraulic cracks interact with natural weak zones in sedimentary rocks to form permeable cracking networks is of significance in engineering practice. Such a process is typically influenced by crack deflection, material anisotropy, crack-surface friction, crustal stresses, and so on. In this work, we extend the He-Hutchinson theory (He and Hutchinson, 1989) to give the closed-form formulae of the strain energy release rate of a hydraulic crack with arbitrary angles with respect to the crustal stress. The critical conditions in which the hydraulic crack deflects into weak interfaces and exhibits a dependence on crack-surface friction and crustal stress anisotropy are given in explicit formulae. We reveal analytically that, with increasing pressure, hydraulic fracture in shales may sequentially undergo friction locking, mode II fracture, and mixed mode fracture. Mode II fracture dominates the hydraulic fracturing process and the impinging angle between the hydraulic crack and the weak interface is the determining factor that accounts for crack deflection; the lower friction coefficient between cracked planes and the greater crustal stress difference favor hydraulic fracturing. In addition to shale fracking, the analytical solution of crack deflection could be used in failure analysis of other brittle media.

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“…Working under an additional hypothesis that the stress shadow is driving non-uniformity of stimulation, a popular approach is to design the well perforations so that it is easier for fluid to flow through central perforation clusters than end perforation clusters within a given stage (e.g. Lecampion and Desroches, 2014). Also under the same hypothesis, modeling results have suggested that certain non-uniform cluster spacings can substantially improve the uniformity of stimulation Bunger, 2015, 2014).…”

Section: Introductionmentioning

confidence: 99%