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Keywords: fracture path
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1767
... ABSTRACT: Anisotropy in the mechanical properties of rock is often attributed to bedding and mineral texture. Here, we use 3D printed synthetic rock to show that, in addition to bedding layers, mineral fabric orientation governs sample strength, surface roughness and fracture path under mixed...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0045
... Drilling Completion Installation and Operations Modeling & Simulation Upstream Oil & Gas pressure distribution starter crack multiple hydraulic fracture Bunger fracture path interference horizontal well wellbore misalignment drilling operation outer fracture fluid flow in-situ...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0352
...- wellbore fractures and concluded that the final directions of the fractures are independent of perforation orientation. Cherny et al. (2009) presented a 2D finite-element model with a predefined curvilinear fracture path emanating from the wellbore wall. Their model predicted narrow fracture width near...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-168
... and propagation, and the formation of fracture paths after the global softening in later simulation stages. State-of-the-Art finite element tools are either based on Continuum Damage Mechanics (CDM) or on Fracture Mechanics (FM). In CDM, fractures are considered as the ultimate stage of damage accumulation...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-132
... the interface. However, the fracture path persists directly through strongly-cemented portions while there are offsets at uncemented portions. A fully debonded result is obtained when the cemented region is 5 mm in height, that is, 10% the height of the interface and about 13% of the hydraulic fracture...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7455
... tortuous fracture paths. Transverse initiation from the vertical boreholes at pre-cut slots lowered the injection pressures by up to 12 MPa for water injected at approximately 500 liters per minute. breakdown hydraulic fracturing borehole MPa fracture path fracture initiation tangential stress...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-596
... characterization modeling fracture height mechanical property fracture trajectory Pollard fracture path differential stress remote differential stress internal fluid pressure Poisson interaction 1. INTRODUCTION Fracture mechanics has been successfully applied to model the behavior of geologic...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-318
... was zero and, consistent with the model prediction, the fracture path curved toward and coalesced with the previously-placed fracture. In another laboratory case and in the mine-through case, the stress, injection, and propping conditions were such that the model predicted that curving could be neglected...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-333
... for cased wellbores is varied to study its effect on fracture path. The formation is assumed to be elastic and impermeable and the fluid is incompressible and Newtonian. The numerical results show that, for the conditions considered in this paper, the fracture reorientation and path can be predicted...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-237
.... A comparison of the results with laboratory experiments in brittle elastic materials shows that fracture paths in rock usually do not monotonically approach the free surface. Moreover, they exhibit a high degree of non-symmetry, in contrast to experiments in glass or PMMA. An attempt to correlate crack path...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-148
... direction for fracture growth under the specified far-field stresses. For fractures that extend in a toughness dominated regime, fracture closure may occur along the portion of the fracture path adjacent to the borehole since for this case the fluid pressure is uniform and cannot attain a locally higher...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-155
... surface to eventually daylight. Modeling of the fracture path is important for predicting the fracture daylighting signature [3] and understanding the failure mechanisms [2]. This paper is concerned with the computation of the path of a sub-surface crack subjected to an axisymmetric loading with respect...
Proceedings Papers

Paper presented at the The 31st U.S. Symposium on Rock Mechanics (USRMS), June 18–20, 1990
Paper Number: ARMA-90-0447
... to understand the observed correlations between joint spacing and the thickness of strata. hydraulic fracturing displacement Reservoir Characterization Upstream Oil & Gas Pollard displacement boundary condition structural geology fracture path discontinuity normal displacement interaction...

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