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Keywords: tensile fracture
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Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0447
...-situ stresses should include both the magnitude and direction of all the principal stress components. An accurate estimation of the in-situ stress field is a prerequisite for a robust and reliable geomechanical analysis. reservoir geomechanics tensile fracture fluid pressure dfit analysis...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0474
... the fracture network, rather than the connectivity of the pores, provides the conduits for fluids and heat to flow through the reservoir. Injecting fluid alters the stress field in the area. If the induced extra pressure is larger than the rock strength, it propagates tensile fractures in the rock...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7462
... Abstract This study investigates the impacts of rock anisotropy (mainly transverse isotropy, TI) on the near-wellbore stress distribution and the consequential creation of drilling induced tensile fractures (DITF). First, by utilizing an earlier analytical solution, a theoretical model has...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-667
... mechanism analysis supports the interpretation of reactivated existing fractures rather than the formation of hydraulically-induced tensile fractures. 1. INTRODUCTION The development of linear trends of microseismicity during hydraulic fracture stimulation treatments has been typically interpreted to...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-564
... ABSTRACT In this work, the effect of gouge materials on the non-linearity of the closure curve during shear was investigated in the direct shear tests by using mortar fracture replicas of sizes ranging from 100 mm to 200 mm, which were reproduced from a tensile fracture created in granite...
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-10-153
... Reservoir Characterization Upstream Oil & Gas strength geomechanical model XINCHANG gas FIELD Drilling reservoir geomechanics tensile fracture cx-565 well Wellbore Design mud weight orientation pore pressure China subsidence equation hmin wellbore integrity caliper data...
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-10-315
... hydraulic fracturing heterogeneity specimen fracture surface Upstream Oil & Gas normal stress shear-flow test tensile fracture mass permeability aperture heterogeneous water flow apparatus Rock Mech experimental system shear displacement fracture aperture distribution test...
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-10-466
... shale gas Upstream Oil & Gas Reservoir Characterization hydraulic fracturing tensile failure normal stress MPa reservoir geomechanics complex reservoir tensile fracture borehole porothermoelastic solution subproblem wellbore integrity Wellbore Design pore pressure coefficient...
Proceedings Papers

Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-1553
...) and tensile fractures (in tensile regions) adjacent to the excavation. The microproperties of the PFC2D material were chosen to match the elastic modulus, crack-initiation stress and unconfined compressive strength, as well as the anisotropy in modulus and strength of gneissic tonalite. No attempt was...
Proceedings Papers

Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-0739
... ABSTRACT: This paper presents an experimental examination of the initiation of tensile fracture under a two-dimensional normal wedge indentor. In addition, the nondestructive technique of electronic speckle pattern interferometry (ESPI) monitored the failure process in medium strength (Berea...
Proceedings Papers

Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-0817
... Reservoir Characterization strength shear rock joint Upstream Oil & Gas accuracy normal load tensile fracture specimen shear test shear strength damage zone joint surface Mining Science geometry degradation structural geology displacement Rock mechanics laboratory dip...
Proceedings Papers

Paper presented at the The 34th U.S. Symposium on Rock Mechanics (USRMS), June 28–30, 1993
Paper Number: ARMA-93-0697
... toughness ratio (GIIc/GIc) and stress ratio (ó3/ó1) affect the propagation mode of a single fracture. fracture growth tensile fracture surface dislocation propagate Coalescence fracture propagation hydraulic fracturing propagation fracture toughness experiment fracture tip fracture...
Proceedings Papers

Paper presented at the The 29th U.S. Symposium on Rock Mechanics (USRMS), June 13–15, 1988
Paper Number: ARMA-88-0471
... measurements based on the stress around a circular hole does not result in large errors if the hole has moderate breakouts. Large breakouts result in tensile fractures that preclude measurements of breakdown pressures. 1 INTRODUCTION The phenomenon of rock fracturing by spalling from the walls of boreholes...
Proceedings Papers

Paper presented at the The 24th U.S. Symposium on Rock Mechanics (USRMS), June 20–23, 1983
Paper Number: ARMA-83-0395
... ABSTRACT ABSTRACT Stress waves emitted as a result of crack initiation, high speed propagation, and sudden arrest have been experimentally studied. Two brittle materials were used: sodaline glass and polymethylmethacrylate (PMMA). The simpler one-dimensional problem of tensile fracture of a...
Proceedings Papers

Paper presented at the The 12th U.S. Symposium on Rock Mechanics (USRMS), November 16–18, 1970
Paper Number: ARMA-70-0561
... Artificial Intelligence tensile fracture detonation tensile fracture mechanics natural language fracture mechanics Rock mechanics shatter cone surface morphology fracture surface hydraulic fracturing rib mark presplit surface arrangement limestone hackle mark propagation...

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