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Keywords: fracture stiffness
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Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1945
... Upstream Oil & Gas majidi equation mud invasion leak-off value Artificial Intelligence complex reservoir fracture stiffness drilling fluid property boundary condition drilling fluid formulation leak-off coefficient fracture face deformation fracture ballooning fracture 1. INTRODUCTION...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-225
... stress pressure decline complex reservoir natural fracture hydraulic connectivity variable compliance method tangent line method fracture complex fracture geometry fracture geometry hydraulic fracturing fracture stiffness MPa hydraulic fracture permeability 1. INTRODUCTION Diagnostic...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0386
... uniform fracture stiffness across all fractures. A methodology is presented for inverting a source from the experiment. We find that the waveforms from the three models do not match each other. For propagation parallel to the fractures, the explicit model performs best with excellent agreement...
Proceedings Papers
Zhenyu Xu, Qingyun Li, Julie Sheets, Timothy J. Kneafsey, David Cole, Young-Shin Jun, Laura J. Pyrak-Nolte
Publisher: American Rock Mechanics Association
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-729
... of the faults. hydraulic fracturing fracture stiffness international journal complex reservoir calcium carbonate State University fracture surface Upstream Oil & Gas Rock mechanics Reservoir Characterization precipitate precipitation amplitude co 2 solution 2 University stiffness...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-285
... aperture Modeling & Simulation compressibility mechanical aperture pressure depletion prediction closure fracture stiffness porosity reduction normal stress specimen stiffness characteristic fractured reservoir hydraulic aperture permeability stiffness fracture 1. INTRODUCTION Many...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-382
... transducer complex reservoir fracture specific stiffness snapshot upstream oil & gas orthogonal fracture stiffness reservoir characterization amplitude wave propagation intersection fracture stiffness central waveform mpa frequency fracture intersection fracture network...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7531
...-modes are mainly affected by the fracture stiffness, signal frequency and fracture orientation with respect to the layering. From the experimental data, the apparent anisotropy was dominated by fractures at low stress because the energy was confined between the low stiffness fractures. At high stresses...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-343
... dependent, with the relaxation frequency at 10~20 Hz. This result, however, did not agree well with an analytical model which predicted much larger compliance changes and a higher relaxation frequency than the experiment. Observed normal to shear fracture stiffness ratio ranged from 1.8–2.8...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-405
... waves. Shear and normal fracture stiffnesses were calculated using the displacement discontinuity theory. The stiffness ratio determined from the experiments was compared to a theoretical ratio that was determined assuming that the transmission of compressional and shear waves was equal...
Proceedings Papers
Exploring Alternative Characterizations of Fracture Stiffness and Their Respective Scaling Behaviors
Publisher: American Rock Mechanics Association
Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-197
... using a measure of fracture stiffness (or its inverse, compliance). In this paper we explore how two different measures of fracture stiffness are influenced by fracture size and in situ stress. It is non-trivial to determine the appropriate measure to consider when describing the scaling of fracture...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-568
... in porous media fracture aperture dual permeability dual stiffness Fluid Dynamics coal Upstream Oil & Gas effective stress fracture stiffness coefficient evolution interaction stiffness poromechanical response fracture permeability permeability evolution matrix poromechanical effect...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-565
... invaded portions of the fracture that had a relatively low fracture stiffness and then spread to the regions with higher stiffness. In conclusion, the fluid front can be detected seismically and the spatial variation of fracture stiffness is correlated to the fluid flow path. 1. INTRODUCTION A goal...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-610
... to the field scale. We will discuss results of an investigation into the scaling of fracture stiffness with fracture dimension. This study considered a set of statistically identical "parent" fractures with smaller fractures being generated by cutting sub-fractures from the parents. The smallest subfractures...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-159
... of the converted wave generation can be understood as a superposition of the waves diffracted (and mode-converted) by these "scatterers" on the fracture. Reservoir Characterization fracture stiffness experiment displacement rough fracture Upstream Oil & Gas loading granite sample normal stress...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-1153
... that results in a discontinuity in the fracture stiffness at the interface between air and water. One-dimensional Fresnel diffraction calculations provide a basis to understand how the transmitted diffracted signals depend on the fracture specific stiffness and the frequency content of the signal. For the case...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the Alaska Rocks 2005, The 40th U.S. Symposium on Rock Mechanics (USRMS), June 25–29, 2005
Paper Number: ARMA-05-870
... crystal. Interpretation of fracture properties from seismic measurements is affected by these two extrinsic length scales. Upstream Oil & Gas reactive flow fracture specific stiffness fracture stiffness diameter Reservoir Characterization seismic measurement control sample...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 35th U.S. Symposium on Rock Mechanics (USRMS), June 5–7, 1995
Paper Number: ARMA-95-0769
... scales of some of the key thermoporoelastic parameters such as the fracture stiffness required as input to the given analytical model. Experimental determination of these factors depends on the sensitivity achieved in measuring thermal strains for both saturated or unsaturated rock samples subject...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 34th U.S. Symposium on Rock Mechanics (USRMS), June 28–30, 1993
Paper Number: ARMA-93-0729
... represents mechanisms of hydraulic conductivity enhancement, caused by deformation, through use of a modulus reduction ratio, Pa. The modulus reduction ratio, Rm, is incorporated in the expression for hydraulic conductivity to account for the influence of fracture aperture and spacing, fracture stiffness...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 33rd U.S. Symposium on Rock Mechanics (USRMS), June 3–5, 1992
Paper Number: ARMA-92-0999
... with direct observations on a synthetic fracture in the laboratory. Reservoir Characterization displacement elastic interface wave fracture specific stiffness stiffness orientation phase velocity specimen fracture aluminum specimen fracture stiffness shear wave interface wave Upstream Oil...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 28th U.S. Symposium on Rock Mechanics (USRMS), June 29–July 1, 1987
Paper Number: ARMA-87-0047
... displacement discontinuity model frequency dependence amplitude frequency dependent velocity Geophy Reservoir Characterization Upstream Oil & Gas attenuation fracture stiffness specimen fracture wave propagation propagation travel time stiffness effective velocity group time...
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