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Keywords: rock type
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0101
... rock strength properties based on petrographic indices that are easier to measure. In this study, a comprehensive literature review was performed to build a database containing petrographic and mechanical properties for sedimentary rock types. A subset of this database containing only sandstone rock...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1618
... distribution kuz-ram model uniformity index metals & mining characteristic size predictor variable digital image measurement strength fragmentation size distribution prediction model estimation image processing rock type mean fragment size 1. INTRODUCTION Optimum fragment size distribution...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1547
... is granite which is an igneous rock that is polymineralic, the other is marble which is monomineralic and relatively homogeneous. The mineral content and grain structure of two rock types are identified using petrographic thin sections. The strain rate effect of rock shear strength under triaxial confining...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1589
... and predict the process. An overall review of the existing database allowed for the discovery of a consistent process of fracturing during material flow within the ore column. For instance, whatever the mine conditions, rock types, height of draw and preconditioning techniques being applied to the rock mass...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1799
... directly from the nondimensional model suggest that strong differences in spallation behavior between Barre and Westerly granite are due to the difference in grain size between the two rock types. Artificial Intelligence temperature rise reservoir geomechanics rauenzhan hydraulic fracturing...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1720
... the values of the coefficient of friction. Reservoir Characterization strength marble rock type complex reservoir transition MPa carbonate reservoir brittle-ductile transition compressive strength limestone Hoek fracture triaxial compression behavior hypothesis carbonate rock friction...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1675
... of heterogeneous rock types ranging in diameter from 36 to 84 mm, under confinement up to 70 MPa. Residual properties are estimated from the triaxial unloading curve using the continuous state failure approach and compared to the Mohr-Coulomb residual strength constants derived from bi-linear fit to raw residual...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-620
... by the stress state and rheology of both the reservoir and the sealing formations. Reservoir Characterization strength shale fluid disposal operation cedar key Upstream Oil & Gas displacement stress state rock type reservoir geomechanics Eau Claire axial stress relaxation increment...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-086
... was performed and a strong correlation was established between the P-wave velocity and different index properties of various rock types with very higher coefficient of determination. Student’s t-test were performed to confirm the validity of the proposed linear relations. 1. INTRODUCTION Upstream Oil...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-129
... with a brief discussion of how petrophysical rock types and patterns between properties can change with scale, and how fine scale characterization is needed to fully understand log scale variations and their relations to plug scale observations. 1. INTRODUCTION The Vaca Muerta formation is a prolific organic...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-156
... partial core periphery lateral reinforcement interface strength pull-off test failure surface stress distribution rock type rock material granite geological discontinuity tensile strength DTT 1. INRODUCTION The pull-off test (POT) is widely used to obtain the tensile strength of concrete...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1437
... towards understanding Earth surface processes. Upstream Oil & Gas outcrop Hancock Collin structural geology quartzite Reservoir Characterization rock erosion Rock mechanics erosion rate rock type geophysical research crack length surface process subcritical crack growth thermal...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0064
... ABSTRACT: A series of compression tests were carried out in the laboratory on twelve (12) specimen groups of three (3) rock types, i.e. Stanstead Grey Granite, Indian Buff Limestone and Danby/Olympia White Marble, and four (4) different sizes, i.e. 51, 63, 81 and 99 mm outer diameter...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0343
... Upstream Oil & Gas variability characteristic lag distance Unpredictability geologic variability covariogram rock type data pair covariogram analysis covariogram map aleatory variability modeling geologic 1. INTRODUCTION Rock displays an inherent degree of variability, even within...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0158
... of the improved USEL model were highlighted and verified using UCS data from different rock types. Finally, it was demonstrated that there is a good agreement between the improved USEL prediction and the experimental results. Reservoir Characterization Upstream Oil & Gas unified size effect law...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-135
... to triaxial strength data sets of small sample size. This paper investigates how such small sample sizes affect the uncertainty associated with the H-B parameter estimations. We use Monte Carlo (MC) simulation to generate data sets of different sizes that represent various rock types, and then investigate...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-624
... Reservoir Characterization specific energy Rock mechanics structural geology cutter grain size rock sample cutter speed rock type drawback reservoir geomechanics scratch test uc testing estimation discrete element method 1. INTRODUCTION The Uniaxial Compressive Strength (UCS) is the most...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-767
... between the two methods. This paper describes how the data should be interpreted to minimize the error with the results obtained from MST test results. Multiple rock types were evaluated representing different lithologies (Shale, Sandstone, and Chalk) to validate a possible single correction factor from...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-623
... oil & gas correlation mpa test data rock type rock group reservoir characterization weak rock reservoir geomechanics plt 1. INTRODUCTION The estimation of the Unconfined Compressive Strength (UCS) of rock is an important part of the geotechnical characterization of rock masses which...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-005
.... cartesian grid gradient assessment lithology drilling upstream oil & gas geomechanical parameter reservoir geomechanics poisson ratio reservoir dimension geomechanical modeling modeling workflow reservoir characterization rock type drilling parameter economic profitability fpp...

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