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Keywords: stiffness
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1399
... draupne shale interface deformation lab test stiffness poisson scenario constitutive model equation ARMA 21 1399 CO2-induced creep on Draupne shale and impact on cemented wellbore integrity Xiyang XIE SINTEF Industry, Trondheim, Norway Laura EDVARDSEN SINTEF Industry, Trondheim, Norway Pierre...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1043
.... The simulator is then applied to analyze the field data from a PMT test program reported in the literature. 1. Introduction Determination of stiffness and strength properties of soils and rocks is essential in most geo-engineering practices. In geotechnical engineering, stiffness of soil is a key parameter...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1233
... tensile strength equation discrete element method stiffness agofack cement sheath propagation ARMA 21 1233 Numerical simulation of fractures propagation around the wellbore: Effect of the surrounding rock's stiffness Agofack, N. and Cerasi, P. SINTEF Industry, Petroleum department, Trondheim...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1250
... tensile strength mpa stiffness input parameter contact type simulation macroscopic behavior walton heterogeneity factor poisson friction angle peak cohesion triaxial test ARMA 21 1250 The Influence of Heterogeneity of Block Contact Input Parameters on Model Behavior for Bonded Block Models...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1816
.... proximity of the sideburdens or near the central parts of the reservoir) and the mechanical and hydraulic properties of the reservoir and the caprock. The magnitude of global compression and tensile damage indicator is influenced by the comparative stiffness of the caprock and the reservoir. The global...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1850
... of fracture re-opening is very important. In order to measure the true pressure of fracture re-opening correctly, we have realized the following two schemes to reduce the compliance or increase the stiffness of the pressurization system. One is the System A, with a syringe pump and a thin stainless-steel...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1568
... ABSTRACT: Soil-rock mixtures (S-RMs) are highly heterogeneous media which are frequently encountered in geotechnical engineering. The stiffness properties of the system may differ because of the variations in the volume ratio of rock to soil. An Accurate prediction of the stiffness properties...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1238
... stiffness proceedings reaction curve boundary condition excavation grc reservoir geomechanics strength ground reaction curve pillar deformation pillar deformation ARMA 21 1238 Support Design Using the Ground Reaction Curve and Support Reaction Curves at Underground Limestone Mines. Castillo, J...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1955
... and gas production, geothermal energy extraction, and geologic carbon storage. Here, we study the seismic behavior of fault gouge induced by fluid injection with a novel ring shear experimental apparatus. We designed this experimental apparatus to enable large shear strain, shear load stiffness control...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1836
... with standard finite element method is a highly computationally expensive technique, which involves the remeshing of the fracture domain after every time increment. This paper adopts the XFEM technique to study the effects of rock stiffness on the behaviour of fracture propagation in a saturated rocks mass...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1566
... on the consolidated specimens at nominal normal stresses of 500, 1000, and 1500 psi. The tests included pre- and post-failure measurement of normal and shear stiffness. The resulting peak shear stress failure envelope had a friction angle of 9 degrees (coefficient of friction of 0.16) and cohesion of 125 psi when...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1338
.... wellbore design material direction reservoir characterization structural geology quartz complex reservoir strength nanoindentation indentation hardness stiffness experiment shale gas skeleton upstream oil & gas high-load nanoindentation test graham indentation modulus organic matter...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1659
... & gas oscillation experiment shear experiment stress drop reservoir characterization piston pdc mode instability shear strength roughness slip rate displacement rate displacement control mode displacement normal stress bdc mode friction coefficient control mode machine stiffness...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1982
... to infer formation shear modulus (G), if the packer stiffness is known. PMT is a well-established technique in soil mechanics and has been extensively used in mining and civil engineering. However, its application to rock mechanics has so far remained limited to small diameter packers and very shallow...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0042
... to explain the existence of a sweet spot include increasing wear of the bit, reduced indexing, and poor cleaning of debris. Instead, motivated by experimental evidence, we consider an increase of the pseudo-stiffness of the bit/rock interface (BRI) with the WOB, and investigate its consequence to the impact...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0040
... specimen shear strength canada halite-clay 506 laboratory shear stress stiffness residual test direct shear machine normal stiffness carlsbad halite-clay 3 0 shear displacement interface canada halite-clay 507 1. INTRODUCTION Extensive collaborations between American and German salt...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0429
... management strength rock bolt Artificial Intelligence Simulation excavation rock bolt model Reservoir Characterization displacement shear stiffness shear test rock mass tunnel deformation smooth-joint model normal stiffness bolt body Upstream Oil & Gas inward displacement rock bolt...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1545
... dynamic moduli bulk compressibility ner autolab 1500 stiffness experimental study core sample 1. INTRODUCTION Development of unconventional hydrocarbon resources has been accelerated in the last decade with the emergence of many innovations in tools and improvements in development methods...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0504
... Oil & Gas Cottrell Reservoir Characterization stiffness property complex reservoir golder associate fracture network stimulation workflow fracture equation Symposium natural fracture Dershowitz stiffness hydraulic fracture rock mass stress condition interaction fracture geometry...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1583
... ABSTRACT: We developed a coupled THMC model that can describe the long-term evolution in hydraulic and mechanical properties of the rock masses such as permeability and stiffness due to geochemical reactions within rock fractures induced by cavity excavation. Using the developed model, long...

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