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Keywords: creep strain
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2088
... obtained using the Miller-Norton and steady state creep equations. Results show creep displacement to be inversely proportional to the hardness and to increase with clay and TOC content. The stress exponent obtained could be used to calculate the creep strain over time. The exponent decreased from a range...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1994
... lifespan structural geology creep strain evacuation upstream oil & gas rock salt casing integrity mud drop partial evacuation symposium internal pressure creep rate creep deformation deformation sensitivity analysis wellbore lifespan full evacuation wellbore salt rock ARMA 21 1994...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0254
... of the least principal stress with depth have an important influence on vertical hydraulic fracture propagation. shale gas fracturing fluid Reservoir Characterization hydraulic fracturing reservoir geomechanics proppant creep strain Upstream Oil & Gas variation hydraulic fracture...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-1043
... and modeling of subsidence has been very strong since the early nineties. Upstream Oil & Gas elasto-visco-plastic constitutive behavior Reservoir Characterization modeling Simulation Fluid Dynamics creep strain specimen creep strain rate geomechanical subsidence modeling reproduce...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0443
... experiment reservoir geomechanics creep response axial pressure step Faulkner creep strain ductile behavior lateral direction Upstream Oil & Gas differential stress step strain response differential stress Magnitude Shale gas Reservoir Rock deformation damage zone 1. INTRODUCTION...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0453
... and therefore a creep compliance function is needed to extrapolate laboratory findings and to model long-term behavior. reservoir geomechanics Upstream Oil & Gas Artificial Intelligence Reservoir Characterization complex reservoir Prony series experiment creep data creep test creep strain...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-330
... tests were performed on several selected samples, and then multi-stage triaxial creep tests were carried out at room temperature. Samples used in the tests come from three different gas shale reservoirs. It is found that the creep strain can be described by a power-law function of time. The clay...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-469
.... Second, it is helpful to produce a baseline set of data from our own laboratory, on a well understood material, with which to compare subsequent results on more complex samples. shale gas Upstream Oil & Gas creep strain nitrogen coal bed methane complex reservoir pore pressure...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-417
... to creep deformation in beddingperpendicular direction than in bedding-parallel directions. The amount of creep strain increases with sample clay content, regardless of the carbonate content, where a pronounced increase in creep strain occurs at around 35-40% clay content. The amount of creep strain...
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-10-170
... by creep strain observations. 1. INTRODUCTION Coal bed methane (CBM) production from unmineable coal seams is considered to be an unconventional gas resource; methane is typically generated during the coal maturation process and resides in the coal matrix as an immobile, adsorbed phase. During CBM...
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-10-463
... coefficient Haynesville sample Reservoir Characterization Upstream Oil & Gas creep strain coefficient Barnett shale 1. INTRODUCTION Recent technological advances in exploiting unconventional tight gas reservoirs have been facilitated by the combination of horizontal drilling and multi-stage...
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-10-171
... ABSTRACT: Creep strain experiments on uncemented reservoir sands suggest that the time-dependent component of deformation can be modeled using linear viscoelasticity theory. The standard approach to solving for the values of the appropriate model parameters is to fit creep strain data...
Proceedings Papers

Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-130
... strain is best considered as viscoplastic deformation. Creep behavior is different above and below 30 MPa confining pressure. Above 30 MPa, the amount of creep strain is constant with equal pressurization steps, indicating a linear viscous rheology. Below 30 MPa, the amount of creep increases linearly...
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-01-0483
... ABSTRACT: An elasto-plastic-creep material model is developed for modeling the faihu'e of geo-materiais. The plastic and creep strains are accounted for through the strain decomposition technique. The DmckerPrager yield function is used to model the failure of the material. The incremental...
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-01-0637
... Characterization Upstream Oil & Gas Lorraine metals & mining creep potential creep strain Artificial Intelligence strength dilatancy angle reservoir geomechanics take account constitutive model distortion coupling iron ore mechanism failure surface plasticity pillar Simulation creep...
Proceedings Papers

Paper presented at the Vail Rocks 1999, The 37th U.S. Symposium on Rock Mechanics (USRMS), June 7–9, 1999
Paper Number: ARMA-99-0935
... ABSTRACT: The rheological behavior of salt rock is studied by both uniaxial and triaxial relaxation tests. In order to investigate the relaxation behavior of salt rock, stepwise relaxation tests were performed after the sample had been subjected to different pre-relaxation creep strains...
Proceedings Papers

Paper presented at the The 26th U.S. Symposium on Rock Mechanics (USRMS), June 26–28, 1985
Paper Number: ARMA-85-0557-1
... to study the Kaiser effect characteristics of a rock specimen in which creep strain is recognized. This article explains the results of the experiments conducted to solve these problems. 2. EXPERIMENTATION APPARATUS AND METHOD OF EXPERIMENT Fig. 1 is a block diagram of the experimentation apparatus...
Proceedings Papers

Paper presented at the The 23rd U.S Symposium on Rock Mechanics (USRMS), August 25–27, 1982
Paper Number: ARMA-82-333
... creep strain joint inclination creep unfilled rock joint rock joint creep test synthetic rock Upstream Oil & Gas Rock mechanics specimen inclination stress direction deformation mechanics stress level creep behavior Chapter 35 THE INFLUENCE OF STRESS LEVEL ON THE CREEP OF UNFILLED...
Proceedings Papers

Paper presented at the The 23rd U.S Symposium on Rock Mechanics (USRMS), August 25–27, 1982
Paper Number: ARMA-82-684
... form that gives the creep strain rate as a function of stress, temperature and time or accumulated creep strain. The table also provides the parameter values determined for these laws by fitting them to a common data base. Exponential -Time Creep Law An exponential-time creep law was selected...
Proceedings Papers

Paper presented at the The 18th U.S. Symposium on Rock Mechanics (USRMS), June 22–24, 1977
Paper Number: ARMA-77-0293
... power law inelastic creep law differential stress level creep strain rate Upstream Oil & Gas creep strain creep law application formulation stress level EVALUATION OF AN INELASTIC LAW FOR SALT CREEP By Francis D. Hansen RE/SPEC Inc. P. O. Box 72S , Rapid City, South Dakota...

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