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Keywords: stress field
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1577
... and stress fields play an important role in relation to the seismic responses. As the tunnels were built, various relevant seismic events occurred that affected the working strategy. The Figure 1 shows a summary of the rockburst that affected the main infrastructure tunnels. A brief description is provided...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1939
... Abstract We have a plan to publish a book titled "Stress and stress fields in geomechanics" by François Cornet, Tatsuya Yokoyama, and Tsuyoshi Ishida. This will be published as part of the Geomechanics Research Series by Taylor & Francis Group, CRC Press/Balkema. Until just before he...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1205
... stress field. But, in case of heterogenous rockmass with anisotropic stress field, a much complex stress initialization method should be adopted. hydraulic fracturing discontinuity metals & mining rockmass reservoir geomechanics stress state numerical discontinuous large-scale numerical...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1310
... keynote speaker at the 2017 ARMA symposium in San Francisco. He was a PhD advisor, close colleague, and friend to many of us, and will always be remembered as a passionate leader and mentor with a big voice and laugh, always ready to engage in scientific discussions and a true expert on stress field...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1340
... parameter range. Natural fractures of different lengths have also been investigated, and the results show that longer natural fractures accelerate stress reversal. Valuable insights on infill-well fracturing timing are provided for different fracture distributions based on the altered stress fields. 1...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1748
... ABSTRACT: The principal stress rotations axes are observed due to fluid injection into reservoirs, hydrocarbon production, and around the fractures during wellbore stimulation operation and faults. Local stress fields around the fractures will change during reservoir depletion due to the fluid...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1332
... a stress field characterization, the reservoir conditions are reproduced. Then, the drilling process, casing and cement shield integrity, hydraulic fracturing and production are simulated. The model initialization reproduces the undisturbed condition of the rock mass. After this point, the drilling process...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2025
... an interpolated and smooth stress field, the upgraded version of the software takes discrete stress orientation values sampled from the smoothed stress field at the center of each specific fault segment for probabilistically determination of fault slip potential. In addition, the new code makes it possible...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1038
... of the visco-elastic Zechstein formation probably has a crucial influence on the in-situ stress field in the Dutch subsurface and significantly impacts the fault stability of the gas reservoirs in the Netherlands. By accounting for this influence, our results show remarkable consistency with the observed (non...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1447
.... complex reservoir ordovician carbonate rock stress area reservoir geomechanics displacement acid fracture stress field reservoir characterization upstream oil & gas numerical simulation strike-slip fault hydraulic fracturing maximum principal stress principal stress fracture horizontal...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0085
... developed novel laboratory stress application and flow systems/techniques for measuring the effects of a non-hydrostatic stress field (maximum overburden stress orientated perpendicular to sedimentary layering) on storage and transport properties of anisotropic shale formations. Measured pore volume...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0222
... ABSTRACT: Ordovician carbonate rocks make up the main reservoir stratum in the Tuofutai region of the Tahe Oilfield. The rocks exhibit extensive formations of the faults, fractures and caves which results in a rather complex stress distribution. To determine the variation in the stress field...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1633
... parameters that control the evolution of the stress reversal region. Then, after computing new stress state influenced by production using FLAC3D, a fracture propagation model that respects the altered stress field is built in 3DEC to characterize the fracture propagation process and the stress distribution...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0495
... geothermal reservoir criterion breakout coordinate system Magnitude wellbore integrity thermally failure profile stress field compressive failure model Reservoir Characterization Upstream Oil & Gas enhanced geothermal system visund field eg well compressive failure profile tensile wall...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1530
... microwave outlet port to treated rock surface and the influence on the electromagnetism, temperature and stress field in rock, by means of commercial code COMSOL. Two type rocks, such as limestone and granite, are chosen to be radiated under the different irradiation distance from 12 to 16 cm. The numerical...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1951
... tests were performed on 300 mm cubical blocks of weak porous sandstone under true-triaxial boundary stress conditions at the Delft Technical University (DTU) rock mechanics laboratory. Some of these tests showed distinct breakout features depending on the applied stress field. Geometries of resulting...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0508
... Technology Conference fracture geometry stress field reservoir treatment fracture Upstream Oil & Gas contour pressure response monitor fracture pressure transfer permeability 1 1. INTRODUCTION In recent years, as well-spacing and infill drilling have become central to unconventional...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-557
... at the Hornelen Basin in Norway. The inhomogeneous nature of rock is modelled using a Weibull distribution of Young's modulus characterised by a homogeneity index m. As m decreases, the rock material becomes less homogeneous. The local stress field in the fractured rock under far-field stress loading is derived...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-862
... geomechanical conditions to predict the hydraulic fracturing treatments to be pumped within EGS Collab’s experiments in Sanford Underground Research Facility (SURF). Effect of the parameters such as a varying stress field and the presence of natural fractures are investigated. The simulations show that when...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1164
... to evaluate the mechanical integrity of cement sheath during completion and production stages by assumptions of linear elasticity. For instance, Atkinson and Eftaxiopoulos (1996) used the well-known solution for a pressurized circular cavity to calculate the stress field around cased and cement wellbore...

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