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Keywords: minimum principal stress
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1563
... Denote pore pressure minimum principal stress stress orientation propagation Artificial Intelligence orientation fluid injection injection well fluid flow unfractured well production well 1. INTRODUCTION Hydraulic fracturing technology is one of the essential ways of improving well...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-140
.../8 12 A single vertical main crack is produced along the direction perpendicular to the horizontal minimum principal stress, and micro cracks appear on both sides of the main fracture. 6# 10/9/8 11 Vertical cracks are produced along the direction perpendicular to the horizontal minimum principal...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-212
... fractures to some extent. Reservoir Characterization orientation minimum principal stress reservoir geomechanics pore pressure injection well Upstream Oil & Gas numerical simulation production well fracture configuration fracture hydraulic fracturing Simulation MPa hydraulic...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0733
... transverse isotropic model for inverting the strains measured during overcoring was essential to obtain stress solutions that were consistent with the hydrofracture and microseismicity results. The indicate that the minimum principal stress, s 3 , is sub-horizontal and oriented north-south. The maximum...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0451
... caprock cross-flow analysis Upstream Oil & Gas reservoir pressure minimum principal stress reduction reservoir geomechanics heather reservoir shale requirement plug abandonment recharge pressure stress change reservoir guideline 1. INTRODUCTION At the end of field life, wells require...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-281
... Abstract: For reservoir injection and containment studies we need to be able to describe the relationship between the change in formation pore pressure and the in-situ stress magnitudes, specifically, the minimum principal stress magnitude which is the primary control on the pressure...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-108
... because of the weight of the advancing sheet. We hence predict a change in the orientation of the minimum principal stress within the wall rocks associated with a switch from horizontal shortening to extension. Furthermore, the ratio of minimum effective principal stress to effective overburden decreases...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-189
... pressure and the three principal stresses with depth to answer this question. The pore pressures and minimum principal stresses are analyzed from the Diagnostic Fracture Injection Test, which are consistent with literatures. Maximum horizontal stress in the Spraberry formation is constrained by observation...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-249
... plane. In all scenarios, the hydraulic fracture grows in a plane with a mostly circular front, despite anisotropic stresses. In the intact rock and disconnected models a hydraulic fracture propagates normal to the minimum principal stress, whereas in the connected fracture model fluid leaks into a pre...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-305
...1. INTRODUCTION An extended leak-off test (XLOT) provides information on hydraulic-fracture initiation and propagation in a rock formation at a given depth, as well as the magnitude of the minimum principal stress [1-4]. XLOT is usually carried out in a few-meter long open-hole section below a...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-829
... characterization principal stress compressive stress rock block rock mass deformation reservoir geomechanics erosion slope surface california minimum principal stress displacement different loading step total displacement upstream oil & gas gravity maximum displacement loading step dam...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-421
... combinations of mechanisms enabled in the model (i.e. columns using the same nomenclature as Fig. 6) showing the maximum and minimum principal stresses (i.e. rows) for a 5 MPa stress field at 700,000 time steps. In the legend below, positive stresses are compressive, while negative stresses are tensile. The...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-786
... MPa and transits from gas to liquid through a mixed-phase region rather than directly to liquid as for H 2 O and N 2 which do not; 4) there is a positive correlation between minimum principal stress and breakdown pressure for failure both by transverse fracturing (? 3 axial ) and by...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7054
... geological structure safety analysis criterion rock salt minimum principal stress Upstream Oil & Gas repository integrity Time Period mining room Morsleben repository salt barrier Disposal old mining room case study 1. INTRODUCTION The German projects on radioactive waste disposal in...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-388
... stress on the grain boundaries. Reservoir Characterization cavern minimum principal stress waste management radioactive waste fluid pressure reservoir geomechanics rock salt discontinuity principal stress integrity percolation pressure-driven percolation percolation threshold salt...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-368
... stimulation Zoback wellbore injection reservoir fracture Barnett shale minimum principal stress principal stress deformation 1. INTRODUCTION 1.1. Background Horizontal wells in shale formations are routinely completed with multiple stage hydraulic fracturing. Wellbore pressure is typically...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-144
... construction of underground project. The hydraulic fracturing technique is a classical method and widely used for stress measurement. reservoir geomechanics measuring point minimum principal stress hydraulic fracturing deep underground cavern project different orientation coordinate system stress...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-238
... particle microscopic numerical system smooth-joint contact model natural fracture minimum principal stress coupling Upstream Oil & Gas pore pressure fluid pressure boundary stiffness fluid flow interaction vector parallel bond 1. INTRODUCTION Introduced in the late 1940s (Clark 1949...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-309
..., sediments are elastic, and pore pressure is assumed to be hydrostatic in sediments. We show that near-salt stresses are perturbed; near-salt wellbore instability tends to happen at the places with low minimum principal stress and high shear stress; in these locations, safe mud weight window is narrow. Near...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-608
... 0.35 computed using the zero lateral strain (ZLS) model everywhere except within two layer thicknesses of the layer boundaries. Figure 1d shows vertical profiles of the minimum principal stress and maximum principal stress across the center of the model domain. Because the density is constant, the...

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