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Keywords: geometry
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Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-502
... influences the fracture growth significantly through the leak-off character of the formation [2]. The authors have developed another numerical simulator of hydraulic fracturing, in which the true three-dimensional geometry and interaction of multiple fractures are considered [3]. The solid transport model...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-470
... Characterization pore pressure rock property geometry San Antonio southwest research institute deformation 1. INTRODUCTION In the oil and gas industry, a gap exists between the early phase of exploration, which is driven primarily by the fields of geology and geophysics, and the subsequent drilling...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-495
... Upstream Oil & Gas calculation TSO sand control bottom hole pressure contour hydraulic fracturing analytical solution fracture geometry Simulation proppant concentration proppant density onset frac and pack fracture length three-dimensional simulator geometry final fracture...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-480
... rock and joints are defined and the macro-scale response results from those properties and the geometry of the problem. In this paper a rock mass is simulated using a discrete element model and the results compared to the traditional model where the constitutive model is prescribed. The discrete...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-454
... of the junction/completion is compromised. This paper presents the application of a refined numerical model that meets these objectives. The model enables the simulation of post-peak strength strain localization that allows the geometry and distribution of shear zones and breakouts to be analyzed. In order...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-493
... Wellbore Design discretization instability rock mass grid wellbore integrity Upstream Oil & Gas trajectory mechanical property information borehole instability geometry zone size salt diapir Drilling Reservoir Characterization diapirism diapir Mungo field in-situ stress...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-517
... mode geometry probability point estimation method 1. INTRODUCTION Stochastic simulations of fractured rock masses can provide valuable information for the engineering design of rock slopes, particularly when the natural geologic discontinuities may form potential slope failure modes. An essential...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-577
... well control annular pressure drilling Wellbore Design wedge wellbore integrity Upstream Oil & Gas fracture initiation Bridge fracture fracture tip initiation geometry in-situ stress Pressure improvement formation young fracture case borehole geometry hydraulic fracturing...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-581
... reservoir geomechanics external stress specimen concentration experiment elliptical breakout Upstream Oil & Gas hole failure higher external stress stability breakout depth Reservoir Characterization circular hole sandstone hollow cylinder geometry breakout breakout tip...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-648
... hydraulic fracturing Upstream Oil & Gas plasticity compaction maximum fracture length injection mechanics waste management Simulation operation fracture propagation New York modeling simulator geometry fracture deformation fracture length critical state line fracture...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-618
... and other forces, roof and wall wedges may fail either by falling, sliding or rotating out of their sockets. The factors that control wedge stability include geometry (the size, shape and spatial location of a wedge), the strength characteristics of the discontinuity planes that create the wedge...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0481
... adjustment factor for the empirical "Stability Graph", a technique for design of open stope dimensions and support. stope rockmass hangingwall geometry Reservoir Characterization strength analogue stability span reservoir geomechanics wedge Stability Graph cablebolt metals & mining...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0515
.... The DSSD has not been active since 2295-1895 yr ago at least, posing clarifying data for the hazard and risk assessment. Upstream Oil & Gas metamorphic bedrock Reservoir Characterization dislocation trench displacement plane foscagno fracture uphill-facing scarp geometry Valtellina...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0785
... solution fracture surface fracture Newtonian fluid surface roughness Bingham material aperture geometry shear stress bingham viscoplastic material equation Pacific Rocks2000, Girard, Liebman, Breeds & Doe (eds) O 2000 Balkema, Rotterdam, ISBN90 5809 155 4 A mathematical model for flow...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0865
... horizontal principal stresses from the geometry of single breakout. Using results from the literature, the full application of the proposed method is also shown. The applicability of the method to in situ rock masses is then discussed. criterion Zoback application Upstream Oil & Gas borehole...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0539
... Miller Rockfall Hazard geologic modeling Modeling & Simulation mitigate rockfall hazard bench simulation stability geological modeling hydraulic fracturing wedge shear strength probability bench stability plane shear information geometry fracture Pacific Rocks 2000, Girard, Liebman...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0465
... original excavation to failure, some suggestions are given on application of the scaled span concept for assessing pillar longevity. classification crown pillar stability pillar stability case record geometry metals & mining rock quality expression Proc Carter span Reservoir...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0547
... homestake mining company displacement stope backfill geometry open cut deformation material property FLAC model south wall numerical modeling Pacific Rocks 2000, Girard, Uebman, Breeds & Doe (eds)© 2000 Balkema, Rotterdam, ISBN 90 5809155 4 Mine, community and agencies rely on numerical modeling...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-1105
... grain size. These results indicate that rock textures such as grain size considerably affects the geometry, surface roughness and micro-fracture mechanism of hydraulically induced cracks. Upstream Oil & Gas mechanism plagioclase specimen hydraulic fracturing Ishida experiment plane...
Proceedings Papers

Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-1203
... of coalescence are recorded in each test. A strong dependence between the crack pattern produced and the flaw arrangement is observed. Various geometry factors are introduced to explain this dependency. Two types of shear cracks can initiate from the tips of the flaws: coplanar and oblique shear cracks. Two new...

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