... fracture-like breakout drilling fluids and materials bit selection borehole breakout sandstone penetration rate breakout drilling variable Wellbore Design mechanism MPa drilling-fluid flow rate Haimson 1. INTRODUCTION Stress-induced breakouts in vertical holes are the product of compressive...

... reservoir geomechanics structural geology fracture characterization pore pressure dynamic equilibrium critical pore pressure mechanism hydrocarbon column height phase pressure reservoir sand shale dynamic capacity Reservoir Characterization Upstream Oil & Gas pp ss migration...

... mechanism Zoback effective stress principal stress Drilling 1. INTRODUCTION It is standard practice when planning wells to utilize pre-drill seismic data to compute pore pressure and fracture gradient profiles to use as upper and lower bounds on required mud weights for safe drilling (see a recent...

... Reservoir Characterization caprock Upstream Oil & Gas mechanism slip tendency operation fault plane reservoir geomechanics fault reactivation co 2 overburden shear stress fracture geomechanical analysis Magnitude integrity injection pressure change reactivation storage...

... Oil & Gas upward shear wing crack mechanism assemblage macroscale distortion echelon position extension fracture bond failure mining-induced fracture Fracture Zone fracture ARMA/NARMS 04-569 Origin of Mining-Induced Fractures Through Macroscale Distortion White, B. G., Larson, M...

... Upstream Oil & Gas structural geology Reservoir Characterization steady state mechanism natural gas storage salt dome model parameter database specimen creep dome salt material cavern Albuquerque West Hackberry increment Gulf Coast Salt Dome domal salt fracture sandia...

... section halide Upstream Oil & Gas underbalance borehole creep closure mineral dissolution Reservoir Characterization drilling operation mechanism shale creep NaCl creep rate 1. INTRODUCTION Large oil and gas reservoirs are associated with salt structures. Domal structures in the Gulf...

..., Houston, TX, U.S.A. Copyright 2004, ARMA, American Rock Mechanics Association This paper was prepared for presentation at Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS): Rock Mechanics Across Borders and Disciplines, held in Houston, Texas, June 5 9, 2004. This paper...

... Virginia University, Morgantown, W.Va., USA Celina Pezowicz & Mark Bemakiewicz Institute of Mechanical Engineering and Automation, Technical University ofWroclaw, Poland ABSTRACT: The scopc of this research was to evaluate the geometry of the cutting tool in order to cut the coaVrock efficiently...

... array, high speed video filming and the study of rock mass conditions (fractures, joints, rock strength etc.) before and after the experiment. Special investi- gations were carried out to evaluate the mechanism and the magnitude of damage, as well"as the support be- haviour under excessive dynamic...

...Pacific Rocks 2000, Girard, Liebman, Breeds & Doe (eds) © 2000 Balkema, Rotterdam, ISBN 90 5809 1554 Tensional failure and solid-fluid interactions in high porosity chalk R. Risnes, T. Berg, A. Furuvald & T. Paulsen Stavanger University College, Norway ABSTRACT: The mechanical properties of high...

... to UCS, thus permitting a foot-by-foot analysis of sand production potential using the model based on TWC strength. To understand the mechanisms of the correlation, studies were conducted to analyse TWC tests based on a non-linear elaSto-plastic model and to examine microstructures of the tested samples...

... could not be accomplished by any means whatever, without some extra mechanical stabilization. Successful work in sensitive rock requires a careful study of the geological and physical characteristics of the site and a determination of the potential failure mechanisms involved. This paper describes...

... coal stress reservoir geomechanics mechanism coal seam minimum stress coal stress Magnitude Pacific Rocks 2000, Girard, Liebman, Breeds & Doe (005) © 2000 Balkema, Rotterdam, ISBN 90 5809 155 4 The relationship between stress in coal and rock IR.Enever & R.G.Jeffrey CSIRO Petroleum, Glen...

... ABSTRACT ABSTRACT: Numerical simulation of complex pit slope instability at the Homestake Mining Company, Pitch Reclamation Project is presented. Slope monitoring data and field observations suggested that the slope displacement mechanism involved plastic deformation at a lower block, which...

... hypotheses can be postulated and experimental tests can be performed and field observations can be made to support any of these as a valid mechanism for sand production. It is our contention that the mode of failure can- not be, uniquely defined as it depends on a number of variables including: geological...

... metals & mining vicinity northern idaho sericitic quartzite cf 02 vein alene mining district mining district seismicity Idaho Reservoir Characterization quartzite mechanism Whyatt situ stress miner rock burst Upstream Oil & Gas alteration ground condition...

... on the intensity of electromagnetic emission (EME). It was also discovered that the observed EME and acoustic emission occur synchronously, which indicates that they are phenomena initiated by the same events. EME activity intensifies while the loaded coal samples approach the final failure. The EME mechanism...

... 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...

... structural geology calculation Reservoir Characterization Upstream Oil & Gas natural gas storage storage cavern fracture mechanism creep cavern wall Simulation stress measure Munson hydraulic fracturing solution mined storage cavern kinetic equation accumulation deformation...