... well control laboratory test Reservoir Characterization Berea sandstone total axial stress boundary condition pore pressure experiment Upstream Oil & Gas axial stress radial stress annular pressure drilling Engineering cylinder inversion poroelastic hollow cylinder hollow...

... to compare favorably with test results on thick cylinders, published by Zoback et al. , (1977), Medlin and Massé (1979) and Rummel (1987) reservoir geomechanics Upstream Oil & Gas cylinder hydraulic fracturing strength Reservoir Characterization ultimate pressure fluid penetration Rummel...

... is discussed in terms of the fracture electrification and accelerating movement of charge. Results indicate the possibility of developing a portable system to forecast outbursts. Reservoir Characterization metals & mining strength cylinder radiation electrification Upstream Oil & Gas EME...

... in this study. Four different shapes of boulders: spherical, cylinder, hexagonal prism and cube are prepared. Images of each test are captured by using a high-speed camera. Based on the experimental study, it is found that the coefficients of restitution are strongly affected by the elastic modulus...

... and calibration of experimental data with proper handling of the known governing coupled processes. Herein, the software and its underlying fundamental solutions are presented. structural geology Rock Deformation Upstream Oil & Gas cylinder Reservoir Characterization displacement control mode...

... Characterization Upstream Oil & Gas cylinder hydraulic fracturing strength drilling fluids and materials point load strength test double impact test fragmentation rigid platen compression test fracture WEI brittle sphere impact energy static compression hiramatsu mechanics experiment...

... with experimental data, and thus provides an improvement over Chen's (1970) original formula. reservoir geomechanics axial stress prediction size effect cylinder rock strength normalized hoop axis Upstream Oil & Gas formula alb 0 tensile stress Yuan Reservoir Characterization double-punch...

... ABSTRACT: The thick-walled cylinder test has become increasingly widely used recently as a means of determining minimum mud weights while drilling for hydrocarbons and maximum drawdowns during production, and as a way of validating elastoplastic models of rock behaviour. A set of such tests...

..., in a 10 mm thick and 30 cm diameter aluminum cylinder. The complete load-deformation responses were recovered from simultaneous compression on composite pillar-backfill specimens. This paper presents the preliminary results obtained on failure characteristics of model pillars and the interaction of pillar...

... from triaxial tests on Castle gate sandstone. A comparison is presented between predictions obtained from the two models and experimental data from hollow cylinder tests. drilling fluids and materials stress component sandstone material parameter Wellbore Design cylinder mohr-coulomb model...