... tunnels to determine similarities and differences. reservoir characterization structural geology gotschna tunnel road tunnel reservoir geomechanics upstream oil & gas correlation counter pressure mpa sulphate-bearing rock ground transportation steiner eurock 2020 heave lining...

... and schist are shown in Figs. 1–3, respectively. Upstream Oil & Gas Rock mechanics specimen procedia engineering 191 uniaxial compression reservoir geomechanics artificial geomaterial lateral pressure MPa ultimate strength Reservoir Characterization bedding angle international journal...

... induced microseismicity data were obtained from the stimulation test upon 140 m long open hole section at the well bottom. Wellhead pressure was up to 89 MPa and considerable level of flow rate was attempted up to 47 L/sec. Microseismicity observation showed a trend of lager and more frequent seismicity...

..., and laboratory investigation of the deformational behavior of rocks under alternative triaxial loading regimes is necessary. reservoir geomechanics CTC uniaxial amban mishra procedia engineering 191 deformational response experiment MPa loading Reservoir Characterization volumetric strain...

... technique requires tests which give opportunity to evaluate detonators' and highly energetic materials' working in the conditions of growing confining pressures. Upstream Oil & Gas inhibitor detonator gaseous product container detonation MPa ammonium nitrate metals & mining specific...

.... This study was intended for the semi-circular bend (SCB) test, which is one of the ISRM-suggested methods for determining the mode I fracture toughness of rock. The SCB test under various confining pressures from 0 to 10 MPa was performed using Kimachi sandstone. A finite element analysis of the SCB test...

... the earthquake was highly reliable. Reservoir Characterization flow rate borehole hydraulic fracturing interval pressure MPa Upstream Oil & Gas compliance borehole wall packer pressure reservoir geomechanics Yokoyama Earthquake stress measurement vertical stress hf test principal...

... values of PPV W , absolute values of the reduced stresses ranged from 250 to 450 MPa. They were below permissible stress for steel arch support, amounting to σ max = 623 MPa. The vibrations registered for seismic events at Bobrek field site were safe to maintain the stability of the excavations...

..., the average shear strength of grout samples increased with increasing curing time, Cube samples were suggested as a universal shape for testing resin products as they can be easily prepared and tested. metals & mining cohesion MPa Reservoir Characterization strength compressive strength...

... (Chen & Egger 1999). Reservoir Characterization displacement rock joint Upstream Oil & Gas bolt rod procedure reservoir geomechanics Rock mechanics international journal Artificial Intelligence rock bolt MPa enriched finite element procedure stiffness matrix equation...

... loading jaw coefficient reservoir geomechanics Brazilian test specimen apparatus strength direct tensile test MPa stress distribution Reservoir Characterization direct tensile strength tensile strength principle stress distribution new design test apparatus indirect tensile strength test...

... carried out on a discontinuous rock mass of weathered sandstone. Reservoir Characterization Research Institute specimen triaxial test method discontinuity loading Upstream Oil & Gas axial strain MPa cyclic triaxial test triaxial test in-situ triaxial test small strain structural...

... the world show that the ratio k tends to be high at shallow depth and that it decreases at depth (Brown & Hoek 1978, Herget 1988). reservoir geomechanics underground structure Rock mechanics tunnel axis Reservoir Characterization Engineering different loading condition MPa Upstream Oil...

... Characterization laboratory test biaxial compression test wellbore integrity numerical test direct shear test mechanical property matrix Wellbore Design strength strength parameter MPa investigation conglomeratic rock conglomerate Upstream Oil & Gas displacement deformability modulus Costa...

... ABSTRACT: The effective pressure law for the permeability of sandstone is experimentally studied by conducting Darcy's law permeability test under various confining pressure (from 14 to 58 MPa) and pore pressure (from 8 to 23 MPa). Supercritical CO 2 as a pore fluid has been adopted instead...

... brown coal mechanical property reduction jasinge 2010 coalbed methane Upstream Oil & Gas strength saturation pressure Perera brown coal Strength Reduction rc sample ranathunga MPa increment coal sample Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al...

... incipient discontinuity hydraulic fracturing tensile strength incipiency parent rock MPa bedding plane ABSTRACT: This paper addresses the issue of the tensile strength of incipient discontinuities in rock and presents preliminary results from a series of laboratory studies. In most rock masses...

... stress cox claystone consolidation water content creep test experiment MPa clay particle creep rate Clay Rock stress concept porewater deformation creep stiffness ABSTRACT: The long-term deformation behavior of the Callovo-Oxfordian and Opalinus clay rocks has been extensively...

... analysis deformation MPa excavation strength value ABSTRACT: The paper discusses the reasons for the introduction of new mining system. Details of investigations to determine in situ rock mass strength are presented. Back analysis of existing mine tunnels based on visual tunnel observations...

... stress case joint network Reservoir Characterization railway tunnel numerical modeling rock mass tunnel extensometer shallow depth MPa situ stress odenplan station Platform tunnel Magnitude ABSTRACT: At shallow depth, in situ stress can affect significantly the behavior of the rock mass...