... reservoir simulation consistency parameter invariant bifurcation analysis continuous traction Upstream Oil & Gas strong discontinuity bifurcation condition instability traction cap plasticity model constitutive model deformation discontinuous bifurcation discontinuity weak...

...1. INTRODUCTION The dependence of permeability on direction or permeability anisotropy in porous media has been confirmed by many field studies. The existing reservoir simulators usually deal with permeability anisotropy in such a way that the permeability in the principal directions may vary...

... wellbore integrity Fluid Dynamics Reservoir Characterization reservoir geomechanics Wellbore Design Upstream Oil & Gas displacement subsidence cylindrical surface Reservoir Compaction compressibility compaction shear stress element analysis reservoir simulation Modeling...

... & Gas displacement mechanism reservoir simulation upper block rotation middle block numerical simulation slope failure North Pit post-1996 geometry plastic deformation lower block metals & mining east wall slope velocity mining company comer slope failure slope displacement...

.... hydraulic fracturing groundwater influx epm approach complex reservoir discrepancy fracture network transmissivity correlation network model tunnel length reservoir simulation REV scale block conductivity different realization conductivity estimate fracture scaling method Upstream Oil...

... ABSTRACT This paper deals with developing a rational framework for quantifying and controlling the uncertainty in predictions associated with poro-elastic models of formations used in reservoir simulators for oil recovery. It aims at integrating data collection with model-based reservoir...

..., stable, effective, and works also for non linear rock mass behaviour. For illustration, this method has been applied to a subsidence problem in a mining area, to a shallow tunnel numerical model, and to a tunnel excavation case history. reservoir simulation back analysed metals & mining...

...) Comprehensive Rock Engineering. Vol3: 839-861. Pergamon Press: Oxford-New York-Seoul-Tokyo. 1984 Reservoir Characterization strength failure zone large-scale direct shear test final stage normal stress strength parameter reservoir simulation displacement direct shear test discontinuity...

... to use the analysis of infinitesimals in studying fractured rocks [Barenblatt, Zheltov, and Kochina [1961], p. 853]. fluid modeling reservoir simulation hydraulic conductivity dimensional case hydraulic fracturing Upstream Oil & Gas hydraulic head semi-analytical solution dimensional...

... engineering granular media discontinuous deformation analysis University calculation contact position inertia matrix DDA displacement time step gravity matrix reservoir simulation particle Computation stress distribution mechanics Rock Mechanics, Auberttn, Hassam &Mitn (eds) ¸ 1996 Balkema...

... sedimentation and consolidation. reservoir simulation sedimentation plane configuration Upstream Oil & Gas direct shear test DDA method tunnel excavation particle horizontal deposit deep excavation cobble-gravel deposit clean cobble-gravel deposit excavation open excavation bedding...

... & Gas impervious barrier discontinuous deformation system equation multiphase flow modeling fluid pressure solid block Fluid Dynamics mesh boundary discontinuous deformation analysis formulation manifold method Eqn fluid element reservoir simulation displacement outer boundary...

... the multiple keyblocks possible, the optimum tunnel orientation is determined. optimum tunnel orientation Dissertation design curve orientation maximum keyblock size application keyblock unit-cell method Goodman reservoir simulation radial coordinate optimum orientation Block Theory jointed...

..., the widely used empirical Hoek-Brown type failure criterion when written in shear stress (t) versus normal stress (s) space is derived using the commonly used critical exponent of ß = 0.33. reservoir simulation transition phase transition scaling method exponent critical point Reservoir...