... systematically study the role of wellbore volume, viscosity, compressibility, reservoir permeability, poroelasticity and magnitude of minimum horizontal stress on the fracture propagation behavior. It was found that poroelasticity effects are quite important for low viscosity fluids in micro-Darcy reservoirs...

... and by whom the paper was presented. ABSTRACT: Continuum poroelasticity theories provide a macroscopic description of fluid-saturated porous media so that porescale features only emerge in some averaged form. However, therein the specific signature of the underpinning micro-structure is not transparent...

.... It is shown that isotropic models are unable to reproduce the stress changes predicted by the anisotropic models. Pore pressure changes may be underestimated by neglecting the anisotropic nature of the poroelastic Skempton parameters. 1. INTRODUCTION Stress evolution around hydrocarbon reservoirs caused...

... of fault-zone structures, non-seismogenic faults, and mechanically time-dependent formations. Our work illustrates the importance of physics-based modeling that accounts for faults, formations, wells, and poroelasticity in understanding causes of seismicity. 1. INTRODUCTION Fluid injection, including...

... ABSTRACT: In Biot's theory of isotropic poroelasticity, deviatoric stress does not induce pore pressure as the mean stress is the solely factor responsible for such changes. However, for an anisotropic rock the deviatoric stress can induce an undrained pore pressure change, a consequence...

... hydraulic fracturing poroelasticity matrix reservoir geomechanics dahi taleghani inhomogeneity fracture fluid pressure eshelby hydraulic communication mechanics application mechanics geomechanics symposium upstream oil & gas bedayat ellipsoidal inclusion material property...

... theoretically established in the linear theory of poroelasticity by Biot in 1941 [1]. Since then, it has become a powerful theory for modeling three-dimensional fluid flow in deformable porous media in soil and rock mechanics. The earliest theory of poroelasticity has been reformulated by Biot himself [2, 3...

...Rock Mechanics for Indust Amadei, Kranz, Scott & Smeallie (eds) ¸ 1999 Balkema, Rotterdam, ISBN 90 5809 052 3 Experimental evaluation of Biot's poroelastic parameter- Three different methods J.A. Franquet & H.H.Abass PDVSA-INTEVEP, Los Teques, Venezuela ABSTRACT: Biot's constant is used in many...

... of time the ASR test takes. Several cases of core contraction are cited in the literature (Teufel 1985b, Bloch et al. 1997), indi- cating that effects other than the stress relief are present. Temperature variations and poroelastic effects, have been blamed as the major reason for core contractions...

... INTRODUCTION ABSTRACT: An analytical solution of an infinitely long borehole drilled perpendicular to the material isotropic symmetry plane of a transversely isotropic poroelastic medium is provided. The far-field principal stresses have an arbitrary inclination with the borehole axis...

... the manifestation of the pore pressure effect (poroelasticity) in a number practical occasions. A good grasp of these physical mechanisms can equip engineers with the necessary insight to perform prognosis of poroelastic effect for their problems on hand. POROELASTIC COEFFICIENTS Based on the continuum mechanics...

... ABSTRACT ABSTRACT Two problems, a borehole subject to a non-hydrostatic far-field stress and a pressurized crack, are examined within the framework of Biot's theory of poroelasticity. The significance of the coupled diffusion-deformation theory is demonstrated, and the implications...

... ABSTRACT ABSTRACT The strength of completions in producing wells is studied by means of the theories of poroelasticity and poroplasticity. Solutions are obtained for an open hole completion and for a perforated completion modeled as a hemispherical cavity and as a long cylindrical cavity...