... blocks are generated in the vicinity of the fault to simulate a fracture network within the fault damage zone. A case study is presented and the results indicate that using the UDEC the normal and shear displacements are comparable to an impermeable X-FEM model. However, there is additional pore pressure...

... reaction between drilling fluid and pore fluid in formation, in order to analyze the thermal and chemical effect on pore pressure and effective stresses, a generalized plain strain finite element model is developed, the model is also available for any inclined well drilled in transversely isotropic...

... characteristics and pore pressure for drilling fluids in the strata around the wells were analyzed. The damage zones were mainly found in the zones nearby the well in the direction along minimum horizontal in-situ stress; the permeability of the shale within the damage zones was increased significantly. This made...

... instability anisotropic coal seam Wellbore Design strength coal seam horizontal well Upstream Oil & Gas pore pressure mechanical property wellbore integrity Chen borehole stability build section plane Poisson equation mechanics anisotropy tensile strength TransitDevelopmentinRockMe...

... 30 40 Y.W.C. (b) -ISO -120 -90 -60 -30 0 30 Pore pressure (kPa) 10 20 30 40 (c) V.W.C. (d) -ISO - 120 -90 -60 -30 0 30 Pore pressure (kPa) (e) 10 20 30 40 V.W.C. -ISO -120 -90 -60 -30 0 30 Pore pressure (kPa) Figure 3. Distributions of volumetric water content and results suggest the modification...

.... It indicated that, the temperature distribution, pore pressure and mechanical behavior are greatly influenced by the anisotropic characteristic of Opalinus clay in HE-D. 1 INTRODUCTION Deep geological repository of high-level radioactive wastes is one of the most promising options to isolate wastes from...