... integrity isrm international symposium asian rock mechanics symposium 29 hydraulic fracturing crack length Injection Rate fracture breakdown pressure borehole size granite Wellbore Design zhuang borehole diameter pressurization rate Experimental Investigation of Effects of Borehole Size...

... of artificial notch on CCNSCB test is analyzed by XFEM in order to clarify the geometry of crack front in a process of cracking. Analyzing stress intensity factors of specimen with the calculated geometries of crack front during the cracking process by FEM, the relation between crack length and stress intensity...

... reservoir geomechanics Upstream Oil & Gas hydraulic fracturing Artificial Intelligence Game Theory computer code crack length stability rock mass stability analysis discontinuity flexural Reservoir Characterization Wellbore Design fracture mechanics slope stability analysis...

... Reservoir Characterization Upstream Oil & Gas energy release rate fluid pressure hydraulic fracturing Engineering crack length reservoir geomechanics fracture mechanics oil reservoir geometry crack propagation structural geology plastic deformation crack tip critical pressure...

... to the applied load, pure shear is provided along the crack line. Depending on the crack length and the centre-hole radius, the angle of pure shear deformation varies between 20o and 35o. The shear fracture test data obtained for a rock material using the proposed sample is in good agreement with the classical...