most of the earth's crust contains fluids, and fractures are common throughout the upper part. they exist at a wide range of scales from micro-fractures within grains to major faults and shear zones that traverse the crust. in this paper, the stress-dependent permeability in fractured rock masses have been investigated considering the effects of nonlinear normal deformation and shear dilation o...

Most of the Earth's crust contains fluids, and fractures are common throughout the upper part. They exist at a wide range of scales from micro-fractures within grains to major faults and shear zones that traverse the crust. In this paper, the stress-dependent permeability in fractured rock masses have been investigated considering the effects of nonlinear normal deformation and shear dilation o...

The significant vertical heterogeneity, variations in ground stress directions, and irregular bedding interfaces make it extremely challenging to predict fracture propagation continental shale reservoirs. In this article, we conducted a series of triaxial laboratory experiments on outcrop rocks investigate the effects formation dip angle wellbore orientation crack under horizontal well conditio...

An angle-dependent reflection coefficient is recovered by seismic migration in the angle-domain. We propose a post-migration technique for computing scattering and dip angle common-image gathers (CIGs) from seismic images, extended by the subsurface offset, in relation with wave-equation migration methods. Our methodology suggests a system of Radon transform operators by introducing local trans...

An angle-dependent reflection coefficient is recovered by seismic migration in the angle domain. We have developed a postmigration technique for computing scattering and dip angle common-image gathers (CIGs) from seismic images, extended by the subsurface offset, based on wave-equation migration methods. Our methodology suggests a system of Radon transform operators by introducing local transfo...

Based on the existing research results, a theoretical fracture model of strata under compound impact static and harmonic dynamic load is improved, characteristic parameters (stress intensity factor, T-stress, initiation angle) two far-field stress are determined according to crack dip angle. Additionally, effects distribution field (the angle, degree, number units, area) further calculated disc...

To understand the fracture features of zonal disintegration and reveal failure mechanisms circle tunnels excavated in deep jointed rock masses, a series three-dimensional heterogeneous models considering varying joint dip angles are established. The strength reduction method is embedded RFPA to achieve gradual process, macro mode safety factor, reproduce characteristic phenomenon i.e., disinteg...