... of fractures. By capturing the deformation of fractures and the opening and connectivity variations of microcracks with the constitutive model, the multi-scale structural change-induced permeability variation is modeled by the volumetric averaging method. The constitutive model and permeability tensor...

... geologist flow in porous media permeability fracture reservoir characterization fluid dynamics hydraulic fracturing geological subdiscipline geology reservoir geomechanics simulator aperture evolution fracture aperture society iop publishing iop conf cavity free-face dissolution...

... structural geology fluid dynamics geologist sedimentary rock rock type reservoir characterization silicate-isocyanate composition composition silicate separate-component injection environmental science 861 chinakal institute permeability resin dual-component composition flow...

... sedimentary rock geology reservoir geomechanics permeability clastic rock sandstone geologist flow in porous media society iop publishing iop conf conference matrix permeability environmental science 861 fracture permeability sandstone permeability fluid dynamics rock type...

... Abstract A tight reservoir has low permeability, low porosity, poor pore-throat connectivity, and strong heterogeneity. Hydraulic fracture is an effective technology to develop such reservoirs. However, in the process of fracturing, fracture fluid will cause damage to the formation...

... in the methane desorption. This paper provides the results of a series of experimental studies on seismic action's effect on the permeability of coal and hydraulic fractures. The research has been carried out on a custom designed laboratory bench. The design of the stand provides the effect of elastic vibrations...

... permeability and water filled zones hasn’t been effectively studied. The simulation software COMSOL Multiphysics was used to numerically simulate the natural convection heat transfer within the enhanced stimulated surrounding rock around a single straight roadway with its circular opening, which should...

... geologist mudrock clastic rock rock type sedimentary rock complex reservoir reservoir geomechanics mudstone operation reservoir characterization society iop publishing iop conf reservoir permeability geology shale gas geological subdiscipline fracture drilling characteristic...

... characterization geomaterial fluid dynamics flow in porous media society iop publishing iop conf evolution viscosity geology geological subdiscipline thermal expansion coefficient thm permeability formulation geologist reservoir geomechanics environmental science 861 conference displacement...

... Abstract Two-phase flow in natural fractures is of great importance in many engineering applications, such as geothermal energy utilization and natural gas recovery. Multiple models of relative permeability were proposed, such as the X model, the viscous coupling model, the Corey model...

... Multiphysics. Coal strain and permeability evolution during the reduction of gas pressure under constant confining stress were calculated in the numerical models. Results show that the distribution of pores and fractures is dominant to coal permeability. With gas pressure decreasing, the distribution of strain...

... mathematics of computing fluid dynamics hydrate hydrate saturation particle society iop publishing iop conf conference seepage characteristic flow in porous media sediment environmental science 861 permeability hydrate particle flow assurance hbss hydrate-bearing sediment...

... society iop publishing iop conf viscosity shale gas drilling mudstone environmental science 861 circulation conference intersection permeability circulation risk diffusion equation 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth and Environmental Science...

... such as the permeability of rock mass and water level difference to determine the water sealing effect of the oil storage cavern. Water curtain holes are arranged to realize the water sealing effect of the lower main oil storage cavern to achieve the good circulation of water surrounding the oil storage cavern [1...

... experimental stress conditions, showing an apparent correlation with fracture angles. The acoustic wave velocity increases linearly with the stresses, and the shear wave velocity is strongly affected by fracture angle and anisotropic effective stresses. The permeabilities decrease exponentially and show...

... Abstract Size effect on surface roughness is critical in characterizing the permeable property of rock facture. Based on the three-dimensional morphology of the fracture surface scanning in the field, the size effect on the fracture surface roughness and permeability were investigated. First...

... Abstract This study first developed an original constant-head permeability tester for rocks, which can represent the pressure environment that is deep underground (approximately 1,000 m) and directly measure runoff volume using an electronic balance. Second, this study measured...

... to examine the influence of the fracture aperture, matrix permeability, fracture deformation, and mud viscosity on mud loss. 1. Introduction The fluid flow in deformable porous media with fractures is a research hotspot in the engineering field, and research on mud loss in fractured formations is very...

... permeability of rocks. In this work, some granite samples with different damage degrees were generated by uniaxial compression, which is similar to the stress condition of the surrounding rocks of HLW disposal tunnels. The ultrasonic velocity was simultaneously tested during the compression process...

... Abstract Bentonite contains many pore structures with irregular geometric shapes, with a strong adsorption to various fluids. It swells in the presence of water and could cause a significant change in its microscopic pore structures. This would lead to significant changes in its permeability...