... were conducted in different volume fractions of rock, confining pressures, and cyclic loading rates. Results show the strain hysteresis curve increases from sparse to dense with the increase of the confining pressure, showing a significant strain-softening characteristic. The elastic strain energy...

... science shale reservoir boundary characteristic equation International Geomechanics Symposium IGS-2022-0065 Simulation of carbon dioxide fracturing fluid loss in shale reservoirs Nianyin Li, Jiajie Yu State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum...

... characteristic complex reservoir hydro-mechanical coupling model cavity fracture-cavity carbonate reservoir engineering shear displacement history Abstract Fracture-cavity carbonate reservoirs have abundant reserves of crude oil in place, but they are composed of matrix, fractures and cavities...

... bigger than fractures. That means the vugs may hugely influence the geomechanical characteristics nearby, then impact the direction and the length of hydraulic fractures. Besides that, the internal fluid pressure of the vugs may attract or repel the fractures. Therefore, we establish a fracture...

... angle shrinkage salt rock deformation characteristic wellbore shrinkage deviation angle salt-gypsum rock mechanical model creep xinghuo area creep rate ARMA/DGS/SEG International Geomechanics Symposium 21 10 Numerical Simulation of Creep In Salt-gypsum Formation of Directional Well...

... 0.18 0 20 40 60 80 Test Pressure (MPa) Fig. 2. Result of triaxial experimental It can be seen from the experimental results that carbonate rocks in the middle and low confining pressure areas show good elastic and brittle characteristics, while the carbonate rocks in the high confining pressure areas...

..., the study of mineral composition, microstructure and mechanical tests was carried out. It is found that the middle-deep shale in Bohai bay basin not only has typical characteristics of hard brittle shale, but also has certain hydration characteristics. Based on the experiment results, wellbore stress...

... ABSTRACT: The volcanic basalt and breccia reservoirs in Sichuan, China are dense and highly heterogeneous. Lithology and in-situ stress characteristics have important effects on hydraulic fracture propagation. In this study, basalt and breccia outcrops were made into 300mm × 300mm × 300mm...

... ABSTRACT: The acoustic and mechanical properties of rock can reflect the characteristic information of rock pore structure and mechanics. During the drilling process, the borehole rock is soaked in the drilling fluid for a long time, and studying the influence of the drilling fluid...

... digital core technology complex reservoir pore characteristic triaxial compression test digital core grayscale image porosity ARMA/DGS/SEG International Geomechanics Symposium 20 129 Shear-induced deformation characterization of oil sands sample based on digital core technology Huiwen Pang1,2...

... al., 2011; Cipolla, et al., 2011). Studies suggest that HFs induced in heavily jointed rocks, are ARMA/DGS/SEG International Geomechanics Symposium 20 74 Characteristics of Hydraulic Fractures in Terms of the Matrix Permeability and the Natural Fracture Density Roshankhah, S. California Institute...