... and will be progressively built, operated and finally closed over a roughly 150 years period. gas injection method upstream oil & gas enhanced recovery hydraulic fracturing callovo-oxfordian claystone pgz1031 borehole cox claystone solid waste management borehole claystone fracture pgz1201 reservoir...

... et al., 2017). Hence, rock mass damage is caused by the initiation, accumulation and growth of stress-induced cracks or existing fractures in rock mass (Cai et al., 2001). hydraulic fracturing reservoir characterization upstream oil & gas artificial intelligence neural network metals...

... and support design. upstream oil & gas reservoir characterization mechanism reservoir geomechanics hydraulic fracturing directionality triaxial compression plastic strain increment ratio dilation contraction characteristic directional dilation contraction characteristic plastic-flow...

... Introduction Hot dry rock (HDR) is an abundant source of geothermal energy, which is normally buried in the depth of 3∼10km (Gringarten, 1975; Smith, 1983; Ghassemi et al. , 2003; Bruel, 2007). Due to the extremely low matrix permeability of HDR, hydraulic fracturing technology is currently an effective...

..., and discussed the applicable conditions of cubic law. hydraulic fracturing production control characteristic upstream oil & gas reservoir surveillance fracture sichuan university fractal dimension production monitoring hydraulic gradient rock mechanic correspondence fluid dynamics flow...

... importance in engineering projects involving rock materials, where cracks are omnipresent. Worth mentioning among them are thermal (e.g. geothermics, high-level radioactive waste disposal, etc.), mechanical (e.g. pillar/cave stability in mining, etc.), hydraulic/chemical (e.g. hydraulic fracturing...

... Abstract Estimating the fracture toughness at confining pressure is valuable for a number of practical applications such as hydraulic fracturing used to estimate the in-situ stress or enhance oil and gas extraction from a reservoir, and disposal or safe storage of radiative waste...

... of the most important considerations for geothermal energy development in non-hydrothermal settings is the use of hydraulic fracturing technology to establish a fracture network to effectively conduct fluid between injection and production wells. The purpose of fracturing is to improve the conductivity...

... and lead to opening the crack. Mode II is the in-plane sliding or shearing mode, acting in the direction of crack extension. Mode III is tearing, or the anti-plane mode, in which the crack surfaces shear relative to each other (Behraftar et al. 2017). hydraulic fracturing ccnbd specimen isrm...

... is based on the analysis of the specific surface area and fractal dimension of void factor of coal (pores and cracks) by SANS. hydraulic fracturing calculation barenblatt fractal dimension upstream oil & gas fracture cohesion dependence strength relation deformation reservoir...

... tranquil hydraulic fracturing characteristic fracture reservoir characterization uniaxial compression mechanism amplitude prediction sandstone ae characteristic university significance specimen rock mechanic chinese journal acoustic emission characteristic Rock Mechanics for Natural...

... parallel to fracture surface. fractal dimension dimension roughness upstream oil & gas reservoir characterization fracture strength journal chinese academy reservoir geomechanics granodiorite mechanism electron microscopy apparatus rock mechanic hydraulic fracturing particle...

... by geometric parameters such as shape, size, number, angle and distribution of defects. hydraulic fracturing compression fracture geometry reservoir geomechanics loading international journal upstream oil & gas reservoir characterization coalescence uniaxial compression specimen rock...

... fracture trajectory uniaxial compression hydraulic fracturing flaw rock-like specimen international journal evolution mechanism ts regime einstein specimen displacement fracture wong selection Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón...

... Abstract The effective stress principle of Biot's consolidation theory is first introduced into deformation reinforcement theory to model directional hydraulic fracturing. The unbalanced force considering the effective stress of fluid is derived and a more effective vector type criterion...

... Abstract In the seismological monitoring of hydraulic fracturing, the characteristics of fractures determine the mechanical behavior of rock masses, particularly their main orientation, seepage, and properties of rock. Besides, the external load and boundary conditions can influence the stress...

... formations (Curtis & Montgomery 2002, Kerr 2010, Struchtemeyer et al. 2012). Owing to the geological characteristics of shale in gas reservoirs that generally show low penetrability and remarkable brittleness, large-scale hydraulic fracturing treatments are usually essential in the development of shale...

... geomechanics diameter structural geology reservoir characterization specimen sandstone corvio sandstone hydraulic fracturing fracture toughness specimen geometry blanco mera granite scb specimen sandstone 0 experimental investigation pseudo-compact tension pct specimen canal-vila mode-i...

... data. The results indicated that the fracture toughness of predication model had a good correlation with the measured data from CCNBD. The model can provide continuous data of fracture toughness mode I along the well bore for field hydraulic fracturing operation, and has certain guiding significance...

... Abstract We present the design, mechanical modeling and testing of a low-cost true triaxial (TT) device aimed at the development of hydraulic fracturing experiments in rocks up to stresses of 60 MPa acting over the faces of 150 mm-edge cubic samples. The system is designed around a structural...