... Abstract The strain softening behavior of the rock-encased-backfill (RB) structure decides the stability of the underground backfilling stope during cyclic excavation and blasting. To investigate the cyclic failure behavior of the RB specimen, a series of triaxial cyclic loading experiments...

... specimen thickness subsidence geomechanics International Geomechanics Symposium IGS 2022-127 Compaction and Subsidence Geomechanics: A Case Study from the North Sea Green, S. Ikon Science, London, UK Hickman, R.J. formerly Ikon Science, Houston, TX, USA Cox, P. IOG PLC, London, UK Copyright 2022 ARMA...

... oil shale shale oil bedding plane interaction hydraulic fracturing fracture fracture propagation upstream oil & gas shale gas strength plane strength diversion cohesive strength hydraulic fracture simulation scenario complex reservoir plane propagation specimen tensile...

... specimen The outcrops used in the experiment were taken from Sichuan Basin. The physical parameters of experimental specimen are illustrated in Table 1. Table 1. Physical properties of experimental specimen. Property basalt rock Unit Modulus of elasticity 44 GPa Poisson s ratio 0.3 Porosity 15...

... characterization complex reservoir liquid co 2 experiment fracturing fluid pump rate principal stress difference fracture bedding plane viscosity specimen horizontal principal stress wellbore horizontal bedding plane fracture morphology principal stress stress difference ARMA/DGS/SEG...

... difficult to characterize the shear-induced microcrack of it. The oil sands specimens from Karamay, treated as 25×50 mm standard core pillar, were scanned before and after the triaxial compression test and a total number of 3400 grayscale images were obtained respectively. The grayscale images are segmented...