... assessment ant track variation bedding displacement ARMA 22 0867 A new model for risk assessment of fault slip induced by hydraulic fracturing of shale gas in the Sichuan Basin Zhang Hui China University of Petroleum (Beijing), Beijing, China Li Jun China University of Petroleum-Beijing at Karamay...

... propagation law of the three types of reservoirs is obtained, and the suggestions for fracturing are put forward. The results showed that there are two significant characteristics in the study area. One is the development of bedding, which is easy to form horizontal fractures. Influenced by bedding and stress...

... retrieved backfill australia tunnel bedding armco superlite fosterville culvert construction bridge-plate two-radius arch ARMA 22 0527 Feasibility Study and Design of an Underground Entry/ Access Structure at an Underground Gold Mine B.B. Carlisles Ballarat Gold Mine, Ballarat, VIC, 3350...

... of multi-cluster fractures in the Lucagou shale reservoir and use the acoustic emission (AE) to monitor the dynamic process of hydraulic fracturing. The results show that the fracture interference starts from the initiation stage and is seriously affected by the bedding structure. The fracture interference...

.... Brittle wing cracks appear from the indenter along the shale bedding, but indentation depth is dominated by ductile plastic shear deformations governed by extreme compressive stress magnitudes below the indenter-shale contact. Simultaneous analysis of the experimental loading-unloading indentation curves...

..., and bedding orientation. We found that samples sheared parallel to bedding were less likely to develop numerous secondary fractures. Fracture transmissivities tended to increase with continued shear and secondary fracture development, but a high variance exists between sample behavior. In some instances...

... and to investigate the effect of different boundary conditions to provide feedback to the experimental program. Specifically, in this paper we focus on studying the effect of beddings and their orientation on the propagation of hydraulically induced fractures. For this purpose, we built a model recreating...

... Oil & Gas diameter plug Brazilian tensile strength Rock mechanics geomechanics Symposium hydraulic fracturing strength bedding sidewall core tensile strength Reservoir Characterization Berea sandstone drilling operation tight sandstone fracture toughness evaluation utilization...

... collected from shale outcrops. Rough fracture surface was scanned and carving technique was utilized to duplicate rough fracture surfaces on flat rock samples. After that, unpropped and propped fracture conductivity was tested. Experimental results indicated that shale samples perpendicular to bedding...

... of applicability of ubiquitous joint models and when they fall short of capturing the correct deformation behaviour. The paper will show that ubiquity does not equate to continuity and that ubiquitous joint models are not able to capture the correct behaviour for discontinuities of large extent, such as bedding...

... orthogonally oriented samples of B Shale. Figure 5 Skempton coefficients BV and BH derived from calculated slopes of the pore pressure vs. axial stress curves (Figure 4) for B Shale samples loaded normal to bedding (BV) and parallel to bedding (BH). The slopes were averaged over 50 data points, corresponding...

...-induced matrix swelling. An apparent anisotropic nanopore structure is shown in Illinois coal cut perpendicular to bedding, in which the degree of anisotropy generally increases with increasing pore size. Uniaxial compression perpendicular to the bedding can cause a “two-stage” pore contraction in both...

... of anisotropy planes (e.g. bedding, foliations, pervasive joints, etc However, with the limitation of typically only being able to model an apparent anisotropy plane orientation in two-dimensions due to its relative direction to the slope geometry (Bar & Weekes, 2017; McQuillan et al. 2018). In many instances...

... factors including geological discontinuous, size effects (properties differ from the laboratory-scale to field), loading conditions, and temperature. In shale formation, the existing bedding and mix-mode stress condition make the hydraulic fracture path more complicated than that in a homogeneous...

... ABSTRACT: We measure acoustic travel-times in Green River shale both parallel and perpendicular to bedding to observe the effects on petrophysical properties of interactions with water (fracture fluids) for different durations. X-ray diffraction shows the samples dominantly comprise carbonate...

... geomechanics displacement plane mechanical property orientation damage zone experiment rotation host rock deformation moduli Reservoir Characterization fault core laboratory bedding fracture Fault Zone deformation anisotropy 1. INTRODUCTION Fault zones are commonly described as composed...

...1. INTRODUCTION The use of large underground openings for hydroelectric, water treatment and other applications in sedimentary rock, often with horizontal bedding, has resulted in the need to explore various aspects of rock behavior including both construction sequence and creep-induced...

... to bedding directions and the correspondent changes in pore pressure in the specimen are recorded. This has lead to interesting observations on the connections between the directional-dependent solid and bulk response of rock. Reservoir Characterization compressibility back pressure bedding pore...

... ABSTRACT: In this paper, we report on a scoping study that was prompted by operational issues through an Oligocene smectite-rich shale that involved changes in borehole inclination with respect to the bedding. A core characterization workflow is used to specifically probe geomechanical...

... of legacy data sets as well as the designing of better informed geomechanical testing programs in core analysis. Louis sandstone reservoir geomechanics axial stress stress tensor Reservoir Characterization strength intergranular contact mechanical anisotropy bedding rothbach sandstone...