Charge signals characterizing the influence of bedding …
These findings highlight the effectiveness of charge signals in characterizing the shale damage evolution under loading and unloading conditions. 1. Introduction. Previous studies have …
Evaluation of the performance of shale loading equipment …
A research and development program was conducted to investigate the technical feasibility of room-and-pillar mining with explosives, crushing and Gas-Combustion Retorting techniques …
Crushing and embedment of proppant packs under cyclic loading…
Two critical downhole degradation mechanisms; proppant crushing and embedment were investigated. Selection of appropriate proppant type, size and concentration can …
Study on Mechanical Properties of Shale Under …
A higher loading rate is helpful to increase the brittleness of the shale, but a lower loading rate is beneficial to forming more cracks and a greater degree of fracture in the shale matrix. The effect of the loading rate on the …
Proppant Crushing Mechanisms Under Reservoir Conditions …
Proppant crushing, a major proppant failure mechanism, occurs in geothermal energy and oil/gas stimulation production stages when the level of net stress exerted on the …
Dynamic mechanical behavior and damage constitutive …
Table 4 presents the fracture size distribution of shale after impact loading, the fragmentation of samples increases gradually and the crushing size decreases as the increase …
Experimental study on shale-breaking of special-shaped …
we research the crushing process, cutting load, and crushing energy consumption and conducted eld testing of the anomalous cutter bit to deepen our understanding of the process of shale …
Evaluation of the performance of shale loading equipment for oil shale
A research and development program was conducted to investigate the technical feasibility of room-and-pillar mining with explosives, crushing and Gas-Combustion Retorting techniques …
Dynamic Compression Damage Energy Consumption and …
Studying the relationship between energy consumption and crushed size of shale under different loading conditions is the key to efficient shale cracking.
Structure feature and compressive crushing behavior of
Local crushing at the loading point was occasionally observed; such local crushing could be dominant when the loading point happened to be located at or near a large internal …
Study on Mechanical Properties of Shale Under Different Loading …
A higher loading rate is helpful to increase the brittleness of the shale, but a lower loading rate is beneficial to forming more cracks and a greater degree of fracture in the shale …
Mechanical Behavior of Weathered Compacted Shales
In this paper, deformational behavior of various shales is studied under isotropic consolidation and triaxial shear loading over a wide range of soaking period.
Charge signals characterizing the influence of bedding angles on shale
These findings highlight the effectiveness of charge signals in characterizing the shale damage evolution under loading and unloading conditions. 1. Introduction. Previous studies have …
Compressive and Tensile Strength Anisotropy of Friable …
Hertzian grain-contact fractures were observed in both the sandstone and thin-bed shale at 10–130 MPa effective pressure (Figs. 10c–f and 11c–f) with intragranular fracturing …
Effects of Cyclic Loading on the Mechanical Properties of …
We investigated the mechanical properties of mature bedding shale under cyclic loading conditions, with an application to the design of hydraulic fracturing in shale gas wells. …
Effects of Cyclic Loading on the Mechanical Properties of …
The shale rock mass is subjected to repeated loading and unloading cycles; therefore, accurate assessment of the shale reservoir crushing effect and long-term stability of …
Experimental study on shale-breaking of special-shaped
To enhance the drilling efficiency and extend the service life of PDC (Polycrystalline Diamond Composite) bits in shale formations, this study delves into the rock-breaking …
Crushing and embedment of proppant packs under cyclic …
Two critical downhole degradation mechanisms; proppant crushing and embedment were investigated. Selection of appropriate proppant type, size and concentration can …
Greenhouse Gas Emissions during Oil Shale Crushing …
time at the YJ Oil Shale Comprehensive Utilization Co., Ltd. (YJ1); and three blocks of oil shale with grain sizes larger than 65 mm for the second time (YJ2). The color of the oil …
Crushing and embedment of proppant packs under cyclic loading…
An identical loading rate of 14 kN/min was maintained until the maximum desired load was reached. The maximum desired load adopted in proppant embedment testing was …
Red Shale
Want Red Shale delivered to your job-site or home? We offer delivery for all our aggregates and materials. Don't hesitate to give our experinced team a call at 570-721-2606 to find the …
Dynamic Compression Damage Energy Consumption and …
This effect enhanced crushing of the shale samples. The energy absorbed by the vertical-bedding shale sample was greater than that absorbed by the parallel-bedding sample, reflecting their …
Shale | Properties, Composition, Formation, Uses
Shale Uses. Shale has many commercial uses. It is a source material in the ceramics industry to make brick, tile, and pottery. Shale used to make pottery and building …
Experimental and Theoretical Analysis of Casing Collapse
Shale gas as a new type of clean energy, has attracted wide attention at home and abroad. ... results show that casing deformation is the result of both strength weakening and …
Crushing and embedment of proppant packs under cyclic loading…
Semantic Scholar extracted view of "Crushing and embedment of proppant packs under cyclic loading: An insight to enhanced unconventional oil/gas recovery" by K. Bandara et al.
Fractional model for simulating Long-Term fracture …
Multi-staged horizontal well hydraulic fracturing is a necessary technology for the development of shale gas reservoirs [9], [35], [15].Different from the conventional reservoir …
Using Nanoindentation to Characterize the Mechanical and …
We examine the creep strain rate sensitivity through the characterization of the creep behavior of shale under different indentation loads and loading strain rates and discuss …
Fracture characteristics and energy dissipation law of shale …
Shale fracture and energy dissipation are the basis of reservoir fracturing effect evaluation. The damage and fracture mechanism of shale under dynamic impact load is the …
Using Nanoindentation to Characterize the …
We examine the creep strain rate sensitivity through the characterization of the creep behavior of shale under different indentation loads and loading strain rates and discuss a potential deformation mechanism.