Results 281 to 290 of about 76,051 (383)

Investigating the Dynamic Behavior of Gabbro Specimens With Echelon Joints

open access: yesEnergy Science &Engineering, EarlyView.
Investigating the dynamic behavior of rock specimens with echelon joints based on SHPB tests. ABSTRACT To reveal the influence of dynamic load on the dynamic damage behavior of jointed rock masses, split Hopkinson pressure bar (SHPB) system was employed to test platy gabbro samples with joint angles of 15°, 30°, 45°, 65°, and 75° at an impact pressure ...
Lei Xue   +5 more
wiley   +1 more source

Experimental Study on Prevention of Coal and Gas Outburst by Hydraulic Fracturing in High Gas Coal Mine in Yangquan Mining Area

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT To investigate the hydraulic fracturing mechanism of high‐fluid wells in the Yangquan mining area, coal seams from the Xinyuan and Xinjing mines were selected as research subjects. Experiments were conducted using the TCQT‐III low‐permeability coalbed gas‐phase displacement and production enhancement apparatus, along with the FINESORB‐3120 ...
Zhou Zhang   +7 more
wiley   +1 more source

Failure Law of Soft and Hard Interlayer Overlying Rock in Gently Inclined, Super‐Thick Coal Seam and Research on the Development Height of a Water‐Conducting Fissure Zone

open access: yesEnergy Science &Engineering, EarlyView.
Based on the layered structural characteristics of the strata, this study summarizes four typical overburden structural types under the geological conditions of the 51408 working face. Through theoretical derivation and numerical simulation, the study reveals the stepwise failure characteristics of the overburden and analyzes the variations in ...
Kaijie Duan   +7 more
wiley   +1 more source

Integrated Simulation and Optimization of Reservoir‐Wellbore‐Surface Systems in Ultrahigh Water Cut Oil Fields

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT To address the challenges of poor performance and optimization in ultrahigh water cut oil fields, a comprehensive set of integrated simulation technologies tailored for these conditions was developed. The application of these technologies in multiple ultrahigh water cut oil fields was focused on the unique development characteristics of these ...
Hongmin Yu   +10 more
wiley   +1 more source

Study on Surrounding Rock Control Technology of Gob‐Gob Roadway Driven by Fully Mechanized Caving With Large Mining Height and Small Coal Pillar in Extra Thick Coal Seam

open access: yesEnergy Science &Engineering, EarlyView.
The analysis showed that the roof rock beam fractured above the side of the 5 m small coal pillar due to the influence of an anticline structure, leading to the proposal of an asymmetric control mechanism. Grouting pillars and individual supports were used for support, and the technology was successfully applied in the field, meeting the production ...
Linjun Peng   +6 more
wiley   +1 more source

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