A5033547708- Coal Properties and Utilization
- Rock Mechanics and Modeling
- Geomechanics and Mining Engineering
- Geoscience and Mining Technology
- Geotechnical and Geomechanical Engineering
- Methane Hydrates and Related Phenomena
Liaoning University
2023
Liaoning Technical University
2022
Water from hydraulic technology affects the desorption of gas coal seams. Gas behavior is critical information for control in mines. In this study, a designed seam water injection simulation experimental device was utilized to conduct dynamic experiments on samples at different adsorption equilibrium pressures, analyzing law under injection, as well role replacement, imbibition and blockage desorption. The results showed that altered rate coal, causing fluctuating attenuation water-injected...
It is of great significance to study the pattern displacing methane gas with water in coal seam injection process for prevention and control disasters. A two-phase displacement test device was used conduct experiments on samples displace under different pressures, influence pressure analyzed. The results show that same time, ratio displaced increases increase pressure. rate at stage without discharge, while pressures differed slightly; later stage, a higher sample faster attenuation due...
To address the difficulty in preventing and controlling coal gas outbursts (carbon dioxide), based on fact that exhibits stronger adsorption to water molecules than carbon dioxide molecules, a seam injection process displacing prevent is proposed. An experimental two-phase displacement device designed study mechanism of dioxide. Experiments with same pressure different equilibrium pressures for desorption under are carried out. The variation laws amount, rate ratio analyzed. results show...