Changes in the petrophysical properties of coal subjected to liquid nitrogen freeze-thaw–a nuclear magnetic resonance investigation L Qin, C Zhai, S Liu, J Xu, G Yu, Y Sun Fuel 194, 102-114, 2017 | 199 | 2017 |
Pore structure in coal: pore evolution after cryogenic freezing with cyclic liquid nitrogen injection and its implication on coalbed methane extraction C Zhai, L Qin, S Liu, J Xu, Z Tang, S Wu Energy & Fuels 30 (7), 6009-6020, 2016 | 187 | 2016 |
Fractal dimensions of low rank coal subjected to liquid nitrogen freeze-thaw based on nuclear magnetic resonance applied for coalbed methane recovery L Qin, C Zhai, S Liu, J Xu, S Wu, R Dong Powder Technology 325, 11-20, 2018 | 116 | 2018 |
Mechanism and application of pulse hydraulic fracturing in improving drainage of coalbed methane J Xu, C Zhai, L Qin Journal of Natural Gas Science and Engineering 40, 79-90, 2017 | 115 | 2017 |
Mechanical behavior and fracture spatial propagation of coal injected with liquid nitrogen under triaxial stress applied for coalbed methane recovery L Qin, C Zhai, S Liu, J Xu Engineering Geology 233, 1-10, 2018 | 106 | 2018 |
The characteristics and main influencing factors affecting coal and gas outbursts in Chinese Pingdingshan mining region C Zhai, X Xiang, J Xu, S Wu Natural Hazards 82, 507-530, 2016 | 105 | 2016 |
Evolution of the pore structure in coal subjected to freeze− thaw using liquid nitrogen to enhance coalbed methane extraction L Qin, C Zhai, J Xu, S Liu, C Zhong, G Yu Journal of petroleum science and engineering 175, 129-139, 2019 | 92 | 2019 |
Characterisation and evolution of the full size range of pores and fractures in rocks under freeze-thaw conditions using nuclear magnetic resonance and three-dimensional X-ray … Y Sun, C Zhai, J Xu, Y Cong, L Qin, C Zhao Engineering geology 271, 105616, 2020 | 85 | 2020 |
Failure mechanism of coal after cryogenic freezing with cyclic liquid nitrogen and its influences on coalbed methane exploitation L Qin, C Zhai, S Liu, J Xu, Z Tang, G Yu Energy & Fuels 30 (10), 8567-8578, 2016 | 78 | 2016 |
Experimental study of pulsating water pressure propagation in CBM reservoirs during pulse hydraulic fracturing C Zhai, X Yu, X Xiang, Q Li, S Wu, J Xu Journal of Natural Gas Science and Engineering 25, 15-22, 2015 | 75 | 2015 |
Pore variation of three different metamorphic coals by multiple freezing-thawing cycles of liquid CO2 injection for coalbed methane recovery J Xu, C Zhai, S Liu, L Qin, S Wu Fuel 208, 41-51, 2017 | 72 | 2017 |
Factors controlling the mechanical properties degradation and permeability of coal subjected to liquid nitrogen freeze-thaw L Qin, C Zhai, S Liu, J Xu Scientific reports 7 (1), 3675, 2017 | 69 | 2017 |
Fracturing mechanism of coal-like rock specimens under the effect of non-explosive expansion C Zhai, J Xu, S Liu, L Qin International Journal of Rock Mechanics and Mining Sciences 103, 145-154, 2018 | 68 | 2018 |
Feasibility investigation of cryogenic effect from liquid carbon dioxide multi cycle fracturing technology in coalbed methane recovery J Xu, C Zhai, S Liu, L Qin, Y Sun Fuel 206, 371-380, 2017 | 61 | 2017 |
Petrological and ultrasonic velocity changes of coals caused by thermal cycling of liquid carbon dioxide in coalbed methane recovery J Xu, C Zhai, PG Ranjith, Y Sun, L Qin Fuel 249, 15-26, 2019 | 58 | 2019 |
A flexible gel sealing material and a novel active sealing method for coal-bed methane drainage boreholes X Xiang, C Zhai, Y Xu, X Yu, J Xu Journal of natural gas science and engineering 26, 1187-1199, 2015 | 58 | 2015 |
Experimental study on coal pore structure deterioration under freeze–thaw cycles C Zhai, S Wu, S Liu, L Qin, J Xu Environmental Earth Sciences 76, 1-12, 2017 | 56 | 2017 |
Investigation of temperature effects from LCO2 with different cycle parameters on the coal pore variation based on infrared thermal imagery and low-field nuclear magnetic resonance J Xu, C Zhai, S Liu, L Qin, R Dong Fuel 215, 528-540, 2018 | 55 | 2018 |
Experimental study on pore structure evolution of coal in macroscopic, mesoscopic, and microscopic scales during liquid nitrogen cyclic cold-shock fracturing Y Sun, C Zhai, J Xu, Y Cong, Y Zheng Fuel 291, 120150, 2021 | 54 | 2021 |
Evaluation research of the fracturing capacity of non-explosive expansion material applied to coal-seam roof rock J Xu, C Zhai, L Qin, G Yu International Journal of Rock Mechanics and Mining Sciences 94, 103-111, 2017 | 46 | 2017 |