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作者:... Guanhua Ni , Quangui Li , Yangfeng Zheng
来源:[J].Arabian Journal for Science and Engineering, 2017, Vol.42 (9), pp.3839-3847
摘要:In this paper, a series of experiments were conducted to reveal differences in pore connectivity between different ranks of coal, as well as their variations under the coupled effects of water and heat. The results demonstrated that the pore connectivity of coal undergoes three s...
作者:Quangui Li , Yanqing Wu ...
来源:[J].Fuel(IF 3.357), 2020, Vol.265
摘要:Abstract(#br)Hydraulic fracturing is an effective method to improve the permeability of coal seams and enhance extraction of coalbed methane (CBM). Evolution of cracks in coal seam becomes increasingly complex when one borehole is drilled through multiple coal seams. In this work...
作者:... Weide Wang , Yankun Ma , Quangui Li
来源:[J].Journal of Natural Gas Science and Engineering, 2017
摘要:Abstract(#br)With the increasing consumption of conventional oil and gas reservoirs for gas recovery/production, unconventional reservoirs, such as coalbed methane, shale gas, and gas hydrate, have become very popular in recent times. In this regard, hydraulic fracturing is an ef...
作者:Quangui Li , Shiliang Wu
来源:[J].Journal of Natural Gas Science and Engineering, 2015, Vol.25, pp.15-22
摘要:Abstract(#br)Pulse hydraulic fracturing (PHF) technology can effectively improve reservoir permeability for coal bed methane (CBM) extraction. In this work, laboratory experiments were conducted to study the laws regarding pulsating water pressure (PWP) propagation during PHF in ...
作者:Quangui Li , Ting Liu
来源:[J].Journal of Natural Gas Science and Engineering, 2016
摘要:Abstract(#br)Chinese coal seams are characterized by high gas content and low permeability. The permeability of coal seams should be improved to achieve maximum extraction of coalbed methane. Hydraulic slotting has been extensively used in China for underground enhanced coalbed m...
作者:Quangui Li , Baiquan Lin , Cheng Zhai
来源:[J].Natural Hazards(IF 1.639), 2015, Vol.75 (3), pp.2931-2946
摘要:Abstract(#br)Coal and gas outburst is one of the main gas hazards in coal mines, and pulse hydraulic fracturing is a new technique for preventing and controlling gas hazards in coal mines and is presented based on conventional hydraulic fracturing. S2107 is a coal seam with ...
作者:Quangui Li , Baiquan Lin , Cheng Zhai
来源:[J].Journal of Natural Gas Science and Engineering, 2014, Vol.21, pp.296-303
摘要:Abstract(#br)Pulse hydraulic fracturing (PHF) is a new stimulation technique to enhance effectively permeability of coal seams, increasing the efficiency of gas extraction. However, the mechanism of PHF is still unclear, especially the effects of the key parameters. In this ...
作者:Quangui Li , Qianting Hu ...
来源:[J].Energy Science & Engineering, 2019, Vol.7 (3), pp.986-999
摘要:Abstract Hydraulic fracturing can evidently improve the coalbed methane production in underground coal mines, but it is difficult to delimit the stimulated area accurately. In order to evaluate the stimulated area, microseismic (MS) monitoring technique is proposed to invest...
作者:Quangui Li , Baiquan Lin ...
来源:[J].International Journal of Mining Science and Technology, 2013, Vol.23 (6), pp.847-853
摘要:Abstract(#br)Variable frequency, a new pattern of pulse hydraulic fracturing, is presented for improving permeability in coal seam. A variable frequency pulse hydraulic fracturing testing system was built, the mould with triaxial loading was developed. Based on the monitor method...
作者:Quangui Li , Shen Peng
来源:[J].International Journal of Mining Science and Technology, 2014, Vol.24 (5), pp.631-636
摘要:Abstract(#br)In order to understand the kinetic characteristics of coal gas desorption based on the pulsating injection (PI), the research experimentally studied the kinetic process of methane desorption in terms of the PI and hydrostatic injection (HI). The results show tha...

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