Effects of pulse wave on the variation of coal pore structure in pulsating hydraulic fracturing process of coal seam
作者: Xie JingnaXie JunNi GuanhuaSheik RahmanSun QianWang Hui
作者单位: 1State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China
2College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China
3School of Minerals and Energy Resources Engineering, University of New South Wales, Sydney, NSW 2052, Australia
刊名: Fuel, 2020, Vol.264
来源数据库: Elsevier Journal
DOI: 10.1016/j.fuel.2019.116906
关键词: Pulsating hydraulic fracturingCoal pore structurePulse waveGas desorption
原始语种摘要: Abstract(#br)Coal pore structure is not only closely related to gas adsorption, but also affect the dynamic characteristics of gas desorption and diffusion. In order to understand the influence of pulsating hydraulic fracturing on the variation of coal pore structure, in this paper, the mercury intrusion method and liquid nitrogen adsorption method were used to quantitatively analyze the changes of coal porosity and pore size distribution under the action of pulse wave. And combined with scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) test to study the variation of minerals on the surface of coal samples. The results show that the influence of pulsating load on coal porosity is greater than that of static pressure load. The cumulative volume of micropores and...
全文获取路径: Elsevier  (合作)
影响因子:3.357 (2012)

  • hydraulic 水力的
  • variation 变异
  • fracturing 断裂酌
  • pulsating 搏动的
  • structure 构造
  • pulse 脉冲
  • desorption 解吸
  • process 过程