9 Papers
16 Citations
Liwen Cao is an academic researcher from China University of Mining and Technology. The author has contributed to research in topics: Coal mining & Coal. The author has an hindex of 7, co-authored 9 publications.
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Papers
The adsorption-swelling and permeability characteristics of natural and reconstituted anthracite coals
Qinghe Niu,Qinghe Niu,Liwen Cao,Shuxun Sang,Shuxun Sang,Xiaozhi Zhou,Xiaozhi Zhou,Zhenzhi Wang,Zhiyong Wu +8 more
TL;DR: In this article, the authors investigated the adsorption capacity, swelling effect and permeability characteristic of coal seams with and without tectonic damage, the natural coal and reconstituted coal manufactured via simulating in situ geological conditions were investigated.
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Study on the anisotropic permeability in different rank coals under influences of supercritical CO2 adsorption and effective stress and its enlightenment for CO2 enhance coalbed methane recovery
Qinghe Niu,Liwen Cao,Shuxun Sang,Xiaozhi Zhou,Wei Wang,Wei Yuan,Zhongmin Ji,Haichao Wang,Yan Nie +8 more
TL;DR: In this paper, the authors show that prefracturing can dramatically decrease the IPLRi, stress sensitivity coefficient and PALR of coal seams, which may be the potential and effective measure to enhence the injectivity of CO2 in coal seams.
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Experimental study of permeability changes and its influencing factors with CO2 injection in coal
TL;DR: In this paper, a series of corresponding coal permeability tests were conducted under different adsorption pressures (2 − 10 MPa), moisture states (dry and wet), temperatures (35 − 65 °C), coal ranks (Ro,max = 0.68% − 3.33%), effective stresses (3 − 10MPa).
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Study on the fracture characteristics of thick-hard limestone roof and its controlling technique
TL;DR: Wang et al. as mentioned in this paper conducted an experimental study on physical and mechanical properties of No.15 coal seam and its floor as well as roof, and also have an underground measurement on roof fracture width and floor loose range of headgate.
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An experimental study on the damage characteristics of mechanical properties of anthracite induced by supercritical CO2 injection
TL;DR: In this paper, the effect of ScCO2 adsorption and pore pressure on the mechanical properties of coal seams was investigated by using a scanning electron microscope to analyze the micro-damage of anthracite.
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