Application of ultra-high pressure hydraulic slotting technology in medium hardness and low permeability coal seam

In order to improve the gas pre-drainage efficiency of medium hard coal seam with high gas and low permeability, the applicable conditions, advantages and disadvantages of hydraulic piercing, hydraulic fracturing and hydraulic cutting seam anti-permeability technology were discussed. Based on the pr...

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Bibliographic Details

Published in:	Meitan kexue jishu
Main Authors:	Yongzhi TANG, Ping LI, Guiwang ZHU, Jian CHEN, Dezhong CHEN, Anxiang FENG, Zhihua TANG, Yang YANG, Min YE
Format:	Article
Language:	Chinese
Published:	Editorial Department of Coal Science and Technology 2022-12-01
Subjects:	low permeability coal seam medium hard coal seam ultra high pressure hydraulic slotting hydraulic punching extraction effect
Online Access:	http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.mcq22-12