煤矿安全2017，Vol.48Issue(6)：24-27,4.DOI:10.13347/j.cnki.mkaq.2017.06.007
CO2致裂器深孔预裂煤体裂隙扩展范围试验研究
Experimental Study on Fracture Extension Range of Deep Hole Pre-splitting Coal Body by Carbon Dioxide Fracturing Device
摘要
Abstract
In order to obtain the influence radius of deep-hole pre-eraeking by tandem type commection of carbon dioxide fracturing devices,two groups of experiments were carried out in No.3 coal seam of a coal mine in Shanxi province to study the influence radius under two different working conditions of extraction area and non-extraction area,and combined with the theoretical calculation,the results were analyzed.The results show that the influence radius is about 5 m when the drilling depth is 100 m through tandem type eommection of carbon dioxide fracturing devices.It provides a strong technical support for the fracturing and perme ability improvement design and field construction.关键词
CO2致裂器/深孔预裂/瓦斯抽采/裂隙扩展范围/影响半径Key words
CO2 fracturing device/deep hole pre-cracking/gas drainage/fracture expanding range/influence radius分类
矿业与冶金引用本文复制引用
王子雷..CO2致裂器深孔预裂煤体裂隙扩展范围试验研究[J].煤矿安全,2017,48(6):24-27,4.基金项目
天地科技“科技创新基金”面上资助项目(KJ-2016-BJZM-09) （KJ-2016-BJZM-09）
