强激光与粒子束2018，Vol.30Issue(4)：125-129,5.DOI:10.11884/HPLPB201830.170347
大水泥岩样的电脉冲压裂实验研究
Experimental study of fracturing under electric pulse for large cement sample
摘要
Abstract
The electric pulse discharge experimental platform of 20 kV/40 kJ was set up and the impact fracture test of large cement sample was carried out.In order to simulate the actual working conditions,the discharge electrode was put into an insula-ted sleeve with perforation.While discharging in water,the directional impact pressure wave was produced in the rock sample, and the shock wave acted on the rock layer to produce cracks.The experimental results show that when the shock wave produced by the repeated electric pulse discharge acted on the big cement sample,it caused cracks on a certain scale,and the cracks on the rock sample surface are symmetrical.There was a certain energy loss when the shock wave moved through the insulating sleeve and part of the shock wave pressure was applied to the insulating sleeve,but the insulating sleeve did not deform during the dis-charging.The damage of electric pulse discharge on insulating sleeve is minimal.关键词
重复频率/脉冲放电/压裂/绝缘套管/冲击波Key words
repetition rate/pulsed discharge/fracture/insulating sleeve/shockwave分类
信息技术与安全科学引用本文复制引用
付荣耀,孙鹞鸿,刘坤,高迎慧,徐旭哲,严萍..大水泥岩样的电脉冲压裂实验研究[J].强激光与粒子束,2018,30(4):125-129,5.基金项目
国家自然科学基金项目(51577176) （51577176）
