DocumentCode :
3671029
Title :
Study of rock fracturing generated by pulsed discharging under confining pressure
Author :
Yaohong Sun;Rongyao Fu;Ailong Fan;Yinghui Gao;Ping Yan
Author_Institution :
Institute of Electrical Engineering, Chinese Academy of Sciences Beijing, 100190, China
fYear :
2015
fDate :
5/1/2015 12:00:00 AM
Firstpage :
1
Lastpage :
4
Abstract :
Some experimental results were obtained on rock fracturing without the confining pressure by using pulsed power technology. To study the effects of the stratum pressure on rock fracturing, a stratum pressure simulator with maximum pressure up to 35 MPa were development which can simulate the underground pressure of 3000 m depths. The rock samples were exploited from the sandstone mines and manufactured to a cubic block with a size of 0.4 m × 0.4 m × 0.4 m, a vertical borehole with a diameter of 0.05 m and a depth of 0.2 m was drilled in the center. Initial experimental results shown that more electric pulses are needed to generate the distinct fracture at the confining pressure, the height of crack is decreased with the increment of the confining pressure.
Keywords :
"Rocks","Discharges (electric)","Power systems","Conferences","Energy storage","Electrodes","Capacitance"
Publisher :
ieee
Conference_Titel :
Pulsed Power Conference (PPC), 2015 IEEE
ISSN :
2158-4915
Electronic_ISBN :
2158-4923
Type :
conf
DOI :
10.1109/PPC.2015.7296927
Filename :
7296927
Link To Document :
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