EP 0453076 A1 19911023 - Plasma blasting method.
Title (en)
Plasma blasting method.
Title (de)
Plasmasprengverfahren.
Title (fr)
Méthode de tirage au plasma.
Publication
Application
Priority
CA 2015102 A 19900420
Abstract (en)
A blasting method which comprises delivering electrical energy at a rate of at least 100 megawatts per microsecond until a peak power of at least 3 gigawatts is reached across the gap of two poles of a coaxial electrode assembly immersed in an electrolyte within a confined area of a substance to be blasted. A dielectric break-down of the electrolyte in the confined area is produced resulting in the formation of plasma within the confined area which creates a pressure sufficient to blast the substance in the manner of a high explosive charge.
IPC 1-7
IPC 8 full level
E21B 7/15 (2006.01); E21C 37/18 (2006.01)
CPC (source: EP)
E21B 7/15 (2013.01); E21C 37/18 (2013.01)
Citation (search report)
- [AD] US 3158207 A 19641124 - ROWLEY DAVID S
- [AD] US 3583766 A 19710608 - PADBERG LOUIS R JR
- [AD] US 3679007 A 19720725 - O'HARE LOUIS RICHARD
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0453076 A1 19911023; EP 0453076 B1 19950607; AT E123554 T1 19950615; AU 627984 B2 19920903; AU 7020891 A 19911024; CA 2015102 A1 19911020; CA 2015102 C 19950919; DE 69110186 D1 19950713; DE 69110186 T2 19951214; FI 911900 A0 19910419; FI 911900 A 19911021
DOCDB simple family (application)
EP 91301810 A 19910305; AT 91301810 T 19910305; AU 7020891 A 19910204; CA 2015102 A 19900420; DE 69110186 T 19910305; FI 911900 A 19910419