EP 2870316 B1 20191120 - APPARATUSES AND METHODS FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL
Title (en)
APPARATUSES AND METHODS FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL
Title (de)
VORRICHTUNGEN UND VERFAHREN ZUR STROMVERSORGUNG EINES ELEKTROZERKLEINERUNGSBOHRERS
Title (fr)
APPAREILS ET PROCÉDÉS D'ALIMENTATION EN ÉLECTRICITÉ DE TRÉPAN D'ÉLECTROCONCASSAGE
Publication
Application
Priority
- US 201261668304 P 20120705
- US 201261738837 P 20121218
- US 201261739172 P 20121219
- US 2013049466 W 20130705
Abstract (en)
[origin: US2014008968A1] Methods and apparatuses for directly charging capacitors in a down-hole pulsed power system used for electrocrushing drilling. An above ground power supply is directly connected to the capacitors. The power supply can be a switching power supply, a DC supply, or an AC supply. Capacitor voltage is monitored and controlled. The system reduces noise caused by coupling control signal cables and the power cable, and does not have the ground swing control problems of other charging schemes. The power may alternatively be provided by microwave transmission.
IPC 8 full level
E21B 7/15 (2006.01); E21B 17/00 (2006.01)
CPC (source: EP US)
E21B 7/15 (2013.01 - EP US); E21B 17/003 (2013.01 - EP US); E21B 41/0085 (2013.01 - EP)
Citation (examination)
- US 2009050371 A1 20090226 - MOENY WILLIAM M [US]
- US 2006243486 A1 20061102 - MOENY WILLIAM M [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2014008968 A1 20140109; AU 2013286589 A1 20150226; BR 112015000141 A2 20170627; BR 112015000141 B1 20220614; CA 2877788 A1 20140109; EP 2870316 A1 20150513; EP 2870316 A4 20160525; EP 2870316 B1 20191120; EP 3508683 A1 20190710; EP 3508683 B1 20201111; EP 3656970 A1 20200527; EP 3656970 B1 20220406; WO 2014008483 A1 20140109; ZA 201500803 B 20160330
DOCDB simple family (application)
US 201313935995 A 20130705; AU 2013286589 A 20130705; BR 112015000141 A 20130705; CA 2877788 A 20130705; EP 13812863 A 20130705; EP 19157771 A 20130705; EP 20151105 A 20130705; US 2013049466 W 20130705; ZA 201500803 A 20150204