EP 3259434 B1 20200902 - "TWIN-TUBE DRILL ROD SECTION, TWIN-TUBE DRILL ROD LENGTH AND METHOD FOR FORMING AN ELECTRICALLY CONDUCTIVE CONNECTION IN A TWIN-TUBE DRILL ROD SECTION"
Title (en)
"TWIN-TUBE DRILL ROD SECTION, TWIN-TUBE DRILL ROD LENGTH AND METHOD FOR FORMING AN ELECTRICALLY CONDUCTIVE CONNECTION IN A TWIN-TUBE DRILL ROD SECTION"
Title (de)
"DOPPELROHRGESTÄNGEABSCHNITT, DOPPELROHRGESTÄNGESCHUSS UND VERFAHREN ZUM AUSBILDEN EINER ELEKTRISCH LEITFÄHIGEN VERBINDUNG IN EINEM DOPPELROHRGESTÄNGEABSCHNITT"
Title (fr)
PORTION DE TIGE DE FORAGE DOUBLE, TRONÇON DE TIGE DE FORAGE DOUBLE ET PROCÉDÉ POUR FORMER UNE LIAISON ÉLECTRIQUEMENT CONDUCTRICE DANS UNE PORTION DE TIGE DE FORAGE DOUBLE
Publication
Application
Priority
- DE 102015001969 A 20150219
- EP 2016000253 W 20160215
Abstract (en)
[origin: WO2016131533A1] Twin-tube drill rod section (6) with an outer drill rod section (1) and an inner drill rod section (2), wherein the inner drill rod section has at least one conductor (8), wherein the inner drill rod section has a substantially annular outer contact (10) for forming an electrical connection of the conductor and, in the annular space (4) between the outer drill rod section and the inner drill rod section, a collector (13) is in contact with the annular outer contact of the inner drill rod section.
IPC 8 full level
E21B 7/04 (2006.01); E21B 7/06 (2006.01); H01R 39/64 (2006.01)
CPC (source: EP US)
E21B 7/046 (2013.01 - EP US); E21B 7/062 (2013.01 - EP US); E21B 17/003 (2013.01 - US); E21B 17/028 (2013.01 - EP US); E21B 17/18 (2013.01 - US); H01R 39/64 (2013.01 - EP 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)
DE 102015001969 A1 20160825; AU 2016222080 A1 20170928; AU 2016222080 B2 20190314; EP 3259434 A1 20171227; EP 3259434 B1 20200902; JP 2018508675 A 20180329; JP 6552627 B2 20190731; US 10745977 B2 20200818; US 2018038170 A1 20180208; WO 2016131533 A1 20160825
DOCDB simple family (application)
DE 102015001969 A 20150219; AU 2016222080 A 20160215; EP 16707627 A 20160215; EP 2016000253 W 20160215; JP 2017543905 A 20160215; US 201615552046 A 20160215