EP 2495389 B1 20140507 - Drilling rod
Title (en)
Drilling rod
Title (de)
Bohrgestänge
Title (fr)
Tiges de forage
Publication
Application
Priority
EP 11001832 A 20110304
Abstract (en)
[origin: EP2495389A1] The rod has rod elements provided with energy- and/or data lines connected with an inner induction coil (100) and an outer induction coil. The induction coils are inductively coupled with each other for transfer of data e.g. pressure value, along the rod. The inner induction coil is provided at external circumference of an inner pipe. The outer induction coil is provided at internal circumference of an outer pipe. The induction coils are formed of ring segment parts and overlap in sections along radial direction. The inner pipe is designed as one of rinsing pipe, concrete pipe and double pipe.
IPC 8 full level
E21B 17/02 (2006.01); E21B 47/12 (2012.01); F16L 25/01 (2006.01)
CPC (source: BR EP KR US)
E21B 17/02 (2013.01 - BR); E21B 17/028 (2013.01 - BR EP KR US); E21B 17/04 (2013.01 - BR); E21B 17/043 (2013.01 - BR KR); E21B 47/13 (2020.05 - EP KR 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)
EP 2495389 A1 20120905; EP 2495389 B1 20140507; BR 102012004818 A2 20140211; BR 102012004818 B1 20201229; CA 2766797 A1 20120904; CA 2766797 C 20140826; CN 102654034 A 20120905; CN 102654034 B 20150715; ES 2470769 T3 20140624; HK 1169692 A1 20130201; JP 2012184648 A 20120927; JP 5226885 B2 20130703; KR 101388184 B1 20140423; KR 20120100798 A 20120912; RU 2012103758 A 20130820; RU 2507395 C2 20140220; US 2012222858 A1 20120906; US 8794314 B2 20140805
DOCDB simple family (application)
EP 11001832 A 20110304; BR 102012004818 A 20120302; CA 2766797 A 20120131; CN 201210052955 A 20120302; ES 11001832 T 20110304; HK 12110285 A 20121017; JP 2012041106 A 20120228; KR 20120021735 A 20120302; RU 2012103758 A 20120206; US 201213412424 A 20120305