EP 2505762 B1 20180214 - Drilling device and method for horizontal drilling
Title (en)
Drilling device and method for horizontal drilling
Title (de)
Bohrvorrichtung und Verfahren zum Horizontalbohren
Title (fr)
Dispositif de forage et procédé de forage horizontal
Publication
Application
Priority
- EP 11002635 A 20110330
- EP 12001285 A 20120227
Abstract (en)
[origin: EP2505762A2] The drilling device (10) comprises a drilling head (20) and a drilling rod (30), on whose borehole- sided end, the drilling head is arranged. An inner rod (32) is provided, which is driven by a rotary drive (62) in a rotating manner, where an outer rod (34) is driven by another rotary drive (64). A control device is provided, by which the former and latter rotary drives are controlled and are adjusted independent to each other. A marking unit is arranged on an end of a drilling rod unit of the inner rod or the outer rod that is averted from the drilling head. An independent claim is included for a method for creating a horizontal drill hole with a drilling device.
IPC 8 full level
CPC (source: EP)
E21B 7/002 (2013.01); E21B 7/046 (2013.01)
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 2505762 A2 20121003; EP 2505762 A3 20170222; EP 2505762 B1 20180214; DK 2505762 T3 20180528; NO 2505762 T3 20180714
DOCDB simple family (application)
EP 12001285 A 20120227; DK 12001285 T 20120227; NO 12001285 A 20120227