EP 2085566 B1 20110914 - Drilling assembly
Title (en)
Drilling assembly
Title (de)
Bohranlage
Title (fr)
Installation de forage
Publication
Application
Priority
DE 102008003968 A 20080111
Abstract (en)
[origin: EP2085566A2] The assembly has a drive unit movably arranged in a drilling ramp, where the drive unit has a rod retainer (28) for detachably connecting the drive unit with a drilling rod. A hydraulic motor stands in connection with the rod retainer in a torque transmitting manner, and a casing retainer (32) is arranged co-axial to the rod retainer for detachably connecting the drive unit with a casing. A bayonet coupling with a tappet (46) and stop elements (74) is provided between the motor and the casing retainer for torque transmitting connection of the motor and the casing retainer.
IPC 8 full level
E21B 3/02 (2006.01); E21B 7/20 (2006.01); E21B 17/03 (2006.01); E21B 17/046 (2006.01)
CPC (source: EP US)
E21B 3/022 (2020.05 - EP US); E21B 4/14 (2013.01 - EP); E21B 7/20 (2013.01 - EP); E21B 17/03 (2013.01 - EP); E21B 17/046 (2013.01 - EP US)
Designated contracting state (EPC)
CH FR GB LI
DOCDB simple family (publication)
EP 2085566 A2 20090805; EP 2085566 A3 20090812; EP 2085566 B1 20110914; DE 102008003968 B3 20091224
DOCDB simple family (application)
EP 08173104 A 20081230; DE 102008003968 A 20080111