EP 2318642 A1 20110511 - METHOD AND APPARATUS FOR MAKING UP AND BREAKING OUT THREADED TUBULAR CONNECTIONS
Title (en)
METHOD AND APPARATUS FOR MAKING UP AND BREAKING OUT THREADED TUBULAR CONNECTIONS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG UND TRENNUNG VON GEWINDEROHRVERBINDUNGEN
Title (fr)
PROCÉDÉ ET APPAREIL DE RÉALISATION ET DE RUPTURE DE RACCORDS TUBULAIRES FILETÉS
Publication
Application
Priority
- US 2009049405 W 20090701
- US 7721008 P 20080701
Abstract (en)
[origin: WO2010002992A1] An internally gripping tong to rotate tubular segments comprising a central cam body rotatably disposed within a housing having a plurality of windows. The cam body is surrounded by a plurality of angularly distributed gripping jaws slidably received within the windows. The tong is disposed within a bore of a tubular segment, and rotation of the housing relative to the cam body deploys the gripping jaws radially outwardly within the windows to engage the interior wall of the tubular segment. The tong may be self-energizing in both the make-up and the break¬ out modes of operation. The tong may be deployed to grip the tubular segment using a device to frictionally couple the housing to the tubular segment that cooperates with the top drive assembly, or by an internal actuator that imparts rotation to the housing relative to the cam body.
IPC 8 full level
E21B 19/00 (2006.01); E21B 19/06 (2006.01); E21B 19/16 (2006.01)
CPC (source: EP)
E21B 19/00 (2013.01); E21B 19/06 (2013.01); E21B 19/16 (2013.01)
Citation (search report)
See references of WO 2010002992A1
Designated contracting state (EPC)
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 SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DOCDB simple family (application)
US 2009049405 W 20090701; EP 09774442 A 20090701