EP 1242712 A1 20020925 - COMBINED POWER TONG HAVING INTEGRATED MUD SUCTION AND THREAD DOPING APPARATUS
Title (en)
COMBINED POWER TONG HAVING INTEGRATED MUD SUCTION AND THREAD DOPING APPARATUS
Title (de)
KOMBINIERTE KRAFTZANGE MIT INTEGRIERTER SPÜLUNGSSEKTION UND MIT GEWINDESCHMIEREINRICHTUNG
Title (fr)
CLE DE VISSAGE COMBINEE A COMMANDE PNEUMATIQUE COMPORTANT UN APPAREIL INTEGRE D'ASPIRATION DE LA BOUE ET DE DOPAGE DE FILET
Publication
Application
Priority
- NO 9900399 W 19991221
- NO 996017 A 19991207
Abstract (en)
[origin: WO0149968A1] A power tong (25) including a dividable spinner and torque tong (1) for spinning in and tightening of a first pipe (20) into a second pipe (21), and an underneath located dividable back up tong (10) for fixedly retaining the second pipe (21) is disclosed. The tongs (1, 10) are axially moveable towards and away from each other. A liquid lock (35) is provided between the spinner and torque tong (1) and the back up tong (10), and a suction for evacuation from the liquid lock (35) the liquid that drains from the pipe (20) during a disconnecting operation between the joints of the pipes (20, 21).
IPC 1-7
IPC 8 full level
E21B 19/16 (2006.01); E21B 21/01 (2006.01)
CPC (source: EP US)
E21B 19/164 (2013.01 - EP); E21B 21/01 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0149968 A1 20010712; AU 1899200 A 20010716; CA 2393752 A1 20010712; EA 003561 B1 20030626; EA 200200609 A1 20021226; EP 1242712 A1 20020925; NO 310527 B1 20010716; NO 996017 D0 19991207; NO 996017 L 20010608
DOCDB simple family (application)
NO 9900399 W 19991221; AU 1899200 A 19991221; CA 2393752 A 19991221; EA 200200609 A 19991221; EP 99962585 A 19991221; NO 996017 A 19991207