EP 2126269 A1 20091202 - TOP DRIVE APPARATUS
Title (en)
TOP DRIVE APPARATUS
Title (de)
OBERE ANTRIEBSVORRICHTUNG
Title (fr)
APPAREIL À SYSTÈME D'ENTRAÎNEMENT EN SURFACE
Publication
Application
Priority
- GB 2008050112 W 20080220
- US 90279807 P 20070222
- US 1261608 A 20080204
Abstract (en)
[origin: WO2008102175A1] A method and apparatus for tra nsf erring fluid from a rotor (140) of a top drive apparatus to a non-rotating conduit, (101, 102) such as a gooseneck, the rotor (140) rotating at a working speed, characterised in that a seal (109) is arranged between said rotor (140) and a speed reducer apparatus (160) and a further seal (107) arranged between the speed reducer apparatus (160) a nd the non-rotating conduit (101, 102), the method comprising the step of the speed reducer apparatus (160) rotating at a speed slower than the working speed, such that the seal (109) and further, seal (107) each rotate at slower speed than the working speed.
IPC 8 full level
E21B 3/02 (2006.01)
CPC (source: EP US)
E21B 3/022 (2020.05 - EP); E21B 21/02 (2013.01 - EP US); E21B 33/02 (2013.01 - EP US)
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 MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008102175 A1 20080828; CA 2678686 A1 20080828; EP 2126269 A1 20091202; US 2008230274 A1 20080925
DOCDB simple family (application)
GB 2008050112 W 20080220; CA 2678686 A 20080220; EP 08709632 A 20080220; US 1261608 A 20080204