EP 1042582 B1 20021204 - WEIGHT COMPENSATION DEVICE
Title (en)
WEIGHT COMPENSATION DEVICE
Title (de)
ANORDNUNG ZUM GEWICHTSAUSGLEICH
Title (fr)
DISPOSITIF DE COMPENSATION DE POIDS
Publication
Application
Priority
- EP 9808580 W 19981228
- US 99815297 A 19971224
- US 99846197 A 19971226
Abstract (en)
[origin: WO9934088A1] An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (12, 13, 12', 13') which can be suspended from a travelling block (TB) or a top drive (TD) or a swivel, characterised in that said apparatus further comprises a member (11) which can support a primary elevator (31) and which can, in use, be raised and lowered by said weight compensating device (12, 13, 12', 13') to enable a tubular (JC) to be raised and lowered with respect to a string of tubulars (ST) and which can move to a load bearing position in which it can raise and lower said string of tubulars.
IPC 1-7
IPC 8 full level
E21B 19/06 (2006.01); E21B 19/086 (2006.01); E21B 19/16 (2006.01)
CPC (source: EP)
E21B 19/06 (2013.01); E21B 19/086 (2013.01); E21B 19/16 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 9934088 A1 19990708; AU 2615299 A 19990719; AU 741280 B2 20011129; CA 2316307 A1 19990708; CA 2316307 C 20070522; DE 69809966 D1 20030116; DE 69809966 T2 20030717; EP 1042582 A1 20001011; EP 1042582 B1 20021204; NO 20002455 D0 20000511; NO 20002455 L 20000809; NO 321865 B1 20060717
DOCDB simple family (application)
EP 9808580 W 19981228; AU 2615299 A 19981228; CA 2316307 A 19981228; DE 69809966 T 19981228; EP 98966927 A 19981228; NO 20002455 A 20000511