EP 0450676 A1 19911009 - Equipment for remote launching of cementing plugs into subsea drilled wells.
Title (en)
Equipment for remote launching of cementing plugs into subsea drilled wells.
Title (de)
Fernbediente Auslösevorrichtung für Zementstopfen in Unterwasserbohrlöcher.
Title (fr)
Système à commande à distance pour lancer des bouchons de cimentation pour puits sousmarins.
Publication
Application
Priority
FR 9003129 A 19900307
Abstract (en)
Oil well equipment. The equipment includes: a launch tube (30) partly communicating with the internal casing and extending downward from the installation tool, a basket (31) secured at the launch tube bottom part, with a cross section smaller than that of the internal casing, open at its bottom end and containing at least one plug (33) with peripheral lips (35), a launching device, internally slidable in the launch tube and including an axial push rod (38) cooperating with the plug and a piston (37) integral with the plug, axially kept stationary in the tube by a limited strength stopping means (40). Application for off-shore drilling. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 33/05 (2006.01)
CPC (source: EP)
E21B 33/05 (2013.01); E21B 33/165 (2020.05)
Citation (search report)
[AP] EP 0377255 B1 19940119 - PUMPTECH NV [BE], et al
Designated contracting state (EPC)
DE DK FR GB IT NL
DOCDB simple family (publication)
EP 0450676 A1 19911009; EP 0450676 B1 19950607; CA 2037681 A1 19910908; CA 2037681 C 20010904; CN 1026351 C 19941026; CN 1054644 A 19910918; CN 1054824 A 19910925; DE 69110174 D1 19950713; DE 69110174 T2 19960201; FR 2659386 A1 19910913; FR 2659386 B1 19920626; NO 301658 B1 19971124; NO 910884 D0 19910306; NO 910884 L 19910909; SA 91110354 B1 20040904
DOCDB simple family (application)
EP 91200447 A 19910302; CA 2037681 A 19910306; CN 91101384 A 19910307; CN 91102672 A 19910429; DE 69110174 T 19910302; FR 9003129 A 19900307; NO 910884 A 19910306; SA 91110354 A 19910514