(19)
(11) EP 1 485 571 A1

(12)

(43) Date of publication:
15.12.2004 Bulletin 2004/51

(21) Application number: 03701952.8

(22) Date of filing: 03.02.2003
(51) International Patent Classification (IPC)7E21B 33/038, F16L 27/02
(86) International application number:
PCT/NO2003/000031
(87) International publication number:
WO 2003/064809 (07.08.2003 Gazette 2003/32)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 01.02.2002 NO 20020534
01.02.2002 US 60319

(71) Applicant: Smedvig Offshore AS
4001 Stavanger (NO)

(72) Inventor:
  • ANDERSEN, Jan, Oddvar
    N-4070 Randaberg (NO)

(74) Representative: Briddes, Sam 
Onsagers Ltdc/o Innovation Norway5 Lower Regent Street
London SW1Y 4LR
London SW1Y 4LR (GB)

   


(54) A TRIGGERING MECHANISM FOR DISCONNECTING A RISER FROM A RISER CONNECTOR