(19)
(11) EP 2 370 664 A1

(12)

(43) Date of publication:
05.10.2011 Bulletin 2011/40

(21) Application number: 09768559.8

(22) Date of filing: 25.11.2009
(51) International Patent Classification (IPC): 
E21B 34/08(2006.01)
E21B 43/12(2006.01)
(86) International application number:
PCT/NO2009/000406
(87) International publication number:
WO 2010/062187 (03.06.2010 Gazette 2010/22)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30) Priority: 26.11.2008 NO 20084969

(71) Applicant: Petroleum Technology Company AS
4032 Stavanger (NO)

(72) Inventors:
  • TVEITEN, Magnar
    N-4328 Sandnes (NO)
  • KLEPPA, Erling
    N-4100 Jørpeland (NO)
  • STOKKA, Øyvind
    N-4315 Sandnes (NO)
  • SEVHEIM, Ole
    N-4019 Stavanger (NO)

(74) Representative: Onsagers AS 
Universitetsgaten 7 P.O. Box 6963 St. Olavs plass
0130 Oslo
0130 Oslo (NO)

   


(54) BELLOWS VALVE