(19)
(11) EP 2 118 433 A1

(12)

(43) Date of publication:
18.11.2009 Bulletin 2009/47

(21) Application number: 08709663.2

(22) Date of filing: 29.02.2008
(51) International Patent Classification (IPC): 
E21B 19/16(2006.01)
(86) International application number:
PCT/GB2008/050143
(87) International publication number:
WO 2008/107712 (12.09.2008 Gazette 2008/37)
(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 MT NL NO PL PT RO SE SI SK TR

(30) Priority: 07.03.2007 US 905475 P
25.02.2008 US 72296

(71) Applicant: National Oilwell Varco, L.P.
Houston, TX 77036 (US)

(72) Inventors:
  • WEBB, Jonathan, Garrick
    N-4623 Kristiansand (NO)
  • PEDERSEN, Jan, Erik
    N-4638 Kristiansand (NO)
  • BERGE, Roar
    N-4635 Kristiansand (NO)

(74) Representative: Lucas, Brian Ronald 
Lucas & Co. 135 Westhall Road
Warlingham Surrey CR6 9HJ
Warlingham Surrey CR6 9HJ (GB)

   


(54) SPINNER APPARATUS