(19)

(11)

EP 2 368 010 A1

(12)

(43) Date of publication: 28.09.2011 Bulletin 2011/39 (21) Application number: 09830631.9 (22) Date of filing: 03.12.2009

(51) International Patent Classification (IPC):  E21B 33/12(2006.01) (86) International application number: PCT/NO2009/000416 (87) International publication number: WO 2010/064925 (10.06.2010 Gazette 2010/23)

(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: 05.12.2008 NO 20085082 (71) Applicant: Completion Technology Resources 4067 Stavanger (NO)	(72) Inventor: UELAND, Geir N-4050 Sola (NO) (74) Representative: Håmsø, Gunnar  Håmsø Patentbyrå ANS P.O. Box 171 4302 Sandnes 4302 Sandnes (NO)