(19)

(11)

EP 2 513 409 A2

(12)

(88) Date of publication A3: 20.10.2011 (43) Date of publication: 24.10.2012 Bulletin 2012/43 (21) Application number: 10798772.9 (22) Date of filing: 17.12.2010

(51) International Patent Classification (IPC):  E21B 19/00(2006.01) E21B 19/14(2006.01) (86) International application number: PCT/EP2010/070020 (87) International publication number: WO 2011/083028 (14.07.2011 Gazette 2011/28)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 17.12.2009 NO 20093546 (71) Applicant: TTS Sense As 4623 Kristiansand (NO)	(72) Inventor: HOLEN, Dag Magnus N-4633 Kristiansand (NO) (74) Representative: Protector IP Consultants AS  Oscarsgate 20 0352 Oslo 0352 Oslo (NO)