(19)

(11)

EP 3 004 937 A2

(12)

(88) Date of publication A3: 05.03.2015 (43) Date of publication: 13.04.2016 Bulletin 2016/15 (21) Application number: 14726393.3 (22) Date of filing: 27.05.2014

(51) International Patent Classification (IPC):  G01V 1/30(2006.01) G01V 1/42(2006.01) (86) International application number: PCT/EP2014/060988 (87) International publication number: WO 2014/191427 (04.12.2014 Gazette 2014/49)

(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 Designated Extension States: BA ME (30) Priority: 27.05.2013 WO PCT/EP2013/060848 (71) Applicant: Statoil Petroleum AS 4035 Stavanger (NO)	(72) Inventor: CARTER, Andrew James N-7014 Trondheim (NO) (74) Representative: Jackson, Robert Patrick  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)