(19)

(11)

EP 2 935 769 A1

(12)

(43) Date of publication: 28.10.2015 Bulletin 2015/44 (21) Application number: 13828788.3 (22) Date of filing: 18.12.2013

(51) International Patent Classification (IPC):  E21B 43/16(2006.01) C09K 8/592(2006.01) E21B 43/24(2006.01) F25J 3/04(2006.01) C09K 8/594(2006.01) (86) International application number: PCT/EP2013/077133 (87) International publication number: WO 2014/096030 (26.06.2014 Gazette 2014/26)

(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: 19.12.2012 EP 12198225 (71) Applicant: MÆRSK OLIE OG GAS A/S 1263 Copenhagen K (DK)	(72) Inventors: McGUIRE, Patrick Lee DK-1263 København K (DK) MOGENSEN, Kristian DK-1263 København K (DK) (74) Representative: Zacco Denmark A/S  Arne Jacobsens Allé 15 2300 Copenhagen S 2300 Copenhagen S (DK)