(19)

(11)

EP 2 751 380 A1

(12)

(43) Date of publication: 09.07.2014 Bulletin 2014/28 (21) Application number: 12834069.2 (22) Date of filing: 20.09.2012

(51) International Patent Classification (IPC):  E21B 25/16(2006.01) E21B 31/18(2006.01) E21B 47/00(2012.01) (86) International application number: PCT/AU2012/001132 (87) International publication number: WO 2013/040641 (28.03.2013 Gazette 2013/13)

(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: 20.09.2011 AU 2011903859 (71) Applicant: Imdex Global B.V. 1101 CM Amsterdam (NL)	(72) Inventors: BROWN, Kelvin Sorrento, Western Australia 6020 (AU) JABBAL, Guru Tapping, Western Australia 6056 (AU) TRANT, Dominic Ridgewood, Uckfeld Sussex TN22 5TD (GB) GERASIMOFF, Michael Tuart Hill, Western Australia 6060 (AU) (74) Representative: Lloyd, Robin et al Kilburn & Strode LLP 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)