(19)

(11)

EP 3 221 554 A1

(12)

(43) Date of publication: 27.09.2017 Bulletin 2017/39 (21) Application number: 15797112.8 (22) Date of filing: 19.11.2015

(51) International Patent Classification (IPC):  E21B 44/00(2006.01) G06F 9/00(2006.01) (86) International application number: PCT/EP2015/077103 (87) International publication number: WO 2016/079238 (26.05.2016 Gazette 2016/21)

(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 Designated Validation States: MA MD (30) Priority: 20.11.2014 EP 14193994 (71) Applicant: Sandvik Mining and Construction Oy 33330 Tampere (FI)	(72) Inventors: HUIKKOLA, Miika FI-33330 Tampere (FI) PIRINEN, Tuomo FI-33330 Tampere (FI) PUURA, Jussi FI-33330 Tampere (FI) UITTO, Vesa FI-33330 Tampere (FI)