(19)

(11)

EP 3 286 404 A1

(12)

(43) Date of publication: 28.02.2018 Bulletin 2018/09 (21) Application number: 16783561.0 (22) Date of filing: 31.03.2016

(51) International Patent Classification (IPC):  E21B 19/02(2006.01) E21B 41/00(2006.01) E21B 19/06(2006.01) (86) International application number: PCT/US2016/025108 (87) International publication number: WO 2016/171858 (27.10.2016 Gazette 2016/43)

(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: 21.04.2015 US 201514692493 (71) Applicant: Frank's International, LLC Houston, TX 77042 (US)	(72) Inventors: ANGELLE, Jeremy, Richard Youngsville, LA 70592 (US) THIBODEAUX, Robert, Jr. Lafayette, LA 70508 (US) STELLY, John, Erick Breaux Bridge, LA 70517 (US) (74) Representative: Haseltine Lake LLP  Lincoln House, 5th Floor 300 High Holborn London WC1V 7JH London WC1V 7JH (GB)