(19)

(11)

EP 2 564 015 A1

(12)

(43) Date of publication: 06.03.2013 Bulletin 2013/10 (21) Application number: 10850888.8 (22) Date of filing: 30.04.2010

(51) International Patent Classification (IPC):  E21B 19/16(2006.01) E21B 19/06(2006.01) (86) International application number: PCT/US2010/033222 (87) International publication number: WO 2011/136801 (03.11.2011 Gazette 2011/44)

(84) Designated Contracting States: 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 SE SI SK SM TR (71) Applicant: Frank's International, Inc. Houston, TX 77042 (US)	(72) Inventors: ANGELLE, Jeremy, Richard Lafayette LA 70508 (US) MOSING, Donald, E. Lafayette LA 70503 (US) THIBODEAUX, Robert Lafayette LA 70508 (US) LAFLEUR, Blaine, Stephen Sunset LA 70584 (US) STELLY, John, Erick Breaux Bridge LA 70517 (US) (74) Representative: Osha Liang SARL  32, avenue de l'Opéra 75002 Paris 75002 Paris (FR)