(19)

(11)

EP 2 318 642 A1

(12)

(43) Date of publication: 11.05.2011 Bulletin 2011/19 (21) Application number: 09774442.9 (22) Date of filing: 01.07.2009

(51) International Patent Classification (IPC):  E21B 19/00(2006.01) E21B 19/16(2006.01) E21B 19/06(2006.01) (86) International application number: PCT/US2009/049405 (87) International publication number: WO 2010/002992 (07.01.2010 Gazette 2010/01)

(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 Designated Extension States: AL BA RS (30) Priority: 01.07.2008 US 77210 (71) Applicant: Frank's International, Inc. Houston, TX 77042 (US)	(72) Inventors: WEBRE, Charles, M. Lafayette LA 70508 (US) DOMEC, Brennan, Scott Lafayette LA 70506 (US) BOULIGNY, Vernon, J. New Iberia LA 70560 (US) (74) Representative: Dowling, Andrew  Haseltine Lake LLP Lincoln House, 5th Floor 300 High Holborn GB-London WC1V 7JH GB-London WC1V 7JH (GB)