(19)

(11)

EP 2 212 516 A2

(12)

(88) Date of publication A3: 01.07.2010 (43) Date of publication: 04.08.2010 Bulletin 2010/31 (21) Application number: 08840081.7 (22) Date of filing: 16.10.2008

(51) International Patent Classification (IPC):  E21B 43/00(2006.01) (86) International application number: PCT/US2008/011926 (87) International publication number: WO 2009/051834 (23.04.2009 Gazette 2009/17)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 16.10.2007 US 980443 P 13.02.2008 US 28386 (71) Applicant: Foret Plasma Labs, LLC The Woodlands TX 77380 (US)	(72) Inventor: FORET, Todd Lafayette LA 70508 (US) (74) Representative: Sonn, Helmut  Sonn & Partner Patentanwälte Riemergasse 14 1010 Wien 1010 Wien (AT)