METHODS TO REPAIR WORN OR ERODED PDC CUTTERS, CUTTERS SO REPAIRED, AND USE OF REPAIRED PDC CUTTERS IN DRILL BITS OR OTHER TOOLS - Patent 3087245

(19)

(11)

EP 3 087 245 A1

(12)

(43)	Date of publication:
	02.11.2016 Bulletin 2016/44

(21)	Application number: 14873434.6

(22)	Date of filing: 17.12.2014

(51)

International Patent Classification (IPC):

E21B 10/46^(2006.01)

(86)	International application number:
	PCT/US2014/070952

(87)	International publication number:
	WO 2015/100110 (02.07.2015 Gazette 2015/26)

(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

(30)

Priority:

23.12.2013 US 201314139302

(71)	Applicant: Varel International, Ind., L.P.
	Carrollton, TX 75006 (US)

(72)	Inventors:
	KING, William W. Houston, TX 77069 (US) THIGPEN, Gary M. Houston, TX 77094 (US) BELLLIN, Federico Tomball, TX 77375 (US) AMUNDSEN, Marvin Windsor Houston, TX 77095 (US) JOHNSON, Charles Daniel Porter, TX 77365 (US)

(74)	Representative: Neilson, Martin Mark
	Urquhart-Dykes & Lord LLP Tower North Central Merrion Way Leeds LS2 8PA Leeds LS2 8PA (GB)

(54)	METHODS TO REPAIR WORN OR ERODED PDC CUTTERS, CUTTERS SO REPAIRED, AND USE OF REPAIRED PDC CUTTERS IN DRILL BITS OR OTHER TOOLS