SHORT MATRIX DRILL BITS AND METHODOLOGIES FOR MANUFACTURING SHORT MATRIX DRILL BITS - Patent 3117065

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EP 3 117 065 A1

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(43)	Date of publication:
	18.01.2017 Bulletin 2017/03

(21)	Application number: 15789258.9

(22)	Date of filing: 11.03.2015

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International Patent Classification (IPC):

E21B 10/42^(2006.01)

(86)	International application number:
	PCT/US2015/019959

(87)	International publication number:
	WO 2015/171199 (12.11.2015 Gazette 2015/45)

(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

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Priority:

11.03.2014 US 201461951225 P

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

(72)	Inventors:
	THIGPEN, Gary Michael Houston, TX 77094 (US) BELLIN, Federico Tomball, TX 77375 (US) DE REYNAL, Michel Jr. 64370 Arthez De Bearn (FR) AMUNDSEN, Marvin Windsor Houston, TX 77095 (US) JOHNSON, Charles Daniel Porter, TX 77365 (US)

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

(54)	SHORT MATRIX DRILL BITS AND METHODOLOGIES FOR MANUFACTURING SHORT MATRIX DRILL BITS