DRILLING EQUIPMENT DEVICE ESPECIALLY ARRANGED FOR REAMING A BOREHOLE IN A ROCK FORMATION AND METHOD OF REAMING A BOREHOLE IN A ROCK FORMATION - Patent 2976486

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EP 2 976 486 A1

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(43)	Date of publication:
	27.01.2016 Bulletin 2016/04

(21)	Application number: 14772571.7

(22)	Date of filing: 18.03.2014

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International Patent Classification (IPC):

E21B 7/28^(2006.01)

E21B 10/26^(2006.01)

(86)	International application number:
	PCT/NO2014/050040

(87)	International publication number:
	WO 2014/158026 (02.10.2014 Gazette 2014/40)

(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

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Priority:

22.03.2013 NO 20130420
12.03.2014 NO 20140315

(71)	Applicant: Norhard AS
	4441 Tonstad (NO)

(72)	Inventor:
	HAUGHOM, Per, Olav N-4440 Tonstad (NO)

(74)	Representative: Håmsø Patentbyrå ANS
	Postboks 171 4302 Sandnes 4302 Sandnes (NO)

(54)	DRILLING EQUIPMENT DEVICE ESPECIALLY ARRANGED FOR REAMING A BOREHOLE IN A ROCK FORMATION AND METHOD OF REAMING A BOREHOLE IN A ROCK FORMATION