DEVICE AND METHOD FOR THE LONGITUDINAL SLOTTING OF CASINGS WITH A SLOTTING TOOL AND SUBSEQUENT MILLING OF THE PREVIOUSLY SLOTTED TUBE WALLS - Patent 3420178

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EP 3 420 178 A1

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(43)	Date of publication:
	02.01.2019 Bulletin 2019/01

(21)	Application number: 17707309.5

(22)	Date of filing: 24.02.2017

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International Patent Classification (IPC):

E21B 29/00^(2006.01)

E21B 10/32^(2006.01)

(86)	International application number:
	PCT/EP2017/054426

(87)	International publication number:
	WO 2017/144712 (31.08.2017 Gazette 2017/35)

(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 MD

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Priority:

26.02.2016 DE 102016103507

(71)	Applicant: DEA Deutsche Erdoel AG
	22297 Hamburg (DE)

(72)	Inventor:
	RITSCHEL, Robert 22303 Hamburg (DE)

(74)	Representative: Müller Schupfner & Partner Patent- und Rechtsanwaltspartnerschaft mbB
	Schellerdamm 19 21079 Hamburg 21079 Hamburg (DE)

(54)	DEVICE AND METHOD FOR THE LONGITUDINAL SLOTTING OF CASINGS WITH A SLOTTING TOOL AND SUBSEQUENT MILLING OF THE PREVIOUSLY SLOTTED TUBE WALLS