A TELESCOPIC CONDUCTOR CASING FOR A WELL INSTALLATION AND A METHOD OF DRIVING SAME INTO THE UNDERGROUND - Patent 1740793

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EP 1 740 793 A1

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(43)	Date of publication:
	10.01.2007 Bulletin 2007/02

(21)	Application number: 05734779.1

(22)	Date of filing: 13.04.2005

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International Patent Classification (IPC):

E21B 7/20^(2006.01)

E21B 17/08^(2006.01)

(86)	International application number:
	PCT/NO2005/000120

(87)	International publication number:
	WO 2005/100732 (27.10.2005 Gazette 2005/43)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

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Priority:

13.04.2004 NO 20041495

(71)	Applicant: Strand, Harald
	4330 Algard (NO)

(72)	Inventor:
	Strand, Harald 4330 Algard (NO)

(74)	Representative: Nettleton, John Victor et al
	Abel & Imray 20 Red Lion Street London WC1R 4PQ London WC1R 4PQ (GB)

(54)	A TELESCOPIC CONDUCTOR CASING FOR A WELL INSTALLATION AND A METHOD OF DRIVING SAME INTO THE UNDERGROUND