METHOD AND APPARATUS FOR DETONATING AN EXPLOSIVE CHARGE - Patent 1409839

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EP 1 409 839 A1

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(43)	Date of publication:
	21.04.2004 Bulletin 2004/17

(21)	Application number: 02754797.5

(22)	Date of filing: 28.06.2002

(51)	International Patent Classification (IPC)⁷: E21B 43/1185

(86)	International application number:
	PCT/EP2002/007205

(87)	International publication number:
	WO 2003/002849 (09.01.2003 Gazette 2003/02)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

29.06.2001 US 896432
29.06.2001 US 896430
29.06.2001 US 896433

(71)	Applicant: SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.
	2596 HR Den Haag (NL)

(72)	Inventors:
	CERNOCKY, Edward, Paul Sugar Land, TX 77479 (US) LINDFORS, Allen, J. Inyokern, CA 93527 (US)

(54)	METHOD AND APPARATUS FOR DETONATING AN EXPLOSIVE CHARGE