METHOD AND SYSTEM FOR PERFORMING OPERATIONS AND FOR IMPROVING PRODUCTION IN WELLS - Patent 1287230

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EP 1 287 230 A2

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(88)	Date of publication A3:
	06.06.2002

(43)	Date of publication:
	05.03.2003 Bulletin 2003/10

(21)	Application number: 01941647.8

(22)	Date of filing: 25.05.2001

(51)	International Patent Classification (IPC)⁷: E21B 47/00

(86)	International application number:
	PCT/US0117/152

(87)	International publication number:
	WO 0109/2675 (06.12.2001 Gazette 2001/49)

(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:

01.06.2000 US 586648

(71)	Applicant: Marathon Oil Company
	Houston, TX 77056 (US)

(72)	Inventors:
	SNIDER, Philip, M. Houston, TX 77070 (US) ZIEROLF, Joseph, A. Houma, LA 70360 (US)

(74)	Representative: Mallalieu, Catherine Louise
	D. Young & Co.,21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)

(54)	METHOD AND SYSTEM FOR PERFORMING OPERATIONS AND FOR IMPROVING PRODUCTION IN WELLS