METHOD FOR INJECTING DENSE ADDITIVE INTO DRILLING WELLS AND COMPOSITION THEREFORE - Patent 1208282

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EP 1 208 282 A1

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(43)	Date of publication:
	29.05.2002 Bulletin 2002/22

(21)	Application number: 00945008.1

(22)	Date of filing: 29.06.2000

(51)	International Patent Classification (IPC)⁷: E21B 21/00, C09K 7/00

(86)	International application number:
	PCT/US0017/982

(87)	International publication number:
	WO 0107/750 (01.02.2001 Gazette 2001/05)

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

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Priority:

26.07.1999 US 360558

(71)	Applicant: Grinding & Sizing Co., Inc.
	Lufkin, TX 75904 (US)

(72)	Inventor:
	GREEN, Ban, D. New Iberia, LA 70563 (US)

(74)	Representative: Frankland, Nigel Howard
	FORRESTER & BOEHMERTPettenkoferstrasse 20-22 80336 München 80336 München (DE)

(54)	METHOD FOR INJECTING DENSE ADDITIVE INTO DRILLING WELLS AND COMPOSITION THEREFORE