GRAVEL PACK FOR PETROLEUM OR WATER WELLS - Patent 0348463

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EP 0 348 463 A1

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(43)	Date of publication:
	03.01.1990 Bulletin 1990/01

(21)	Application number: 88910446.0

(22)	Date of filing: 27.10.1988

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International Patent Classification (IPC):

B01D 29/ 11^{( . )}
E21B 43/ 04^{( . )}
B01D 29/ 15^{( . )}

B01D 39/ 20^{( . )}
E21B 43/ 08^{( . )}

(86)	International application number:
	PCT/US1988/003825

(87)	International publication number:
	WO 1989/003926 (05.05.1989 Gazette 1989/10)

(84)	Designated Contracting States:
	AT BE CH DE FR GB IT LI LU NL SE

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Priority:

29.10.1987 US 19870114665

(71)	Applicant: THE PATENT COMPANY
	Dallas, TX 75231 (US)

(72)	Inventor:
	JACKSON, Richard, C. Dallas, TX 75238 (US)

(74)	Representative: Seaborn, George Stephen
	c/o Edward Evans & Co. Chancery House 53-64 Chancery Lane London WC2A 1SD London WC2A 1SD (GB)

(54)	GRAVEL PACK FOR PETROLEUM OR WATER WELLS