PROCESS FOR TREATMENT OF DRILLING MUD - Patent 0403538

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EP 0 403 538 A1

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(43)	Date of publication:
	27.12.1990 Bulletin 1990/52

(21)	Application number: 89903612.0

(22)	Date of filing: 01.03.1989

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International Patent Classification (IPC):

B01D 3/ 10^{( . )}
F26B 17/ 20^{( . )}

E21B 21/ 06^{( . )}
F26B 25/ 00^{( . )}

(86)	International application number:
	PCT/US1989/000819

(87)	International publication number:
	WO 1989/008487 (21.09.1989 Gazette 1989/23)

(84)	Designated Contracting States:
	BE CH DE FR LI NL SE

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Priority:

08.03.1988 US 19880165324

(71)	Applicant: ADVANCED REFINERY TECHNOLOGY
	Klamath Falls, OR 97601 (US)

(72)	Inventor:
	WILWERDING, Carl, Michael Klamath Falls, OR 97601 (US)

(74)	Representative: Dipl.-Phys.Dr. Manitz Dipl.-Ing. Finsterwald Dipl.-Ing. Grämkow Dipl.Chem.Dr. Heyn Dipl.Phys. Rotermund Morgan, B.Sc.(Phys.)
	Postfach 22 16 11 D-80506 München D-80506 München (DE)

(54)	PROCESS FOR TREATMENT OF DRILLING MUD