METHOD OF ENHANCING ADSORPTION OF AN INHIBITOR ONTO A WELLBORE REGION

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EP 2 217 671 B8

(12)	CORRECTED EUROPEAN PATENT SPECIFICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 B1)

(48)	Corrigendum issued on:
	28.03.2012 Bulletin 2012/13

(45)	Mention of the grant of the patent:
	08.02.2012 Bulletin 2012/06

(21)	Application number: 08840483.5

(22)	Date of filing: 15.10.2008

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International Patent Classification (IPC):

C09K 8/528^(2006.01)

C09K 8/54^(2006.01)

(86)	International application number:
	PCT/IB2008/002728

(87)	International publication number:
	WO 2009/050561 (23.04.2009 Gazette 2009/17)

(54)	METHOD OF ENHANCING ADSORPTION OF AN INHIBITOR ONTO A WELLBORE REGION VERFAHREN ZUR VERBESSERTEN ADSORPTION EINES INHIBITORS AUF EINEM BOHRLOCHBEREICH PROCÉDÉ POUR AMÉLIORER L'ADSORPTION D'UN INHIBITEUR SUR UNE PARTIE DE PUITS DE PÉTROLE

(84)	Designated Contracting States:
	GB NL NO

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Priority:

15.10.2007 US 980040 P
07.12.2007 US 12292

(43)	Date of publication of application:
	18.08.2010 Bulletin 2010/33

(73)	Proprietors:
	M-I SWACO Norge AS 4033 Forus, Stavanger (NO) Oilfield Mineral Solutions Limited Newtongrange Edinburgh, EH22 4DG (GB)

(72)	Inventors:
	KEATCH, Richard Tarland AB34 4TT (GB) GUAN, Hua Aberdeen AB12 3LW (GB)

(74)	Representative: Bailey, Sam Rogerson et al
	Mewburn Ellis LLP 33 Gutter Lane London EC2V 8AS London EC2V 8AS (GB)

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References cited: :

EP-A- 0 459 171
US-A- 3 654 993

EP-A- 0 781 729
US-A- 5 211 237

Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).