(19)
(11) EP 2 815 066 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:
15.11.2017 Bulletin 2017/46

(45) Mention of the grant of the patent:
27.09.2017 Bulletin 2017/39

(21) Application number: 13749619.6

(22) Date of filing: 16.01.2013
(51) International Patent Classification (IPC): 
E21B 23/04(2006.01)
(86) International application number:
PCT/US2013/021646
(87) International publication number:
WO 2013/122712 (22.08.2013 Gazette 2013/34)

(54)

SELECTIVELY CORRODIBLE DOWNHOLE ARTICLE AND METHOD OF USE

SELEKTIV KORRODIERBARER BOHRLOCHARTIKEL UND VERWENDUNGSVERFAHREN

ARTICLE DE FOND DE TROU POUVANT ÊTRE CORRODÉ DE FAÇON SÉLECTIVE ET PROCÉDÉ D'UTILISATION

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 13.02.2012 US 201213371788

(43) Date of publication of application:
24.12.2014 Bulletin 2014/52

(73) Proprietor: Baker Hughes, a GE company, LLC
Houston, TX 77210-4740 (US)

(72) Inventors:
  • MAZYAR, Oleg A.
    Katy, Texas 77494 (US)
  • JOHNSON, Michael H.
    Katy, Texas 77450 (US)

(74) Representative: Mabey, Katherine Frances 
Dehns St Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)


(56) References cited: : 
GB-A- 2 435 046
US-A- 5 607 017
US-A1- 2008 066 924
US-A1- 2009 050 334
 US-A- 5 479 986
US-A1- 2007 181 224
US-A1- 2008 135 249
US-A1- 2010 294 510
   
       
    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).