(19)
(11) EP 3 236 003 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:
22.05.2024 Bulletin 2024/21

(45) Mention of the grant of the patent:
03.04.2024 Bulletin 2024/14

(21) Application number: 17171262.3

(22) Date of filing: 11.11.2011
(51) International Patent Classification (IPC): 
E21B 34/06(2006.01)
(52) Cooperative Patent Classification (CPC):
E21B 34/066; E21B 2200/05

(54)

WELL TOOL

BOHRLOCHWERKZEUG

OUTIL DE PUITS

(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: 22.11.2010 US 951502

(43) Date of publication of application:
25.10.2017 Bulletin 2017/43

(62) Application number of the earlier application in accordance with Art. 76 EPC:
11842525.5 / 2643548

(73) Proprietor: Halliburton Energy Services, Inc.
Houston, TX 77032-3219 (US)

(72) Inventors:
  • Vick, James D.
    Carrollton, TX 75006 (US)
  • Williamson, Jimmie R.
    Carrollton, TX 75006 (US)
  • Scott, Bruce E.
    Carrollton, TX 75006 (US)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)


(56) References cited: : 
US-A1- 2008 157 014
 US-A1- 2009 293 238
   
       
    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).