(19)
(11) EP 3 494 286 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:
07.07.2021 Bulletin 2021/27

(45) Mention of the grant of the patent:
02.06.2021 Bulletin 2021/22

(21) Application number: 17837672.9

(22) Date of filing: 03.08.2017
(51) International Patent Classification (IPC): 
E21B 49/00(2006.01)
E21B 25/00(2006.01)
 E21B 41/00(2006.01)
(86) International application number:
PCT/US2017/045268
(87) International publication number:
WO 2018/027016 (08.02.2018 Gazette 2018/06)

(54)

ESTIMATION OF OPTIMUM TRIPPING SCHEDULES

SCHÄTZUNG VON OPTIMALEN AUSLÖSUNGSPLÄNEN

ESTIMATION DE PROGRAMMES DE FORAGE OPTIMAUX

(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: 04.08.2016 US 201615228220

(43) Date of publication of application:
12.06.2019 Bulletin 2019/24

(73) Proprietor: Baker Hughes Holdings LLC
Houston, TX 77073 (US)

(72) Inventors:
  • HOEINK, Tobias
    Houston, Texas 77073 (US)
  • VAN DER ZEE, Wouter E.
    Houston, Texas 77073 (US)

(74) Representative: BRP Renaud & Partner mbB Rechtsanwälte Patentanwälte Steuerberater 
Königstraße 28
70173 Stuttgart
70173 Stuttgart (DE)


(56) References cited: : 
US-A1- 2003 168 257
US-A1- 2009 152 005
US-A1- 2014 345 945
 US-A1- 2005 267 719
US-A1- 2011 174 543
   
       
    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).