(19)
(11) EP 3 097 261 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:
30.06.2021 Bulletin 2021/26

(45) Mention of the grant of the patent:
05.05.2021 Bulletin 2021/18

(21) Application number: 15703660.9

(22) Date of filing: 14.01.2015
(51) International Patent Classification (IPC): 
E21B 43/20(2006.01)
 E21B 43/38(2006.01)
(86) International application number:
PCT/US2015/011353
(87) International publication number:
WO 2015/112394 (30.07.2015 Gazette 2015/30)

(54)

DOWNHOLE OIL/WATER SEPARATION SYSTEM FOR IMPROVED INJECTIVITY AND RESERVOIR RECOVERY

ÖL/WASSER-BORHLOCHTRENNSYSTEM ZUR VERBESSERTEN INJEKTIVITÄT UND RESERVOIRWIEDERHERSTELLUNG

SYSTÈME DE SÉPARATION PÉTROLE/EAU DE FONDS DE PUITS DESTINÉ À AMÉLIORER L'INJECTIVITÉ ET LA RÉCUPÉRATION DU RÉSERVOIR

(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: 22.01.2014 US 201461930018 P

(43) Date of publication of application:
30.11.2016 Bulletin 2016/48

(73) Proprietor: Saudi Arabian Oil Company
Dhahran 31311 (SA)

(72) Inventors:
  • ROTH, Brian A.
    Dhahran 31311 (SA)
  • BUSFAR, Wessam A.
    Dhahran 31311 (SA)

(74) Representative: Dauncey, Mark Peter 
Marks & Clerk LLP 1 New York Street
Manchester M1 4HD
Manchester M1 4HD (GB)


(56) References cited: : 
CN-A- 102 828 736
US-A1- 2011 079 388
 US-A- 5 915 477
   
  • A Jokhio S ET AL: "DOWS (Downhole Oil-Water Separation) Cross-Waterflood Economics", , 17 April 2002 (2002-04-17), XP055177343, Retrieved from the Internet: URL:https://www.onepetro.org/download/conf erence-paper/SPE-75273-MS?id=conference-pa per%2FSPE-75273-MS [retrieved on 2015-03-17]
  • None
   
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).