(19)
(11) EP 2 685 046 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:
05.04.2017 Bulletin 2017/14

(45) Mention of the grant of the patent:
21.12.2016 Bulletin 2016/51

(21) Application number: 11860600.3

(22) Date of filing: 28.09.2011
(51) International Patent Classification (IPC): 
E21B 43/38(2006.01)
B01D 17/02(2006.01)
 B01D 45/02(2006.01)
(86) International application number:
PCT/CN2011/001640
(87) International publication number:
WO 2012/119283 (13.09.2012 Gazette 2012/37)

(54)

CROWN-SHAPED SEPARATION DEVICE FOR SEPARATING OIL AND WATER IN WELL

KRONENFÖRMIGE TRENNVORRICHTUNG ZUM TRENNEN VON ÖL UND WASSER IN BOHRLÖCHERN

DISPOSITIF DE SÉPARATION EN FORME DE COURONNE POUR SÉPARER LE PÉTROLE ET L'EAU DANS UN 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: 09.03.2011 CN 201120060174 U
09.03.2011 CN 201120060175 U

(43) Date of publication of application:
15.01.2014 Bulletin 2014/03

(73) Proprietors:
  • Petrochina Company Limited
    Beijing 100007 (CN)
  • Daqing Oilfield Co. Ltd.
    Ranghulu District Daqing, Heilongjiang 163453 (CN)

(72) Inventors:
  • WANG, Yan
    Daqing City Heilongjiang 163001 (CN)
  • WANG, Demin
    Daqing City Heilongjiang 163001 (CN)
  • ZHU, Rongjie
    Daqing City Heilongjiang 163001 (CN)
  • REN, Long
    Daqing City Heilongjiang 163001 (CN)
  • ZHONG, Rong
    Daqing City Heilongjiang 163001 (CN)
  • WANG, Hongyan
    Daqing City Heilongjiang 163001 (CN)

(74) Representative: Karlström, Lennart 
Noréns Patentbyrå AB P.O. Box 10198
100 55 Stockholm
100 55 Stockholm (SE)


(56) References cited: : 
CN-A- 1 626 770
CN-A- 101 377 126
CN-A- 101 773 742
CN-U- 201 599 019
CN-U- 201 943 683
RU-C2- 2 269 649
US-A- 4 241 788
 CN-A- 101 025 080
CN-A- 101 377 126
CN-A- 101 773 742
CN-U- 201 599 019
CN-U- 201 943 684
RU-C2- 2 269 649
US-A- 4 241 788
   
       
    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).