(19)
(11) EP 2 616 629 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:
12.04.2017 Bulletin 2017/15

(45) Mention of the grant of the patent:
01.02.2017 Bulletin 2017/05

(21) Application number: 11778537.8

(22) Date of filing: 13.09.2011
(51) International Patent Classification (IPC): 
E21B 21/08(2006.01)
G01F 1/84(2006.01)
E21B 21/10(2006.01)
F15B 15/06(2006.01)
 E21B 47/10(2012.01)
G01F 15/12(2006.01)
F16K 5/12(2006.01)
(86) International application number:
PCT/EP2011/065834
(87) International publication number:
WO 2012/035001 (22.03.2012 Gazette 2012/12)

(54)

MANAGED PRESSURE DRILLING APPARATUS

BOHRVORRICHTUNG MIT DRUCKREGELUNG

APPAREIL DE FORAGE

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR 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: 15.09.2010 GB 201015408

(43) Date of publication of application:
24.07.2013 Bulletin 2013/30

(73) Proprietor: Managed Pressure Operations Pte. Ltd
Singapore 099253 (SG)

(72) Inventor:
  • LEUCHTENBERG, Christian
    Singapore 098656 (SG)

(74) Representative: Lawson, Alison Christina 
Forresters Skygarden Erika-Mann-Strasse 11
80636 München
80636 München (DE)


(56) References cited: : 
EP-A1- 0 022 644
WO-A1-00/03144
WO-A1-2007/034152
WO-A2-2011/058031
US-A- 3 563 511
US-A1- 2007 151 762
US-B1- 6 413 297
 EP-A1- 2 075 403
WO-A1-2005/017308
WO-A1-2008/051978
US-A- 3 338 319
US-A1- 2006 162 792
US-B1- 6 263 981
   
       
    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).