(19)
(11) EP 2 867 327 A1

(12)

(43) Date of publication:
06.05.2015 Bulletin 2015/19

(21) Application number: 13808699.6

(22) Date of filing: 25.06.2013
(51) International Patent Classification (IPC): 
C09K 8/58(2006.01)
E21B 43/22(2006.01)
(86) International application number:
PCT/US2013/047587
(87) International publication number:
WO 2014/004485 (03.01.2014 Gazette 2014/01)
(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
Designated Extension States:
BA ME

(30) Priority: 27.06.2012 US 201261664910 P

(71) Applicant: Shell Internationale Research Maatschappij B.V.
2596 HR The Hague (NL)

(72) Inventors:
  • MILAM, Stanley Nemec
    Houston, Texas 77055 (US)
  • FREEMAN, John Justin
    Houston, Texas 77084 (US)
  • TEGELAAR, Erik Willem
    NL-2288GS Rijswijk (NL)

(74) Representative: Matthezing, Robert Maarten 
Shell International B.V. Intellectual Property Services P.O. Box 384
2501 CJ The Hague
2501 CJ The Hague (NL)

   


(54) PETROLEUM RECOVERY PROCESS AND SYSTEM