EP 1939393 A1 20080702 - Sustainable method for recovery of petroleum
Title (en)
Sustainable method for recovery of petroleum
Title (de)
Erneuerbares Verfahren zur Rückgewinnung von Rohöl
Title (fr)
Procédé durable pour la récupération de pétrole
Publication
Application
Priority
BR PI0605371 A 20061222
Abstract (en)
The present invention refers to the use of solvents such as light liquid fractions of petroleum, for example diesel oil and gas oil, a light petroleum, and the essential oils derived from renewable sources such as for example biodiesel, used pure or mutually admixed in any proportion, for injection into a geological formation through an injection well, there resulting a final mixture (petroleum/injected solvent) presenting much lower viscosity and much greater fluidity than the original petroleum, having an impact throughout the petroleum production chain. The present patent presents real gains in all phases of the production chain.
IPC 8 full level
E21B 43/16 (2006.01)
CPC (source: EP US)
E21B 43/16 (2013.01 - EP US)
Citation (applicant)
- US 4531586 A 19850730 - MCMILLEN JAMES M [US]
- US 3127934 A 19640407 - CSASZAR ALBERT K
- US 3135326 A 19640602 - SANTEE HAROLD P
Citation (search report)
- [X] US 3135326 A 19640602 - SANTEE HAROLD P
- [X] US 4899817 A 19900213 - DJABBARAH NIZAR F [US]
- [X] GB 2096670 A 19821020 - MOBIL OIL CORP
- [X] US 3467191 A 19690916 - DAALEN FRANCOIS VAN, et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1939393 A1 20080702; BR PI0605371 A 20080805; CA 2630682 A1 20080622; NO 20076519 L 20080623; US 2008173447 A1 20080724; US 2010006285 A1 20100114
DOCDB simple family (application)
EP 07254825 A 20071212; BR PI0605371 A 20061222; CA 2630682 A 20071221; NO 20076519 A 20071218; US 449107 A 20071221; US 48287509 A 20090611