EP 1258595 A3 20040303 - Enhanced oil recovery method using CO2 injection
Title (en)
Enhanced oil recovery method using CO2 injection
Title (de)
Verfahren zur Tertiärförderung mittels Einpressung von CO2
Title (fr)
Procédé d'extraction tertiaire de pétrole utilisant l'injection de CO2
Publication
Application
Priority
US 85836301 A 20010516
Abstract (en)
[origin: EP1258595A2] A method for enhancing the recovery of oil from underground formations is disclosed. A gas mixture which contains greater than 50% by volume carbon dioxide, the remainder typically being an inert gas, is injected in the underground formation to lower the oil viscosity and surface tension and increase the oil swelling. Preferably, the gas mixture contains greater than 60% by volume carbon dioxide with a gas mixture containing greater than 70% by volume carbon dioxide preferred. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 43/16 (2006.01)
CPC (source: EP US)
E21B 43/164 (2013.01 - EP US)
Citation (search report)
- [X] US 3084743 A 19630409 - WEST ROBERT C, et al
- [X] US 5046561 A 19910910 - HUANG WANN-SHENG [US], et al
- [X] US 4736792 A 19880412 - BROWN ALFRED [US], et al
- [XD] US 2623596 A 19521230 - WHORTON LEONIDAS P, et al
- [XD] US 3295601 A 19670103 - MELCON SANTOURIAN
- [X] US 5285848 A 19940215 - CHANG HARRY L [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1258595 A2 20021120; EP 1258595 A3 20040303; AU 4058402 A 20021121; CA 2384612 A1 20021116; CN 1385595 A 20021218; MX PA02004535 A 20040716; US 2003037928 A1 20030227
DOCDB simple family (application)
EP 02253397 A 20020515; AU 4058402 A 20020509; CA 2384612 A 20020502; CN 02120034 A 20020515; MX PA02004535 A 20020507; US 85836301 A 20010516