Method for enchanced recovery of petroleum

Patent · Tue Sep 23 00:00:00 EDT 1980

OSTI ID:6797108

Buinicky, E P; Estes, J H

An enhanced oil recovery method comprising injecting an aqueous solution of ammonium salts selected from the group consisting of ammonium sulfite, ammonium bisulfite, and mixtures thereof into a petroleum-bearing earth formation, heating said injected aqueous solution to a temperature in the range of about 120/sup 0/-300/sup 0/F., or higher in the presence of said petroleum-bearing earth formation, flowing said heated aqueous solution through said petroleum bearing earth formation to drive petroleum to a recovery well, and producing increased amounts of petroleum from said earth formation through said recovery well.

• Assignee: Texaco Inc
• Patent Number(s): US 4223731
• OSTI ID: 6797108
• Resource Relation: Patent File Date: Filed date 24 Nov 1978
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
FLUID INJECTION
AMMONIUM COMPOUNDS
ENHANCED RECOVERY
PETROLEUM
ENERGY SOURCES
FOSSIL FUELS
FUELS
RECOVERY
WELLS
020300* - Petroleum- Drilling & Production