Recovering petroleum from subterranean formations

Patent · Tue Oct 10 00:00:00 EDT 1978

OSTI ID:6501087

Wu, C H; Brown, A; Hall, W L

A process for enhanced recovery of petroleum from subterranean formations is disclosed, wherein steam is injected into a formation via an injection well, and a mixture of petroleum and steam condensate is produced via a production well, wherein the produced mixture is flashed for production of a steam-distilled hydrocarbon fraction, and wherein the steam distilled hydrocarbon fraction is injected, with additional steam, into a subterranean formation for increased recovery of petroleum. The process disclosed is particularly useful in recovery of heavy (low API gravity) petroleum.

• Assignee: Texaco Inc.
• Patent Number(s): US 4119149
• OSTI ID: 6501087
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
OIL WELLS
PETROLEUM
PETROLEUM DEPOSITS
RESOURCES
STEAM INJECTION
VISCOSITY
WELLS