Method for diverting steam in thermal recovery process

Patent · Tue Sep 23 04:00:00 EDT 1986

OSTI ID:5196902

Shu, W R

A method is described of recovering viscous oil from a subterranean, viscous oil-containing, permeable formation penetrated by an injection well which is in fluid communications with the lower one-third to one-half of the formation and production well which is in fluid communication with a substantial portion of the formation, comprising: (a) injecting steam into the formation through the injection well and recovering fluid including oil from the formation by the production well for a predetermined period of time; (b) shutting in the production well; (c) injecting an oxygen-containing gas into the steam swept zone through the injection well in an amount of 0.5 to 1.5 MSCF of oxygen per barrel of residual oil in the steam-swept zone; and (d) thereafter injecting steam only into the formation through the injection well.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4612990
• OSTI ID: 5196902
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ASPHALTS
BITUMENS
CHEMICAL REACTIONS
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INJECTION WELLS
NONMETALS
OIL WELLS
OIL YIELDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXYGEN
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM
PRESSURIZING
QUANTITY RATIO
RECOVERY
RESIDUAL PETROLEUM
STEAM
STEAM INJECTION
STIMULATION
TAR
TIME DEPENDENCE
VISCOSITY
WATER
WELL STIMULATION
WELLS
YIELDS