Method for producing heavy crude
Patent
·
OSTI ID:5693478
A process for the in situ recovery of viscous oil from a subterranean formation is disclosed. Steam is injected into the formation via a well, permitted to soak, and heated fluids including heated viscous oil are produced sufficient to create a substantial fluid mobility in the formation. Then a hydrocarbon solvent having a low concentration of low molecular weight paraffinic hydrocarbons is injected into the formation, and another steam injection, soak and oil production cycle is performed to recover significant additional quantities of oil.
- Assignee:
- Exxon Production Research Co
- Patent Number(s):
- US 4280559
- OSTI ID:
- 5693478
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
AROMATICS
BENZENE
ENERGY
ENERGY SOURCES
ENHANCED RECOVERY
FLUID FLOW
FLUID INJECTION
FOSSIL FUELS
FUELS
GASOLINE
HEAT
HYDROCARBONS
LIQUID FUELS
OIL WELLS
OILS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM PRODUCTS
RECOVERY
SOLVENTS
STEAM INJECTION
STIMULATION
THERMAL RECOVERY
TOLUENE
VISCOSITY
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
AROMATICS
BENZENE
ENERGY
ENERGY SOURCES
ENHANCED RECOVERY
FLUID FLOW
FLUID INJECTION
FOSSIL FUELS
FUELS
GASOLINE
HEAT
HYDROCARBONS
LIQUID FUELS
OIL WELLS
OILS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM PRODUCTS
RECOVERY
SOLVENTS
STEAM INJECTION
STIMULATION
THERMAL RECOVERY
TOLUENE
VISCOSITY
WELL STIMULATION
WELLS