Solvent flooding with a horizontal injection well in gas flooded reservoirs
Patent
·
OSTI ID:5748147
This patent describes a method for recovering residual hydrocarbons from a reservoir having a substantial vertical thickness, the method comprises: drilling and completing at least one horizontal injection well relatively near the top of the reservoir, the reservoir having an oil saturation relatively near residual oil saturation to gas; injecting a miscible solvent into the reservoir through the horizontal injection well to create a curtain of solvent falling through the reservoir , the solvent having a substantially greater density than the gas in the reservoir; and producing through at least one horizontal production well completed relatively near the bottom of the reservoir, hydrocarbons and other fluids that have been driven downward by the falling solvent curtain.
- Assignee:
- Texaco Inc., White Plains, NY
- Patent Number(s):
- US 4834179
- OSTI ID:
- 5748147
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKANES
COAL TAR OILS
DISPLACEMENT FLUIDS
DISTILLATES
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
INJECTION WELLS
KEROSENE
LIQUID FUELS
MISCIBLE-PHASE DISPLACEMENT
NAPHTHA
OIL WELLS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
RECOVERY
RESIDUAL PETROLEUM
SOLVENTS
STIMULATION
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
ALKANES
COAL TAR OILS
DISPLACEMENT FLUIDS
DISTILLATES
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
INJECTION WELLS
KEROSENE
LIQUID FUELS
MISCIBLE-PHASE DISPLACEMENT
NAPHTHA
OIL WELLS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
RECOVERY
RESIDUAL PETROLEUM
SOLVENTS
STIMULATION
WELL STIMULATION
WELLS