Stem drive oil recovery method utilizing a downhole steam generator and anti clay-swelling agent
Viscous oil is recovered from a subterranean, viscous oil-containing formation by a steam flooding technique wherein steam is generated in a downhole steam generator located in an injection well by spontaneous combustion of a pressurized mixture of a water-soluble fuel such as sugars and alcohols dissolved in water or a stable hydrocarbon fuel-in-water emulsion containing an anti clay-swelling agent and substantially pure oxygen. The generated mixture of steam and combustion gases pass through the formation, displacing oil and reducing the oil's viscosity and the mobilized oil is produced from the formation via a spaced-apart production well. Suitable anti clay-swelling agents include metal halide salts and diammonium phosphate.
- Assignee:
- Mobil Oil Corp.
- Patent Number(s):
- US 4522263
- OSTI ID:
- 6322762
- Resource Relation:
- Patent File Date: Filed date 23 Jan 1983; Other Information: PAT-APPL-573094
- Country of Publication:
- United States
- Language:
- English
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Steam drive oil recovery method utilizing a downhole steam generator
Steam drive recovery method utilizing a downhole steam generator
Related Subjects
OIL WELLS
DISPLACEMENT FLUIDS
STEAM GENERATION
STEAM INJECTION
ALCOHOLS
AMMONIUM PHOSPHATES
AQUEOUS SOLUTIONS
CLAYS
COMBUSTION PRODUCTS
EMULSIONS
HALIDES
IN-SITU PROCESSING
METALS
PETROLEUM
PRODUCTION
SACCHARIDES
SPONTANEOUS COMBUSTION
SWELLING
VISCOSITY
AMMONIUM COMPOUNDS
CARBOHYDRATES
CHEMICAL REACTIONS
COLLOIDS
COMBUSTION
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PROCESSING
SOLUTIONS
THERMOCHEMICAL PROCESSES
WELLS
020300* - Petroleum- Drilling & Production