Olefin and/or aromatic miscible slug secondary recovery process
Patent
·
OSTI ID:6673387
In a miscible slug, secondary-recovery process, a slug of low molecular weight olefinic or mononuclear hydrocarbon is first injected into the formation. Then a quantity of amphipathic solvent such as isopropyl alcohol is injected. Finally, floodwater is injected to drive the oil toward the producing wells. Because the first injected hydrocarbon is miscible with the petroleum in the reservoir, and the amphipathic solvent displays a more favorable partition coefficient in the presence of the olefin or aromatic hydrocarbon, the efficiency of oil recovery is substantially enhanced.
- Assignee:
- Union Oil Co. of California
- Patent Number(s):
- US 3220474
- OSTI ID:
- 6673387
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALCOHOLS
ALKENES
AROMATICS
ENERGY SOURCES
ENGINEERING
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROXY COMPOUNDS
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
ORGANIC COMPOUNDS
PETROLEUM
RECOVERY
RESERVOIR ENGINEERING
STIMULATION
WATERFLOODING
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
ALCOHOLS
ALKENES
AROMATICS
ENERGY SOURCES
ENGINEERING
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROXY COMPOUNDS
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
ORGANIC COMPOUNDS
PETROLEUM
RECOVERY
RESERVOIR ENGINEERING
STIMULATION
WATERFLOODING
WELL STIMULATION
WELLS