Waterflood stabilization for paraffinic crude oils
Patent
·
OSTI ID:5071803
A waterflooding process is described wherein paraffinic precipitation is avoided in reservoirs containing paraffinic crude oils, having ambient reservoir temperatures near the pour point of the crude oil. The process involves raising the temperature of the injected water 10/sup 0/ to 20/sup 0/F higher than the pour point or ambient temperature of the reservoir. Thus, the water injection and subsequent drive of crude oil through the reservoir does not significantly lower the temperature of the paraffinic crude avoiding precipitation of paraffin within the reservoir. (6 claims)
- Assignee:
- Cities Service Oil Co.
- Patent Number(s):
- US 3703927
- OSTI ID:
- 5071803
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKANES
AMBIENT TEMPERATURE
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROCARBONS
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PETROLEUM
PLUGGING
PRECIPITATION
SEPARATION PROCESSES
STABILIZATION
WATERFLOODING
WAXES
WELLS
020300* -- Petroleum-- Drilling & Production
ALKANES
AMBIENT TEMPERATURE
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROCARBONS
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PETROLEUM
PLUGGING
PRECIPITATION
SEPARATION PROCESSES
STABILIZATION
WATERFLOODING
WAXES
WELLS