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Use of viscoelastic fluids for mobility control

Patent ·
OSTI ID:6620964
Viscoelastic fluids are employed in flooding subterranean reservoirs by first flooding a porous medium representative of the reservoir rock with the formation fluids at the desired velocity of the oil recovery process, then flooding a similar porous medium with the viscoelastic fluid at the same velocity and observing the viscosity thereof and thereater designing the oil recovery process based on this viscosity. It has been observed that the viscosity of viscoelastic fluids is dependent on the velocity. Examples of useful viscoelastic fluids include micellar solutions, aqueous solutions of polyacrylamides, etc. (7 claims)
Assignee:
Marathon Oil Co
Patent Number(s):
US 3822746
OSTI ID:
6620964
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CONTROL
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
MICELLAR SYSTEMS
MOBILITY
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROLEUM
POLYAMIDES
POLYMERS
RECOVERY
RESERVOIR ROCK
STIMULATION
SURFACTANTS
VELOCITY
VISCOSITY
WATERFLOODING
WELL STIMULATION
WELLS