Oil recovery with vinyl sulfonic acid-acrylamide copolymers
Patent
·
OSTI ID:7093244
An aqueous polymer flood containing sulfomethylated alkali metal vinyl sulfonate-acrylamide copolymers was proposed for use in secondary or tertiary enhanced oil recovery. The sulfonate groups on the copolymers sustain the viscosity of the flood in the presence of brine and lime. Injection of the copolymer solution into a waterflooded Berea core, produced 30.5 percent of the residual oil. It is preferred that the copolymers are partially hydrolyzed.
- Assignee:
- Marathon Oil Co.
- Patent Number(s):
- US 3779917
- OSTI ID:
- 7093244
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ACRYLAMIDE
AMIDES
COPOLYMERS
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
FOSSIL FUELS
FUELS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
POLYMERS
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SULFONIC ACID ESTERS
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
ACRYLAMIDE
AMIDES
COPOLYMERS
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
FOSSIL FUELS
FUELS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
POLYMERS
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SULFONIC ACID ESTERS
WELL STIMULATION
WELLS