Oil recovery by waterflooding employing a biopolymer-surfactant system
Patent
·
OSTI ID:7311793
A process is described for the recovery of oil from subterranean oil reservoirs by waterflooding employing a multicomponent anionic-nonionic surfactant system in combination with a Xanthomonas polysaccharide thickening agent. The surfactant system and polysaccharide provide for an enhanced thickening action in the injected aqueous liquid at relatively low shear rates. The anionic surfactant employed is an amide-linked sulfonate and the nonionic component is a polyethylene oxide type surfactant. 11 claims, 3 figures.
- Assignee:
- Mobil Oil Corp.
- Patent Number(s):
- US 4008766
- OSTI ID:
- 7311793
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CARBOHYDRATES
ENHANCED RECOVERY
FLUID INJECTION
GEOLOGIC DEPOSITS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL FIELDS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROLEUM DEPOSITS
POLYETHYLENE GLYCOLS
POLYMERS
POLYSACCHARIDES
RESOURCES
SACCHARIDES
SULFONATES
SURFACTANTS
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
CARBOHYDRATES
ENHANCED RECOVERY
FLUID INJECTION
GEOLOGIC DEPOSITS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL FIELDS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROLEUM DEPOSITS
POLYETHYLENE GLYCOLS
POLYMERS
POLYSACCHARIDES
RESOURCES
SACCHARIDES
SULFONATES
SURFACTANTS
WELL STIMULATION
WELLS