Process for secondary recovery

Patent · Tue Feb 14 00:00:00 EST 1984

OSTI ID:6841143

Hunter, W D

Hydrocarbons are recovered from a subterranean hydrocarbon-bearing formation penetrated by an injection well and a production well by displacing hydrocarbons toward the production well using a drive fluid such as water thickened with a copolymer of acrylamide and vinyl sulfonic acid or salts thereof or with a copolymer of acrylamide and styrene sulfonic acid or salts thereof as well as these same copolymers alkoxylated with an alkylene oxide. Optionally, the drive fluid can be saturated with carbon dioxide, nitrogen, natural gas or mixtures of these gases.

• Assignee: Texaco Development Corp.
• Patent Number(s): US 4431778
• OSTI ID: 6841143
• Resource Relation: Patent File Date: Filed date 29 Apr 1982; Other Information: PAT-APPL-372880
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DISPLACEMENT FLUIDS
CHEMICAL COMPOSITION
OIL WELLS
MICROEMULSION FLOODING
WATERFLOODING
ACRYLAMIDE
ALKENES
CARBON DIOXIDE
COPOLYMERS
DISSOLVED GASES
ENHANCED RECOVERY
EPOXIDES
HETEROCYCLIC OXYGEN COMPOUNDS
INJECTION WELLS
NATURAL GAS
NITROGEN
POLYAMIDES
SULFONIC ACIDS
VINYL MONOMERS
WATER
AMIDES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
ELEMENTS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
MISCIBLE-PHASE DISPLACEMENT
MONOMERS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
RECOVERY
SOLUTES
WELLS
020300* - Petroleum- Drilling & Production