Cross-linked polyvinyl alcohols and oil reservoir permeability control therewith

Patent · Tue Jan 30 00:00:00 EST 1990

OSTI ID:7181291

Hoskin, D H; Shu, P

This patent describes an improved method of recovering oil under steam flooding conditions from an oil-bearing subterranean formation penetrated by an injection well and a production well, in which an aqueous fluid is injected into the formation through the injection well to displace oil to the production well. The improvement comprising employing, in at least a portion of the aqueous fluid injected into the formation, a cross-linked polymer obtained by cross-linking polyvinyl alcohol with a cross-linking agent which is a mixture of a phenolic component and an aldehyde or a mixture of a naphtholic component and an aldehyde.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4896723; A
• Application Number: PPN: US 7-369180A
• OSTI ID: 7181291
• Resource Relation: Patent File Date: 21 Jun 1989
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DISPLACEMENT FLUIDS
CHEMICAL COMPOSITION
OIL WELLS
WATERFLOODING
ALCOHOLS
ALDEHYDES
AQUEOUS SOLUTIONS
PETROLEUM
PHENOLS
POLYVINYLS
STEAM INJECTION
THERMAL RECOVERY
WELL STIMULATION
AROMATICS
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RECOVERY
SOLUTIONS
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production