Oil recovery process using thickened aqueous flooding liquids

Patent · Tue Oct 06 04:00:00 EDT 1970

OSTI ID:5394361

Williams, S A

A process is described for recovering oil from a reservoir which utilizes a thickened flooding liquid containing an ionic polysaccharide, preferably polysaccharide B-1459. In the process, a sacrificial agent is injected into the reservoir to cover substantially all of the adsorption sites within the reservoir to substantially prevent the ionic polysaccharide from absorbing out of the flooding liquid. The sacrificial agent consists of a water-soluble carbonate and/or a water-soluble, inorganic polyphosphate and can be injected prior to the flooding liquid and/or contained in it. (11 claims)

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 3532166
• OSTI ID: 5394361
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ABSORPTION
ADDITIVES
ADSORPTION
AQUEOUS SOLUTIONS
CARBOHYDRATES
CARBON COMPOUNDS
CARBONATES
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
INORGANIC COMPOUNDS
MIXTURES
OIL WELLS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PHOSPHATES
PHOSPHORUS COMPOUNDS
POLYSACCHARIDES
RECOVERY
SACCHARIDES
SOLUBILITY
SOLUTIONS
SORPTION
VISCOSITY
WATERFLOODING
WELLS