Lignin phenol/lignin/amine surfactant system

Patent · Tue Jul 30 04:00:00 EDT 1991

OSTI ID:5678962

Kieke, D E; Naae, D G

This patent describes a method of recovering hydrocarbons from an underground hydrocarbon formation penetrated by at least one injection well and at least one production well. It comprises injecting into the formation through an injection well about 0.05 to about 1.0 pore volumes of an aqueous surfactant slug comprising about 0.1% to about 10% by weight surfactant system; the surfactant system comprised of a lignin phenol surfactant, a lignin, a primary amine having about 8 to about 20 carbon atoms, and a solubilizer, the lignin phenol surfactant produced by placing lignin in contact with water, converting the lignin into low molecular weight lignin phenols by reducing the lignin in the presence of a reducing agent of carbon monoxide of hydrogen creating a reduction reaction mixture comprising oil soluble lignin phenols, injecting into the formation through the injection well a drive fluid to push the surfactant slug towards a production well; and recovering hydrocarbons at the production well.

• Assignee: Texaco Inc., White Plains, NY (USA)
• Patent Number(s): US 5035288; A
• Application Number: PPN: US 7-539506
• OSTI ID: 5678962
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
AMINES
AROMATICS
CARBOHYDRATES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
DISPLACEMENT FLUIDS
ELEMENTS
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
GEOLOGIC FORMATIONS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INJECTION WELLS
LIGNIN
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHENOLS
POLYSACCHARIDES
RECOVERY
SACCHARIDES
STIMULATION
SURFACTANTS
WATER
WELL STIMULATION
WELLS