Waterflood employing nonionic surfactant and organic stabilizing agent

Patent · Mon Nov 11 23:00:00 EST 1968

OSTI ID:7093145

Abdo, M K

An aqueous flooding solution containing a nonionic surfactant (nonyl phenol oxyocta (ethoxy) ethanol), sodium chloride, and an organic stabilizing agent (2-ethylhexanol) was developed for enhanced oil recovery. The stabilizing agent is soluble in hydrocarbons. A core of Yates sand, Kermit field, Winkler County, Texas (41 percent porosity, 577 md specific permeability) was saturated with water, then flooded with Yates crude oil (4.4 cp viscosity). A waterflood recovered 62 percent OOIP. Yates crude was injected with the surfactant before flooding with the aqueous flooding solution described above. The aqueous flooding was then driven by water. A recovery of 92 percent OOIP was obtained.

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 3410342
• OSTI ID: 7093145
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALCOHOLS
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
ENHANCED RECOVERY
FLUID INJECTION
HALIDES
HALOGEN COMPOUNDS
HEXANOLS
HYDROXY COMPOUNDS
OIL WELLS
ORGANIC COMPOUNDS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SURFACTANTS
WATERFLOODING
WELLS