Oil recovery by surfactant waterflooding

Patent · Tue Aug 08 00:00:00 EDT 1978

OSTI ID:6071377

Dickert, Jr, J J; Stournas, S

A method is described for recovering oil from a subterranean oil reservoir by waterflooding in which at least a portion of the injected water contains an anionic surfactant comprising a hydroxyalkylaminoalkyl sulfonate. The hydroxy group is in the 4- or 5-position with respect to the sulfonate group. This surfactant is stable in the presence of high concentrations of divalent metal ions. Thus, this process is applicable in those situations in which the reservoir waters and the waters employed in formulating the flooding medium exhibit high divalent metal ion concentrations. 4 claims.

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 4105570
• OSTI ID: 6071377
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CHEMICAL COMPOSITION
ELEMENTS
FLUID INJECTION
FLUIDS
METALS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RESERVOIR FLUIDS
STABILITY
STIMULATION
SULFONATES
SURFACTANTS
WATERFLOODING
WELL STIMULATION
WELLS