Method using overbased branched-chain alkylaromatic sulfonates as waterflood additives

Patent · Fri Oct 11 04:00:00 EDT 1974

OSTI ID:7269909

Kerfoot, O C; Clark, C R; Kennedy, C D

A process is described for recovering hydrocarbons from a petroliferous formation, comprising: injecting into said formation an effective amount of an aqueous mixture containing from about 0.5 to about 25 weight percent of an overbased waterflood additive; and recovering displaced hydrocarbons from said formation. The waterflood additive consists essentially of a base component selected from the group consisting of NaOH, KOH, LiOH, Na/sub 2/CO/sub 3/, NaHCO/sub 3/, NH/sub 4/OH, K/sub 2/CO/sub 3/ and mixtures thereof and a branched-chain alkylaromatic alkylate sulfonate. Preparation method for the alkylaromatic sulfonates is given.

• Assignee: Continental Oil Co.
• Patent Number(s): US 3933201
• OSTI ID: 7269909
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADDITIVES
ALKALI METAL COMPOUNDS
AMMONIUM COMPOUNDS
AMMONIUM HYDROXIDES
CARBON COMPOUNDS
CARBONATES
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
LITHIUM COMPOUNDS
LITHIUM HYDROXIDES
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM SULFONATES
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
SODIUM CARBONATES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SULFONATES
SULFONIC ACID ESTERS
WATERFLOODING
WELL STIMULATION
WELLS