Lignosulfonates as sacrificial agents in oil recovery processes

Patent · Tue Feb 08 04:00:00 EST 1977

OSTI ID:6621981

Kalfoglou, G

A process for producing petroleum from subterranean formations is obtained by driving a fluid from an injection well to a production well. The process involves injecting via the injection well into the formation an aqueous solution of lignosulfonate salt as a sacrificial agent to inhibit the deposition of surfactant contained in a micellar dispersion (microemulsion) on the reservoir matrix. Normally, the process would be conducted by first injecting the lignosulfonates into the formation through the injection well and following them with a micellar dispersion which may contain lignosulfonates. The micellar dispersion would then be followed by a drive fluid, such as water, to push the dispersion to the production well. (9 claims)

• Assignee: Texaco Inc
• Patent Number(s): US 4006779
• OSTI ID: 6621981
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADDITIVES
ENHANCED RECOVERY
FLUID INJECTION
INJECTION WELLS
MICELLAR SYSTEMS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RECOVERY
STIMULATION
SULFONATES
WELL STIMULATION
WELLS