Petroleum recovery materials and process

Patent · Tue Jan 31 04:00:00 EST 1967

OSTI ID:6353446

Gogarty, W B; Olson, R W

A petroleum recovery process uses micellar solutions made from liquefied petroleum gas (LPG). During the process, microemulsions utilizing LPG in the external phase are injected through at least one injection well into the oil-bearing formations. The microemulsions are driven toward at least one recovery well and crude petroleum is recovered through the recovery well. The LPG in the micellar system may be propane or butane. Corrosion inhibitors can be used in sour fields, and bactericides can be used where necessary. The microemulsions used contain up to about 10-20% water and about 8% surfactant. (4 claims)

• Assignee: Marathon Oil Co.
• Patent Number(s): US 3301325
• OSTI ID: 6353446
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKANES
BUTANE
CHEMICAL REACTIONS
COLLOIDS
CORROSION
CORROSION INHIBITORS
DISPERSIONS
EMULSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GERMICIDES
HYDROCARBONS
LIQUEFIED PETROLEUM GASES
LIQUIDS
MICELLAR SYSTEMS
MICROEMULSION FLOODING
MICROEMULSIONS
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS LIQUIDS
OIL WELLS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM PRODUCTS
PROPANE
RECOVERY
STIMULATION
SURFACTANTS
WELL STIMULATION
WELLS