Method of controlling scale in oil recovery operations

Patent · Tue Aug 11 00:00:00 EDT 1981

OSTI ID:6261778

Krajicek, R W

Disclosed is a method of producing highly viscous minerals from a subterranean formation by injection of an acidic, thermal vapor stream without substantial scale buildup in downstream piping, pumps and well bore. The process comprises heating the formation by injection of heat, preferably in the form of a thermal vapor stream composed of combustion gases and steam and injecting an acidic compound simultaneously with the thermal vapor stream into the formation at a temperature above the dew point of the thermal vapor stream. The acidic, thermal vapor stream increases the solubility of metal ions in connate water and thus reduces scaling in the downstream equipment during the production of viscous hydrocarbons.

• Assignee: Carmel Energy Inc
• Patent Number(s): US 4282929
• OSTI ID: 6261778
• Resource Relation: Patent File Date: Filed date 30 Jul 1979
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM
ENHANCED RECOVERY
SCALING
CONTROL
ACIDIFICATION
AMMONIA
BOREHOLES
COMBUSTION PRODUCTS
GASES
IONS
METALS
PIPES
STEAM INJECTION
VISCOSITY
CAVITIES
CHARGED PARTICLES
ELEMENTS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDRIDES
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
RECOVERY
THERMAL RECOVERY
020300* - Petroleum- Drilling & Production