Method for forming an automatic burner for in situ combustion for enhanced thermal recovery of hydrocarbons from a well
Patent
·
OSTI ID:6470330
A method for assembling an ignition system for in situ combustion operation to recover petroleum from a well in a subterranean reservoir, and an ignition system for an elongated combustion chamber suspended from a hollow electrical cable and which cable supplies both electrical means and fuel gas to the chamber. Air inlet ducts in the walls of the air inlet cylinder receive air from the annular space between the hollow cable and the wellbore tubing. An electrical ignitor is temporarily energized automatically or responsive to a thermocouple detecting no burning in the combustion chamber to ignite the fuel-air mixture in the combustion chamber. The ignitor is responsive to the thermocouple detecting burning in the combustion chamber for extinguishing the ignitor. The thermocouple is thus responsive to a flameout for re-energizing the ignitor either manually or automatically such that burner operation is interrupted only momentarily. This new method includes further the steps of electrically connecting a second thermocouple to a limit set means and forming it responsive to the thermocouple for causing the flow of additional secondary air to be automatically increased to cool the electronics portion of the burner if the temperature therein goes beyond safe limits.
- Assignee:
- Texaco Inc
- Patent Number(s):
- US 4205725
- OSTI ID:
- 6470330
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400 -- Petroleum-- Processing
025000* -- Petroleum-- Combustion
CABLES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
CONDUCTOR DEVICES
DESIGN
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ENHANCED RECOVERY
EQUIPMENT
IGNITION SYSTEMS
IN-SITU COMBUSTION
IN-SITU PROCESSING
MEASURING INSTRUMENTS
OIL WELLS
OXIDATION
PROCESSING
RECOVERY
THERMAL RECOVERY
THERMOCHEMICAL PROCESSES
THERMOCOUPLES
WELLS
020400 -- Petroleum-- Processing
025000* -- Petroleum-- Combustion
CABLES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
CONDUCTOR DEVICES
DESIGN
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ENHANCED RECOVERY
EQUIPMENT
IGNITION SYSTEMS
IN-SITU COMBUSTION
IN-SITU PROCESSING
MEASURING INSTRUMENTS
OIL WELLS
OXIDATION
PROCESSING
RECOVERY
THERMAL RECOVERY
THERMOCHEMICAL PROCESSES
THERMOCOUPLES
WELLS