Heat injection process and apparatus

Details Heat injection process and apparatus Heat injection process and apparatus

1993-12-20

1995-04-11

Novosad, Stephen J.

Wells

Processes

Heating, cooling or insulating

166 59, 166 60, E21B 3602, E21B 4324

Patent

active

054049520

ABSTRACT:
A method for heat injection into a subterranean formation is provided. The method utilizes flameless combustion and a gas fired heater having an electrical heated surface for ignition of the gas. The absence of a flame eliminates the flame as a radiant heat source and results in a more even temperature distribution throughout the length of the burner. Flameless combustion is accomplished by preheating the fuel and the combustion air to a temperature above the autoignition temperature of the mixture. Preheating hydrocarbon fuel requires the inclusion of a carbon formation suppressant such as carbon dioxide or steam to prevent carbon formation.

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