Wells – Processes – Heating – cooling or insulating
Patent
1995-09-28
1997-12-23
Tsay, Frank S.
Wells
Processes
Heating, cooling or insulating
166 59, E21B 3602
Patent
active
RE0356964
ABSTRACT:
A method for heat injection into a subterranean formation is provided. The method utilizes flameless combustion. 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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Translation of the claims of Swedish Patent specification No. 123.136 filed by Svenska Skifferoljeaktiebolaget, Orebro, Sweden.
Christensen Del S.
Shell Oil Company
Tsay Frank S.
LandOfFree
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