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U.S. Department of Energy
Office of Scientific and Technical Information

Method for catalytically heating wellbores

Patent ·
OSTI ID:5377168
A catalytic heater is used in supplying heat to well bores and has a catalytic surface open to the well bore for contacting and causing the reaction of a fuel mixture. The preferable catalytic material is platinum supported on a matrix of asbestos, asbestos-burlap, ceramic or other noncombustible material. Air and fuel gas is injected into the well bore to contact the catalyst. Initiation of a catalytic reaction is brought about by use of a fuel gas containing hydrogen which will spontaneously react with air at standard conditions in the presence of the catalyst. Once the hydrogen-air reaction reaches the reaction temperature of a hydrocarbon fuel gas and air, hydrogen injection is terminated. A carrier fluid may be used to transport the heat of reaction of a formation or other appropriate location. (10 claims)
Assignee:
Sun Oil Co.
Patent Number(s):
US 3712375
OSTI ID:
5377168
Country of Publication:
United States
Language:
English