05126037 is referenced by 264 patents and cites 14 patents.

A separate heat source, such an a skin effect heater, is added to a subterranean heat exchanger and oxygen combustion device for upgrading viscous crude oil feeds. An insulated wire is integrated with combustion oxygen supply piping to form the skin effect heater operating in conjunction with the heat exchanger. The separately controlled heater output allows a reduction of the heat from the combustion device reduced quantities of combustion products. The improvement down-sizes or eliminates excess combustion product removal facilitates and also preheats the oxygen supply. The skin-effect heater and heat exchanger combination adds heat gradually and increases feed residence time at the desired upgrading temperature and pressure conditions. Alternative embodiments can be used to treat heavy crudes within a producing well.

Title
Geopreater heating method and apparatus
Application Number
7/518784
Publication Number
5126037
Application Date
May 4, 1990
Publication Date
June 30, 1992
Inventor
William E Showalter
Seal Beach
CA, US
Agent
William O Jacobson
Gregory F Wirzbicki
Assignee
Union Oil Company of California
CA, US
IPC
C10G 71/00
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