04570715 is referenced by 305 patents and cites 9 patents.

Long intervals of subterranean earth formations are heated at high temperatures for long times with an electrical heater containing spoolable, steel sheathed, mineral insulated cables which have high electrical conductivities, enabling them to heat the earth formations at a substantially uniform rate of more than about 100 watts per foot at temperatures between about 600.degree. and 1000.degree. C., with a pattern of localized electrical resistances which are correlated with the heat conductivities of the earth formations and the heat stabilities of materials providing power and support for the heater.

Title
Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature
Application Number
6/597764
Publication Number
4570715
Application Date
April 6, 1984
Publication Date
February 18, 1986
Inventor
Cor F Van Egmond
Houston
TX, US
Peter Van Meurs
Houston
TX, US
Assignee
Shell Oil Company
TX, US
IPC
E21B 36/04
E21B 23/00
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