Wells – Processes – Electric current or electrical wave energy through earth for...
Reexamination Certificate
2006-04-21
2009-08-18
Suchfield, George (Department: 3676)
Wells
Processes
Electric current or electrical wave energy through earth for...
C166S050000, C166S057000, C166S060000, C166S075120, C166S302000, C392S302000, C392S307000, C405S131000
Reexamination Certificate
active
07575052
ABSTRACT:
An in situ conversion system for producing hydrocarbons from a subsurface formation is described. The system includes a plurality of u-shaped wellbores in the formation. Piping is positioned in at least two of the u-shaped wellbores. A fluid circulation system is coupled to the piping. The fluid circulation system is configured to circulate hot heat transfer fluid through at least a portion of the piping to form at least one heated portion of the formation. An electrical power supply is configured to provide electrical current to at least a portion of the piping located below an overburden in the formation to resistively heat at least a portion of the piping. Heat transfers from the piping to the formation.
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Fowler Thomas David
Sandberg Chester Ledlie
Schoeber Willen Jan Antoon Henri
Vinegar Harold J.
Shell Oil Company
Suchfield George
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