Grouped exposed metal heaters
A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.
Shell Oil Company
E E C E E Y E
E21B E21B C07C E21B E21B Y10T E21B
inventional inventional inventional inventional inventional additional inventional
Harold J. Chia-Fu Ronnie Wade Allan James William George Stanley Leroy Peter Terry Paul Taylor
Vinegar Hsu Watkins Samuel Coit Mason Griffin Hamilton