Subsurface connection methods for subsurface heaters
A system for heating a subsurface formation is described. The system includes a first elongated heater in a first opening in the formation. The first elongated heater includes an exposed metal section in a portion of the first opening. The portion is below a layer of the formation to be heated. The exposed metal section is exposed to the formation. A second elongated heater is in a second opening in the formation. The second opening connects to the first opening at or near the portion of the first opening below the layer to be heated. At least a portion of an exposed metal section of the second elongated heater is electrically coupled to at least a portion of the exposed metal section of the first elongated heater in the portion of the first opening below the layer to be heated.
Shell Oil Company
C E E E E E Y
C07C E21B E21B E21B E21B E21B Y10T
inventional inventional inventional inventional inventional inventional additional
Frederick Gordon Thomas Joseph Ronald Marshall Stanley Leroy Dong Sub George Leo Harold J.
Carl, Jr. Keltner Bass Mason Kim Stegemeier Vinegar