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Alternate energy source usage methods for in situ heat treatment processes

United States Patent

8,857,506
October 14, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for providing power to one or more subsurface heaters is described herein. The method may include monitoring one or more operating parameters of the heaters, the intermittent power source, and a transformer coupled to the intermittent power source that transforms power from the intermittent power source to power with appropriate operating parameters for the heaters; and controlling the power output of the transformer so that a constant voltage is provided to the heaters regardless of the load of the heaters and the power output provided by the intermittent power source.
Stone, Jr.; Francis Marion (Cut-N-Shoot, TX), Goodwin; Charles R. (League City, TX), Richard, Jr.; James E. (Kingwood, TX)
Shell Oil Company (Houston, TX)
13/ 902,129
20130333878
May 24, 2013
GOVERNMENT INTEREST The Government has certain rights in this invention pursuant to Agreement No. ERD-05-2516 between UT-Battelle, LLC, operating under prime contract No. DE-ACO5-00OR22725 for the US Department of Energy and Shell Exploration and Production Company. The Government has certain rights in the invention pursuant to Agreement No. SD 10634 between Sandia National Laboratories and Shell Exploration and Production Company.