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Grouped exposed metal heaters

United States Patent

July 31, 2012
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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.
Vinegar; Harold J. (Bellaire, TX), Coit; William George (Bellaire, TX), Griffin; Peter Terry (Brixham, GB), Hamilton; Paul Taylor (Houston, TX), Hsu; Chia-Fu (Granada Hills, CA), Mason; Stanley Leroy (Allen, TX), Samuel; Allan James (Kular Lumpar, ML), Watkins; Ronnie Wade (Cypress, TX)
Shell Oil Company (Houston, TX)
12/ 893,642
September 29, 2010
GOVERNMENT INTEREST The Government may have 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.