Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 19, 2009
Patent Application Number
11788870
Date Filed
April 20, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
Wellheads for coupling to a heater located in a wellbore in a subsurface formation are described herein. At least one wellhead may include a heater located in a wellbore in a subsurface formation; and a wellhead coupled to the heater. The wellhead may be configured to electrically couple the heater to one or more surface electrical components. The wellhead may include at least one non-ferromagnetic material such that ferromagnetic effects are inhibited in the wellhead. Systems and methods for using such wellheads for treating a subsurface formation are described herein.
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