Wellhead with non-ferromagnetic materials
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United States of America Patent
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May 19, 2009
Grant Date -
Dec 20, 2007
app pub date -
Apr 20, 2007
filing date -
Apr 21, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
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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