Movable heaters for treating subsurface hydrocarbon containing formations
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United States of America Patent
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-
Sep 4, 2012
Grant Date -
Apr 15, 2010
app pub date -
Oct 9, 2009
filing date -
Oct 13, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for treating a hydrocarbon containing formation includes providing heat to a first portion of the formation using a heater. The heating section of the heater is at least partially located in a substantially horizontal or inclined portion of a wellbore and is located in or proximate to a hydrocarbon containing layer of the formation. The heating section has a length that is at most 1/2 the length of the horizontal or inclined portion of the wellbore. At least a portion of the heating section in the wellbore is moved such that heat is provided to a second portion of the formation. The second portion is horizontally displaced from the first portion of the formation.
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