In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
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United States of America Patent
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Nov 15, 2005
Grant Date -
Jun 5, 2003
app pub date -
Apr 24, 2002
filing date -
Apr 24, 2001
priority date (Note) -
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Abstract
A method for treating a relatively permeable formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected section of the formation. The transferred heat may pyrolyze at least some hydrocarbons within the selected section. A temperature proximate a selected portion of a heater well may be selectively limited to inhibit coke formation at or near the selected portion. A mixture of at least some hydrocarbons may be produced through the selected portion of the heater well.
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