Wells – Processes – Distinct – separate injection and producing wells
Reexamination Certificate
2007-10-19
2010-06-08
Suchfield, George (Department: 3676)
Wells
Processes
Distinct, separate injection and producing wells
C166S245000, C166S256000, C166S272100, C166S302000
Reexamination Certificate
active
07730947
ABSTRACT:
Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons are produced from the portion.
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Beer Gary Lee
Stegemeier George Leo
Zhang Etuan
Shell Oil Company
Suchfield George
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