Wells – Processes – Distinct – separate injection and producing wells
Reexamination Certificate
2005-05-10
2005-05-10
Kreck, John (Department: 3673)
Wells
Processes
Distinct, separate injection and producing wells
C166S275000, C166S400000, C166S294000
Reexamination Certificate
active
06889766
ABSTRACT:
A method for recovering oil from a reservoir is provided. This method comprises passing a swelling agent into a permeable zone of the reservoir that allows fluid to flow between an injection well and a producing well. An aqueous solution is passed into the reservoir to contact the swelling agent, thereby causing the swelling agent to swell and substantially block the permeable zone. One or more injectants are passed into the reservoir to remove oil therefrom. The swelling agent inhibits the injectants from passing through the permeable zone, ensuring that the injectants pass through the areas of the reservoir containing oil.
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Boatman Charles L.
Creel Prentice G.
Dalrymple Eldon Dwyann
McDonald Sam W.
Tate Richard H.
Carroll Rodney B.
Halliburton Energy Service,s Inc.
Kent Robert A.
Kreck John
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