Water-wetting treatment for reducing water coning in an oil...

Details Water-wetting treatment for reducing water coning in an oil... Water-wetting treatment for reducing water coning in an oil...

E - Fixed Constructions

21

B

31/14

E21B 43/22 (2006.01) E21B 43/25 (2006.01) E21B 43/32 (2006.01)

Patent

CA 2018951

An oil well producing water is treated to reduce the water cut by injecting through the well into the reservoir a composite slug comprising: - a relatively small volume of water-wetting agent in liquid form, said agent being adapted to modify the reservoir matrix to increase its water-wetted character; and - a relatively large volume of non-condensable gas for further laterally extending the matrix surface modification.

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