Differential filters for stopping water during oil production

Details Differential filters for stopping water during oil production Differential filters for stopping water during oil production

B - Operations, Transporting

01

D

B01D 39/16 (2006.01) B01D 39/20 (2006.01)

Patent

CA 2671944

A differential filter includes a swellable polymer that swells after contacting water such that permeability of the differential filter is reduced. A method of controlling water production in a well includes deploying a differential filter downhole; and performing a downhole operation, wherein the differential filter comprises a swellable polymer that swells after contacting water such that permeability of the differential filter is reduced.

L'invention porte sur un filtre différentiel comprenant un polymère qui gonfle lors de son contact avec de l'eau, ce qui en réduit la perméabilité. L'invention porte également sur une méthode de blocage de la production d'eau dans un puits par utilisation d'un filtre différentiel de fond de puits; et sur l'exécution d'une opération de fond de puits.

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