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

2006-12-18

2009-12-29

Neuder, William P (Department: 3672)

Wells

Processes

Cementing, plugging or consolidating

Reexamination Certificate

active

07637320

ABSTRACT:
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.

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