Patent ID: 11879299
Assignee: G&H DIVERSIFIED MANUFACTURING LP
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A dissolvable barrier assembly deployable with a casing string in a wellbore, the dissolvable barrier comprising:
a holder configured to couple to the casing string in a generally transverse orientation and defining a central aperture; and
a barrier positioned in the central aperture of the holder and configured to prevent the communication of fluid across the barrier whereby an uphole chamber within the casing string extending uphole from the barrier and containing an uphole fluid is hydraulically isolated from a downhole chamber within the casing string extending downhole from the barrier;
wherein the barrier comprises an outer surface including an uphole surface defining an uphole end and a downhole surface defining a downhole end opposite the uphole end, wherein at least a portion of the uphole surface is configured to corrode when in contact with the uphole fluid at a first corrosion rate and also wherein at least a portion of the downhole surface is configured to corrode when in contact with the uphole fluid at a second corrosion rate that is greater than the first corrosion rate;
wherein the holder comprises an exterior having a first portion and a second portion each exposed to fluids in the casing string with the barrier coupled to the holder, wherein the second portion is configured to corrode at a greater rate than the first portion when the holder is in contact with the uphole fluid.