US2012031611A1PendingUtilityA1
Erosion Migration Arrangement, Erodable Member and Method of Migrating a Slurry Flow Path
Est. expiryAug 9, 2030(~4.1 yrs left)· nominal 20-yr term from priority
E21B 43/04E21B 17/1085
39
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Claims
Abstract
An erosion migration arrangement includes a tubular having a window therein. A body positioned within a portion of the window is configured to sacrificially erode in response to a slurry flowing through the window to thereby migrate a location of impact on a member positioned downstream of the window.
Claims
exact text as granted — not AI-modified1 . An erosion migration arrangement comprising:
a tubular having a window therein; and a body positioned within a portion of the window being configured to sacrificially erode in response to a slurry flowing through the window to thereby migrate a location of impact on a member positioned downstream of the window.
2 . The erosion migration arrangement of claim 1 , wherein the tubular is configured to transport the slurry during a gravel packing operation.
3 . The erosion migration arrangement of claim 1 , wherein the body is positioned on a downstream side of the window.
4 . The erosion migration arrangement of claim 1 , wherein the body is configured to erode more quickly than the tubular.
5 . The erosion migration arrangement of claim 1 , wherein the body is made of a material that reacts with an environment anticipated to be encountered during flow of the slurry.
6 . The erosion migration arrangement of claim 5 , wherein reaction of the body includes disintegration thereof.
7 . The erosion migration arrangement of claim 1 , wherein the body has a shell covering a core and the shell is more resistant to degradation than the core.
8 . The erosion migration arrangement of claim 7 , wherein the shell prevents the core from disintegration until the shell is fractured.
9 . The erosion migration arrangement of claim 7 , wherein disintegration of the core quickens erosion thereof.
10 . The erosion migration arrangement of claim 7 , wherein the core is made of a reactive and soft metal such as Mg, Al, Zn, Sn or alloys including at least one of the foregoing.
11 . The erosion migration arrangement of claim 7 , wherein the core is made of a reactive metal matrix reinforced by micro or nano particulates selected from the group consisting of ceramics, metallic, intermetallic, oxides, carbides and nitrides.
12 . The erosion migration arrangement of claim 7 , wherein the shell is made of a material that is selected from the group consisting of ceramic, metallic, intermetallic, oxides carbides, and nitride.
13 . The erosion migration arrangement of claim 7 , wherein the slurry includes gravel and a fluid.
14 . A method of migrating a slurry flow path comprising:
constructing at least one portion of a border of a window of a tubular from an degraded material; flowing slurry through the window; eroding the at least one portion at a faster rate than a remaining border of the window; and migrating a flow path of the slurry.
15 . The method of migrating a slurry flow path of claim 13 , wherein the at least one portion is a downstream portion of the border.
16 . The method of migrating a slurry flow path of claim 13 , further comprising disintegrating the at least one portion.
17 . The method of migrating a slurry flow path of claim 13 , further comprising constructing the at least one portion of at least one material configured to disintegrate in a target environment.
18 . The method of migrating a slurry flow path of claim 13 , further comprising constructing the at least one portion of a shell material and a core material.
19 . The method of migrating a slurry flow path of claim 17 , wherein the core material disintegrates more easily than the shell material.
20 . A sacrificially erodable member comprising;
a core configured to easily erode in a target environment; and a shell in operable communication with the core configured to protect the core from eroding until fracture thereof.
21 . The sacrificially erodable member of claim 19 , wherein the core is made of a material that more easily erodes than a material that the shell is made of
22 . The sacrificially erodable member of claim 19 , wherein the core is made of a material that disintegrates in a target environment.Cited by (0)
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