Downhole tools containing ductile cementing materials

Patent metadata

Field	Value
Publication number	US-2018073325-A1
Application number	US-201615262643-A
Country	US
Kind code	A1
Filing date	Sep 12, 2016
Priority date	Sep 12, 2016
Publication date	Mar 15, 2018
Grant date	—

Abstract

A downhole tool for controlling the flow of a fluid in a wellbore includes a component that comprises: a cementitious material; an aggregate; and a ductility modifying agent comprising one or more of the following: an ionomer; a functionalized filler; the functionalized filler comprising one or more of the following: functionalized carbon; functionalized clay; functionalized silica; functionalized alumina; functionalized zirconia; functionalized titanium dioxide; functionalized silsesquioxane; functionalized halloysite; or functionalized boron nitride; a metallic fiber; or a polymeric fiber.

First claim

1 . A component for a downhole tool comprising:
a cementitious material; an aggregate; and a ductility modifying agent comprising one or more of the following: an ionomer; a functionalized filler; the functionalized filler comprising one or more of the following: functionalized carbon; functionalized clay; functionalized silica; functionalized alumina; functionalized zirconia; functionalized titanium dioxide; functionalized silsesquioxane; functionalized halloysite; or functionalized boron nitride; a metallic fiber; or a polymeric fiber.

2 . The component of claim 1 , wherein the component is one or more of the following: a frustoconical member; a bottom sub; a casing; a liner; a casing shoe; a mandrel of a packer; a plug; a sandscreen; or a centralizer.

3 . A downhole tool for controlling the flow of a fluid in a wellbore, the downhole tool including a component that comprises:
a cementitious material; an aggregate; and a ductility modifying agent comprising one or more of the following: an ionomer; a functionalized filler; the functionalized filler comprising one or more of the following: functionalized carbon; functionalized clay; functionalized silica; functionalized alumina; functionalized zirconia; functionalized titanium dioxide; functionalized silsesquioxane; functionalized halloysite; or functionalized boron nitride; a metallic fiber; or a polymeric fiber.

4 . The downhole tool of claim 3 , wherein the ionomer, the functionalized filler, or both the ionomer and the functionalized filler are crosslinked with a metal ion in the component.

5 . The downhole tool of claim 3 , wherein the metal ion comprises one or more of the following: magnesium ions; calcium ions; strontium ions; barium ions; radium ions; zinc ions; cadmium ions; aluminum ions; gallium ions; indium ions; thallium ions; titanium ions; or zirconium ions.

6 . The downhole tool of claim 3 , wherein the metallic fiber comprises steel fiber or iron fiber.

7 . The downhole tool of claim 3 , wherein the polymeric fiber comprises one or more of the following: polyvinyl alcohol fiber; polyethylene fiber; polypropylene fiber; polyethylene glycol fibers; or poly(ethylene glycol)-poly(ester-carbonate) fibers.

8 . The downhole tool of claim 3 , wherein the ionomer comprises a polymer backbone formed from one or more of the following monomers: an acid anhydride based monomer; an ethylenically unsaturated sulfonic acid; an ethylenically unsaturated phosphoric acid; an ethylenically unsaturated carboxylic acid; a monoester of an ethylenically unsaturated dicarboxylic acid; ethylene; propylene; butylene; butadiene; styrene; vinyl acetate; or (meth)acrylate; and wherein the ionomer comprises one or more of the following functional groups: a sulfonate group, a phosphonate group, a carboxylate group, a carboxyl group, a sulfonic acid group, or a phosphonic acid group.

9 . The downhole tool of claim 3 , wherein the ductility modifying agent comprises both the functionalized filler and the ionomer.

10 . The downhole tool of claim 3 , wherein the functionalized filler has one or more of the following functional groups: a sulfonate group, a phosphonate group, a carboxylate group, a carboxyl group, a sulfonic acid group, or a phosphonic acid group.

11 . The downhole tool of claim 3 , wherein the cementitious material comprises one or more of the following: Portland cement; pozzolan cement; gypsum cement; high alumina content cement; silica cement; or high alkalinity cement.

12 . The downhole tool of claim 3 , wherein the component further comprises one or more of the following: wollastonite; silica flour; fly ash; calcium carbonate; barite; hematite; ilemite; siderite; hydroxyapatite; fluorapatite; or chlorapatite.

13 . The downhole tool of claim 3 , wherein the component comprises about 0.1 wt. % to about 10 wt. % of the ductility modifying agent based on the total weight of the component.

14 . The downhole tool of claim 3 , wherein the component comprises:
about 0.5 to about 12 wt. % of the functionalized filler; about 0.5 to about 12 wt. % of the ionomer; about 15 to about 50 wt. % of the cementitious material; and about 20 to about 60 wt % of the aggregate, each based on the total weight of the component.

15 . The downhole tool of claim 3 , wherein the component comprises:
about 0.1 to about 8 wt. % of the metallic fiber; about 15 to about 50 wt. % of the cementitious material; and about 20 to about 60 wt % of the aggregate, each based on the total weight of the component.

16 . The downhole tool of claim 3 , wherein the component comprises:
about 1 to about 10 wt. % of the polymeric fiber; about 15 to about 50 wt. % of the cementitious material; and about 20 to about 60 wt % of the aggregate, each based on the total weight of the component.

17 . The downhole tool of claim 3 , further comprising a seal member adjacent the component.

18 . The downhole tool of claim 3 , wherein the downhole tool is a frac plug or a bridge plug.

19 . A downhole tool for controlling the flow of a fluid in a wellbore, the tool comprising:
an annular body having a flow passage therethrough; a frustoconical member disposed about the annular body; a seal member carried on the annular body and configured to engage a portion of the frustoconical member; and a bottom sub disposed about the annular body; wherein at least one of the frustoconical member and the bottom sub comprise:
a cementitious material;
an aggregate; and
a ductility modifying agent comprising one or more of the following: an ionomer; a functionalized filler; the functionalized filler comprising one or more of the following: functionalized carbon; functionalized clay; functionalized silica; functionalized alumina; functionalized zirconia; functionalized titanium dioxide; functionalized silsesquioxane; functionalized halloysite; or functionalized boron nitride; a metallic fiber; or a polymeric fiber.

20 . The downhole tool of claim 19 , further comprises a slip segment disposed about the annular body intermediate of the seal member and the bottom sub.

21 . The downhole tool of claim 19 , further comprising a abutment member adjacent the seal member.

22 . The downhole tool of claim 19 , wherein at least one of the frustoconical member and the bottom sub comprise, based on the total weight of the frustoconical member or the bottom sub:
about 0.5 to about 12 wt. % of the functionalized filler; about 0.5 to about 12 wt. % of the ionomer; about 15 to about 50 wt. % of the cementitious material; and about 20 to about 60 wt. % of the aggregate.

23 . The downhole tool of claim 19 , wherein the at least one of the frustoconical member and the bottom sub comprise, based on the total weight of the frustoconical member or the bottom sub:
about 0.1 to about 8 wt. % of the metallic fiber; about 15 to about 50 wt. % of the cementitious material; and about 20 to about 60 wt. % of the aggregate.

24 . The downhole tool of claim 19 , wherein at least one of the frustoconical member and the bottom sub comprise, based on the total weight of the frustoconical member or the bottom sub:
about 1 to about 10 wt. % of the polymeric fiber; about 15 to about 50 wt. % of the cementitious material; and about 20 to about 60 wt. % of the aggregate.

25 . The downhole tool of claim 3 , wherein the component is one or more of the following: a frustoconical member; a bottom su

Assignees

• Dolog Rostyslav
• Mazyar Oleg A
• Perez Juan Carlos Flores
• Khabashesku Valery N
• Baker Hughes Inc

Inventors

• Dolog Rostyslav
• Mazyar Oleg A
• Perez Juan Carlos Flores
• Khabashesku Valery N

Classifications

• E21B33/12 Primary

  Packers; Plugs (used for cementing E21B33/134, E21B33/16) · CPC title

• C04B28/18

  containing mixtures of the silica-lime type · CPC title

• C04B28/14

  containing calcium sulfate cements {(gypsum-paper plates E04C)} · CPC title

• C04B28/06

  Aluminous cements (monolithic refractories or refractory mortars C04B35/66) · CPC title

• C04B28/04

  Portland cements · CPC title