Downhole flow inhibition tool and method of unplugging a seat

Patent metadata

Field	Value
Publication number	US-10240419-B2
Application number	US-201314043425-A
Country	US
Kind code	B2
Filing date	Oct 1, 2013
Priority date	Dec 8, 2009
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A downhole flow inhibition tool includes at least a first component and a mating component at least a portion of one of the first component and the mating component is dissolvable in a target environment to reduce flow inhibition upon dissolution of the at least a portion.

First claim

The invention claimed is:

1. Downhole flow inhibition tool comprising at least a first component and a mating component at least a portion of one of the first component and the mating component being dissolvable in a target environment to reduce flow inhibition upon dissolution of the at least a portion of the one of the first component and the mating component, wherein the first component of the downhole tool is made of a powder metal compact including a plurality of substantially contiguous coated particles forming a substantially-continuous, cellular nanomatrix material.

2. The downhole flow inhibition tool of claim 1 , wherein the substantially-continuous, cellular nanomatrix material includes a plurality of dispersed particles comprising a particle core material that comprises Mg, Al, Zn or Mn, or a combination thereof, dispersed in the cellular nanomatrix; and
a solid-state bond layer extending throughout the cellular nanomatrix between the dispersed particles.

3. The downhole flow inhibition tool of claim 2 , wherein the particle core material comprises Mg—Zn, Mg—Al, Mg—Mn, or Mg—Zn—Y.

4. The downhole flow inhibition tool of claim 2 , wherein the dispersed particles further comprise a rare earth element.

5. The downhole flow inhibition tool of claim 1 , wherein the first component is a plug.

6. The downhole flow inhibition tool of claim 1 , wherein the first component includes a shell and a core.

7. The downhole flow inhibition tool of claim 6 , wherein the core is dissolvable.

8. The downhole flow inhibition tool of claim 1 , wherein the downhole flow inhibition tool is selected from the group consisting of frac plugs, bridge plugs, wiper plugs, shear out plugs, debris barriers, atmospheric chamber discs, swabbing element protectors, sealbore protectors, screen protectors, beaded screen protectors, screen basepipe plugs, drill in stim liner plugs, ICD plugs, flapper valves, gaslift valves, transmatic CEM™ plugs, float shoes, darts, diverter balls, shifting/setting balls, ball seats, sleeves, teleperf disks, direct connect disks, drill-in liner disks, fluid loss control flappers, shear pins or screws and cementing plugs.

9. A method of unplugging a seat, comprising:
dissolving at least a surface defined by a shell surrounding a core of a plug seated against the seat;
unseating the plug from the seat;
dimensioning the core to fit through the seat without necessarily dissolving the core;
passing the core through the seat; and
dissolving the core after it has passed through the seat.

Assignees

• Johnson Michael H
• Xu Zhiyue
• Baker Hughes A Ge Co Llc

Inventors

• Johnson Michael H
• Xu Zhiyue

Classifications

• B22F1/16 Primary

  Metallic particles coated with a non-metal (coated with lubricating or binding agents or with organic material B22F1/10) · CPC title

• B22F1/02

  Operations & Transport · mapped topic

• C22C1/0408

  Light metal alloys · CPC title

• E21B29/02 Primary

  by explosives or by thermal or chemical means {(freeing stuck objects by explosives E21B31/002)} · CPC title