Stage tool

Patent metadata

Field	Value
Publication number	US-2023258054-A1
Application number	US-202118006537-A
Country	US
Kind code	A1
Filing date	Jul 29, 2021
Priority date	Jul 30, 2020
Publication date	Aug 17, 2023
Grant date	—

Abstract

A downhole tool includes a body defining an axial bore and one or more radial ports. The downhole tool also includes a first sleeve positioned at least partially within the body. The first sleeve is configured to block fluid communication from the axial bore through the one or more radial ports when the downhole tool is in a first position. Fluid flow is permitted from the axial bore through the one or more radial ports when the downhole tool is in a second position. The downhole tool also includes a second sleeve positioned at least partially within the body. The second sleeve is configured to block fluid communication from the axial bore through the one or more radial ports when the downhole tool is in a third position. The downhole tool also includes a seat coupled to the second sleeve. The seat is configured to receive an impediment.

First claim

What is claimed is:

1 . A downhole tool, comprising:
a body defining an axial bore and one or more radial ports; a first sleeve positioned at least partially within the body, wherein the first sleeve is configured to block fluid communication from the axial bore through the one or more radial ports when the downhole tool is in a first position, and wherein fluid flow is permitted from the axial bore through the one or more radial ports when the downhole tool is in a second position; a second sleeve positioned at least partially within the body, wherein the second sleeve is configured to block fluid communication from the axial bore through the one or more radial ports when the downhole tool is in a third position; and a seat coupled to the second sleeve, wherein the seat is configured to receive an impediment.

2 . The downhole tool of claim 1 , wherein the body comprises a sub and a housing, wherein the first sleeve and the second sleeve are positioned at least partially in an annulus formed between the sub and the housing.

3 . The downhole tool of claim 2 , wherein the one or more radial ports comprise:
a sub port defined in the sub; and a housing port defined in the housing, wherein the sub port and the housing port are axially and circumferentially aligned with one another.

4 . The downhole tool of claim 1 , further comprising a shearable member configured to secure the first sleeve in place with respect to the body when the downhole tool is in the first position, wherein the first sleeve blocks fluid communication from the axial bore through the one or more radial ports when the shearable member secures the first sleeve in place, wherein the shearable member is configured to shear in response to the first sleeve being exposed to a predetermined pressure, and wherein the first sleeve shifts to permit fluid communication from the axial bore through the one or more radial ports at least partially in response to the shearable member shearing.

5 . The downhole tool of claim 4 , wherein the first sleeve comprises a retaining member, and wherein the first sleeve shifts until the retaining member becomes positioned at least partially within a recess in the body.

6 . The downhole tool of claim 1 , further comprising a shearable member configured to secure the second sleeve in place with respect to the body when the downhole tool is in the first and second positions, wherein the shearable member is configured to shear in response to the second sleeve being exposed to a predetermined pressure, and wherein the second sleeve shifts to block fluid communication from the axial bore through the one or more radial ports at least partially in response to the shearable member shearing.

7 . The downhole tool of claim 6 , wherein the second sleeve comprises a retaining member, wherein the second sleeve is configured to shift until the retaining member becomes positioned at least partially within a first recess in the body in response to a first predetermined pressure in the axial bore, and wherein the second sleeve is configured to shift again until the retaining member becomes positioned at least partially within a second recess in the body in response to a second predetermined pressure in the axial bore, wherein the second predetermined pressure is greater than the first predetermined pressure, and wherein the first and second recesses are axially offset from one another.

8 . The downhole tool of claim 7 , wherein the second sleeve blocks fluid communication from the axial bore through the one or more radial ports when the retaining member is positioned at least partially within the first recess and when the retaining member is positioned at least partially within the second recess.

9 . The downhole tool of claim 1 , further comprising a shearable member configured to couple the seat to the second sleeve, wherein the shearable member is configured to shear in response to the second sleeve, the seat, the impediment, or a combination thereof being exposed to a predetermined pressure, and wherein the seat and the impediment are configured to move out of the downhole tool at least partially in response to the shearable member shearing.

10 . The downhole tool of claim 1 , wherein the body comprises a first anti-rotation feature, wherein the second sleeve comprises a second anti-rotation feature, and wherein the first and second anti-rotation features are configured to engage one another to prevent relative rotation between the body and the second sleeve.

11 . A downhole tool, comprising:
a top sub; a bottom sub defining one or more bottom sub ports; a housing defining one or more housing ports; a first sleeve positioned radially between the bottom sub and the housing, wherein the first sleeve blocks fluid flow between the one or more bottom sub ports and the one or more housing ports when the downhole tool is in a first position; a second sleeve positioned radially between the bottom sub and the housing, wherein the first sleeve and the second sleeve permit fluid flow between the one or more bottom sub ports and the one or more housing ports when the downhole tool is in a second position, wherein fluid communicates through the axial bore, the one or more bottom sub ports, and the one or more housing ports, to an exterior of the housing when the downhole tool is in the second position, and wherein the second sleeve blocks fluid flow between the one or more bottom sub ports and the one or more housing ports when the downhole tool is in a third position; and a landing seat coupled to the second sleeve when the downhole tool is in the first position, the second position, and the third position, wherein the landing seat is configured to receive an impediment, and wherein the landing sleeve is configured to be decoupled from the second sleeve in response to pressure applied to the impediment.

12 . The downhole tool of claim 11 , wherein the housing is coupled to and positioned at least partially axially between the top sub and the bottom sub, wherein at least a portion of the housing is positioned radially outward from the bottom sub, wherein the one or more housing ports are aligned with the one or more bottom sub ports, wherein an axial bore extends through the top sub, the bottom sub, and the housing, wherein the downhole tool further comprises a rupture disk configured to block fluid flow from the axial bore into an annulus between the bottom sub and the housing when the downhole tool is in the first position, and wherein the rupture disk is configured to rupture at a predetermined pressure, thereby permitting fluid flow from the axial bore into the annulus.

13 . The downhole tool of claim 11 , further comprising:
a shearable member coupling the second sleeve to the top sub, the bottom sub, the housing, or a combination thereof, wherein the shearable member is configured to shear at least partially in response to the landing seat receiving the impediment, and wherein the downhole tool actuates from the second position into the third position at least partially in response to the shearable member shearing; and a ring coupled to the second sleeve, wherein the ring is configured to engage a first recess in the housing, the bottom sub, or both when the downhole tool is in the third position, wherein the ring is configured to engage a second recess in the housing, the bottom sub, or both when the downhole tool is in a fourth position, and wherein the first and second recesses are axially offset from one another.

14 . The downhole tool of claim 11 , further comprising a shearable member coupling the landing seat to the second sleeve whe

Assignees

• Innovex Downhole Solutions Inc

Inventors

• Rushing Anthony
• Smith Kevin
• Roger Greg

Classifications

• E21B33/16 Primary

  using plugs for isolating cement charge; Plugs therefor {(stage cementing E21B33/146; spacer compositions C09K8/424)} · CPC title

• E21B34/10

  operated by control fluid supplied from outside the borehole · CPC title

• E21B2200/06

  Sleeve valves · CPC title

• E21B33/14 Primary

  for cementing casings into boreholes · CPC title