Downhole tool with delay valve

Patent metadata

Field	Value
Publication number	US-12055009-B2
Application number	US-202217713493-A
Country	US
Kind code	B2
Filing date	Apr 5, 2022
Priority date	Apr 5, 2022
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

A downhole tool includes a housing defining an axial bore. The downhole tool also includes a piston positioned at least partially within the housing. The piston is configured to actuate from a first piston position into a second piston position at least partially in response to a pressure differential. The downhole tool also includes a locking mechanism positioned at least partially within the housing. The locking mechanism is configured to actuate from a first locking mechanism position into a second locking mechanism position at least partially in response to the pressure differential while the piston is in the second piston position. The downhole tool also includes a disk positioned at least partially within the housing. The disk prevents fluid flow through the axial bore. The disk is configured to break at least partially in response to the pressure differential while the locking mechanism is in the second locking mechanism position.

First claim

What is claimed is:

1. A downhole tool, comprising:
a housing defining:
an axial bore; and
an axial port that is substantially parallel to the axial bore and radially outward from the axial bore;

a valve positioned at least partially within the axial port, wherein the valve is configured to be exposed to a fluid in a wellbore annulus;
a piston positioned at least partially within the housing, wherein the piston is configured to actuate from a first piston position into a second piston position at least partially in response to a pressure differential;
a locking mechanism positioned at least partially within the housing, wherein the locking mechanism is configured to actuate from a first locking mechanism position into a second locking mechanism position at least partially in response to the pressure differential while the piston is in the second piston position; and
a disk positioned at least partially within the housing, wherein the disk prevents fluid flow through the axial bore, wherein the disk is configured to break at least partially in response to the pressure differential while the locking mechanism is in the second locking mechanism position, thereby permitting fluid flow through the axial bore.

2. The downhole tool of claim 1 , wherein the housing also defines:
a first radial port that provides a path of fluid communication between the axial bore and the axial port; and
a second radial port that is axially offset from the first radial port, wherein the second radial port provides a path of fluid communication between the axial port and an annulus in the housing.

3. The downhole tool of claim 2 , wherein the valve is configured to actuate into a first valve position that prevents fluid flow between the first and second radial ports in response to increasing a pressure of a fluid in the axial bore, and wherein the valve is configured to actuate into a second valve position that permits the fluid flow between the first and second radial ports in response to decreasing the pressure of the fluid in the axial bore.

4. The downhole tool of claim 2 , wherein the valve is between the first and second radial ports.

5. The downhole tool of claim 2 , wherein the piston is below the first and second radial ports.

6. The downhole tool of claim 2 , wherein the second radial port is unplugged when the downhole tool is in a wellbore.

7. The downhole tool of claim 1 , wherein the piston is configured to actuate in a downhole direction from the first piston position to the second piston position.

8. A downhole tool, comprising:
a housing defining an axial bore;
a piston positioned at least partially within the housing, wherein the piston is configured to actuate from a first piston position into a second piston position at least partially in response to a pressure differential;
a locking mechanism positioned at least partially within the housing, wherein the locking mechanism is configured to actuate from a first locking mechanism position into a second locking mechanism position at least partially in response to the pressure differential while the piston is in the second piston position; and
a disk positioned at least partially within the housing, wherein the disk prevents fluid flow through the axial bore, wherein the disk is configured to break at least partially in response to the pressure differential while the locking mechanism is in the second locking mechanism position, thereby permitting fluid flow through the axial bore.

9. A downhole tool, comprising:
a housing defining an axial bore;
a piston positioned at least partially within the housing, wherein the piston is configured to actuate from a first piston position into a second piston position at least partially in response to a pressure differential;
a locking mechanism positioned at least partially within the housing, wherein the locking mechanism is configured to actuate from a first locking mechanism position into a second locking mechanism position at least partially in response to the pressure differential while the piston is in the second piston position;
a disk positioned at least partially within the housing, wherein the disk prevents fluid flow through the axial bore, wherein the disk is configured to break at least partially in response to the pressure differential while the locking mechanism is in the second locking mechanism position, thereby permitting fluid flow through the axial bore; and
an insert positioned at least partially within the housing, wherein an annulus is defined at least partially between the housing and the insert, wherein the piston is positioned at least partially within the annulus, and wherein the locking mechanism comprises a lug that is positioned at least partially within a radial insert opening in the insert.

10. The downhole tool of claim 9 , wherein the lug is configured to actuate from a recess in a support ring into a recess in the piston at least partially in response to the pressure differential while the piston is in the second piston position.

11. The downhole tool of claim 10 , further comprising a shear ring positioned at least partially within the housing and below the support ring, wherein the support ring, the disk, and the shear ring are configured to move in a downhole direction at least partially in response to the pressure differential while the lug is positioned in the recess in the piston.

12. The downhole tool of claim 11 , further comprising a retainer ring positioned at least partially within the housing and below the piston and the shear ring, wherein the shear ring contacts the retainer ring while moving in the downhole direction, and wherein the disk breaks at least partially in response to the shear ring contacting the retainer ring.

13. The downhole tool of claim 11 , wherein a first circumferential portion of the disk is configured to actuate in the downhole direction prior to a second circumferential portion of the disk.

14. A downhole tool, comprising:
a housing;
an insert positioned at least partially within the housing, wherein an annulus is defined at least partially between the housing and the insert, and wherein the insert defines a radial insert opening;
a piston positioned at least partially within the annulus, wherein the piston is configured to actuate in an axial direction in the annulus from a first piston position into a second piston position at least partially in response to changing the pressure of the fluid in the axial bore, and wherein the piston defines a piston recess in an inner surface thereof;
a support ring positioned at least partially within the housing and the insert, wherein the support ring defines a support ring recess in an outer surface thereof;
a locking mechanism positioned at least partially in the radial insert opening, wherein the locking mechanism is configured to actuate from the support ring recess into the piston recess at least partially in response to increasing the pressure of the fluid in the axial bore while the piston is in the second piston position; and
a disk positioned at least partially within the housing, wherein the disk prevents fluid flow through the axial bore, wherein the support ring and the disk are configured to actuate in the downhole direction at least partially in response to increasing the pressure of the fluid in the axial bore while the locking mechanism is positioned in the piston recess, and wherein the disk is configured to break at least partially in response to the disk actuating in the downhole direction, thereby permitting fluid flow through the axial bore.

15. The downhole tool of claim 14 , wherein th

Assignees

• Innovex Downhole Solutions Inc

Inventors

• Driller Brent
• Tonti Nick

Classifications

• E21B33/1208

  characterised by the construction of the sealing or packing means (E21B33/1277 takes precedence) · CPC title

• E21B33/126

  with fluid-pressure-operated elastic cup or skirt (E21B33/122, E21B33/124 take precedence) · CPC title

• E21B33/12

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

• E21B33/1294 Primary

  characterised by a valve, e.g. a by-pass valve · CPC title

• E21B34/063 Primary

  Valve or closure with destructible element, e.g. frangible disc (E21B34/103 takes precedence) · CPC title