Dual sleeve stimulation tool

Patent metadata

Field	Value
Publication number	US-9970260-B2
Application number	US-201615146053-A
Country	US
Kind code	B2
Filing date	May 4, 2016
Priority date	May 4, 2015
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

A stimulation tool includes a tubular having a port; a first sleeve member disposed in the tubular and actuatable by an actuating member to move from a closed position wherein fluid communication between a bore of the tubular and the port is blocked; and a closure member disposed in the tubular and actuatable by the actuating member to a closed position wherein fluid communication through the bore of the tubular is blocked. A method of stimulating multiple zones of a tubular in a wellbore includes moving a sleeve member in the tubular by receiving an actuating member in the sleeve member; releasing the actuating member from the sleeve member; and actuating a closure member by receiving the released actuating member in a seat.

First claim

The invention claimed is:

1. A stimulation tool, comprising:
a tubular having a first port and a second port;
a first sleeve member disposed in the tubular and actuatable by a second actuating member to move from a closed position wherein fluid communication between a bore of the tubular and the first port is blocked;
a second sleeve member disposed in the tubular and actuatable by a first actuating member to move from a closed position wherein fluid communication between the bore of the tubular and the second port is blocked; and
a first closure member disposed in the tubular and actuatable by the second actuating member to a closed position wherein fluid communication through the bore of the tubular is blocked, wherein
the second sleeve member includes a second seat configured to receive the first actuating member, and
the second sleeve member separates and moves downhole from first closure member when the second seat receives the first actuating member.

2. The tool of claim 1 , wherein the second actuating member is a ball.

3. The tool of claim 1 , wherein the first closure member is a flapper valve.

4. The tool of claim 1 , wherein:
the first sleeve member includes a first seat,
the tool further comprising a third sleeve member disposed in the tubular,
the third sleeve member includes a third seat configured to receive the second actuating member, and
the first closure member is actuatable by the third sleeve member when the third seat receives the second actuating member.

5. The tool of claim 4 , wherein
the first seat is configured to receive and release the second actuating member, and
the third seat is configured to receive and release the second actuating member.

6. The tool of claim 1 , wherein the first closure member is downhole from the first port.

7. The tool of claim 4 , wherein
the first seat is configured to receive a third actuating member,
the tool further comprising:
a second closure member disposed in the tubular and actuatable by the third actuating member to a closed position wherein fluid communication through the bore of the tubular is blocked, and
a fourth sleeve member disposed in the tubular, the fourth sleeve member including a fourth seat configured to receive the third actuating member, and

the second closure member is actuatable by the fourth sleeve member when the fourth seat receives the third actuating member.

8. The tool of claim 1 , wherein the first sleeve member includes a counting mechanism that is slidable and includes alternating locking members and alternating engagement members.

9. A multi-zone stimulation assembly, comprising:
a tubular having a first port, a second port, and a bore therethrough;
a first sleeve member having a first seat, the first sleeve member configured to selectively allow fluid communication through the first port;
a second sleeve member having a second seat, the second sleeve member configured to selectively allow fluid communication through the second port
a third sleeve member having a third seat, wherein the third sleeve member is actuated by the second sleeve member; and
a closure member disposed between the first and second ports and actuatable by the third sleeve member to a closed position wherein fluid communication is blocked through the bore of the tubular.

10. A method of stimulating multiple zones of a tubular in a wellbore, comprising:
moving a sleeve member in the tubular by receiving an actuating member in the sleeve member, thereby allowing fluid communication between a bore of the tubular and a port uphole from the sleeve member in the tubular;
releasing the actuating member from the sleeve member;
after releasing the actuating member from the sleeve member, actuating a closure member by receiving the released actuating member in a seat, thereby blocking fluid communication through the bore of the tubular; and
pumping fluid through the port.

11. The method of claim 10 , wherein the actuating member is a ball.

12. The method of claim 10 , wherein the closure member is a flapper valve.

13. The method of claim 10 , further comprising forming the seat, wherein:
forming the seat comprises releasing a second actuating member into the tubular, and
the second actuating member is released into the tubular before the sleeve member receives the actuating member.

14. The method of claim 13 , wherein forming the seat includes moving at least one engagement member into the bore of the tubular.

15. The method of claim 10 , wherein receiving the actuating member in the sleeve member includes engaging the actuating member with a second seat in the sleeve member.

16. The method of claim 10 , wherein the actuating member passes through the sleeve member before actuating the closure member.

17. The method of claim 10 , wherein a momentum of the actuating member moves the sleeve member.

18. A stimulation tool, comprising:
a tubular having a port;
a first sleeve member disposed in the tubular, wherein the first sleeve member includes a first seat, wherein the first seat is downhole from the port;
a second sleeve member disposed in the tubular, wherein the second sleeve member is actuatable to form a second seat and is movable from a closed position wherein fluid communication between a bore of the tubular and the port is blocked, wherein the second seat is downhole from the port, and the first seat is downhole from the second seat; and
a closure member disposed in the tubular and actuatable by the first sleeve member to a closed position wherein fluid communication through the bore of the tubular is blocked, wherein the first seat is downhole from the closure member, and the closure member is downhole from the second seat.

19. The tool of claim 18 , wherein:
the first sleeve member includes engagement members;
the engagement members include at least one of ball bearings and dogs;
the first sleeve member includes locking members;
the locking members include at least one of lock rings and snap rings; and
the first sleeve member includes a counting mechanism.

20. The tool of claim 18 , wherein:
the second sleeve member includes a counting mechanism;
the counting mechanism is slidable and includes at least one of alternating locking members and alternating engagement members;
the locking members include at least one of lock rings and snap rings;
the engagement members include at least one of ball bearings and dogs; and
the engagement members form the second seat.

Assignees

• Weatherford Tech Holdings Llc

Inventors

• Gonzalez Dick Salomon

Classifications

• E21B2200/06

  Sleeve valves · CPC title

• E21B2200/05

  Flapper valves · CPC title

• E21B33/12

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

• E21B34/10 Primary

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

• E21B43/14

  Obtaining from a multiple-zone well · CPC title