WO2016191584A4

WO2016191584A4 - Tubing mounted injection valve

Info

Publication number: WO2016191584A4
Application number: PCT/US2016/034394
Authority: WO
Inventors: Virgilio Molino PORTO; Danilo Leite IGLESIAS; Bruno Queiroz PESTANA; Otavio Maffud CILLI
Original assignee: Weatherford Technology Holdings, Llc
Priority date: 2015-05-26
Filing date: 2016-05-26
Publication date: 2017-01-19
Also published as: WO2016191584A1

Abstract

Embodiments of the present disclosure generally relate to an injection valve and methods for operating a well using the injection valve. The injection valve assembly includes a valve body, a sleeve movably disposed in the valve body, wherein movement of the sleeve switches the valve assembly between an open position and a closed position, a flow actuator coupled to the sleeve, and a pressure actuator coupled to the sleeve.

Claims

AMENDED CLAI MS received by the International Bureau on 01 December 2016 (01.12.16) CLAIMS

1. A valve assembly, comprising: a valve body; a closure member movable between an open position and a closed position to control fluid flow through the valve body; a sleeve movably disposed in the valve body, wherein movement of the sleeve moves the closure member between the open position and the closed position; a flow actuator coupled to the sleeve to move the sleeve, wherein the flow actuator comprises: a housing disposed in the sleeve; and a flow restrictor disposed in the housing; and a pressure actuator coupled to the sleeve to move the sleeve.

2. The valve of claim 1 , wherein the housing is retrievably disposed in the sleeve.

3. The valve of claim 1 , wherein the pressure actuator comprises: a piston disposed in a channel formed in the valve body, wherein the channel has a first end in fluid communication with an exterior pressure and a second end in fluid communication with an interior pressure of the valve body.

4. The valve of claim 3, wherein the pressure actuator further comprises an adaptor coupled between the piston and the sleeve.

5. The valve of claim 1 , further comprising a biasing element coupled to the sleeve, wherein the biasing element is configured to urge the sleeve between the open position and the closed position.

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6. The valve of claim 5, wherein the biasing element is a coil spring disposed between the sleeve and the valve body.

7. The valve assembly of claim 1 , further comprising an auxiliary sleeve coupled to the valve body, wherein the auxiliary sleeve is configured to temporarily hold the sleeve to open the valve assembly.

8. The valve assembly of claim 1 , wherein the sleeve moves along an axis of the valve body to open or close the closure member.

9. The valve assembly of claim 1 , wherein the flow restrictor is a variable flow restrictor.

10. A method for injecting a fluid through a well, comprising:

applying an opening pressure to a pressure actuator to open an injection valve mounted in a tubing disposed downhole;

applying pressure cycles through the opened injection valve to open a formation insolation valve positioned downstream to the injection valve; and

injecting a fluid through a flow actuator in the injection valve and the formation insolation valve.

11 . The method of claim 10, wherein injecting the fluid comprises injecting the fluid at a flow rate sufficient to keep the injection valve open.

12. The method of claim 1 1 , wherein injecting the fluid at the flow rate through the flow actuator so that a sleeve coupled to the flow actuator opens a closure member in the injection valve.

13. The method of claim 10, wherein applying the opening pressure to open the injection valve comprises moving a sleeve coupled to the pressure actuator to open a closure member in the injection valve.

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14. The method of claim 10, further comprising:

completing the well with a lower completion set comprising the formation isolation valve; and

closing the formation isolation valve.

15. The method of claim 14, further comprising:

locking the injection valve in an open position; and

running-in the tubing with the injection valve mounted therein.

16. The method of claim 15 further comprising:

setting the tubing on a tubing hanger; and

pressuring down an annulus surrounding the tubing to close the injection valve.

17. The method of claim 16, further comprising:

removing a blowout preventer assembly from a wellhead of the well with the injection valve and the formation isolation valve closed; and

running a Christmas tree on a cable to attach the Christmas tree on the wellhead.

18. The method of claim 10, wherein the pressure cycles comprises pulses of a higher pressure over a base pressure, and the base pressure is equal to or higher than the opening pressure.

19. An injection well, comprising:

a lower completion assembly having a formation isolation valve;

a tubing hanging in the well and coupled to the lower completing assembly; and

a tubing mounted injection valve disposed in the tubing, wherein the tubing mounted injection valve comprises:

a valve body mounted in the tubing;

17 a sleeve movably disposed in the valve body, wherein movement of the sleeve switches the tubing mounted injection valve between an open position and a closed position;

a flow actuator coupled to the sleeve, wherein the flow actuator comprises:

a housing disposed in the sleeve; and

a flow restrictor disposed in the housing; and a pressure actuator coupled to the sleeve.

20. The injection well of claim 19, wherein the pressure actuator comprises: a piston disposed in a channel formed in the valve body, wherein the channel has a first end in fluid connection to a port connected to annulus surrounding the tubing and a second end in fluid connection to a central bore defined by the valve body.

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