BACK PRESSURE VALVE

• US 20160186527A1
• Filed: 12/30/2014
• Published: 06/30/2016
• Est. Priority Date: 12/30/2014
• Status: Active Grant

• Current Assignee: Cameron International Corporation (Schlumberger NV)
• Original Assignee: Cameron International Corporation (Schlumberger NV)
• Inventors: Cocker, John Joseph III
• Granted Patent: US 9,810,038 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E21B 23/01 for anchoring the tools or the like E21B23/02 - E21B23/06 take precedence; anchoring of drives in the borehole E21B4/18
• CPC Class Codes: E21B 33/03 Well heads; Setting-up thereof
• CPC Class Codes: E21B 34/025 Chokes or valves in wellheads and sub-sea wellheads for variably regulating fluid flow

Abstract

Embodiments of the present disclosure are directed towards a back pressure valve configured to mount in a mineral extraction system. The back pressure valve includes a body comprising a venting port coaxial with a longitudinal axis of the body, a plunger configured to be in sealing engagement with the body to seal the venting port, and a lock ring disposed about the body, wherein the lock ring is configured to automatically expand radially upon removal of a tool.

Claims

1. A system, comprising:

a back pressure valve configured to mount in a mineral extraction system, wherein the back pressure valve comprises;

a body comprising a venting port coaxial with a longitudinal axis of the body;

a plunger configured to be in sealing engagement with the body to seal the venting port; and

a lock ring disposed about the body, wherein the lock ring is configured to automatically expand radially upon removal of a tool.

2. The system of claim 1, comprising the tool, wherein the tool is configured to radially compress the lock ring when the tool is coupled to the body of the back pressure valve.

3. The system of claim 2, wherein the tool comprises a central portion configured to threadingly engage with the venting port of the body.

4. The system of claim 1, wherein the back pressure valve comprises a seal disposed about the body of the back pressure valve.

5. The system of claim 4, wherein the seal comprises a T-seal, a dovetail seal, an annular seal, a combination thereof.

6. The system of claim 4, wherein the seal is disposed axially below the lock ring when the back pressure valve is mounted in the mineral extraction system.

7. The system of claim 1, wherein the system comprises a tubing hanger, the tubing hanger comprises a hanger bore having a lock ring recess, and the lock ring is configured to engage with the lock ring recess when the lock ring is expanded.

8. The system of claim 1, comprising the tool, wherein the tool comprises a retrievable running tool configured to land the back pressure valve within the mineral extraction system via linear, non-rotational translation.

9. A method, comprising:

coupling a retrievable tool to a back pressure valve;

landing the back pressure valve within a mineral extraction system component via linear translation of the retrievable tool and the back pressure valve; and

automatically radially expanding a lock ring of the back pressure valve upon removal of the retrievable tool from the back pressure valve.

10. The method of claim 9, wherein coupling the retrievable tool to the back pressure valve comprises threading a central portion of the retrievable tool into a venting port of the back pressure valve.

11. The method of claim 9, wherein landing the back pressure valve within the mineral extraction system component via linear translation of the retrievable tool comprises landing the back pressure valve within a hanger bore of a hanger of the mineral extraction system.

12. The method of claim 11, comprising creating a sealing interface between the hanger bore and the back pressure valve with a seal disposed about a body of the back pressure valve, wherein the seal comprises a T-seal, a dovetail seal, or an annular seal.

13. The method of claim 9, comprising biasing a plunger of the back pressure valve toward a closed position with a spring, wherein the plunger is configured to create a sealing interface with a venting port of the back pressure valve.

14. The method of claim 9, wherein coupling the retrievable tool to the back pressure valve comprises radially compressing the lock ring of the back pressure valve into a compressed position with the retrievable tool.

15. The method of claim 14, wherein compressing the lock ring of the back pressure valve into the compressed position with the retrievable tool comprises translating an angled surface of a compression sleeve of the retrievable tool along an angled portion of the lock ring.

16. A system, comprising:

a mineral extraction system component;

a back pressure valve configured to be disposed within the mineral extraction system component, comprising;

a body comprising a venting port;

a plunger configured to be in sealing engagement with the body to seal the venting port; and

a lock ring disposed about the body; and

a retrievable tool configured to couple to the back pressure valve and linearly translate the back pressure valve into a landed position within the mineral extraction system component,

wherein the lock ring is configured to automatically expand radially upon removal of the retrievable tool from the back pressure valve.

17. The system of claim 16, wherein the mineral extraction system component comprises a tubing hanger, a casing hanger, an abandonment cap, or any combination thereof.

18. The system of claim 16, wherein the mineral extraction system component comprises a bore, and the bore comprises a lock ring recess configured to receive the lock ring upon radial expansion of the lock ring.

19. The system of claim 16, wherein the back pressure valve comprises a seal disposed axially beneath the lock ring when the back pressure valve is disposed within the mineral extraction system component, wherein the seal comprises a T-seal, a dovetail seal, an annular seal, or a combination thereof.

20. The system of claim 16, wherein the back pressure comprises a spring configured to bias the plunger to be in sealing engagement with the body.