Non-rotating method and system for isolating wellhead pressure

Patent metadata

Field	Value
Publication number	US-9677367-B2
Application number	US-201414315179-A
Country	US
Kind code	B2
Filing date	Jun 25, 2014
Priority date	Jun 25, 2014
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

Embodiments of the present disclosure include a plugging assembly configured to be disposed within a production flow bore of a tubing spool tree, wherein the plugging assembly includes a body having a central bore, a lock ring disposed about the body, a support sleeve slidably disposed about the body, and an inner body support pin coupled to the support sleeve and extending into the central bore of the body, wherein axial actuation of the inner body support pin drives the support sleeve between the body and the lock ring to actuate the lock ring radially outward, and wherein the plugging assembly is configured to be disposed within a production flow bore of a tubing spool tree.

First claim

The invention claimed is:

1. A system, comprising:
a plugging assembly configured to be disposed within a production flow bore of a tubing spool tree, wherein the plugging assembly comprises:
a body;
a lock ring disposed about the body; and
a support sleeve slidably disposed about the body and extending at least partially over an axial end face of the body,
wherein the support sleeve is configured to axially extend between the body and the lock ring and drive the lock ring radially outward during actuation of the plugging assembly.

2. The system of claim 1 , wherein the body comprises a stopping shoulder configured to engage with a landing shoulder of the production flow bore.

3. The system of claim 1 , wherein the plugging assembly comprises an inner body support pin coupled to the support sleeve and extending into a central bore of the body.

4. The system of claim 3 , wherein the inner body support pin comprises an inner lock ring disposed within an annular recess of the inner body support pin, wherein the inner lock ring is configured to engage with an inner lock ring recess of the central bore of the body when the plugging assembly is in an actuated position.

5. The system of claim 3 , wherein the plugging assembly comprises a plurality of guide pins extending from the body into the central bore of the body and into an annular recess of the inner body support pin to restrict axial movement of the inner body support pin.

6. The system of claim 1 , wherein the body comprises a seal configured to engage with the production flow bore.

7. The system of claim 6 , wherein the seal comprises a metal end cap seal, an elastomer seal, an O-ring, or any combination thereof.

8. The system of claim 1 , wherein the support sleeve comprises an axial end with a first angled surface, the lock ring has a second angled surface, and the first and second angled surfaces are configured to engage with one another to transfer linear movement of the support sleeve to radial movement of the lock ring.

9. The system of claim 1 , comprising a tool configured to apply an axial force to the plugging assembly to drive the support sleeve in between the body and the lock ring.

10. The system of claim 9 , wherein the tool comprises a manual tool, a hydraulic tool, an electromechanical tool, a side door lubricator, or any combination thereof.

11. The system of claim 1 , comprising the tubing spool tree having the production flow bore, wherein the production flow bore is a horizontal production flow bore.

12. A system, comprising:
a plugging assembly, comprising:
a body comprising a central bore;
a lock ring disposed about the body;
a support sleeve slidably disposed about the body; and
an inner body support pin coupled to the support sleeve and extending into the central bore of the body,
wherein axial actuation of the inner body support pin drives the support sleeve between the body and the lock ring to actuate the lock ring radially outward, and wherein the plugging assembly is configured to be disposed within a production flow bore of a tubing spool tree.

13. The system of claim 12 , wherein the lock ring comprises a C-ring.

14. The system of claim 12 , wherein the inner body support pin comprises an inner lock ring disposed within an annular recess, wherein the inner lock ring is configured to automatically expand radially outward into an inner lock ring recess of the central bore when the support sleeve is disposed between the body and the lock ring.

15. The system of claim 12 , wherein the body comprises an annular seal disposed about a circumference of the body, wherein the seal is configured to create a sealing interface with the production flow bore, and the seal comprises a metal end cap seal, an elastomer seal, an O-ring, or any combination thereof.

16. The system of claim 12 , wherein the body comprises a stopping shoulder configured to engage with a landing shoulder of the production flow bore when the plugging assembly is disposed within the production flow bore.

17. A method, comprising:
disposing a plugging assembly within a horizontal production flow bore of a tubing spool tree;
linearly driving a support sleeve of the plugging assembly radially between a main body of the plugging assembly and a lock ring of the plugging assembly relative to a central axis of the plugging assembly with a linear, non-rotational force;
transferring linear movement of the support sleeve to radial movement of the lock ring;
engaging the lock ring with a lock ring recess of the horizontal production flow bore.

18. The method of claim 17 , comprising engaging a stopping shoulder of the main body with a landing shoulder of the production flow bore, and creating a sealing interface between a seal disposed about the main body with the production flow bore.

19. The method of claim 17 , comprising engaging an inner lock ring of an inner body support pin of the plugging assembly with an inner lock ring recess of a central bore of the main body to restrict movement of the support sleeve when the support sleeve is disposed between the lock ring and the main body.

20. The method of claim 17 , wherein linearly driving the support sleeve of the plugging assembly between the main body of the plugging assembly and the lock ring of the plugging assembly comprises applying a linear force to the support sleeve with a manual tool, a hydraulic tool, an electromechanical tool, a side door lubricator, or any combination thereof.

Assignees

• Cameron Int Corp

Inventors

• Nguyen Dennis P
• Vorderkunz Kristin Dale

Classifications

• E21B23/02 Primary

  for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing (E21B23/03 - E21B23/06 take precedence) · CPC title

• E21B33/068

  having provision for introducing objects or fluids into, or removing objects from, wells (cementing-heads E21B33/05) · CPC title

• E21B33/03 Primary

  Well heads; Setting-up thereof · CPC title

• E21B33/04

  Casing heads; Suspending casings or tubings in well heads · CPC title

• E21B33/0353

  Horizontal or spool trees, i.e. without production valves in the vertical main bore · CPC title