Rotating control device system with rams

Patent metadata

Field	Value
Publication number	US-11274517-B2
Application number	US-202016885356-A
Country	US
Kind code	B2
Filing date	May 28, 2020
Priority date	May 28, 2020
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

A rotating control device (RCD) system includes a housing having a bore, a first ram assembly supported in the housing, and a second ram assembly supported within the housing. The first ram assembly includes a first ram and a first packer coupled to the first ram, and the second ram assembly includes a second ram and a second packer coupled to the second ram. The RCD system also includes a bearing assembly configured to enable the first packer and the second packer to rotate relative to the first ram and the second ram.

First claim

The invention claimed is:

1. A rotating control device (RCD) system, comprising:
a housing comprising a bore;
a first ram assembly supported in the housing, wherein the first ram assembly comprises a first ram and a first packer coupled to the first ram;

a second ram assembly supported in the housing, wherein the second ram assembly comprises a second ram and a second packer coupled to the second ram; and
a bearing assembly configured to enable the first packer and the second packer to rotate relative to the first ram and the second ram,
an actuator assembly configured to drive the first ram assembly and the second ram assembly toward one another to adjust the RCD system to a closed configuration in which the first packer and the second packer form an annular structure that is configured to seal about a tubular within the bore.

2. The RCD system of claim 1 , wherein the bearing assembly is configured to enable the first packer and the second packer to rotate in a circumferential direction about the bore.

3. The RCD system of claim 1 , wherein the first packer and the second packer are configured to form an annular seal about a tubular within the bore.

4. The RCD system of claim 1 , wherein the first packer and the second packer each comprise an arc cross-sectional shape.

5. The RCD system of claim 1 , wherein a radially-inner curved surface of the first ram and a radially-outer curved surface of the first packer comprise a corresponding taper.

6. The RCD system of claim 1 , wherein the first ram and the first packer are coupled to one another via a stab connection.

7. The RCD system of claim 1 , comprising a first packer assembly, wherein the first packer assembly comprises the first packer, a first bearing of the bearing assembly, and a first stab feature, and wherein the first packer assembly is configured to couple to the first ram via the first stab feature to form the first ram assembly.

8. The RCD system of claim 7 , wherein the first stab feature is positioned on an outer surface of the first packer assembly to enable the first packer assembly to couple to a second stab feature on an inner surface of the first ram.

9. The RCD system of claim 1 , comprising one or more retaining features that are configured to block rotation of the first packer and the second packer relative to the first ram and the second ram.

10. The RCD system of claim 9 , wherein the one or more retaining features comprise shear pins that are configured to shear in response to a rotational force exerted on the first packer and the second packer.

11. The RCD system of claim 9 , wherein the one or more retaining features comprise actuatable locks that are adjustable to an unlocked configuration to enable rotation of the first packer and the second packer in response to the RCD system being driven toward or reaching a closed configuration.

12. A rotating control device (RCD) system, comprising:
a housing comprising a bore;
a first ram assembly comprising a first ram and a first packer rotatably coupled to the first ram;

a second ram assembly comprising a second ram and a second packer rotatably coupled to the second ram; and
an actuator assembly configured to drive the first ram and the second ram toward one another to adjust the RCD system to a closed configuration in which the first packer and the second packer form an annular structure that is configured to seal about a tubular within the bore.

13. The RCD system of claim 12 , comprising a bearing assembly configured to rotatably couple the first packer to the first ram and to rotatably couple the second packer to the second ram.

14. The RCD system of claim 12 , wherein the first packer and the second packer are configured to rotate together as the annular structure in a circumferential direction about the bore.

15. The RCD system of claim 12 , wherein the first ram and the first packer are coupled to one another via a stab connection.

16. The RCD system of claim 12 , comprising one or more retaining features that are configured to block rotation of the first packer and the second packer relative to the first ram and the second ram.

17. A method of operating a rotating control device (RCD) system, the method comprising:
driving a first ram assembly and a second ram assembly toward one another to adjust the RCD system to a closed configuration in which a first packer of the first ram assembly and a second packer of a second ram assembly contact one another to form an annular seal about a tubular within a bore; and
rotating the first packer and the second packer relative to a first ram body of the first ram assembly and a second ram body of the second ram assembly as the tubular rotates within the bore.

18. The method of claim 17 , comprising:
coupling the first packer and the second packer to a running tool;
lowering the first packer and the second packer toward a well using the running tool; and
bringing the first packer into contact with the first ram to form the first ram assembly and the second packer into contact with the second ram to form the second ram assembly.

Assignees

• Cameron Int Corp
• Schlumberger Technology Corp

Inventors

• Tenorio Harold
• Tyler Jon

Classifications

• E21B33/085 Primary

  Rotatable packing means, e.g. rotating blow-out preventers · CPC title

• E21B33/062

  with sliding rams · CPC title