Backup and packer

Patent metadata

Field	Value
Publication number	US-11492869-B2
Application number	US-202117222411-A
Country	US
Kind code	B2
Filing date	Apr 5, 2021
Priority date	Apr 5, 2021
Publication date	Nov 8, 2022
Grant date	Nov 8, 2022

Abstract

A backup including a capture ring, and a backup ring articulated to the capture ring.

First claim

What is claimed is:

1. A backup comprising:
a capture ring including a support member having a root and a distal end, the member extending from the capture ring between but not including an inside diameter of the capture ring and an outside diameter of the capture ring; and
a backup ring articulated to the capture ring.

2. The backup as claimed in claim 1 wherein the capture ring includes a load brace.

3. The backup as claimed in claim 1 wherein the support member is cantilevered from the capture ring.

4. The backup as claimed in claim 1 wherein the support member extends from the capture ring to an extent that when deformed radially outwardly during use, a distal end of the support member falls between a gauge diameter of a packer in which the backup is installed and an inside diameter surface of a tubular member in which the packer is set.

5. A backup comprising:
a capture ring including a support member wherein at an intersection between the support member and the capture ring there is a stress reduction opening; and
a backup ring articulated to the capture ring.

6. The backup as claimed in claim 1 wherein the backup ring includes a bulbous base.

7. The backup as claimed in claim 6 wherein the bulbous base is received in a recess of the capture ring, the bulbous base and the recess forming the articulation between the backup ring and the capture ring.

8. The backup as claimed in claim 1 further including a resilient member disposed adjacent the capture ring and configured to maintain the backup in contact with a packer element during use.

9. A packer comprising:
a mandrel;
an element disposed about the mandrel; and
a backup as claimed in claim 1 disposed about the mandrel and adjacent the element.

10. The packer as claimed in claim 9 further comprising an intensifier configuration.

11. The packer as claimed in claim 10 wherein the intensifier configuration is a reduced annular area radially outward of the mandrel.

12. The backup as claimed in claim 10 wherein the intensifier configuration is a ramp.

13. A packer comprising:
a mandrel;
an element disposed about the mandrel;
a backup having a capture ring;
a backup ring articulated to the capture ring disposed about the mandrel and adjacent the element,
an intensifier configuration disposed at the mandrel, wherein the intensifier configuration is a step.

14. A wellbore comprising:
a borehole in a subsurface formation;
a string in the borehole including a backup as claimed in claim 1 .

15. The wellbore as claimed in claim 14 wherein the backup is a part of a packer.

Assignees

• Urban Larry
• Anderson Gary
• Kossa Edward
• Snitkoff Joshua Raymond
• Baker Hughes Oilfield Operations Llc

Inventors

• Urban Larry
• Anderson Gary
• Kossa Edward
• Snitkoff Joshua Raymond

Classifications

• E21B33/1216 Primary

  Anti-extrusion means, e.g. means to prevent cold flow of rubber packing · CPC title