Gripping arrangement

Patent metadata

Field	Value
Publication number	US-10077624-B2
Application number	US-201615214202-A
Country	US
Kind code	B2
Filing date	Jul 19, 2016
Priority date	Jul 19, 2016
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

Abstract

An embodiment of a gripping arrangement includes a mandrel having an axially extending groove therein, a first slip ring about the mandrel, a first cone about the mandrel spaced from the first slip ring, and a key engaged with the groove such that the key is axially movable and rotationally fixed relative to the mandrel. The key is disposed to maintain the spacing between the first slip ring and the first cone. The gripping arrangement also includes a release feature releasably interconnected with the key and method.

First claim

What is claimed is:

1. A gripping arrangement comprising:
a mandrel having an axially extending groove therein;
a first slip ring disposed radially outwardly of the mandrel;
a first cone disposed radially outwardly of the mandrel spaced from the first slip ring;
a key engaged with the groove such that the key is axially movable and rotationally fixed relative to the mandrel, the key disposed to maintain the spacing between the first slip ring and the first cone; and
a release feature releasably interconnected with the key.

2. The gripping arrangement as claimed in claim 1 wherein the key includes an offset.

3. The gripping arrangement as claimed in claim 1 wherein the release feature is a shear element.

4. The gripping arrangement as claimed in claim 1 wherein the release feature connects the key to the first slip ring.

5. The gripping arrangement as claimed in claim 1 further comprising a slip interactive with the first slip ring and the first cone.

6. The gripping arrangement as claimed in claim 5 wherein the slip is prevented from setting by the key until the release feature releases.

7. The gripping arrangement as claimed in claim 1 wherein the groove includes a shoulder configured to drive the key to unset the gripping arrangement.

8. A method for setting a gripping arrangement comprising:
running the gripping arrangement as claimed in claim 1 , the arrangement further comprising a second slip ring and, a second cone interactive with the slip ring;
actuating the second slip ring and cone while delaying actuation of the first slip ring and cone;
releasing the release feature; and
actuating the first slip ring and the first cone.

9. The method as claimed in claim 8 further comprising deploying a seal.

10. The method as claimed in claim 9 wherein the seal is disposed between the first and second cones.

11. The method as claimed in claim 9 wherein the seal is a compression element.

12. A method for unsetting a gripping arrangement claimed in claim 1 , the arrangement further including a second slip ring and, a second cone interactive with the second slip ring, the method comprising:
pulling on the second slip ring and the mandrel;
increasing a distance between the second slip ring and the second cone;
shifting the mandrel relative to the key;
contacting the key on a shoulder of the groove; and
moving the first cone with the key away from the first slip ring.

Assignees

• Doane James
• Baker Hughes A Ge Co Llc

Inventors

• Doane James

Classifications

• E21B33/129

  with mechanical slips for hooking into the casing (E21B33/122, E21B33/124 take precedence) · CPC title

• E21B23/01

  for anchoring the tools or the like (E21B23/02 - E21B23/06 take precedence; anchoring of drives in the borehole E21B4/18) · CPC title

• E21B33/1293

  with means for anchoring against downward and upward movement (E21B33/1291, E21B33/1295 take precedence) · CPC title

• E21B33/12

  Packers; Plugs (used for cementing E21B33/134, E21B33/16) · CPC title

• E21B33/128 Primary

  with a member expanded radially by axial pressure (E21B33/122, E21B33/124 take precedence) · CPC title