Anchoring device, system and method of attaching an anchor to a tubular

Patent metadata

Field	Value
Publication number	US-10208550-B2
Application number	US-201313888773-A
Country	US
Kind code	B2
Filing date	May 7, 2013
Priority date	May 7, 2013
Publication date	Feb 19, 2019
Grant date	Feb 19, 2019

Abstract

An anchoring device includes at least one slip configured to fixedly engage the anchoring device to a structure when urged against the structure, and a member separate from the at least one slip positioned radially of the at least one slip having a portion that is radially deformable in response to longitudinal compression, the portion being configured to urge the at least one slip against the structure when deformed.

First claim

What is claimed is:

1. An anchoring device comprising:
at least one slip configured to fixedly engage the anchoring device to a structure when urged against the structure, the at least one slip including a first end and a second end;
a sleeve having an end including a first recess portion;
a collar having an end portion including a second recess portion, wherein the at least one slip extends annularly about the anchoring device with the first end being arranged in the first recess portion and the second end being arranged in the second recess portion in a non-compressed state of the anchoring device, at least one of the first end and the second end being detached from at least one of the sleeve and the collar; and
at least one member separate and distinct from the at least one slip positioned radially inwardly of and spaced from the at least one slip, the at least one member having at least one portion that is radially deformable in response to longitudinal compression between the collar and the sleeve, the at least one portion being configured to be the sole force to urge the at least one slip against the structure when deformed.

2. The anchoring device of claim 1 , wherein the at least one member has a hollow cylindrical shape.

3. The anchoring device of claim 1 , wherein the at least one member is perimetrically continuous.

4. The anchoring device of claim 1 , wherein the at least one member includes a plurality of conical spring washers.

5. The anchoring device of claim 1 , wherein a longitudinal cross section through the at least one member takes the form of an arch when the at least one portion is deformed.

6. The anchoring device of claim 1 , wherein the at least one portion is configured to deform by buckling.

7. The anchoring device of claim 1 , wherein a longitudinal cross section of the at least one portion when deformed is undulating.

8. The anchoring device of claim 1 , wherein an angle defined between a leg of the at least one portion when deformed and an axis of the anchoring device is equal to the inverse tangent of the reciprocal of a coefficient of friction between the at least one slip and a wall of the structure.

9. The anchoring device of claim 1 , wherein the at least one member is configured to cause the at least one portion to deform radially in response to longitudinal compression.

10. The anchoring device of claim 1 , wherein the at least one member has lines of weakness to cause the at least one portion to deform radially in response to longitudinal compression.

11. The anchoring device of claim 1 , further comprising a latching device configured to maintain the at least one portion in a deformed position.

12. The anchoring device of claim 1 , wherein the at least one member is made of an incompressible material.

13. The anchoring device of claim 1 , wherein the at least one slip includes a plurality of integrally formed teeth.

14. An anchoring system comprising:
a tubular; and
an anchoring device comprising:
at least one slip configured to fixedly engage the anchoring device to the tubular when urged against the tubular, the at least one slip including a first end and a second end;
a sleeve having an end including a first recess portion;
a collar having an end portion including a second recess portion, wherein the at least one slip extends annularly about the anchoring device with the first end being arranged in the first recess portion and the second end being arranged in the second recess portion in a non-compressed state of the anchoring device, at least one of the first end and the second end being detached from at least one of the sleeve and the collar; and
at least one member separate and distinct from the at least one slip positioned radially inwardly of and spaced from the at least one slip, the at least one member having at least one portion that is radially deformable in response to longitudinal compression between the collar and the sleeve, the at least one portion being configured to be the sole force to urge the at least one slip against the tubular when deformed.

15. The anchoring device of claim 1 , further comprising a mandrel positioned radially of the at least one slip, the at least one member positioned annularly between the at least one slip and the mandrel having at least one leg configured to urge the at least one slip against the structure when wedged between the at least one slip and the mandrel.

16. The anchoring system according to claim 14 , wherein the at least one slip includes a plurality of integrally formed teeth.

17. The anchoring system according to claim 14 , further comprising:
wherein the collar is arranged radially inwardly of the tubular; and
wherein the sleeve is arranged radially inwardly of the tubular spaced from the collar by a gap at which is positioned the at least one slip, wherein the at least one member is compressed against one of the collar and the sleeve and extends through the gap upon being radially deformed in response to the longitudinal compression.

Assignees

• Munshi Ammar A
• Oconnor Keven M
• Williams Jeffrey C
• Baker Hughes A Ge Co Llc

Inventors

• Munshi Ammar A
• O'Connor Keven M
• Williams Jeffrey C

Classifications

• E21B23/01 Primary

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