Liner hanger system

Patent metadata

Field	Value
Publication number	US-9580981-B2
Application number	US-201314048119-A
Country	US
Kind code	B2
Filing date	Oct 8, 2013
Priority date	Dec 21, 2012
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

An improved liner hanger system is disclosed. The improved liner hanger system comprises a liner hanger positioned within a casing. The liner hanger comprises a spiked portion having one or more spikes, wherein the spikes comprise a flat portion. At least one of the one or more spikes is expandable and the flat portion of each of the one or more spikes interfaces with the casing when the spike is in the expanded position. A liner is coupled to the liner hanger.

First claim

What is claimed is:

1. A system for performing subterranean operations comprising:
a liner hanger positioned within a casing,
wherein the liner hanger comprises a spiked portion having one or more metallic spikes, each of the one or more metallic spikes extending in a circular ring along an outer perimeter of the liner hanger;
wherein the one or more metallic spikes are tapered to a flat portion,
wherein at least one of the one or more metallic spikes is expandable, and
wherein the flat portion of each of the one or more metallic spikes deforms the casing when the spike is in the expanded position,

wherein each of the one or more metallic spikes provides a metal-to-metal seal between the liner hanger and the casing when the spike is in the expanded position; and
a liner coupled to the liner hanger.

2. The system of claim 1 , wherein the one or more metallic spikes are made from a material selected from a group consisting of Aluminum, steel, and a combination thereof.

3. The system of claim 1 , wherein expanding the one or more metallic spikes couples the liner hanger to the casing.

4. The system of claim 1 , wherein a spike angle of one or more metallic spikes is selected such that the spike is substantially normal to the liner hanger when the spike is in the expanded position.

5. The system of claim 1 , further comprising a sealing element, wherein the sealing element is positioned at a distal end of the spiked portion.

6. The system of claim 5 , wherein the sealing element is selected from a group consisting of rubber, polymeric materials and ductile metals.

7. The system of claim 1 , wherein the one or more metallic spikes comprise a first spike positioned at a first axial location along the liner hanger and a second spike positioned at a second axial location along the liner hanger.

8. A method for coupling a liner to a casing of a cased wellbore in a subterranean formation comprising:
coupling a liner hanger to the liner,
wherein the liner hanger comprises a spiked portion having a first metal spike tapered to a flat portion;

lowering the liner and the liner hanger downhole through the casing; and
expanding the first metal spike, wherein the first metal spike causes deformation of the casing and provides a metal-to-metal seal between the liner hanger and the casing when the first metal spike is in the expanded position, and
wherein expanding the first metal spike couples the liner hanger to the casing.

9. The method of claim 8 , wherein a spike angle of one or more metallic spikes is selected such that the spike is substantially normal to the liner hanger when the spike is in the expanded position.

10. The method of claim 8 , further comprising a sealing element, wherein the sealing element is positioned at a distal end of the spiked portion.

11. The method of claim 8 , wherein the spiked portion further comprises a second metal spike extending in a circular ring along an outer perimeter of the liner hanger, wherein the first metal spike is positioned at a first axial location along the liner hanger and the second metal spike is positioned at a second axial location along the liner hanger.

12. The method of claim 8 , wherein the first metal spike is formed by machining.

13. The method of claim 8 , wherein the first metal spike is made from a material selected from a group consisting of Aluminum, steel, and a combination thereof.

14. A system for supporting a liner in a casing comprising:
a liner hanger coupled to the liner;
a first metal spike and a second metal spike formed on a spiked portion of the liner hanger,
wherein each of the first metal spike and the second metal spike tapered to a flat portion and extends in a circular ring along an outer perimeter of the liner hanger,
wherein the first metal spike is positioned at a first axial location along the liner hanger and the second metal spike is positioned at a second axial location along the liner hanger,
wherein expanding at least one of the first metal spike and the second metal spike deforms the casing to couples the liner to the casing, and

wherein each of the first metal spike and the second metal spike provides a metal-to-metal seal between the liner hanger and the casing when in the expanded position.

15. The system of claim 14 , wherein a spike angle of one or more metallic spikes is selected such that the spike is substantially normal to the liner hanger when the spike is in the expanded position.

16. The system of claim 14 , further comprising a sealing element, wherein the sealing element is positioned at a distal end of the spiked portion.

17. The system of claim 16 , wherein the sealing element is selected from a group consisting of rubber, polymeric materials and ductile metals.

18. The system of claim 14 , wherein at least one of the first metal spike and the second metal spike is formed by machining.

19. The system of claim 14 , wherein at least one of the first metal spike and the second metal spike is made of a material selected from a group consisting of Aluminum, steel, and a combination thereof.

20. The system of claim 15 , wherein the at least one of the first metal spike and the second metal spike are positioned at distal ends of the spiked portion.

Assignees

• Halliburton Energy Services Inc

Inventors

• Zhong Xiaoguang Allan
• Moeller Daniel Keith

Classifications

• E21B43/108

  Expandable screens or perforated liners · CPC title

• E21B43/103

  of expandable casings, screens, liners, or the like · CPC title

• E21B43/105

  Expanding tools specially adapted therefor · CPC title

• 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

• E21B43/10

  Setting of casings, screens, liners {or the like} in wells · CPC title