Reactive super-elastic composite oilfield components

Patent metadata

Field	Value
Publication number	US-11156258-B2
Application number	US-201715724242-A
Country	US
Kind code	B2
Filing date	Oct 3, 2017
Priority date	Oct 3, 2016
Publication date	Oct 26, 2021
Grant date	Oct 26, 2021

Abstract

An oilfield tool can include a composite structure that includes a reactive shape-memory alloy element disposed at least in part in a filler material.

First claim

What is claimed is:

1. An oilfield tool comprising:
a composite structure comprising: a reactive shape-memory alloy element disposed at least in part in a filler material; and a third component,
wherein the reactive shape-memory alloy element comprises a plurality of features that are aligned and parallel,
wherein the plurality of features of the reactive shape-memory alloy element is at least one selected from the group consisting of rods; wires; and springs,
wherein the filler material self-responds to flexing of the plurality of features of the reactive shape-memory alloy element by deflecting when mechanically loaded in a bending mode, and reversibly springing back when unloaded,
wherein the filler material and the third component are built or injected in between the plurality of features of the reactive shape-memory alloy element, and
wherein the third component is at least one selected from the group consisting of: self-healing chemicals, piezo-particles, thermal-active shape memory polymers, pH-active shape-memory polymers, electro-active shape memory polymers, and ferromagnetic polymers.

2. The oilfield tool of claim 1 wherein the filler material comprises a polymeric material.

3. The oilfield tool of claim 1 wherein the filler material comprises at least one metal.

4. The oilfield tool of claim 1 wherein the filler material comprises at least one ceramic.

5. The oilfield tool of claim 1 wherein the filler material comprises a piezo-electric material.

6. The oilfield tool of claim 1 comprising an unstressed state shape and a stressed state shape.

7. The oilfield tool of claim 6 wherein state transitions occur responsive to pressure.

8. The oilfield tool of claim 6 wherein state transitions occur responsive to temperature.

9. The oilfield tool of claim 6 wherein state transitions occur responsive to temperature and pressure.

10. The oilfield tool of claim 1 comprising a fracturing plug tool.

11. The oilfield tool of claim 1 comprising a packer tool.

12. The oilfield tool of claim 1 comprising a gas lift valve tool.

13. The oilfield tool of claim 1 comprising a drillstring tool.

14. The oilfield tool of claim 1 wherein the reactive shape memory alloy element comprises titanium.

15. The oilfield tool of claim 1 wherein the reactive shape memory alloy element comprises nickel.

16. The oilfield tool of claim 1 wherein the reactive shape memory alloy element comprises copper.

Assignees

• Schlumberger Technology Corp

Inventors

• Marya Manuel P
• Singh Virendra
• Yun Jushik

Classifications

• C22C9/00 Primary

  Alloys based on copper · CPC title

• F16F2224/0258

  Shape-memory metals, e.g. Ni-Ti alloys · CPC title

• F16F1/02

  made of steel or other material having low internal friction {(characterised by their special construction from fibre-reinforced plastics F16F1/366; spring units consisting of several springs F16F3/02; making springs from wire B21F35/00)}; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant · CPC title

• C22C38/02

  containing silicon · CPC title

• C22C19/03

  based on nickel · CPC title