Igniter and ignition device for downhole setting tool power charge

Patent metadata

Field	Value
Publication number	US-10365079-B2
Application number	US-201715800323-A
Country	US
Kind code	B2
Filing date	Nov 1, 2017
Priority date	Nov 1, 2017
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

A downhole setting tool having a first housing, a second housing having a chamber connected to the first housing, a power charge positioned within the chamber, an igniter connected to a portion of the power charge, and an ignition device connected to the igniter. The ignition device is configured to actuate upon receipt of an electrical signal. The ignition device is configured to ignite the igniter. The ignition device may rapidly heat up or apply a voltage or current to the igniter. The igniter is configured to cause the detonation of the power charge to set a device within a wellbore. The igniter may be embedded into the power charge with the ignition device positioned within a cavity in the igniter. The igniter may be a pyrotechnic material or may release high energy heat upon application of voltage or current.

First claim

What is claimed is:

1. A downhole setting tool comprising:
a first housing;
a second housing connected to the first housing, the second housing including a chamber;
a power charge positioned within the chamber;
an igniter connected to a portion of the power charge, the igniter positioned within the second housing;
an ignition device connected to the igniter, the ignition device configured to actuate upon receipt of an electrical signal and the ignition device being positioned within the second housing; and
a piston configured to move upon detonation of the power charge to cause the downhole setting tool to be set within a wellbore.

2. The downhole setting tool of claim 1 , wherein the igniter is connected to an uphole end of the power charge.

3. The downhole setting tool of claim 1 , further comprising an adapter positioned between the first housing and the second housing, wherein the adapter is positioned adjacent to the uphole end of the power charge.

4. The downhole setting tool of claim 1 , wherein the igniter is embedded into the power charge.

5. The downhole setting tool of claim 4 , wherein the ignition device is positioned within a recess in the igniter.

6. The downhole setting tool of claim 5 , wherein the ignition device is a thermal match or a heater cartridge.

7. The downhole setting tool of claim 5 , wherein the ignition device is an electric trigger that causes a chemical reaction in the power charge by the application of a voltage or a current.

8. The downhole setting tool of claim 1 , wherein the igniter comprises thermite or comprises both a metal and an oxidizer.

9. The downhole setting tool of claim 8 , wherein the igniter comprises the metal and the oxidizer, the metal and the oxidizer further comprising aluminum and iron oxide, aluminum and copper oxide, aluminum and titanium oxide, magnesium and titanium oxide, aluminum and silicon dioxide, magnesium and titanium oxide, aluminum and vanadium oxide, or a combination thereof.

10. The downhole setting tool of claim 1 , wherein the downhole setting tool is a packer, a bridge plug, or a cement retainer.

11. A method of using a downhole setting tool comprising:
attaching an igniter to an uphole end of a power charge configured to be selectively detonated to move a piston to set the downhole setting tool against a casing within a wellbore; and
attaching an ignition device to the igniter, wherein the ignition device is configured to selectively ignite the igniter upon receipt of an electrical signal via an electrical conduit.

12. The method of claim 11 , further comprising running the downhole setting tool into the wellbore.

13. The method of claim 12 , further comprising detonating the power charge moving the piston to set the downhole setting tool against the casing in the wellbore.

14. The method of claim 11 , wherein the igniter is embedded into the power charge.

15. The method of claim 14 , wherein the ignition device is positioned within a cavity in the igniter.

16. The method of claim 11 , wherein the downhole setting tool is a packer, a bridge plug, or a cement retainer.

17. A power charge for a downhole setting tool comprising:
a power charge configured to be detonated to move a piston to set a tool against a casing within a wellbore, the power charge having an uphole end and a downhole end when installed within a downhole setting tool, the power charge including an outer housing;
an igniter connected to the uphole end of the power charge, the igniter configured to cause the detonation of the power charge upon ignition of the igniter; and
an ignition device connected to the igniter, the ignition device configured to selectively ignite the igniter upon receipt of an electrical signal, wherein the power charge, the igniter, and the ignition device are each positioned within a housing of the downhole setting tool.

18. The power charge of claim 17 , wherein the igniter is embedded within the power charge.

19. The power charge of claim 18 , wherein the ignition device is positioned within a cavity in the igniter.

20. The power charge of claim 19 , wherein the ignition device comprises an electric trigger, a heater cartridge, an electric match, or a combination thereof.

21. The power charge of claim 20 , wherein the igniter comprises thermite or comprises both a metal and an oxidizer.

22. The power charge of claim 21 , wherein the igniter comprises the metal and the oxidizer, the metal and oxidizer further comprising aluminum and iron oxide, aluminum and copper oxide, aluminum and titanium oxide, magnesium and titanium oxide, aluminum and silicon dioxide, magnesium and titanium oxide, aluminum and vanadium oxide, or a combination thereof.

Assignees

• Baker Hughes A Ge Co Llc

Inventors

• Harrington Kevin Edgar
• Palmer Larry
• Xu Zhiyue
• Xu Yingqing
• Zhao Lei
• Meyer Kent

Classifications

• E21B23/065

  setting tool actuated by explosion or gas generating means · CPC title

• F42D1/22 Primary

  Methods for holding or positioning for blasting cartridges or tamping cartridges · CPC title

• F42D1/045

  Arrangements for electric ignition (dynamo-electric generators H02K) · CPC title

• E21B7/007

  Drilling by use of explosives (underwater drilling using explosives E21B7/1245) · CPC title

• E21B23/0414

  using explosives · CPC title