Detonator assembly for transportable wellbore perforator

Patent metadata

Field	Value
Publication number	US-10876381-B2
Application number	US-201716323213-A
Country	US
Kind code	B2
Filing date	Nov 14, 2017
Priority date	Nov 14, 2017
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

The disclosed embodiments include a perforating gun assembly. The perforating gun assembly includes a housing and at least one perforating charge disposed within the housing. Additionally, the perforating gun assembly includes a detonating cord disposed within the housing and ballistically coupled to the at least one perforating charge. Further, the perforating gun assembly includes a first coupling location and a second coupling location that are each configured to couple to an additional perforating gun assembly. A detonator assembly disposed within the first coupling location is also included in the perforating gun assembly. A detonator of the detonator assembly is positioned to fire in a direction away from the detonating cord disposed within the housing.

First claim

What is claimed is:

1. A perforating gun assembly, comprising:
a housing;
at least one perforating charge disposed within the housing;
a detonating cord disposed within the housing and ballistically coupled to the at least one perforating charge;
a first coupling location and a second coupling location each configured to couple to an additional perforating gun assembly;
a detonator assembly disposed within the first coupling location, wherein a detonator of the detonator assembly is positioned to fire in a direction away from the detonating cord disposed within the housing, wherein the detonator assembly is individually addressable; and
a ballistic bulkhead separating the detonating cord from the detonator.

2. The assembly of claim 1 , wherein the detonator assembly comprises a detonator control board, and wherein the detonator control board is configured to receive a firing signal and control firing of the detonator.

3. The assembly of claim 1 , wherein the detonator assembly is configured to detonate a second detonating cord of a second perforating gun assembly coupled to the perforating gun assembly.

4. The assembly of claim 1 , comprising a booster coupled to the detonating cord adjacent to the second coupling location.

5. The assembly of claim 1 , comprising a second detonator assembly disposed within the second coupling location.

6. The assembly of claim 5 , wherein the second detonator assembly is disposed within a second perforating gun assembly.

7. The assembly of claim 1 , wherein the at least one perforating charge is configured to punch holes in a casing of a wellbore.

8. The assembly of claim 1 , wherein the detonator assembly is secured within the first coupling location using a threaded connection.

9. An extended perforating gun assembly, comprising:
a first perforating gun section, comprising:
a first housing;
a first set of one or more perforating charges disposed within the first housing;
a first detonating cord disposed within the first housing and ballistically coupled to the first set of the one or more perforating charges;
a first coupling location and a second coupling location;
a first detonator assembly disposed within the first coupling location, wherein a first detonator of the first detonator assembly is configured to detonate the first detonating cord; and
a second detonator assembly disposed within the second coupling location, wherein a second detonator of the second detonator assembly is positioned to fire in a direction away from the first detonating cord disposed within the first housing, wherein the first detonator assembly and the second detonator assembly are individually addressable by control signals; and
a ballistic bulkhead separating the second detonator from the first detonating cord; and

a second perforating gun section, comprising:
a second housing;
a second set of the one or more perforating charges disposed within the second housing;
a second detonating cord disposed within the second housing and ballistically coupled to the second set of the one or more perforating charges, wherein the second detonator of the first perforating gun section is configured to detonate the second detonating cord; and
a third coupling location and a fourth coupling location, wherein the third coupling location is coupled to the second coupling location of the first perforating gun section.

10. The assembly of claim 9 , comprising a third detonator assembly disposed within the fourth coupling location of the second perforating gun section.

11. The assembly of claim 9 , wherein the first detonator assembly is further downhole than the second detonator assembly when the extended perforating gun assembly is deployed within a wellbore.

12. The assembly of claim 9 , wherein the first detonator assembly is further uphole than the second detonator assembly when the extended perforating gun assembly is deployed within a wellbore.

13. The assembly of claim 9 , wherein the first detonator assembly is secured within the first coupling location and the second detonator assembly is secured within the second coupling location each using threaded connections.

14. An extended perforating gun assembly, comprising:
a first perforating gun section, comprising:
a first housing;
a first set of one or more perforating charges disposed within the first housing;
a first detonating cord disposed within the first housing and ballistically coupled to the first set of the one or more perforating charges;
a first coupling location and a second coupling location; and
a first detonator assembly disposed within the first coupling location, wherein a first detonator of the first detonator assembly is positioned to fire in a direction away from the first detonating cord disposed within the first housing;
a ballistic bulkhead separating the first detonator from the first detonator cord; and

a second perforating gun section, comprising:
a second housing;
a second set of the one or more perforating charges disposed within the second housing;
a second detonating cord disposed within the second housing and ballistically coupled to the second set of the one or more perforating charges, wherein the first detonator of the first detonator assembly is configured to detonate the second detonating cord;
a third coupling location and a fourth coupling location, wherein the fourth coupling location is coupled to the first coupling location of the first perforating gun section; and
a second detonator assembly disposed within the third coupling location, wherein a second detonator of the second detonator assembly is positioned to fire in a direction away from the second detonating cord disposed within the second housing;
wherein the first detonator assembly and the second detonator assembly are individually addressable by control signals.

15. The assembly of claim 14 , comprising:
a third perforating gun section, comprising:
a fifth coupling location and a sixth coupling location, wherein the sixth coupling location is coupled to the third coupling location of the second perforating gun section.

16. The assembly of claim 14 , wherein the extended perforating gun assembly is disposed within a well in a top down fire configuration.

17. The assembly of claim 14 , wherein the extended perforating gun assembly is disposed within a well in a bottom up fire configuration.

18. The assembly of claim 14 , wherein the first detonator assembly is further downhole than the second detonator assembly when the extended perforating gun assembly is deployed within a wellbore.

19. The assembly of claim 14 , wherein the first detonator assembly is further uphole than the second detonator assembly when the extended perforating gun assembly is deployed within a wellbore.

20. The assembly of claim 14 , wherein the first detonator assembly is secured within the first coupling location and the second detonator assembly is secured within the second coupling location each using threaded connections.

Assignees

• Halliburton Energy Services Inc

Inventors

• Walters Darren Philip
• Burky Thomas
• Wood Stuart Michael

Classifications

• E21B43/1185 Primary

  Ignition systems · CPC title

• E21B43/117 Primary

  Shaped-charge perforators (E21B43/118 takes precedence) · CPC title

• F42B3/02

  adapted to be united into assemblies · CPC title