Multi-gun cluster carrier

Patent metadata

Field	Value
Publication number	US-11680468-B2
Application number	US-201917293545-A
Country	US
Kind code	B2
Filing date	Nov 5, 2019
Priority date	Nov 26, 2018
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

A gun assembly for perforating a well, the gun assembly including a single carrier; a first gun cluster, the first gun cluster including first plural shaped charges; and a second gun cluster, the second gun cluster including second plural shaped charges. The first gun cluster and the second gun cluster are placed in the single carrier.

First claim

What is claimed is:

1. A gun assembly for perforating a well, the gun assembly comprising:
a single carrier;
a first gun cluster comprising:
first plural shaped charges;
a sub;
a connecting mechanism comprising:
a slip;
a ramp having first and second inclined surfaces; and
a seal configured to fluidly separate an upstream part of the carrier from a downstream part of the carrier for attaching the sub to the single carrier;
wherein the slip is facing the first inclined surface of the ramp and the seal is facing the second inclined surface of the ramp; and

a carrier tube connected to the sub,
wherein the carrier tube hosts the first plural shaped charges; and

a second gun cluster, the second gun cluster including second plural shaped charges,
wherein the first gun cluster and the second gun cluster are placed in the single carrier.

2. The gun assembly of claim 1 , further comprising:
a nut that forces the slip up the ramp and against the carrier when the nut is threaded to the sub.

3. The gun assembly of claim 2 , wherein the nut also forces the seal up the ramp and against the carrier when the nut is threaded to the sub.

4. The gun assembly of claim 1 , wherein a sub of the second gun cluster is configured to directly fit into a loading tube of the first gun cluster.

5. A gun assembly for perforating a well, the gun assembly comprising:
a single carrier;
a first gun cluster comprising:
first plural shaped charges;
a sub;
a connecting mechanism comprising
a detonation charge located in an internal chamber of the sub; and
a carrier tube connected to the sub,
wherein the carrier tube hosts the first plural shaped charges; and

a second gun cluster, the second gun cluster including second plural shaped charges,
wherein the first gun cluster and the second gun cluster are placed in the single carrier.

6. The gun assembly of claim 5 , wherein the detonation charge is sized to deform outwardly, when fired, side walls of the sub to contact the carrier.

7. The gun assembly of claim 5 , further comprising:
an electrical connection attached to the detonation charge for firing the detonation charge.

8. A gun assembly for perforating a well, the gun assembly comprising:
a single carrier;
a first gun cluster comprising:
first plural shaped charges;
a sub;
a connecting mechanism comprising:
two pistons; and
two slips; and

a carrier tube connected to the sub,
wherein the carrier tube hosts the first plural shaped charges; and

a second gun cluster, the second gun cluster including second plural shaped charges,
wherein the first gun cluster and the second gun cluster are placed in the single carrier.

9. The gun assembly of claim 8 , wherein the two pistons and the two slips are provided in an external recess of the sub.

10. The gun assembly of claim 8 , wherein the single carrier has a port that allows a fluid from outside the single carrier to enter between the two pistons.

11. The gun assembly of claim 10 , wherein the two pistons are configured to move away from each other when the fluid enters through the port, and a movement of the two pistons forces the slips against an internal surface of the single carrier to fix the first gun cluster against the single carrier.

12. A gun assembly for perforating a well, the gun assembly comprising:
a single pipe carrier; and
plural gun clusters placed in the single pipe carrier and attached to an internal surface of the single pipe carrier with a connecting mechanism comprising
a detonation charge placed in an internal chamber of a sub or two pistons and two slips disposed in an outside recess of a sub.

Assignees

• Geodynamics Inc

Inventors

• Roessler Dennis
• Hardesty John

Classifications

• E21B43/1185

  Ignition systems · CPC title

• E21B43/117 Primary

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

• E21B43/119

  Details, e.g. for locating perforating place or direction · CPC title