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US 12,435,605 B2Granted
Tandem sub for self-orienting perforating system
AssigneeHunting Titan, Inc.
InventorsRyan Bradley, Julio Cesar Veliz
Life of this patent
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Abstract
A method and apparatus for using a tandem sub to connect one or more perforating gun assemblies using a rotational bearing mechanism contained within a sleeve lining the inner diameter in both ends to allow the charge tube assembly to rotate within the gun body and protect the tandem sub from damage when firing the shaped charges.
Claims20
A tandem sub, used to connect one or more perforating gun assemblies, comprising:
- a first rotational mechanism disposed within a first sleeve located at a first end, wherein the first rotational mechanism is adapted to engage with a first charge tube in a first perforating gun and allow the first charge tube to rotate freely;
- a second rotational mechanism disposed within a second sleeve located at a second end, wherein the second rotational mechanism is adapted to engage with a second charge tube in a second perforating gun and allow the second charge tube to rotate freely;
- and an outer tandem housing, wherein the outer housing is adapted to engage a first outer gun housing of the first perforating gun and engage a second outer gun housing of the second perforating gun;
- and a feed through bulkhead installed within a through passage, wherein the feed through bulkhead provides an electric contact between the first perforating gun and the second perforating gun while further providing a pressure seal between the first perforating gun and the second perforating gun.
1 more element
A perforating gun system comprising:
- a first perforating gun with a first charge tube;
- a second perforating gun with a second charge tube;
- a first tandem sub, used to connect one or more perforating gun assemblies, further comprising:
- a first rotational mechanism disposed within a first sleeve located at a first end, wherein the first rotational mechanism is coupled with the first charge tube in the first perforating gun;
- a second rotational mechanism disposed within a second sleeve located at a second end, wherein the second rotational mechanism is coupled with the second charge tube in the second perforating gun;
- and a feed through bulkhead installed within a through passage in the first tandem sub, wherein the feed through bulkhead provides an electric contact between the first perforating gun and the second perforating gun while further providing a pressure seal between the first perforating gun and the second perforating gun.
3 more elements
Dependencies are inferred from the claim text.