US 12,460,518 B2
Perforating gun with self-orienting charge cartridge
Jeremy Ursi, Frisco, TX (US); Nathan McFarland, Euless, TX (US); Kerron James, Fort Worth, TX (US); David Knecht, Colleyville, TX (US); Peter Galligan, Grapevine, TX (US); and Varun Garg, Dallas, TX (US)
Assigned to Oso Perforating, LLC, Irving, TX (US)
Filed by Oso Perforating, LLC, Irving, TX (US)
Filed on Sep. 16, 2024, as Appl. No. 18/886,370.
Claims priority of provisional application 63/686,404, filed on Aug. 23, 2024.
Claims priority of provisional application 63/582,880, filed on Sep. 15, 2023.
Prior Publication US 2025/0092764 A1, Mar. 20, 2025
Int. Cl. E21B 43/1185 (2006.01); E21B 43/117 (2006.01); E21B 43/119 (2006.01)
CPC E21B 43/1185 (2013.01) [E21B 43/117 (2013.01); E21B 43/119 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A perforating gun, comprising:
a carrier tube;
a self-orienting charge cartridge extending within the carrier tube, the self-orienting charge cartridge defining opposing first and second end portions and comprising:
a first cap assembly at the first end portion;
a perforating charge;
a bearing; and
a ground conductor comprising a ground spring;
and
a conductor sub coupled to the carrier tube;
wherein the self-orienting charge cartridge is configured so that:
the perforating charge is initiable via both the conductor sub and the first cap assembly;
the bearing rotationally supports the perforating charge within the carrier tube; and
the ground spring provides grounding electrical contact with the conductor sub in order to ground the self-orienting charge cartridge directly to the conductor sub.