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US 11,846,164 B2Granted
Single or multi-fire semi-automatic perforation system and methods of use
AssigneeDefiant Engineering, LLC
InventorsStanley Jon Blois, Lawrence Gene Griffin, Ian Graham Janke, Cullen Craig Keyes, Gareth Nicholas Jones
Life of this patent
Estimating the term…
Abstract
In one example, a downhole system includes a housing configured to be releasably connected to a tether, projectile fire control circuitry disposed within the housing, a block chamber connected to the housing, and the block chamber includes one or more reloadable chambers each configured to be loaded with a respective projectile, and a firing system operable to directly, or indirectly, control the firing of a projectile, in response to a command issued by the projectile fire control circuitry.
Claims23
A downhole system, comprising:
- a perf gun, comprising:
- a housing configured to be releasably connected to a tether;
- a chamber located in the housing and configured and arranged to receive a projectile, and the chamber is reloadable after the projectile has been fired so as to enable additional projectiles to be successively loaded into the chamber and fired;
- and
- a barrel configured and arranged to receive a projectile directly or indirectly from the chamber, and
- wherein the downhole system is operable to self-pressurize the housing to balance—before, during, and after, firing the projectiles—a pressure inside the housing with a pressure in a wellbore within which the downhole system is deployed.
3 more elements
Dependencies are inferred from the claim text.