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US 11,697,980 B2Granted
Apparatus and method for electromechanically connecting a plurality of guns for well perforation
OwnerSergio F Goyenecheinventor
Life of this patent
Estimating the term…
Abstract
A perforation gun having a modified pin end for positioning a blast shield between adjacent guns, the blast shield electrically joining movable contact pins and propagating firing signals between while protecting against blast forces from previous explosions. The perforation guns also having a wiring port in the charge carrier and alignment pin for opening and adding detonation circuitry at time of use, positioned within the charge carrier where it is protected from damages caused by rough handling, flooding, vibrations, and blast forces.
Claims19
A drill string for perforating wells comprising:
- a gun assembly comprising:
- a gun body casing, the casing being a hollow cylinder, with an internally threaded female connection, a box connection at one end and a mating externally threaded male connection, a pin connection as the distal end;
- a charge carrier, the carrier being a hollow cylinder, with exterior diameter less than the interior diameter of the casing, and with a length shorter than the casing;
- a plurality of shape charges within the carrier,
- the charges oriented outward toward the interior surface of the casing, and
- inter connected by a detonator cord;
- end caps affixed to the ends of the carrier, co-axially aligning the carrier with the casing;
- a modified pin connection on the casing, wherein the pin end is shorter than the depth of the box connection;
- a blast shield comprising:
- a cylindrical disk of durable material with at least one O-ring around the outer diameter fitting within and sealing against the interior surface of the box connection, secured by the modified pin end of the mated adjacent gun assembly;
- a centrally aligned pass-thru conducting an electrical signal between contact pins projecting outward through the end caps of adjacent gun assemblies;
- a grounding clip electrically connecting the casing to detonation circuitry within the carrier;
- and
- at least one electrically conductive contact pin centrally oriented and extending through an end cap to propagate an electrical signal to the detonation circuitry.
11 more elements
A perforation gun comprising:
- a body casing, the casing being a hollow cylinder, with an internally threaded female connection, a box connection at one end and a mating externally threaded male connection, a pin connection as the distal end;
- a charge carrier, the carrier being a hollow cylinder, with exterior diameter less than the interior diameter of the casing, and with a length shorter than the casing;
- a plurality of shape charges within the carrier,
- the charges oriented outward toward the interior surface of the casing, and
- inter connected by a detonator cord;
- end caps affixed to the ends of the carrier, co-axially aligning the carrier with the casing;
- a modified pin connection on the casing, wherein the pin end is shorter than the depth of the box connection;
- a blast shield comprising:
- a cylindrical disk of durable material with at least one O-ring around the outer diameter fitting within and sealing against the interior surface of the box connection, secured by the modified pin end of the mated adjacent gun assembly, and
- a centrally aligned pass-thru conducting an electrical signal between contact pins projecting outward through the end caps of adjacent gun assemblies;
- and
- a grounding clip electrically connecting the casing to detonation circuitry within the carrier;
- and
- at least one electrically conductive contact pin centrally oriented and extending through an end cap to propagate an electrical signal to the detonation circuitry.
11 more elements
Dependencies are inferred from the claim text.