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US 10,472,939 B2Granted
Setting tool igniter system and method
AssigneeGeodynamics, Inc.
InventorsShelby L. Sullivan, Johnny Joslin, Robert E. Davis, John T. Hardesty
Life of this patent
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Abstract
There is a downhole tool that includes a switch sub having a bore and a bulkhead extending along a longitudinal axis, wherein the bulkhead has a bulkhead bore that fluidly communicates with (i) the bore and (ii) an outside of the switch sub; and an igniter system located inside the bulkhead. The igniter system is configured to ignite an energetic material.
Claims25
A downhole tool comprising:
- a switch sub having a body extending along a longitudinal axis, the body having (1) a bore at a first end and (2) a bulkhead at a second end, wherein the bulkhead has a bulkhead bore that fluidly communicates with (i) the bore and (ii) an outside of the switch sub;
- an igniter system located entirely inside a housing, the housing being configured to slide inside the bulkhead bore, wherein the igniter system has a ground wire and a signal wire that are configured to extend through the bore of the switch sub;
- and
- a nut that attaches to the bulkhead, at the second end of the body, and prevents the housing of the igniter system to slide out of the bulkhead bore,
- wherein the igniter system is configured to ignite an energetic material located inside the housing.
2 more elements
A downhole tool comprising:
- a switch sub configured to be connected between (i) a perforating gun assembly and (ii) an adapter or a setting tool,
- the switch sub having a body extending along a longitudinal axis, the body having (1) a bore at a first end and (2) a bulkhead at a second end, wherein the bulkhead has a bulkhead bore that fluidly communicates with (i) the bore and (ii) an outside of the switch sub;
- an igniter system located entirely inside a housing, the housing being configured to slide inside the switch sub;
- and
- a nut that directly attaches to the bulkhead, at the second end of the body, and prevents the housing of the igniter system to slide out of the bulkhead bore,
- wherein the igniter system is configured to ignite an energetic material located inside the housing.
3 more elements
A method for manufacturing an igniter system for a downhole tool, the method comprising:
- placing the entire igniter system inside a housing;
- sliding the housing in a bulkhead of a switch sub, the switch sub having (1) a bore at a first end and (2) the bulkhead at a second end, and the bore and the bulkhead extending along a longitudinal axis, wherein a bulkhead bore of the bulkhead fluidly communicates with (i) the bore and (ii) an outside of the switch sub;
- attaching a nut directly to an inside wall of the bulkhead to hold the igniter system within the bulkhead bore and to prevent the housing to slide out of the bulkhead bore;
- and
- igniting with the igniter system an energetic material located inside the housing.
2 more elements
Dependencies are inferred from the claim text.