Geodynamics, Inc.

Owen Oil Tools, Inc.

Johnny Joslin

Robert E Davis

John Thomas Hardesty

Shelby Lee Sullivan

David S Wesson

Dan W Pratt

Aaron Holmberg

Shelby I Sullivan

A downhole system includes a switch sub holding a gun switch and an adapter attached to the switch sub and holding an igniter switch. The gun switch is configured to detonate a detonator, and the igniter switch is configured to ignite an igniter system.

Setting tool igniter system and method

There is an igniter system for igniting an energetic material. The igniter system includes a housing having a bore; an igniter located inside the bore; a ground wire directly connected to the igniter; and a signal wire directly connected to the igniter. The ground wire and the signal wire form an electrical circuit with the igniter for igniting the energetic material.

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.

A tubing and casing cutter is shown which can be assembled in the field from a plurality of pressed segmented pellets of free standing explosive material. The segmented pellets have a liner glued to at least one exposed face thereof. The pellets are glued to a backup plate with two mirror image plates being stacked to form a plate assembly. A plurality of plate assemblies are stacked within a surrounding container to form the cutter. The pressed pellets can also be assembled within a cup-shaped container to form a shaped charge.

Growing community of inventors

Godley, TX, United States of America

Johnny Joslin