US 12,584,364 B2Granted

Electric igniter for downhole settings tools

AssigneeDBK Industries, LLC

InventorsJeremy Todd Morrison, Nicholas Clayton Fearka

Life of this patent

Estimating the term…

Loading patent…

Abstract

Igniter assemblies for use with setting tools are disclosed. The igniter assemblies have an electronic heating element disposed adjacent to an energetic material within a setting tool. In some embodiments, the electronic heating element is a resistor or a PCB mounted resistor. Electrical connections are attached to the heating element to provide electrical current to activate the heating element. In some instances, the electrical heating element is disposed onto an insulator cap that is coupled to a pressure block attached to the setting tool, and in some instances the electronic heating element is attached to a non-explosive portion and the energetic material is disposed within an explosive portion. When the non-explosive portion and the explosive portion are assembled, the electronic heating element is adjacent to the energetic material. Other assemblies are described.

Claims10

Dependent claims

An igniter assembly for use as an aspect of a setting tool, the igniter assembly comprising:

a non-explosive portion having a non-explosive portion housing;
a printed circuit board at least partially disposed within the non-explosive portion housing;
an electrical heating element coupled to the printed circuit board;
wherein the printed circuit board is electrically coupled to the electrical heating element;
wherein the printed circuit board is electrically coupled to an electrical power source;
an explosive portion having an explosive portion housing;
an energetic material disposed within the explosive portion housing;
wherein the explosive portion is formed with a slot sized and configured to receive a portion of the printed circuit board;
wherein in an assembled position, the explosive portion housing is coupled to the non-explosive portion housing with the printed circuit board partially within the slot and with the electrical heating element adjacent to the energetic material in the explosive portion;
wherein the electrical heating element is activated by application of an electrical current by the electrical power source and the electrical current flows from the electrical power source, to the printed circuit board, and to the electrical heating element;
and
wherein the non-explosive portion housing and the explosive portion housing are separable from each other.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/391,642Filed 20 Dec 2023 · us provisional application
Priority: 28 Dec 2022
Published: US 2024/0218755 A14 Jul 2024
Granted: 24 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

E21B 23/0414
Operated by fluid means, e.g. actuated by explosion: using explosives
E21B 36/04
Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones: using electrical heaters
E21B
Earth or rock drilling