Hunting has been granted a patent for a method and apparatus that utilizes a heating element embedded in a power charge to facilitate detonation in downhole wellbores. The invention includes a power charge cartridge assembly with an addressable switch and an igniter integrated into its design. GlobalData’s report on Hunting gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Hunting, was a key innovation area identified from patents. Hunting's grant share as of July 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.
Detonating power charges in downhole wellbores
The granted patent US12065913B1 introduces a power charge cartridge assembly designed for use in downhole tools, particularly in oil and gas applications. The assembly features a cylindrical housing that contains an energetic material and an igniter, which includes a heating element. A key component is the addressable switch, which is integral to the power charge and regulates the electrical energy supplied to the heating element. This configuration allows for precise control over the ignition process, enhancing the efficiency and safety of operations conducted in wellbores.
The patent also outlines a method for utilizing the power charge within a downhole tool. This process involves assembling the cartridge, installing the igniter, and coupling the tool to a firing head before lowering it to a predetermined depth in a wellbore. The method emphasizes the importance of electrically charging the cartridge to initiate the power charge, with additional claims detailing the installation of energetic materials, the use of resistive heating elements, and the integration of electrical connections for both hot and ground wires. The claims further specify that the igniter should be positioned close to the power charge, ensuring effective ignition and operation of the downhole tool, which may include a setting tool.
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