Hunting has been granted a patent for a perforating gun system featuring a pre-wired loading tube assembly. The system includes upper and lower end fittings, electrical connections, and a selective switch with an auto-shunting detonator, enhancing the orientation and functionality of shaped charge loading tubes. GlobalData’s report on Hunting gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Hunting, was a key innovation area identified from patents. Hunting's grant share as of June 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.

Perforating gun system with pre-wired loading tube assembly

Source: United States Patent and Trademark Office (USPTO). Credit: Hunting PLC

The granted patent US11982163B2 describes a perforating gun system designed for use in various applications, including oil and gas exploration. Central to this system is a cylindrical housing that contains a prewired loading tube assembly, which is equipped with upper and lower end fittings. These fittings facilitate electrical connections and house a selective switch linked to a detonator. Notably, the detonator features an auto-shunting mechanism that remains inactive until a mating receptacle is inserted, enhancing safety and operational reliability. The system also includes shaped charges secured within the loading tube, which are complemented by a detonating cord and locking mechanisms to ensure proper functionality.

Additional features of the patent include the grounding of the selective switch to the loading tube and the incorporation of a baffle at the bottom end of the cylindrical housing. The prewired loading tube is designed with insulated wiring and a pressure bulkhead, further contributing to the system's integrity. The claims also detail the configuration of the detonating cord, which can terminate at either end fitting, and the arrangement of the detonator adjacent to the cord in an end-to-end setup. Overall, the patent outlines a comprehensive design aimed at improving the efficiency and safety of perforating operations through advanced electrical and mechanical features.

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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.