China National Petroleum has been granted a patent for a retrievable packer system, featuring a unique design with a lock ring, upper and lower cones, slip device, retrieval mandrel, and slotted retrieval sleeve. The system allows for easy setting and retrieval in boreholes, enhancing operational efficiency. GlobalData’s report on China National Petroleum 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 China National Petroleum, AI assisted CAD was a key innovation area identified from patents. China National Petroleum's grant share as of January 2024 was 71%. Grant share is based on the ratio of number of grants to total number of patents.
Retrievable packer system for borehole operations
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A newly granted patent (Publication Number: US11885196B1) discloses a retrievable packer system designed for downhole operations in boreholes. The system comprises a packer mandrel with a lock ring, upper and lower cones, slip devices, a retrieval mandrel, and slotted retrieval sleeves. The packer system allows for secure positioning in a borehole with the slip device in a set position and the lock ring in a locked position. The method for downhole operations involves transitioning between different positions of the slotted retrieval sleeve and the lock ring to facilitate the retrieval of the packer system after completion of operations.
The packer system's unique design features, such as the arrangement of slip devices, cones, and retrieval sleeves, enable efficient downhole operations. The method outlined in the patent involves precise steps for setting up and retrieving the packer system, ensuring operational success in boreholes. By utilizing pressure and specific movements of components like the upper cone and lock ring, the system allows for controlled positioning and retrieval, enhancing operational efficiency and safety during downhole activities. The patent also details the separation of components within the retrieval mandrel for effective retrieval post-operation, showcasing a comprehensive approach to downhole operations in the oil and gas industry.
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