China National Petroleum Corporation applies for patents related to data collection devices, addressing issues of downhole data acquisition and isolation effect assessment.

April 2 News, the State Intellectual Property Office’s information shows that China National Petroleum Corporation has applied for a patent titled “Data Collection Device and Downhole Data Collection Method.” The application publication number is CN121760699A, the application number is CN202510632767.4, the publication date is March 31, 2026, the filing date is May 16, 2025. The inventors are Xue Xiaowei, Lu Hongjun, Wang Shangwei, Ren Guofu, Liu Hanbin, Xie Yonggang, Yang Yixing, Liu Jing, Hu Xiangjun, Yu Zhigang, Luo Yougang, Liu Zhongneng, Guo Siwen, Du Xianfei, Zhou Changjing. The patent agency is Beijing Sanyou Intellectual Property Agency Co., Ltd., patent agents Han Manman and Zhu Kunpeng. The classification numbers are E21B47/26, E21B47/00.

The patent abstract states: The present invention proposes a data collection device and a downhole data collection method. The data collection device includes: a shell, having a first end and a second end located along the central axis, with the outer surfaces of the first and second ends being spherical surfaces of different diameters. The shell can fall into the ball seat of the downhole isolation tool with the first end or second end facing forward, sealing the ball seat; a data acquisition module installed inside the shell, with detection channels on both the first and second ends of the shell, and a first sensor within the detection channel, used to detect fluid parameters on both sides of the downhole isolation tool; a data storage module, electrically connected to the data acquisition module. The invention addresses the problem that existing spherical-type downhole collectors have continuously changing positions during deployment and cannot effectively collect fluid data at both ends of the isolation tool after sealing to evaluate the sealing effect.

China National Petroleum Corporation was established on November 5, 1999, and listed on the Shanghai Stock Exchange on November 5, 2007. Its registered address is Beijing, with offices in Beijing and Hong Kong. It is the largest domestic oil and gas producer and seller, with core businesses including exploration and development of oil and gas, refining, and chemical engineering, possessing resource and technological advantages.

Main businesses include exploration, development, production, transportation, and sales of crude oil and natural gas, new energy businesses, refining of crude oil and petroleum products, sales and trading of refining products and non-oil products, and transportation and sales of natural gas. It belongs to the Shenwan industry category of Petroleum and Petrochemical - Refining, Chemical, and Trade - Refining and Chemical, involving sectors such as polyethylene, Sinopec-related, and oil reform concepts.

By 2025, China National Petroleum’s revenue reached 2.864469 trillion yuan, ranking 1st among 5 industry players, far exceeding the industry average of 1.146327 trillion yuan and the median of 2.86T yuan, surpassing the second-ranked Sinopec with 2.783583 trillion yuan. The main business component is refining products, accounting for 68.87%. Net profit in 2025 was 1.15T yuan, also ranking 1st in the industry, higher than the industry average of 75.56B yuan and the median of 2.78T yuan, well above Sinopec’s 35.25 billion yuan.

Recent patent applications by China National Petroleum Corporation are as follows:

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