China National Petroleum Corporation applies for patents related to chemical production planning, sorts and filters according to rules, and efficiently obtains low-cost chemical production plans.

March 30 News: Information from the State Intellectual Property Office shows that China National Petroleum Corporation has applied for a patent titled “A Method and Device for Generating a Chemical Product Production Plan.”

The application publication number is CN121745511A, the application number is CN202411361738.0, the publication date is March 27, 2026, the application date is September 27, 2024. The inventors are Luo Fei, Qin Qiaozhen, Dong Fenglian, Guo Gaobo, Mao Xiaoyang, Sun Liang, and Yang Xinyi. The patent agent is Beijing Anxin Fangda Intellectual Property Agency Co., Ltd., and the patent agents are Wu Xiaoxia and Li Ruomu. Classification numbers are G06Q10/0631, G06Q30/0283, G06Q50/04, and G06N3/006.

According to the patent abstract, a chemical product production plan generation method and device, the method includes: obtaining, for multiple chemical products to be produced corresponding to their product grades, respectively, for a target production facility within a target production plan cycle; sorting the production sequence of the product grades according to a predetermined grade switching rule; generating an initial candidate plan; filtering all of the initial candidate plans based on a first switching cost to obtain an initial production plan; adding production process grade codes in the initial production plan based on the grade switching rule to obtain a complete production plan; filtering all of the complete production plans based on a second switching cost to obtain the chemical product production plan for the target production plan cycle. By sorting the production sequence according to the grade switching rule, inserting production process codes, and performing two rounds of cost-based filtering, it can quickly obtain a chemical product production plan with low cost that complies with the grade switching rule, greatly improving the efficiency of obtaining chemical product production plans.

China National Petroleum Corporation was established on November 5, 1999, and was listed on the Shanghai Stock Exchange on November 5, 2007. Its注册地址 is in Beijing, and its office address is in Beijing and Hong Kong. It is a leading enterprise in China’s oil and gas industry. Its core business covers oil and gas exploration and development, refining and petrochemicals, and more, and it has differentiated advantages across the entire industrial chain.

The Shenwan industry classification for China National Petroleum Corporation is Petroleum and Petrochemicals - Refining and Trading - Refining and Petrochemical. Its concept sector includes main holdings such as polyethylene, Sinopec-related, and the oil-to-chemical reform concept. Its principal businesses include the exploration, development, production, transportation, and sales of crude oil and natural gas, as well as the new energy business; refining crude oil and petroleum products, production and sales of chemical products, and new materials business; sales and trading business of refining products and non-oil products; and natural gas transportation and sales.

In terms of 2025 operating performance, China National Petroleum Corporation has performed outstandingly. Operating revenue reached RMB 28644.69 billion, ranking 1/5 in the industry, far above the industry average of RMB 11463.27 billion and the median of RMB 755.63 billion. The second-placed company, Sinopec, had RMB 27835.83 billion. In the composition of principal business, refining products account for 68.87%, natural gas accounts for 42.66%, crude oil accounts for 42.26%, etc. Net profit was RMB 1720.05 billion, also ranking 1/5 in the industry, higher than the industry average of RMB 411.65 billion and the median of RMB 1205.68 million. The second-placed company, Sinopec, was RMB 352.5 billion.

The recent patent status of China National Petroleum Corporation Limited is as follows:

No. Patent name Patent type Legal status Application number Application date Publication (Announcement) number Publication (Announcement) date Inventors
1 A double-sealed blowout-prevention plug device for oil well casing cap and its control system Invention patent Published CN202610194950.5 2026-02-11 CN121738510A 2026-03-27 Xuan Yinglong, Yin Dali, Zhang Guojun, Jin Xianhao, Liu Wei, Sun Guangjie, Gao Gaoting, Jiang Litao
2 Cloud-based integrated method and device for oil and gas industrial software Invention patent Published CN202610186583.4 2026-02-09 CN121681006A 2026-03-17 Chen Jiazhi, Wang Tiecheng, Xiang Jian, Wang Zhiwei, Liu Tongbin, Jin Jiaqi
3 A parameter adjustment method and device for a numerical model of an oil and gas reservoir Invention patent Published CN202610162862.7 2026-02-05 CN121638079A 2026-03-10 Bian Wanjuang, Zhou Bihui, Zhang Qihui, Zhou Daiyu, Wu Cangyuan, Zhang Yongbin, Pei Xuehao
4 A design optimization method and device for an injection-production well network Invention patent Published CN202610162861.2 2026-02-05 CN121659498A 2026-03-13 Bian Wanjuang, Zhou Bihui, Zhang Qihui, Zhou Daiyu, Wu Cangyuan, Zhang Yongbin, Li Jun
5 A method and device for rendering three-dimensional oil and gas water distribution images Invention patent Published CN202610162859.5 2026-02-05 CN121685794A 2026-03-17 Bian Wanjuang, Zhou Bihui, Zhang Qihui, Zhou Daiyu, Wu Cangyuan, Zhang Yongbin, Zhang Yiguo
6 Apparatus, method and system for determining in-situ oil saturation in a shale in place Invention patent Published CN202610156202.8 2026-02-04 CN121633173A 2026-03-10 Sun Longde, Huo Yingdong, Gao Bo, Li Binhuai, Feng Zihui, Shao Hongmei, Huo Qiuli, Liu Jie, Wang Yanyan, Chen Fengxiang, Xu Xiqing, Zheng Binru
7 Attribute value correction method, device, storage medium, and processor for a geological model Invention patent Substantive examination effective, Published CN202610147387.6 2026-02-03 CN121616776A 2026-03-06 Bian Wanjuang, Zhou Bihui, Zhang Qihui, Zhou Daiyu, Wu Cangyuan, Zhang Yongbin, Shao Guangqiang
8 Evaluation method for single-layer potential in oil wells during the ultra-high water-cut period of high- to mid-permeability sandstone reservoirs Invention patent Published CN202610153476.1 2026-02-03 CN121683288A 2026-03-17 Cong Xin, Zhao Yunfei, Guo Junhui, Wang Haitao, Wang Zhiguo, Yang Bingbing, Zheng Xibao, Jiang Xueyan, Yin Shumin, Li He, Zhang Jian, Cong Ridong
9 A method and device for deploying water-control valves based on horizontal wells Invention patent Substantive examination effective, Published CN202610141488.2 2026-02-02 CN121615523A 2026-03-06 Bian Wanjuang, Zhou Bihui, Zhang Qihui, Zhou Daiyu, Wu Cangyuan, Zhang Yongbin, Shao Guangqiang
10 A method for improving the accuracy of evaluation for three types of oil layers heterogeneity Invention patent Published CN202610145311.X 2026-02-02 CN121630378A 2026-03-10 Jiang Lili, Yang Weihua, Su Shanghai, Tang Sheng, Xu Chang, Bai Yuguo, Zuo Lina, Li Gengchang
11 Method and application for preparing a micro/nano foam system stabilized by zinc oxide nanoparticles Invention patent Substantive examination effective, Published CN202610128991.4 2026-01-30 CN121592328A 2026-03-03 Lan Yupbo, Li Jiawei, Bai Junhui, Qi Dongyan, Liu Yong, Cao Sheng, Zhang Jiang, Tong Siqin, Yang Wenlu, Wang Shuang
12 Intelligent temperature control method for electrical heating equipment in injection station sites Invention patent Published CN202610131852.7 2026-01-30 CN121677038A 2026-03-17 Sun Guya, Su Shanghai, Deng Xuezhu, Zuo Lina, Du Xi, Zhao Xiefei, Nie Lianyu, Fan Qiubiao, Zhang Bowen, Liang Hongmiao
13 A magnetic stirring device and method for oilfield laboratory samples with intelligent temperature control Invention patent Published CN202610129724.9 2026-01-30 CN121732029A 2026-03-27 Han Daying, Yang Liu, Su Shanghai, Zhao Lu, Liu Jiliang, Tang Sheng, Jiang Lili, Zuo Lina, Shao Shuai, Zhang Hui
14 An underground in-situ catalytic combustion production method suitable for low-permeability heavy oil, extra-heavy oil, and complex lithology reservoirs Invention patent Substantive examination effective, Published CN202610114436.6 2026-01-28 CN121593740A 2026-03-03 Xiang Hong, Chen Sen, Su Rigu, Guo Wenxuan, Chen Long, Si Jorgho, Chen Dengya, Xiong Jian
15 Optimized method for fire drive development of heavy oil reservoirs Invention patent Published CN202610091526.8 2026-01-23 CN121556830A 2026-02-24 Su Rigu, Chen Long, Xiong Jian, Zou Jun’gang, Wang Ruijing, Si Jorgho, Xiang Hong, Tian Siqi
16 Heating and cooling system and its control method Invention patent Published CN202610093098.2 2026-01-23 CN121655017A 2026-03-13 Li Yuexin, Tian Yanning, Zeng Jiankai, Fang Zhaoh e, Wang Shejiao, Mo Shaoyuan
17 A heat storage device in a portable pressure-fill bed for a well-shaped pile and its operating method Invention patent Published CN202610050214.2 2026-01-15 CN121539992A 2026-02-17 Zhang Wenyao, Chen Bingbing, Fang Zhaoh e, Wang Shejiao
18 Active electrode material for sodium-ion batteries, preparation method, electrode, and sodium-ion battery Invention patent Substantive examination effective, Published CN202610043531.1 2026-01-14 CN121528851A 2026-02-13 Zhao Yu, Chu Pan, Lu Liang, Wang Qiming, Shao Ying
19 Prediction method, device, equipment, medium, and product for coalbed methane adsorption capacity under water-containing conditions Invention patent Substantive examination effective, Published CN202610038436.2 2026-01-13 CN121499301A 2026-02-10 Zhou Lihong, Wang Chengwang, Liu Hongtao, Xiong Xianque, Li Shuguang, Wang Yubin, Chen Gaojie, Liu Xinwei
20 Heat exchange device Invention patent Substantive examination effective, Published CN202610028995.5 2026-01-09 CN121474904A 2026-02-06 Wang Xilian, Xu Guangqi, Zheng Xiaojian, Sun Xiang, Li Jin, Fang Songlin, Dai Sheng, Chen Wei
21 A scheduling and optimization method, device, and equipment for chemical materials Invention patent Substantive examination effective, Published CN202512060283.X 2025-12-31 CN121457995A 2026-02-03 Dong Fenglian, Su Xin, Wei Zhiwei, Sun Xin, Zhang Yonghai, Cao Yanming, Xu Zejin, Wang Hongtao
22 A load adjustment method, device, and equipment for a hydrogen production electrolyzing-water cluster Invention patent Substantive examination effective, Published CN202512032427.0 2025-12-30 CN121440691A 2026-01-30 Tang Shuo, Wu Yan, Chen Shengbin, Ma Mingyan, Wang Yong, Sun Changgeng, Jiang Yong, Bian Siying, Zhao Hongxia
23 Control method and device for polymerization reaction process in butadiene rubber production Invention patent Substantive examination effective, Published CN202512000208.4 2025-12-29 CN121405838A 2026-01-27 Du Yang, Li Ning, Liu Bin, Li Yiqing, Wang Peng, Fan Yuanyuan, Li Chao, An Xiaohui
24 Pellet molding equipment Invention patent Substantive examination effective, Published CN202512000211.6 2025-12-29 CN121424546A 2026-01-30 Ma Ming, Tong Bianjiang, Liu Chunqiao, Du Yang, Jiang Zhiren, Chen Xiaobo, Wang Tiantao, Meng Qiang
25 Oil-based drilling fluid: method, device and equipment for detecting the original oil content of extracted rock cores Invention patent Substantive examination effective, Published CN202511982856.8 2025-12-26 CN121409891A 2026-01-27 Luo Qing, Wang Jiping, Gao Bo, Li Binhuai, Wang Gaowen, Wei Yuyang, Lu Jiamin, Zhang Jinyou, Cao X i, Wang Haonan, Bu Chunyang, Lu X i
26 Method for measuring ancient geothermal temperature and pressure by isotope dating by equal-location isotopes and temperature measurement of cluster isotopes Invention patent Substantive examination effective, Published CN202511982943.3 2025-12-26 CN121409948A 2026-01-27 Huo Yingdong, Gao Bo, Zhang Hong, Li Binhuai, Huo Qiuli, Shao Hongmei, Wang Jiping, Wang Qingzhen, Zhu Huifeng, Liu Jie, Song Yuyang, Xu Xiqing
27 A method for discriminating large pores in shale in place based on nuclear magnetic resonance - pressure mercury injection combined use Invention patent Granted CN202511985878.X 2025-12-26 CN121384761B 2026-02-17 Liu Fenghe, Bai Xuefeng, Zhang Jinyou, Li Xin, Kang Dejiang, Wang Jinwei, Wang Boyang, Wu Wei, Yu D an, Song Yuhang
28 A method for determining injection-production ratio for wells during the effective period of CO2 displacement Invention patent Granted CN202511985784.2 2025-12-26 CN121382139B 2026-02-17 Sun Tianyi, Guo Tianjiao, Bai Junhui, Lan Yupbo, Wang Rui, Qi Dongyan, Wang Jiankai, Chen Pengyi, Zhang Jiuran
29 A method for analyzing and identifying shale rock thin sections using a light microscope - field emission electron microscope combination Invention patent Granted CN202511985887.9 2025-12-26 CN121410236B 2026-03-10 Lu Jiamin, Xue Yunfei, Wang Yongchao, Shao Hongmei, Hong Shuxin, Zhang Hong, Gu Kai, Zhao Wei, Zhang Anda, Ge Zhidan, Zhang Bo, Xu Chunling
30 Device and method for evaluating the fracture stability of deep shale Invention patent Substantive examination effective, Published CN202511971046.2 2025-12-25 CN121384625A 2026-01-23 Wei Yuangjiang, Zhao Qun, Wang Hongyan, Rui Yurun, Li Xiaobo, Zhou Tianqi, Shi Zhensheng, Liu Dexun, Liu Honglin, Sun Shasha, Zhang Miao, Li Xiaoming, Chen Jianye
31 A device and method for measuring in-situ fluid parameters and physical properties of shale oil reservoirs Invention patent Granted CN202511975633.9 2025-12-25 CN121384716B 2026-03-06 Wang Haiyong, Sun Longde, Bai Xuefeng, Li Binhuai, Zhang Jinyou, Feng Zihui, Wang Fenglan, Su Yong, Li Jianzhi, Chen Siqi, Jiang Haiyue, Chen Jianqi
32 An in-situ analysis method for micron-to-nano-scale components of mud shale Invention patent Granted CN202511975424.4 2025-12-25 CN121384760B 2026-03-13 Wang Yizhang, Zeng Huasan, Jin Wei, Li Jing, Wang Shuzhi, Dong Zhongliang, Wang Yusheng, Dai Fei, Jia Yanshuang, Wang Yuku i, Pang Long, Wang Yongchao
33 Method and device for producing atactic and syndiotactic products via a three-stage process Invention patent Published CN202511976275.3 2025-12-25 CN121699040A 2026-03-20 Zhang Yali, Feng Lei, Zhao Jixian, He Peng, Sang Yonghui, Qin Chuan, Wang Ruiqi, Xie Tao
34 A method and device for evaluating sweet spots of a shale entire-volume element three-end member Invention patent Granted CN202511960662.8 2025-12-24 CN121385269B 2026-02-17 Li Binhuai, Sun Longde, Feng Zihui, Zhang Jinyou, Shao Hongmei, Huo Qiuli, Gao Bo, Zhao Wei, Wang Jiping, Xue Yunfei, Pan Huifang, Jiang Hang
35 A coordinated production enhancement method based on energy-storage hydraulic fracturing technology for tight oil reservoirs Invention patent Published CN202511969471.8 2025-12-24 CN121556832A 2026-02-24 Bai Xuefeng, Wang Gang, Han Xue, Zhang Jinyou, Zhan Jianfei, Kong Fanshun, Chen Lei, Huang Liang, Wang Xianhua, Xu Jianhong
36 High-temperature enhancing and toughening oil well cement additive and preparation method Invention patent Granted CN202511966039.3 2025-12-24 CN121377586B 2026-03-13 Li Binhuai, Wang Dongjun, Zu Yu, Chen Jie, Zhang Hong, Zhao Chengkang, Guo Hongyu, Zhu Huifeng, Xue Chunlong, Hu Liu, Li Xiaorong, Wang Weizhong
37 A fault judgment device for a portable pressure transmitter and a fault troubleshooting method thereof Invention patent Substantive examination effective, Published CN202511953978.4 2025-12-23 CN121612489A 2026-03-06 Wang Huaijun, Li Xiaojin, Li J ieying, Jin Huoqing, Sun Jifu, Ren Chuanzhu, Zhou Qiushi, Wang Hongliang, Zhao Wansheng, Lu Laiming
38 A CO2 energy-storage hydraulic fracturing injection-gas parameter design method based on multiple methods Invention patent Published CN202511947129.8 2025-12-23 CN121723923A 2026-03-24 Han Xue, Bai Xuefeng, Wang Gang, Dan Gaofei, Zhang Jinyou, Zhan Jianfei, Chen Lei, Kong Fanshun, Song Zixue, Cha Na
39 Positioning and centering device and method for underground oil tubing Invention patent Substantive examination effective, Published CN202511940508.4 2025-12-22 CN121497320A 2026-02-10 Cai Meng, Ma Baitao, Zhang Hongyan, Jin Yongsong, Ma Junzhe, Zhang Chunhui, Cheng Xinying, Qiao Yabo, Zhang Kun, Hu Mingjia, Mao Qingbo, Zhang Yang
40 Device for driving shale oil into wells and method for evaluating reservoir physical properties Invention patent Granted CN202511936249.8 2025-12-22 CN121363402B 2026-02-17 Li Junhui, Feng Zihui, Jin Wei, Zhang J uhe, Wang Jingchao, Wang Gaowen, Wang Yusheng, Fu Li, Wang Yuku i, Bao Junchi, Dai Fei, Jiang Ge
41 A dynamic optimization method for well shutdown time based on pressure analysis in CO2 energy-storage huff-and-puff Invention patent Substantive examination effective, Published CN202511941822.4 2025-12-22 CN121576049A 2026-02-27 Bai Xuefeng, Luo Qing, Han Xue, He Yingwei, Pang Yanming, Zang Wei, Fan Xiaodong, Wang Chunyan, Peng Jue, Liu Qiang
42 A continuous tubing mechanical control type dual-seal dragging hydraulic fracturing equipment and hydraulic fracturing method Invention patent Substantive examination effective, Published CN202511924351.6 2025-12-19 CN121382152A 2026-01-23 Zhang Hongyan, Ma Baitao, Ma Junzhe, Mu Changhe, Zhang Chunhui, Ma Zih an, Zhang Kun, Mao Qingbo, Gong Du o, Cheng Xinying, Zhang Yang, Meng Qi
43 Dual PID intelligent coordinated adjustment method for an oilfield production formulation station and an injection station Invention patent Substantive examination effective, Published CN202511923534.6 2025-12-19 CN121432846A 2026-01-30 Zou Haocen, Yu Shengtu, Wang Hongliang, Xu Limin, Wu Zanciao, Zhang Nan, Lu Jiping
44 A measurement method and device for oil production quantity in core imbibition experiments based on gas chromatography Invention patent Granted CN202511923038.0 2025-12-19 CN121347717B 2026-03-10 Wu Xiaolin, Hou Zhaowei, Chen Jie, Zhang J uhe, Wang Shuanghua, Li Anjun, Zhang Yue, Du Xiongwen, Zhang Kun, Li Xinxin, Song Zh icui, Wang Ying
45 A sheet-like zinc oxide particle and preparation method, application and foam system Invention patent Published CN202511935632.1 2025-12-19 CN121698379A 2026-03-20 Luo Wenli, Wang Zhenjun, Xu Quan, Wang Xianfeng, Zou Xinyuan, Wang Wenjuan, Wu Wei, Dai Bing, Liang Shisheng, Li Songkai, Hua Shuchang, Wang Zhufeng, Zhou Nan, Zhao Yongfeng, Xue Xiaohu
46 A numerical simulation method and system for usage values of emulsion polymer in oilfields Invention patent Published CN202511924171.8 2025-12-19 CN121706589A 2026-03-20 Liu Mingtau, Zhu Siyuan, Su Yanchang, Wu Zanciao, Zhou Lei, Wei Yuyang, Zhang He
47 Device and method for reusing byproduct low-pressure steam during EVA production Invention patent Substantive examination effective, Published CN202511914931.7 2025-12-18 CN121338665A 2026-01-16 Zheng Liming, Lu Jiang, Yang Feng, Bu Qingsheng, Lü Chunyu, Yin Xinyue, Wang Xinglong, Yang Quanzei
48 Device and method for multi-point injection of a terminator for a gas-phase reactor Invention patent Substantive examination effective, Published CN202511914930.2 2025-12-18 CN121338633A 2026-01-16 Zhang Yali, Qian Jin yun, Feng Lei, Zhao Jixian, Qin Chuan, Tian Rongjun, Yang Fuqiang, Xie Tao
49 A control method and device based on a series of cracking gas compressors in an ethylene plant Invention patent Substantive examination effective, Published CN202511914927.0 2025-12-18 CN121345811A 2026-01-16 Song Zhiq i, Li Zhaolong, Wan Jiachuan, Gu Yang, Ma Guomin, Huang Anhua, Zhao Fei, He Shaolin
50 Box-type filter for use in polyethylene resin production Utility model Granted CN202522682246.8 2025-12-18 CN223810865U 2026-01-20 Yang Quanzei, Lu Yongbang, Zhu Shuguang, Zheng Liming, Kang Jian, Ma Zhigang, Fan Hongjia, Aliyarjiang·Adili

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