Group 1 - China National Petroleum Corporation (CNPC) has recently obtained a new invention patent titled "Characterization Method, Plate Construction Method, and Measurement Method for Shale Oil Storage Space," with the application number CN202311195681.7 and authorization date set for February 17, 2026 [1] - The patent describes a method for characterizing shale oil storage space, which includes cutting shale samples into regular shapes, conducting helium injection measurements to determine effective porosity, and using nuclear magnetic resonance measurements to ascertain total porosity [1] - In 2023, CNPC has received a total of 342 patent authorizations, representing an increase of 80.95% compared to the same period last year [1] Group 2 - In the first half of 2025, CNPC invested 9.899 billion yuan in research and development, reflecting a year-on-year increase of 2.51% [1] - CNPC has made investments in 1,300 companies and participated in 443 bidding projects [2] - The company holds 105 trademark registrations and 48,574 patent records, along with 168 administrative licenses [2]

Group 1 - The core point of the article is that China Petroleum (601857) has been granted a new invention patent for a method of evaluating carbonate reservoir types after acid fracturing, which enhances its technological capabilities in the oil and gas sector [1] - The patent, titled "A Method for Evaluating the Types of Carbonate Reservoirs After Acid Fracturing in Fractured Caves," was authorized on February 17, 2026, and aims to improve the assessment of reservoir types and the effectiveness of acid fracturing operations [1] - In 2023, China Petroleum has received a total of 342 patent authorizations, representing an increase of 80.95% compared to the same period last year [1] Group 2 - In the first half of 2025, China Petroleum invested 9.899 billion yuan in research and development, which is a year-on-year increase of 2.51% [1] - The company has made investments in 1,300 enterprises and participated in 443 bidding projects, indicating its active engagement in the market [2] - China Petroleum holds 105 trademark registrations and 48,574 patent records, along with 168 administrative licenses, showcasing its extensive intellectual property portfolio [2]

Group 1 - The State Intellectual Property Office of China has granted a patent for a "Directional Well Tubing Retrieval Process" to Daqing Oilfield Co., Ltd. and China National Petroleum Corporation, with the announcement number CN115874958B and application date in August 2021 [1] - Daqing Oilfield Co., Ltd., established in 2000 and located in Daqing City, focuses on oil and gas extraction, with a registered capital of 4,750 million RMB. The company has invested in 34 enterprises, participated in 5,000 bidding projects, holds 11 trademark registrations, 4,843 patents, and possesses 7,409 administrative licenses [1] - China National Petroleum Corporation, founded in 1999 and based in Beijing, also specializes in oil and gas extraction, with a registered capital of 18,302 million RMB. The company has invested in 1,300 enterprises, participated in 443 bidding projects, holds 38 trademark registrations, 5,000 patents, and has 168 administrative licenses [1]

Group 1 - The State Intellectual Property Office of China granted a patent for a "micro gas measurement device in gold pipe thermal simulation experiments" to Daqing Oilfield Co., Ltd. and China National Petroleum Corporation, with the announcement number CN118518178B and application date of February 2023 [1] - Daqing Oilfield Co., Ltd., established in 2000 and located in Daqing City, focuses on oil and gas extraction, with a registered capital of 4,750 million RMB. The company has invested in 34 enterprises, participated in 5,000 bidding projects, holds 11 trademark records, 4,843 patent records, and possesses 7,409 administrative licenses [1] - China National Petroleum Corporation, founded in 1999 and based in Beijing, also specializes in oil and gas extraction, with a registered capital of 18,302.097 million RMB. The company has invested in 1,300 enterprises, participated in 443 bidding projects, holds 38 trademark records, 5,000 patent records, and has 168 administrative licenses [1]

Group 1 - Daqing Oilfield Co., Ltd. and China National Petroleum Corporation have obtained a patent for a method and device for evaluating the mobility of shale oil using two-dimensional nuclear magnetic resonance [1] - Daqing Oilfield Co., Ltd. was established in 2000, located in Daqing City, with a registered capital of 4,750 million RMB [1] - Daqing Oilfield Co., Ltd. has made investments in 34 companies and participated in 5,000 bidding projects, holding 11 trademark registrations and 7,409 administrative licenses [1] Group 2 - China National Petroleum Corporation was established in 1999, located in Beijing, with a registered capital of 18,302.097 million RMB [1] - China National Petroleum Corporation has invested in 1,300 companies, participated in 443 bidding projects, holds 38 trademark registrations, 5,000 patent registrations, and 168 administrative licenses [1]

Group 1 - The core point of the article highlights that China National Petroleum Corporation Bohai Drilling Engineering Co., Ltd. has obtained a patent for a "tail pipe hanger with sand clearing and anti-sand functions," with the authorization announcement number CN120968472B and an application date of October 2025 [1] - China National Petroleum Corporation Bohai Drilling Engineering Co., Ltd. was established in 2008, located in Tianjin, and primarily engages in oil and gas extraction, with a registered capital of 1,621.4 million RMB [1] - The company has participated in 5,000 bidding projects and holds 3,378 patents, along with 10 trademark registrations and 83 administrative licenses [1] Group 2 - China National Petroleum Corporation, established in 1990 and based in Beijing, also focuses on oil and gas extraction, with a registered capital of 48,690 million RMB [1] - This parent company has invested in 110 enterprises, participated in 5,000 bidding projects, and holds 5,000 patents, along with 1,436 trademark registrations and 28 administrative licenses [1]

国家知识产权局信息显示，中国石油天然气集团有限公司、中国石油集团川庆钻探工程有限公司取得一 项名为"大型企业内部自开发信息系统代码的安全测评方法及系统"的专利，授权公告号 CN115964713B，申请日期为2021年10月。 天眼查资料显示，中国石油天然气集团有限公司，成立于1990年，位于北京市，是一家以从事石油和天 然气开采业为主的企业。企业注册资本48690000万人民币。通过天眼查大数据分析，中国石油天然气集 团有限公司共对外投资了110家企业，参与招投标项目5000次，财产线索方面有商标信息1436条，专利 信息5000条，此外企业还拥有行政许可28个。 中国石油集团川庆钻探工程有限公司，成立于2008年，位于成都市，是一家以从事石油和天然气开采业 为主的企业。企业注册资本1160000万人民币。通过天眼查大数据分析，中国石油集团川庆钻探工程有 限公司共对外投资了12家企业，参与招投标项目4298次，专利信息4343条，此外企业还拥有行政许可32 个。 声明：市场有风险，投资需谨慎。本文为AI基于第三方数据生成，仅供参考，不构成个人投资建议。 来源：市场资讯 ...

声明：市场有风险，投资需谨慎。本文为AI基于第三方数据生成，仅供参考，不构成个人投资建议。 来源：市场资讯 天眼查资料显示，大庆油田有限责任公司，成立于2000年，位于大庆市，是一家以从事石油和天然气开 采业为主的企业。企业注册资本4750000万人民币。通过天眼查大数据分析，大庆油田有限责任公司共 对外投资了34家企业，参与招投标项目5000次，财产线索方面有商标信息11条，专利信息4843条，此外 企业还拥有行政许可7409个。 中国石油天然气股份有限公司，成立于1999年，位于北京市，是一家以从事石油和天然气开采业为主的 企业。企业注册资本18302097万人民币。通过天眼查大数据分析，中国石油天然气股份有限公司共对外 投资了1300家企业，参与招投标项目443次，财产线索方面有商标信息38条，专利信息5000条，此外企 业还拥有行政许可168个。 国家知识产权局信息显示，大庆油田有限责任公司、中国石油天然气股份有限公司取得一项名为"一种 页岩原始地层水中离子含量的分析方法和装置"的专利，授权公告号CN121347716B，申请日期为2025年 12月。 ...

Core Viewpoint - The article highlights the critical role of the Liaohe Gas Storage Facility in ensuring stable natural gas supply during the Chinese New Year, emphasizing the dedication of the staff in maintaining operations during peak demand periods [1][2]. Group 1: Operational Highlights - The Liaohe Gas Storage Facility, particularly the Shuangtaizi Gas Storage, is the largest in the Liaohe storage group and serves as a key hub for natural gas supply to seven provinces, including Beijing, Tianjin, and Liaoning [1]. - During the Chinese New Year, the expected total gas extraction is nearly 100 million cubic meters, sufficient to meet the needs of over 20 million households [1]. - Staff members conduct inspections every four hours during their shifts, with each round taking approximately one and a half hours to complete [2]. Group 2: Employee Commitment - The night shift leader, Lü Jiangang, emphasizes the importance of personal involvement in the first inspection of the day for peace of mind, reflecting a strong commitment to safety and operational integrity [2]. - The working conditions during the night shift can be harsh, with temperatures dropping to -10°C, yet employees remain dedicated to their tasks despite the challenges [2]. - Lü Jiangang has been working at the Shuangtaizi Gas Storage for six years, expressing a sense of fulfillment in ensuring that families can enjoy a warm and peaceful New Year, despite personal sacrifices [2].

Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent related to a method for identifying the types and origins of cycloalkane rubber oil components in thermoplastic elastomers, which aims to address challenges in distinguishing and analyzing rubber oil types and origins [1] Group 2 - The patent application, published as CN121522026A, was filed on August 2024 and falls within the field of rubber oil applications [1] - The method involves extracting and purifying the rubber oil, conducting gas chromatography to obtain a chromatogram, and comparing it with reference samples to determine the type and origin of the rubber oil [1] Group 3 - CNPC was established in 1999 and is headquartered in Beijing, primarily engaged in oil and natural gas extraction [1] - The company has a registered capital of 18,302,097 million RMB and has invested in 1,300 enterprises, participated in 443 bidding projects, and holds 5000 patent records [1]