Group 1 - China Petroleum & Chemical Corporation (Sinopec) has applied for a patent titled "Method for Synthesizing Ester Compounds," with publication number CN121293133A, filed on July 2024 [1] - The patent involves a method in the field of organic synthesis, specifically for synthesizing ester compounds by mixing organic acid and alcohol raw materials under the action of a homogeneous catalyst, achieving a conversion efficiency improvement through precise control of the mixing index [1] - Sinopec was established in 2000 and is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB, having invested in 268 companies and participated in 5,000 bidding projects [1] Group 2 - Sinopec (Shanghai) Petrochemical Research Institute Co., Ltd. was established in 2022, focusing on research and experimental development, with a registered capital of 498 million RMB [2] - The research institute has invested in 2 companies, participated in 2,637 bidding projects, and holds 859 patent records, along with 133 administrative licenses [2]

Group 1 - The core viewpoint of the news is that China National Petroleum Corporation (CNPC) has applied for a patent related to a method for processing variable offset VSP data, which aims to improve the efficiency of data processing in the oil and gas exploration sector [1]. Group 2 - CNPC was established in 1999 and is headquartered in Beijing, primarily engaged in oil and gas extraction [2]. - The company has a registered capital of 18,302,097,000 RMB and has made investments in 1,296 enterprises [2]. - CNPC has participated in 443 bidding projects and holds 38 trademark registrations and 5,000 patent records, along with 168 administrative licenses [2].

Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a method and device for evaluating well spacing in shale gas wells, indicating a focus on improving efficiency in shale gas extraction [1] Group 2 - The patent application, published as CN121302947A, was filed on July 2024 and outlines a method that includes obtaining original formation pressures of new and adjacent old wells to assess whether the spacing meets preset requirements [1] - CNPC, established in 1999 and headquartered in Beijing, primarily engages in oil and gas extraction, with a registered capital of 18,302,097,000 RMB [1] - The company has invested in 1,296 enterprises, participated in 443 bidding projects, and holds 38 trademark records and 5,000 patent records, along with 168 administrative licenses [1]

Group 1 - China Petroleum & Chemical Corporation (Sinopec) has applied for a patent titled "A Method for Determining Dimers of Polyoxymethylene Dimethyl Ether in Gasoline," with publication number CN121298960A, filed on November 2025 [1] - The patent describes a method involving the construction of a gas chromatography system for separating and detecting components in gasoline, including the use of polar and non-polar columns for analysis [1] - The method includes establishing a quantitative calibration curve and calculating the mass ratio of PODE₂ in gasoline based on the peak area ratio of PODE₂ to an internal standard [1] Group 2 - China Petroleum & Chemical Corporation was established in 2000, located in Beijing, primarily engaged in oil and natural gas extraction, with a registered capital of approximately 12.17 billion RMB [2] - Sinopec has invested in 268 companies, participated in 5000 bidding projects, and holds 5000 patent records along with 45 trademark records [2] - China Petroleum Sales Company, established in 1985, is also based in Beijing, focusing on wholesale, with a registered capital of approximately 2.84 billion RMB [2] - The sales company has invested in 1513 companies, participated in 5000 bidding projects, and holds 235 patent records along with 304 trademark records [2]

Group 1 - The State Intellectual Property Office of China shows that China National Petroleum Corporation (CNPC) and China Petroleum Group Engineering Materials Research Institute have applied for a patent titled "A Method for Qualitative Rapid Detection of Carbon Disulfide in Oilfield Chemical Agents," with publication number CN121275728A and application date of July 2024 [1] - The patent describes a method for qualitatively and rapidly detecting carbon disulfide in oilfield chemical agents using readily available sodium sulfide as a color developer, allowing for visual identification of color changes to determine the presence of carbon disulfide [1] - This method is applicable to colorless, yellow, blue, green, and other cool or light-colored oilfield chemical agents, but not suitable for warm or dark-colored agents like red, purple, brown, or black [1] Group 2 - CNPC, established in 1990 and located in Beijing, primarily engages in oil and natural gas extraction, with a registered capital of 48.69 billion RMB [2] - CNPC has invested in 107 companies, participated in 5,000 bidding projects, and holds 1,447 trademark records and 5,000 patent records, along with 28 administrative licenses [2] - China Petroleum Group Engineering Materials Research Institute, founded in 2021 and based in Xi'an, focuses on specialized equipment manufacturing, with a registered capital of 679.11 million RMB [2] - The institute has invested in 4 companies, participated in 1,687 bidding projects, and holds 15 trademark records and 841 patent records, along with 16 administrative licenses [2]

Group 1 - The State Intellectual Property Office of China shows that China National Petroleum Corporation (CNPC) has applied for a patent titled "A F-T Catalyst Carrier and Its Preparation Method," with publication number CN121288853A and application date of July 2024 [1] - The patent abstract reveals a preparation method for the F-T catalyst carrier, which includes the preparation of γ-AlOOH sol and magnesium zirconium sol, mixing them to obtain a mixed sol, and incorporating silicon carbide [1] - The method enhances the surface roughness of the carrier through physical etching, allowing for uniform hydrophobicity in the internal pores, which aids in the timely desorption of water produced during the F-T synthesis reaction [1] Group 2 - China National Petroleum Corporation was established in 1999 and is based in Beijing, primarily engaged in oil and natural gas extraction [2] - The company has a registered capital of 18,302,097,000 RMB and has made investments in 1,296 enterprises, participated in 443 bidding projects, and holds 5000 patent records [2] - Additionally, CNPC possesses 168 administrative licenses and has 38 trademark records [2]

Group 1 - The State Intellectual Property Office of China shows that Sinopec Limited has applied for a patent titled "Metal Single Atom Modified Indium Oxide Catalytic Material and Its Preparation Method and Application," with publication number CN121288855A and application date of July 2024 [1] - The patent abstract reveals that the invention discloses a catalytic material modified with single metal atoms in indium oxide, where the metal is from Group VIII and exists in a single atom form, demonstrating high reactivity in ammonia decomposition for hydrogen production [1] - Sinopec Limited, established in 2000 and located in Beijing, primarily engages in oil and gas extraction, with a registered capital of 12,173.97 million RMB, having invested in 268 companies and participated in 5,000 bidding projects, holding 45 trademark records and 5,000 patent records [1] Group 2 - Sinopec Petroleum and Chemical Research Institute Co., Ltd., established in 2022 and located in Beijing, focuses on research and experimental development, with a registered capital of 300 million RMB, having invested in 2 companies and participated in 3,895 bidding projects, holding 1,646 patent records [2] - The institute also possesses 293 administrative licenses, indicating its active role in research and development within the industry [2]

Group 1 - The core point of the news is that China National Petroleum Corporation (CNPC) has applied for a patent for an integrated evaluation device and method for the displacement and imbibition effects in tight oil reservoirs, indicating a focus on enhancing oil recovery techniques [1] Group 2 - CNPC was established in 1999 and is primarily engaged in the oil and natural gas extraction industry, with a registered capital of 18,302,097,000 RMB [2] - The company has made investments in 1,296 enterprises and participated in 443 bidding projects, showcasing its extensive involvement in the industry [2] - CNPC holds 38 trademark registrations and 5,000 patent records, along with 168 administrative licenses, reflecting its significant intellectual property portfolio [2]

Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a new technology called "an integrated tubing for synchronous injection and production," which aims to enhance oil extraction efficiency and water injection capabilities in oil wells [1] Group 2 - The patent application was published under the number CN121296051A, with an application date of July 2024 [1] - The integrated tubing consists of three segments: an oil production tubing, an upper water injection tubing, and a lower water injection tubing, which are connected through an insertion method [1] - This technology allows simultaneous oil extraction and dual water injection within a single well, overcoming the limitations of traditional methods that only allow for single-layer water injection [1] - The design aims to improve the effective area of water injection and the lifespan of the tubing by eliminating deformation caused by tubing movement [1] Group 3 - CNPC was established in 1999 and is primarily engaged in oil and natural gas extraction, with a registered capital of 18,302,097,000 RMB [2] - The company has invested in 1,296 enterprises and participated in 443 bidding projects, holding 38 trademark records and 5,000 patent records [2] - Additionally, CNPC possesses 168 administrative licenses [2]

Group 1 - The core point of the news is that China National Petroleum Corporation (CNPC) has applied for a patent related to model training methods and VSP wavefield separation methods, indicating a focus on enhancing oil and gas exploration technologies [1] - The patent application, published as CN121303232A, was filed on July 2024 and aims to utilize deep learning techniques for high-precision VSP wavefield separation [1] - The method involves constructing a deep sparse autoencoder network to process VSP sample data, enabling the separation of different wavefields based on gradient features [1] Group 2 - CNPC was established in 1999 and is primarily engaged in oil and gas extraction, with a registered capital of approximately 18.3 billion RMB [2] - The company has made investments in 1,296 enterprises and participated in 443 bidding projects, showcasing its extensive involvement in the industry [2] - CNPC holds 5000 patent records and 38 trademark information entries, along with 168 administrative licenses, reflecting its active innovation and regulatory compliance [2]