Sou Hu Cai Jing·2025-04-28 06:13Group 1 - The core viewpoint of the news is that China National Petroleum Corporation (CNPC) has applied for a patent related to a method for calculating the amount of carbon dioxide injected into shale oil wells, which aims to improve the efficiency and scientific basis for CO2 injection in shale oil development [1] Group 2 - The patent application was published under the number CN119884535A and was filed on October 2023 [1] - The invention falls within the field of shale oil development technology and provides a method, device, equipment, and storage medium for calculating the amount of CO2 injected into shale oil wells [1] - The method involves several steps, including obtaining initial data, calculating the length of CO2 absorption segments, determining the spatial volume of CO2 effects, and calculating the optimal CO2 injection amount for the well [1] Group 3 - CNPC was established in 1999 and is primarily engaged in gas production and supply, with a registered capital of 18,302,097,000 RMB [2] - The company has made investments in 1,281 enterprises and has participated in 508 bidding projects [2] - CNPC holds 5000 patent records and has 169 administrative licenses, indicating a strong presence in intellectual property and regulatory compliance [2]