Sou Hu Cai Jing·2026-01-20 06:03Group 1 - The State Intellectual Property Office of China shows that China National Petroleum Corporation (CNPC) has applied for a patent titled "A Method and Device for Constructing Sedimentary Cycle Identification Models and Predicting Reservoirs," with publication number CN121350605A and an application date of July 2024 [1] - The patent describes a method for constructing sedimentary cycle identification models, which includes obtaining training and validation datasets from a pre-established sample dataset that contains geological feature data and sedimentary cycle labels for various well sections [1] - The method utilizes a machine learning model to predict sedimentary cycles based on geological feature data, aiming to accurately identify self-cycles and other cycles in geological formations, thereby improving the accuracy of reservoir predictions [1] Group 2 - China National Petroleum Corporation was established in 1999 and is located 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, participated in 443 bidding projects, and holds 5000 patent records along with 38 trademark records [2] - Additionally, CNPC possesses 168 administrative licenses, indicating a significant operational footprint in the industry [2]