Sou Hu Cai Jing·2026-01-15 10:04Group 1 - China National Offshore Oil Corporation (CNOOC) has applied for a patent related to a simulation method for fine particle aggregation and migration in porous media, with publication number CN121328250A and application date set for September 2025 [1] - The patent involves a simulation technology that creates a Discrete Element Model (DEM) based on a linear dipole model, fluid in porous media, and multiple coarse and fine particles [1] - The simulation method iteratively calculates porosity, flow rate, and pressure data until certain stopping conditions are met, allowing for the simulation of fine particle aggregation phenomena and migration characteristics [1] Group 2 - CNOOC was established in 1983 and is primarily engaged in oil and gas extraction, with a registered capital of 11,380 million RMB [2] - CNOOC has made investments in 44 companies, participated in 5,000 bidding projects, and holds 280 trademark records and 5,000 patent records [2] - CNOOC Research Institute, founded in 2000, also focuses on oil and gas extraction with a registered capital of 172.707 million RMB, having participated in 855 bidding projects and holding 1,579 patent records [2]