Jin Rong Jie·2025-07-19 03:39Group 1 - The State Intellectual Property Office of China has published a patent application by China National Petroleum Corporation (CNPC) for a "Proppant Migration Visualization Simulation System" with publication number CN120331742A, filed on January 2024 [1] - The patent pertains to oil and gas reservoir extraction technology and includes components such as fracture simulation, pressurization, loss simulation, injection, and monitoring [1] - The system aims to provide a foundation for studying the migration patterns of proppants in fractures, simulating natural fracture loss effects, and understanding the relationship between proppant migration and loss [1] Group 2 - China National Petroleum Corporation, established in 1990, is primarily engaged in oil and natural gas extraction, with a registered capital of 48.69 billion RMB [2] - CNPC has invested in 113 companies, participated in 5,000 bidding projects, and holds 1,446 trademark records and 5,000 patent records [2] - China National Petroleum Engineering Technology Research Institute, founded in 2006, focuses on research and experimental development, with a registered capital of approximately 451.16 million RMB [2] - The research institute has invested in 3 companies, participated in 447 bidding projects, and holds 24 trademark records and 2,049 patent records [2]