Sou Hu Cai Jing·2025-11-12 19:19Group 1 - China National Petroleum Corporation (CNPC) has recently obtained a new invention patent titled "Analysis Method of Core Storage State in Oil Reservoir during Oil Recovery Process," with application number CN202311053772.7 and authorization date set for November 11, 2025 [1] - The patent provides a method to analyze the core storage state during different stages of oil recovery using Material Studio and LAMMPS software, allowing for a clear visualization of the oil/gas/water storage states during CO2 flooding [1] - In 2023, CNPC has received a total of 1,645 patent authorizations, which is a decrease of 7.32% compared to the same period last year, while the company invested CNY 9.899 billion in R&D in the first half of the year, reflecting a year-on-year increase of 2.51% [1] Group 2 - CNPC has made investments in 1,291 enterprises and participated in 443 bidding projects [2] - The company holds 107 trademark registrations and has a total of 47,196 patent records, along with 168 administrative licenses [2]