Sou Hu Cai Jing·2025-10-28 20:29Core Insights - China National Petroleum Corporation (CNPC) has recently obtained a new invention patent titled "A Method and Device for Predicting In-Situ Fracture Initiation under Overpressure Fluid," with the application number CN202311236316.6 and an authorization date of October 28, 2025 [1] - The patent involves a method to calculate the in-situ fracture initiation based on overburden pressure and normal compaction pore pressure at a predicted depth point [1] - In 2023, CNPC has received a total of 1,435 patent authorizations, representing a decrease of 16.96% compared to the same period last year [1] R&D Investment - In the first half of 2023, CNPC invested CNY 9.899 billion (approximately USD 1.4 billion) in research and development, which is a year-on-year increase of 2.51% [1] Company Activities - CNPC has made investments in 1,290 enterprises and participated in 443 bidding projects [1] - The company holds 107 trademark registrations and has a total of 43,894 patent records [1] - Additionally, CNPC possesses 168 administrative licenses [1]