Sou Hu Cai Jing·2026-01-23 21:40Group 1 - The core point of the article is that China Petroleum (601857) has recently obtained a new invention patent titled "Method and Device for Predicting the Downhole Passage of Casing," with the application number CN202511471376.5, authorized on January 23, 2026 [1] - The patent involves a method for predicting the downhole passage of casing, which includes obtaining drilling data for each measurement point, calculating axial force, mechanical resistance, and safety factors, and determining the prediction results based on these calculations [1] - In 2023, China Petroleum has received 152 new patent authorizations, representing a 210.2% increase compared to the same period last year [1] Group 2 - In the first half of 2025, China Petroleum invested 9.899 billion yuan in research and development, which is a 2.51% increase year-on-year [1] - The company has made investments in 1,297 enterprises and participated in 443 bidding projects [2] - China Petroleum holds 105 trademark information entries and 48,144 patent information entries, along with 168 administrative licenses [2]