Sou Hu Cai Jing·2025-10-17 19:19Core Viewpoint - China Petroleum (601857) has recently obtained a new invention patent titled "A Method for Selecting Wells for Shale Oil Reservoir Measures," with the application number CN202310737899.4, authorized on October 17, 2025 [1] Group 1: Patent Details - The patent outlines a method for selecting wells for shale oil reservoir measures, which includes several steps: calculating geological factors based on logging parameters, determining engineering factors from the liquid injection volume of each well, and calculating theoretical production based on initial production, annual decline rates, and actual production [2] - This year, China Petroleum has received 1,312 patent authorizations, a decrease of 21.01% compared to the same period last year [2] - The company invested 9.899 billion yuan in research and development in the first half of this year, reflecting a year-on-year increase of 2.51% [2] Group 2: Company Investments and Operations - China Petroleum has made external investments in 1,289 enterprises and participated in 443 bidding projects [3] - The company holds 107 trademark information records and 32,993 patent information records, along with 168 administrative licenses [3]