Sou Hu Cai Jing·2025-10-31 19:53Core Insights - China National Petroleum Corporation (CNPC) has recently obtained a new invention patent titled "An Emulsified Oil Displacement Composition and Its Application in Low Permeability Oil Reservoirs" with the application number CN202310937792.4, authorized on October 31, 2025 [1] - The patent describes an emulsified oil displacement composition that includes extensible surfactants, betaine surfactants, additives, and water, which can achieve ultra-low interfacial tension and controllable emulsification strength, with a cost controlled under 10,500 yuan per ton, indicating significant application potential in low permeability oil reservoirs [1] - In 2023, CNPC has received 1,493 new patent authorizations, a decrease of 14.54% compared to the same period last year [1] - For the first half of 2023, CNPC invested 9.899 billion yuan in research and development, reflecting a year-on-year increase of 2.51% [1] - CNPC has made investments in 1,291 companies and participated in 443 bidding projects, with a total of 107 trademark registrations and 47,132 patent records [1]