Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a composite oil displacement agent designed for high-temperature and high-salinity oil reservoirs, addressing the limitations of existing oil sulfonate agents in tertiary oil recovery [1] - The patent application, published as CN121293960A, was filed on July 2024, indicating the company's ongoing innovation efforts in enhancing oil recovery techniques [1] - The composite oil displacement agent consists of specific components in a weight ratio of petroleum sulfonate raw fraction oil, fatty acid amide polyoxyethylene ether, and organic alcohol, aimed at improving performance in challenging oil extraction conditions [1] Group 2 - CNPC, established in 1999 and headquartered in Beijing, primarily engages in oil and natural gas extraction, with a registered capital of 18,302,097,000 RMB [2] - The company has made investments in 1,296 enterprises and participated in 443 bidding projects, showcasing its extensive involvement in the industry [2] - CNPC holds 5000 patent records and 38 trademark information entries, along with 168 administrative licenses, reflecting its significant intellectual property and regulatory compliance [2]