Sou Hu Cai Jing·2026-01-27 12:32Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has obtained a patent for a method and device for preparing shale core samples, which indicates its ongoing innovation in the oil and gas sector [1] - CNPC was established in 1999 and is primarily engaged in oil and gas extraction, with a registered capital of approximately 18.3 billion RMB [1] - The company has made investments in 1,299 enterprises and participated in 443 bidding projects, showcasing its extensive involvement in the industry [1] Group 2 - CNPC holds 38 trademark registrations and has filed for 5,000 patents, reflecting its strong focus on intellectual property [1] - The company possesses 168 administrative licenses, indicating its compliance and operational capabilities within the regulatory framework [1]