Sou Hu Cai Jing·2026-01-16 08:15Group 1 - The core point of the article is the application for a patent by China National Petroleum Corporation and China Petroleum Group Chuanqing Drilling Engineering Company for a high-speed shear pulse generator used in drilling measurement, which aims to improve the efficiency and simplicity of drilling operations [1] Group 2 - China National Petroleum Corporation, established in 1990, is primarily engaged in oil and gas extraction, with a registered capital of 48.69 billion RMB. The company has invested in 107 enterprises and participated in 5,000 bidding projects, holding 1,443 trademark records and 5,000 patent records [2] - China Petroleum Group Chuanqing Drilling Engineering Company, founded in 2008, also focuses on oil and gas extraction, with a registered capital of 1.16 billion RMB. The company has invested in 12 enterprises and participated in 4,204 bidding projects, holding 4,326 patent records [2]