Sou Hu Cai Jing·2026-01-20 03:59Group 1 - The core point of the news is that China National Petroleum Corporation (CNPC) has applied for a patent for a "screw drilling tool stator and screw drilling tool," which is aimed at improving oil drilling equipment technology [1] - The patent application was filed on August 2025, and the publication number is CN121345713A [1] - The design of the screw drilling tool stator includes a stator housing with an intermediate elastic component and a stator liner, utilizing a metal rubber material that enhances both physical properties and elasticity [1] Group 2 - CNPC was established in 1990 and is primarily engaged in oil and natural gas extraction, with a registered capital of 48.69 billion RMB [2] - CNPC has made investments in 107 companies and participated in 5,000 bidding projects, holding 1,442 trademark records and 5,000 patent records [2] - China National Petroleum Engineering Technology Research Institute Co., Ltd. was founded in 2006, focusing on research and experimental development, with a registered capital of approximately 570.39 million RMB [2]