Sou Hu Cai Jing·2026-01-01 03:56Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a method and system to evaluate the oil-water two-phase output situation in production wells, indicating advancements in oil exploration technology [1] Group 2 - The patent application, published under CN121235503A, was filed on June 2024 and involves a method that utilizes temperature and pressure profile testing data to assess the output of oil and water in production wells [1] - The evaluation model developed in the patent aims to determine the liquid production, oil production, water production, and water cut for each segment of the target production well [1] Group 3 - CNPC, established in 1999 and headquartered in Beijing, primarily engages in oil and natural gas extraction, with a registered capital of 18,302,097 million RMB [1] - The company has invested in 1,296 enterprises, participated in 443 bidding projects, and holds 38 trademark records and 5,000 patent records, along with 168 administrative licenses [1]