Sou Hu Cai Jing·2026-02-10 09:12Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a method to determine temporary blocking parameters based on the utilization patterns of horizontal well profiles, aimed at improving oil recovery rates in the later stages of oilfield development [1] Group 2 - The patent application, published as CN121473731A, was filed on August 2024 and belongs to the field of oil and gas field development engineering [1] - The method involves several steps including gathering geological and engineering data, calculating erosion ratios, predicting liquid intake capabilities, and optimizing temporary blocking agents [1] - CNPC, established in 1999 and headquartered in Beijing, has a registered capital of 18,302,097 million RMB and has invested in 1,298 companies [2] - The company has participated in 443 bidding projects and holds 5000 patent records along with 38 trademark records [2]