Jin Rong Jie·2026-01-16 04:02Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent related to oilfield reserve assessment and asset impairment warning management, which aims to enhance the management level of oil and gas reserves and assets in aging oilfields [1] Group 2 - The patent application, titled "Method and Device for Fusion Management of Oilfield Reserve Assessment and Asset Impairment Warning," was published under CN121329461A and was filed on July 2024 [1] - The method involves obtaining basic data, segmenting oilfields into multiple sub-units, calculating the remaining economically recoverable reserves for each sub-unit, and determining key monitoring units based on higher depletion rates [1] - The patent also includes calculating the reserve value of key monitoring units as the present value of future net cash flows and issuing warning information for units experiencing asset impairment [1] Group 3 - CNPC was established in 1999 and is primarily engaged in the oil and natural gas extraction industry, with a registered capital of 18,302,097,000 RMB [2] - The company has invested in 1,296 enterprises and participated in 443 bidding projects, holding 38 trademark records and 5,000 patent records, along with 168 administrative licenses [2]