PETROCHINA(601857) 搜狐财经·2025-05-02 11:36Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a method and system based on tomography inversion for comprehensive interpretation of low measurement data in the field of oil and gas seismic exploration [1] - The patent application was filed on October 2023, and the public announcement number is CN119902267A [1] - The method integrates the advantages of high precision in shallow layer tomography inversion and stability in conventional interpretation methods for deep layers, improving the accuracy and stability of low measurement data interpretation [1] Group 2 - CNPC was established in 1999 and is primarily engaged in gas production and supply, with a registered capital of 18,302,097,000 RMB [2] - The company has invested in 1,280 enterprises and participated in 508 bidding projects, holding 33 trademark records and 5,000 patent records [2] - Additionally, CNPC possesses 168 administrative licenses [2]