Sou Hu Cai Jing·2026-02-07 00:51Group 1 - The core viewpoint of the article highlights that China National Petroleum Corporation (CNPC) has obtained a patent for a solution to address abnormal gelling and thickening time of high-temperature cement slurry, with the patent granted under announcement number CN117777970B and the application date being September 2022 [1] Group 2 - CNPC was established in 1990 and is headquartered in Beijing, primarily engaged in oil and gas extraction, with a registered capital of 48.69 billion RMB [1] - CNPC has made investments in 110 companies and participated in 5,000 bidding projects, holding 1,436 trademark records and 5,000 patent records, along with 28 administrative licenses [1] Group 3 - China National Petroleum Engineering Technology Research Institute Co., Ltd. was founded in 2006 and is also based in Beijing, focusing on research and experimental development, with a registered capital of approximately 570.39 million RMB [1] - The research institute has invested in 4 companies, participated in 586 bidding projects, and holds 33 trademark records and 2,254 patent records, in addition to 8 administrative licenses [1]