Group 1 - The core viewpoint of the news is that Sinopec has applied for a patent related to graphene dispersion liquid and its preparation methods, which is aimed at enhancing cement composite materials used in well cementing technology [1][3] - The patent application was filed by Sinopec and its subsidiary, Sinopec Petroleum Engineering Technology Research Institute, indicating a focus on innovation in material technology within the oil and gas sector [1][2] - The patent details a method involving the use of sulfate electrolyte to intercalate and electrochemically exfoliate graphite flakes to produce graphene dispersion liquid, which is then used to create cement composite materials [1] Group 2 - Sinopec, established in 2000, is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB and has invested in 263 companies [1] - Sinopec Petroleum Engineering Technology Research Institute, founded in 2022, focuses on research and experimental development, with a registered capital of 300 million RMB and has invested in 3 companies [2] - Both companies have significant involvement in various projects, with Sinopec participating in 5,000 bidding projects and the research institute in 689 projects, showcasing their active role in the industry [1][2]