- 专利标题: HIGH-STRENGTH PORTLAND CEMENT SLURRY FOR ULTRA-HIGH-TEMPERATURE CEMENTING, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
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申请号: EP21893705.0申请日: 2021-10-27
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公开(公告)号: EP4186879B1公开(公告)日: 2024-08-14
- 专利权人: China National Petroleum Corporation,CNPC Engineering Technology R&D Company Limited
- 当前专利权人: China National Petroleum Corporation,CNPC Engineering Technology R&D Company Limited
- 当前专利权人地址: 9 Dongzhimen North Street Dongcheng District; No.1 Building, No.5 Court Huanghe Road Changping District
- 代理机构: Metroconsult Srl
- 优先权: CN 2011313439 2020.11.20
- 国际申请: CN2021126618 2021.10.27
- 国际公布: WO2022105557 2022.05.27
- 主分类号: C04B28/04
- IPC分类号: C04B28/04 ; C04B14/06 ; C04B22/00 ; C09K8/467 ; C09K8/487
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