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A platform for research: civil engineering, architecture and urbanism
Early strength agent for large-temperature-difference well cementation cement slurry and preparation method of early strength agent
The invention discloses an early strength agent for large-temperature-difference well cementation cement slurry and a preparation method of the early strength agent. The early strength agent comprises the following components in parts by weight: 40-60 parts of nano quartz powder; 32 to 45 parts of nano calcined kaolin; 5-10 parts of a dispersant; and 3-5 parts of a silane coupling agent. When the early strength agent is prepared, the dispersing agent and the silane coupling agent are adopted to perform surface modification on the nano quartz powder and the nano calcined kaolin, so that the problem of slow strength development of large-temperature-difference well cementation cement paste in a low-temperature region section is solved, the well cementation quality of a long cementation section is guaranteed, and efficient and safe exploitation of deep oil and gas resources is guaranteed.
本发明公开了一种大温差固井水泥浆用早强剂及其制备方法，所述早强剂包括按重量份数计的以下组分：纳米石英粉40～60份；纳米煅烧高岭土32～45份；分散剂5～10份；硅烷偶联剂3～5份。本发明在制备早强剂时采用分散剂和硅烷偶联剂对纳米石英粉和纳米煅烧高岭土进行表面改性，减少大温差固井水泥浆在低温区域段强度发展缓慢的问题，从而保障长封固段的固井质量，保障深部油气资源的高效安全开采。
Early strength agent for large-temperature-difference well cementation cement slurry and preparation method of early strength agent
The invention discloses an early strength agent for large-temperature-difference well cementation cement slurry and a preparation method of the early strength agent. The early strength agent comprises the following components in parts by weight: 40-60 parts of nano quartz powder; 32 to 45 parts of nano calcined kaolin; 5-10 parts of a dispersant; and 3-5 parts of a silane coupling agent. When the early strength agent is prepared, the dispersing agent and the silane coupling agent are adopted to perform surface modification on the nano quartz powder and the nano calcined kaolin, so that the problem of slow strength development of large-temperature-difference well cementation cement paste in a low-temperature region section is solved, the well cementation quality of a long cementation section is guaranteed, and efficient and safe exploitation of deep oil and gas resources is guaranteed.
本发明公开了一种大温差固井水泥浆用早强剂及其制备方法，所述早强剂包括按重量份数计的以下组分：纳米石英粉40～60份；纳米煅烧高岭土32～45份；分散剂5～10份；硅烷偶联剂3～5份。本发明在制备早强剂时采用分散剂和硅烷偶联剂对纳米石英粉和纳米煅烧高岭土进行表面改性，减少大温差固井水泥浆在低温区域段强度发展缓慢的问题，从而保障长封固段的固井质量，保障深部油气资源的高效安全开采。
Early strength agent for large-temperature-difference well cementation cement slurry and preparation method of early strength agent
一种大温差固井水泥浆用早强剂及其制备方法
LIU HUAN (author) / XUE YUANTAO (author) / ZENG XUELING (author) / GU ANLIN (author) / ZHANG YANGYONG (author)
2024-12-13
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2021