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High-temperature-resistant well cementation cement system and preparation method thereof
The invention relates to the technical field of well cementation cement preparation, and discloses a high-temperature-resistant well cementation cement system and a preparation method thereof. The system is composed of a solid component and a liquid component, and the weight ratio of the solid component to the liquid component is 1:(0.2-0.9). The solid component contains 25 to 85 weight percent of cement, 4 to 60 weight percent of silica sand and 4 to 60 weight percent of fly ash, and the weight ratio of the silica sand to the fly ash is (0.0714-14):1; and the liquid component contains water and an additive. The cement system not only can solve the problem of strength decline of well cementation cement stone in an ultrahigh-temperature environment, but also can solve the problems of land occupation and environmental pollution caused by fly ash, and promotes high-added-value utilization of industrial solid waste fly ash.
本发明涉及固井水泥制备技术领域，公开了一种耐高温固井水泥体系及其制备方法。所述体系由固体组分和液体组分组成，并且固体组分和液体组分的重量比为1:(0.2‑0.9)；其中，所述固体组分含有25‑85重量％的水泥、4‑60重量％的硅砂和4‑60重量％的粉煤灰，并且所述硅砂和所述粉煤灰的重量比为(0.0714‑14):1；所述液体组分含有水和添加剂。所述水泥体系不仅可以解决超高温环境固井水泥石强度衰退问题，同时可解决粉煤灰带来的土地占用和环境污染问题，促进工业固废粉煤灰的高附加值利用。
High-temperature-resistant well cementation cement system and preparation method thereof
The invention relates to the technical field of well cementation cement preparation, and discloses a high-temperature-resistant well cementation cement system and a preparation method thereof. The system is composed of a solid component and a liquid component, and the weight ratio of the solid component to the liquid component is 1:(0.2-0.9). The solid component contains 25 to 85 weight percent of cement, 4 to 60 weight percent of silica sand and 4 to 60 weight percent of fly ash, and the weight ratio of the silica sand to the fly ash is (0.0714-14):1; and the liquid component contains water and an additive. The cement system not only can solve the problem of strength decline of well cementation cement stone in an ultrahigh-temperature environment, but also can solve the problems of land occupation and environmental pollution caused by fly ash, and promotes high-added-value utilization of industrial solid waste fly ash.
本发明涉及固井水泥制备技术领域，公开了一种耐高温固井水泥体系及其制备方法。所述体系由固体组分和液体组分组成，并且固体组分和液体组分的重量比为1:(0.2‑0.9)；其中，所述固体组分含有25‑85重量％的水泥、4‑60重量％的硅砂和4‑60重量％的粉煤灰，并且所述硅砂和所述粉煤灰的重量比为(0.0714‑14):1；所述液体组分含有水和添加剂。所述水泥体系不仅可以解决超高温环境固井水泥石强度衰退问题，同时可解决粉煤灰带来的土地占用和环境污染问题，促进工业固废粉煤灰的高附加值利用。
High-temperature-resistant well cementation cement system and preparation method thereof
耐高温固井水泥体系及其制备方法
PANG XUEYU (author) / CHENG GUODONG (author) / QIN JIANKUN (author) / SUN LIJUN (author)
2021-11-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2023