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A platform for research: civil engineering, architecture and urbanism
Chlorine-free high-temperature-resistant mineral-type early strength agent for cementing cement paste and preparation method of early strength agent
The invention belongs to the field of mineral-type early strength agents for cementing cement paste of oil wells, gas wells and the like, and discloses a chlorine-free high-temperature-resistant mineral-type early strength agent for cementing cement paste and a preparation method of the early strength agent. The early strength agent is used in cementing cement paste of oil wells, gas wells and the like, and the chlorine-free high-temperature-resistant mineral-type early strength agent comprises the following preparation raw materials: alite minerals and silica fume. The obtained chloride-free high-temperature-resistant mineral-type early strength agent can improve the early strength of hardened cement paste set cement at the high temperature of 60-85 DEG C, and can improve the later strength of the hardened cement paste set cement at the same time; the water demand of the cement paste is reduced under the condition that the same flowability of the cement paste is ensured; the workability of mixed cement paste is improved; the durability of hardened cement paste set cement is improved; no pollution is caused to an underground water system; the hardened cement sheath is prevented from aging under a high-temperature condition for a long time; and the early strength agent belongs to a green and environment-friendly technology and product. The preparation method is simple and easy to operate and implement.
本发明属于油井、气井等固井水泥浆矿物型早强剂领域，公开了一种用于固井水泥浆的无氯耐高温矿物型早强剂及其制备方法，用于油井、气井等固井水泥浆中，该无氯耐高温矿物型早强剂包括以下制备原料：阿利特矿物和硅灰；所得无氯耐高温矿物型早强剂在60℃‑85℃高温条件下可以提高硬化水泥浆体水泥石早期强度，同时能提高硬化水泥浆体水泥石后期强度；在保证水泥浆体同样流动性下，降低水泥浆体需水量；改善拌和水泥浆体的和易性；提升硬化水泥浆体水泥石的耐久性；对地下水系无污染；防止硬化水泥环长期在高温条件下出现老化现象；属一种绿色环保技术及产品；其制备方法简单，易操作实施。
Chlorine-free high-temperature-resistant mineral-type early strength agent for cementing cement paste and preparation method of early strength agent
The invention belongs to the field of mineral-type early strength agents for cementing cement paste of oil wells, gas wells and the like, and discloses a chlorine-free high-temperature-resistant mineral-type early strength agent for cementing cement paste and a preparation method of the early strength agent. The early strength agent is used in cementing cement paste of oil wells, gas wells and the like, and the chlorine-free high-temperature-resistant mineral-type early strength agent comprises the following preparation raw materials: alite minerals and silica fume. The obtained chloride-free high-temperature-resistant mineral-type early strength agent can improve the early strength of hardened cement paste set cement at the high temperature of 60-85 DEG C, and can improve the later strength of the hardened cement paste set cement at the same time; the water demand of the cement paste is reduced under the condition that the same flowability of the cement paste is ensured; the workability of mixed cement paste is improved; the durability of hardened cement paste set cement is improved; no pollution is caused to an underground water system; the hardened cement sheath is prevented from aging under a high-temperature condition for a long time; and the early strength agent belongs to a green and environment-friendly technology and product. The preparation method is simple and easy to operate and implement.
本发明属于油井、气井等固井水泥浆矿物型早强剂领域，公开了一种用于固井水泥浆的无氯耐高温矿物型早强剂及其制备方法，用于油井、气井等固井水泥浆中，该无氯耐高温矿物型早强剂包括以下制备原料：阿利特矿物和硅灰；所得无氯耐高温矿物型早强剂在60℃‑85℃高温条件下可以提高硬化水泥浆体水泥石早期强度，同时能提高硬化水泥浆体水泥石后期强度；在保证水泥浆体同样流动性下，降低水泥浆体需水量；改善拌和水泥浆体的和易性；提升硬化水泥浆体水泥石的耐久性；对地下水系无污染；防止硬化水泥环长期在高温条件下出现老化现象；属一种绿色环保技术及产品；其制备方法简单，易操作实施。
Chlorine-free high-temperature-resistant mineral-type early strength agent for cementing cement paste and preparation method of early strength agent
用于固井水泥浆的无氯耐高温矿物型早强剂及其制备方法
LIU WEIFENG (author) / ZHAO YUNPENG (author)
2021-06-18
Patent
Electronic Resource
Chinese
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