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A platform for research: civil engineering, architecture and urbanism
CO2 corrosion-resistant thermal insulation material for well cementation cement and preparation method of CO2 corrosion-resistant thermal insulation material
The invention discloses a CO2 corrosion-resistant thermal insulation material for well cementation cement and a preparation method of the CO2 corrosion-resistant thermal insulation material, and solves the problems that the existing well cementation cement is easily corroded by acid, low in heat collection and utilization efficiency and serious in heat loss. The CO2 corrosion resistant thermal insulation material for well cementation cement comprises 40-65 wt.% of a thermal insulation matrix, 5-10 wt.% of aluminum titanate, 15-25 wt.% of sodium monofluorophosphate and 15-25 wt.% of amino trimethylene phosphonic acid potassium, wherein the thermal insulation matrix is obtained by mixing hollow ceramic microbeads, waste rock wool board powder, protein rock powder and modified polycarbonate. According to the invention, the high-temperature stability, early strength, toughness and CO2 corrosion resistance of a well cementation cement system can be improved; while the construction performance requirement is met, the heat conductivity coefficient of the well cementation cement stone is reduced, the heat preservation capacity of the cement stone is improved, the heat loss in the geothermal resource exploitation process is effectively reduced, and the geothermal resource utilization rate is improved.
本发明公开一种固井水泥用耐CO2腐蚀保温材料及其制备方法，解决了现有固井水泥易受酸性腐蚀，采热、利用效率低，热量损失严重的问题。固井水泥用耐CO2腐蚀保温材料包括40～65wt.％保温基体、5～10wt.％钛酸铝、15～25wt.％单氟磷酸钠和15～25wt.％氨基三甲叉膦酸钾，所述保温基体由空心陶瓷微珠、废弃岩棉板粉末、蛋白岩粉末和改性聚碳酸酯混合得到。本发明不仅能够提高固井水泥体系的高温稳定性、早期强度、韧性和抗CO2腐蚀的能力；还能降低滤失量，在满足施工性能要求的同时降低固井水泥石的导热系数，提高水泥石的保温能力，有效降低地热资源开采过程中热量的损失，提高地热资源利用率。
CO2 corrosion-resistant thermal insulation material for well cementation cement and preparation method of CO2 corrosion-resistant thermal insulation material
The invention discloses a CO2 corrosion-resistant thermal insulation material for well cementation cement and a preparation method of the CO2 corrosion-resistant thermal insulation material, and solves the problems that the existing well cementation cement is easily corroded by acid, low in heat collection and utilization efficiency and serious in heat loss. The CO2 corrosion resistant thermal insulation material for well cementation cement comprises 40-65 wt.% of a thermal insulation matrix, 5-10 wt.% of aluminum titanate, 15-25 wt.% of sodium monofluorophosphate and 15-25 wt.% of amino trimethylene phosphonic acid potassium, wherein the thermal insulation matrix is obtained by mixing hollow ceramic microbeads, waste rock wool board powder, protein rock powder and modified polycarbonate. According to the invention, the high-temperature stability, early strength, toughness and CO2 corrosion resistance of a well cementation cement system can be improved; while the construction performance requirement is met, the heat conductivity coefficient of the well cementation cement stone is reduced, the heat preservation capacity of the cement stone is improved, the heat loss in the geothermal resource exploitation process is effectively reduced, and the geothermal resource utilization rate is improved.
本发明公开一种固井水泥用耐CO2腐蚀保温材料及其制备方法，解决了现有固井水泥易受酸性腐蚀，采热、利用效率低，热量损失严重的问题。固井水泥用耐CO2腐蚀保温材料包括40～65wt.％保温基体、5～10wt.％钛酸铝、15～25wt.％单氟磷酸钠和15～25wt.％氨基三甲叉膦酸钾，所述保温基体由空心陶瓷微珠、废弃岩棉板粉末、蛋白岩粉末和改性聚碳酸酯混合得到。本发明不仅能够提高固井水泥体系的高温稳定性、早期强度、韧性和抗CO2腐蚀的能力；还能降低滤失量，在满足施工性能要求的同时降低固井水泥石的导热系数，提高水泥石的保温能力，有效降低地热资源开采过程中热量的损失，提高地热资源利用率。
CO2 corrosion-resistant thermal insulation material for well cementation cement and preparation method of CO2 corrosion-resistant thermal insulation material
一种固井水泥用耐CO2腐蚀保温材料及其制备方法
2023-12-19
Patent
Electronic Resource
Chinese
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