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A platform for research: civil engineering, architecture and urbanism
High-thermal-conductivity and high-thermal-insulation cement for geothermal well and preparation method thereof
The invention belongs to the technical field of geothermal resource development, and particularly relates to high-thermal-conductivity and high-thermal-insulation cement for a geothermal well and a preparation method of the high-thermal-conductivity and high-thermal-insulation cement. The high-thermal-conductivity and high-thermal-insulation cement comprises water, G-grade high-sulfate-resistance oil well cement, natural crystalline flake graphite, silicon carbide and aluminum oxide; the weight ratio of the water to the G-grade high-sulfate-resistance oil well cement is 0.42 to 0.60; the weight ratio of the natural crystalline flake graphite to the G-grade high-sulfate-resistance oil well cement is 0.05 to 0.10; the ratio of the mass sum of the silicon carbide and the aluminum oxide to the weight of the G-grade high-sulfate-resistance oil well cement is 0.02-0.04; the mass ratio of silicon carbide to aluminum oxide is 1: (1-2). The formula is scientific and reasonable in design, the graphite, the silicon carbide and the aluminum oxide are all inorganic materials and are excellent in heat conduction performance, the silicon carbide and the aluminum oxide can further fill pores, compact a matrix and enable the materials to be communicated with one another, and the heat conduction performance of the well cementation material is improved.
本发明属于地热资源开发技术领域，具体涉及一种用于地热井的高导热高保温水泥及其制备方法，该高导热高保材料包括水、G级高抗硫酸盐型油井水泥、天然鳞片石墨、碳化硅和氧化铝；所述水与G级高抗硫酸盐型油井水泥的重量比为：0.42～0.60；所述天然鳞片石墨与G级高抗硫酸盐型油井水泥的重量比为：0.05～0.10；所述碳化硅、氧化铝的质量和与G级高抗硫酸盐型油井水泥的重量比为：0.02～0.04；碳化硅、氧化铝的质量比为1：1～2性。本发明配方设计科学合理，石墨、碳化硅、氧化铝均为无机材料，其材料本身导热性能优异，碳化硅和氧化铝可以起到进一步充填孔隙、密实基体，使材料之间相互连通作用，提高固井材料导热性能。
High-thermal-conductivity and high-thermal-insulation cement for geothermal well and preparation method thereof
The invention belongs to the technical field of geothermal resource development, and particularly relates to high-thermal-conductivity and high-thermal-insulation cement for a geothermal well and a preparation method of the high-thermal-conductivity and high-thermal-insulation cement. The high-thermal-conductivity and high-thermal-insulation cement comprises water, G-grade high-sulfate-resistance oil well cement, natural crystalline flake graphite, silicon carbide and aluminum oxide; the weight ratio of the water to the G-grade high-sulfate-resistance oil well cement is 0.42 to 0.60; the weight ratio of the natural crystalline flake graphite to the G-grade high-sulfate-resistance oil well cement is 0.05 to 0.10; the ratio of the mass sum of the silicon carbide and the aluminum oxide to the weight of the G-grade high-sulfate-resistance oil well cement is 0.02-0.04; the mass ratio of silicon carbide to aluminum oxide is 1: (1-2). The formula is scientific and reasonable in design, the graphite, the silicon carbide and the aluminum oxide are all inorganic materials and are excellent in heat conduction performance, the silicon carbide and the aluminum oxide can further fill pores, compact a matrix and enable the materials to be communicated with one another, and the heat conduction performance of the well cementation material is improved.
本发明属于地热资源开发技术领域，具体涉及一种用于地热井的高导热高保温水泥及其制备方法，该高导热高保材料包括水、G级高抗硫酸盐型油井水泥、天然鳞片石墨、碳化硅和氧化铝；所述水与G级高抗硫酸盐型油井水泥的重量比为：0.42～0.60；所述天然鳞片石墨与G级高抗硫酸盐型油井水泥的重量比为：0.05～0.10；所述碳化硅、氧化铝的质量和与G级高抗硫酸盐型油井水泥的重量比为：0.02～0.04；碳化硅、氧化铝的质量比为1：1～2性。本发明配方设计科学合理，石墨、碳化硅、氧化铝均为无机材料，其材料本身导热性能优异，碳化硅和氧化铝可以起到进一步充填孔隙、密实基体，使材料之间相互连通作用，提高固井材料导热性能。
High-thermal-conductivity and high-thermal-insulation cement for geothermal well and preparation method thereof
一种用于地热井的高导热高保温水泥及其制备方法
2022-04-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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