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Thermal insulation cement material for upper well section of geothermal well and preparation method of thermal insulation cement material
The invention provides a geothermal well upper well section thermal insulation cement material and a preparation method thereof, and belongs to the technical field of oil well cement. The thermal insulation cement material for the upper well section of the geothermal well is composed of a solid phase component and a liquid phase component, and the solid phase component comprises a cement matrix, a reinforcing material, an early strength agent and a stabilizer; and the liquid phase component is a retarder. The thermal-insulation cement material is good in high-temperature stability, the sedimentation phenomenon is not obvious, the free liquid content is 0%, and the filter loss is 1t; the volume is 50ml. The heat conductivity coefficient and compressive strength at 110 DEG C are respectively 0.1555 W/(m.K), 20.47 MPa (2 days), 0.1589 W/(m.K) and 20.56 MPa (14 days), and the strength is greater than 7 MPa.
本发明提供了一种地热井上部井段保温水泥材料及其制备方法，属于油井水泥技术领域。本发明地热井上部井段保温水泥材料，由固相组分和液相组分组成，其中固相组分包括水泥基体、增强材料、早强剂、稳定剂；液相组分为缓凝剂。本发明保温水泥材料高温稳定性良好，沉降现象不明显，游离液含量为0％，滤失量<50ml。在110℃时的导热系数和抗压强度分别为0.1555W/(m·K)、20.47MPa(2天)，0.1589W/(m·K)、20.56MPa(14天)，强度均大于7MPa。
Thermal insulation cement material for upper well section of geothermal well and preparation method of thermal insulation cement material
The invention provides a geothermal well upper well section thermal insulation cement material and a preparation method thereof, and belongs to the technical field of oil well cement. The thermal insulation cement material for the upper well section of the geothermal well is composed of a solid phase component and a liquid phase component, and the solid phase component comprises a cement matrix, a reinforcing material, an early strength agent and a stabilizer; and the liquid phase component is a retarder. The thermal-insulation cement material is good in high-temperature stability, the sedimentation phenomenon is not obvious, the free liquid content is 0%, and the filter loss is 1t; the volume is 50ml. The heat conductivity coefficient and compressive strength at 110 DEG C are respectively 0.1555 W/(m.K), 20.47 MPa (2 days), 0.1589 W/(m.K) and 20.56 MPa (14 days), and the strength is greater than 7 MPa.
本发明提供了一种地热井上部井段保温水泥材料及其制备方法，属于油井水泥技术领域。本发明地热井上部井段保温水泥材料，由固相组分和液相组分组成，其中固相组分包括水泥基体、增强材料、早强剂、稳定剂；液相组分为缓凝剂。本发明保温水泥材料高温稳定性良好，沉降现象不明显，游离液含量为0％，滤失量<50ml。在110℃时的导热系数和抗压强度分别为0.1555W/(m·K)、20.47MPa(2天)，0.1589W/(m·K)、20.56MPa(14天)，强度均大于7MPa。
Thermal insulation cement material for upper well section of geothermal well and preparation method of thermal insulation cement material
一种地热井上部井段保温水泥材料及其制备方法
WANG SHENG (author) / HE XIN (author) / LI YUJIE (author) / XIANG JIE (author) / REN ZHENGLIAN (author) / ZHENG HAO (author)
2023-11-03
Patent
Electronic Resource
Chinese
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| European Patent Office | 2024
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