Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite lightening material for ultralow-density cement paste and ultralow-density cement paste for low-pressure leakage well
The invention belongs to the field of cement paste for well cementation, and particularly relates to a composite lightening material for ultralow-density cement paste and the ultralow-density cement paste for a low-pressure leakage well. The composite lightening material for the ultra-low-density cement paste is prepared from natural floating beads, closed-cell perlite, artificial hollow glass beads, micro-silicon and ultra-fine beads according to the mass ratio of 1: (1-2): (2-3): 3: (1-2). According to the composite lightening material for the ultra-low-density cement paste, provided by the invention, a novel composite lightening system is formed by utilizing different spherical raw materials, the pressure resistance in the cement paste is better through verification, the stability of the system is excellent, and the consistency of the upper density and the lower density of the cement paste in a shaft can be effectively ensured.
本发明属于固井用水泥浆领域，具体涉及一种超低密度水泥浆用复合减轻材料以及低压漏失井用超低密度水泥浆。该超低密度水泥浆用复合减轻材料由天然漂珠、闭孔珍珠岩、人造空心玻璃微珠、微硅、超细微珠按质量比1:1～2:2～3:3:1～2组成。本发明提供的超低密度水泥浆用复合减轻材料，利用不同材质的球状原料形成一种新的复合减轻体系，经证实在水泥浆中的耐压性更好，而且该体系的稳定性优异，可有效保证水泥浆在井筒内的上下密度一致性。
Composite lightening material for ultralow-density cement paste and ultralow-density cement paste for low-pressure leakage well
The invention belongs to the field of cement paste for well cementation, and particularly relates to a composite lightening material for ultralow-density cement paste and the ultralow-density cement paste for a low-pressure leakage well. The composite lightening material for the ultra-low-density cement paste is prepared from natural floating beads, closed-cell perlite, artificial hollow glass beads, micro-silicon and ultra-fine beads according to the mass ratio of 1: (1-2): (2-3): 3: (1-2). According to the composite lightening material for the ultra-low-density cement paste, provided by the invention, a novel composite lightening system is formed by utilizing different spherical raw materials, the pressure resistance in the cement paste is better through verification, the stability of the system is excellent, and the consistency of the upper density and the lower density of the cement paste in a shaft can be effectively ensured.
本发明属于固井用水泥浆领域，具体涉及一种超低密度水泥浆用复合减轻材料以及低压漏失井用超低密度水泥浆。该超低密度水泥浆用复合减轻材料由天然漂珠、闭孔珍珠岩、人造空心玻璃微珠、微硅、超细微珠按质量比1:1～2:2～3:3:1～2组成。本发明提供的超低密度水泥浆用复合减轻材料，利用不同材质的球状原料形成一种新的复合减轻体系，经证实在水泥浆中的耐压性更好，而且该体系的稳定性优异，可有效保证水泥浆在井筒内的上下密度一致性。
Composite lightening material for ultralow-density cement paste and ultralow-density cement paste for low-pressure leakage well
一种超低密度水泥浆用复合减轻材料以及低压漏失井用超低密度水泥浆
DENG HONGLIN (Autor:in) / WU TIANQIAN (Autor:in) / CHEN FUHU (Autor:in) / JIANG XINLI (Autor:in) / ZHAO WENBIN (Autor:in) / LIU FU (Autor:in) / ZHANG HUI (Autor:in) / HAN JING (Autor:in) / LI MINGZHONG (Autor:in)
22.02.2022
Patent
Elektronische Ressource
Chinesisch
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