A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Water-non-dispersible composition, cement paste containing same, and preparation method and application of water-non-dispersible composition
The invention relates to the technical field of well cementation, and discloses a water-non-dispersible composition, cement paste containing the water-non-dispersible composition, and a preparation method and application of the water-non-dispersible composition. The water-non-dispersible composition comprises the following components in parts by weight: 0.5-5 parts of a microbial polysaccharide high-molecular compound, 5-50 parts of an organic high-molecular compound and 4.5-45 parts of inorganic particles. The water-non-dispersible composition disclosed by the invention has good water-non-dispersibility in a temperature range from room temperature to 180 DEG C, can be used for preparing cement paste, can ensure that particles in the cement paste are not dispersed by formation water, and has no adverse effect on conventional properties such as rheological property, water loss, stability, set cement strength and the like of the cement paste. The invention further provides cement paste containing the water-non-dispersible composition, the cement paste is non-dispersible when encountering water, effective filling of annulus cement paste and structural integrity of a cement sheath can be guaranteed, the cement paste is suitable for high-water-content stratum packing and leakage stratum plugging, and effective packing of high-water-content stratums at different well depths and effective plugging of leakage stratums are achieved.
本发明涉及固井技术领域，公开了水不分散组合物和包含其的水泥浆及其制备方法和应用。该水不分散组合物包括：微生物多糖类高分子化合物0.5‑5重量份、有机高分子化合物5‑50重量份和无机颗粒4.5‑45重量份。本发明的水不分散组合物在室温至180℃的温度范围内都具有良好的遇水不分散性，可用于制备水泥浆，可保证水泥浆中的颗粒不被地层水冲散，同时对水泥浆的流变性、失水、稳定性、水泥石强度等常规性能无不利影响。本发明还提供含有该水不分散组合物的水泥浆，该水泥浆具有遇水不分散性，能够保障环空水泥浆有效充填及水泥环结构完整性，适用于高含水层封隔和漏失层封堵，实现不同井深处高含水层的有效封隔以及漏失层的有效封堵。
Water-non-dispersible composition, cement paste containing same, and preparation method and application of water-non-dispersible composition
The invention relates to the technical field of well cementation, and discloses a water-non-dispersible composition, cement paste containing the water-non-dispersible composition, and a preparation method and application of the water-non-dispersible composition. The water-non-dispersible composition comprises the following components in parts by weight: 0.5-5 parts of a microbial polysaccharide high-molecular compound, 5-50 parts of an organic high-molecular compound and 4.5-45 parts of inorganic particles. The water-non-dispersible composition disclosed by the invention has good water-non-dispersibility in a temperature range from room temperature to 180 DEG C, can be used for preparing cement paste, can ensure that particles in the cement paste are not dispersed by formation water, and has no adverse effect on conventional properties such as rheological property, water loss, stability, set cement strength and the like of the cement paste. The invention further provides cement paste containing the water-non-dispersible composition, the cement paste is non-dispersible when encountering water, effective filling of annulus cement paste and structural integrity of a cement sheath can be guaranteed, the cement paste is suitable for high-water-content stratum packing and leakage stratum plugging, and effective packing of high-water-content stratums at different well depths and effective plugging of leakage stratums are achieved.
本发明涉及固井技术领域，公开了水不分散组合物和包含其的水泥浆及其制备方法和应用。该水不分散组合物包括：微生物多糖类高分子化合物0.5‑5重量份、有机高分子化合物5‑50重量份和无机颗粒4.5‑45重量份。本发明的水不分散组合物在室温至180℃的温度范围内都具有良好的遇水不分散性，可用于制备水泥浆，可保证水泥浆中的颗粒不被地层水冲散，同时对水泥浆的流变性、失水、稳定性、水泥石强度等常规性能无不利影响。本发明还提供含有该水不分散组合物的水泥浆，该水泥浆具有遇水不分散性，能够保障环空水泥浆有效充填及水泥环结构完整性，适用于高含水层封隔和漏失层封堵，实现不同井深处高含水层的有效封隔以及漏失层的有效封堵。
Water-non-dispersible composition, cement paste containing same, and preparation method and application of water-non-dispersible composition
水不分散组合物和包含其的水泥浆及其制备方法应用
GUO XUELI (author) / QU CONGFENG (author) / CHEN LILI (author) / ZHANG HUA (author) / LI CHENGQUAN (author) / ZHOU JINGHONG (author) / YU YONGJIN (author) / XU MING (author) / QI FENGZHONG (author) / WANG XIANGUO (author)
2024-12-27
Patent
Electronic Resource
Chinese
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