Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geothermal well high-strength temporary plugging cement based on surface modified ceramic and preparation method thereof
The invention discloses geothermal well high-strength temporary plugging cement based on surface modified ceramic and a preparation method thereof, and belongs to the technical field of new energy well drilling plugging cement materials. The formula comprises 80-90 parts of G-grade oil well cement, 10-20 parts of surface modified ceramic particles and 0-3 parts of water-soluble polymer fibers/particles. The preparation method comprises the following steps: 1) soaking the porous ceramic particles by using an aqueous solution of a water-soluble polymer polyvinyl alcohol to prepare surface modified ceramic particles; 2) uniformly mixing the raw materials to prepare a dry material; (3) adding the dry material and water into a cement paste stirrer to prepare slurry; and 4) injecting the slurry into a cubic test mold for normal-temperature maintenance, and continuously soaking in hot water at the temperature of not less than 90 DEG C to form the high-strength temporary plugging cement for the geothermal well. According to the invention, the waste ceramic particles are adopted to partially replace oil well cement for vast medium and low temperature geothermal resources, so that the development of geothermal energy is promoted, the emission of greenhouse gases is reduced, and the environment is protected.
本发明公开了基于表面改性陶瓷的地热井高强度暂堵水泥及其制备方法，属于新能源钻井堵漏水泥材料的技术领域。配方包括：G级油井水泥80份‑90份、表面改性陶瓷颗粒10份‑20份、水溶性聚合物纤维/颗粒0份‑3份。制备方法为：1）利用水溶性聚合物聚乙烯醇的水溶液对多孔陶瓷颗粒进行浸泡制作表面改性陶瓷颗粒；2）原料混合均匀制成干料；3）将干料和水添加至水泥净浆搅拌机中制成浆液；4）将浆液注入到立方体试模中进行常温养护后，继续浸泡于热水中形成地热井高强度暂堵水泥，热水的温度不小于90℃。本专利面向广大的中低温地热资源，采用废旧陶瓷颗粒部分替代油井水泥，对推进地热能开发、减少温室气体排放及环境保护有利。
Geothermal well high-strength temporary plugging cement based on surface modified ceramic and preparation method thereof
The invention discloses geothermal well high-strength temporary plugging cement based on surface modified ceramic and a preparation method thereof, and belongs to the technical field of new energy well drilling plugging cement materials. The formula comprises 80-90 parts of G-grade oil well cement, 10-20 parts of surface modified ceramic particles and 0-3 parts of water-soluble polymer fibers/particles. The preparation method comprises the following steps: 1) soaking the porous ceramic particles by using an aqueous solution of a water-soluble polymer polyvinyl alcohol to prepare surface modified ceramic particles; 2) uniformly mixing the raw materials to prepare a dry material; (3) adding the dry material and water into a cement paste stirrer to prepare slurry; and 4) injecting the slurry into a cubic test mold for normal-temperature maintenance, and continuously soaking in hot water at the temperature of not less than 90 DEG C to form the high-strength temporary plugging cement for the geothermal well. According to the invention, the waste ceramic particles are adopted to partially replace oil well cement for vast medium and low temperature geothermal resources, so that the development of geothermal energy is promoted, the emission of greenhouse gases is reduced, and the environment is protected.
本发明公开了基于表面改性陶瓷的地热井高强度暂堵水泥及其制备方法，属于新能源钻井堵漏水泥材料的技术领域。配方包括：G级油井水泥80份‑90份、表面改性陶瓷颗粒10份‑20份、水溶性聚合物纤维/颗粒0份‑3份。制备方法为：1）利用水溶性聚合物聚乙烯醇的水溶液对多孔陶瓷颗粒进行浸泡制作表面改性陶瓷颗粒；2）原料混合均匀制成干料；3）将干料和水添加至水泥净浆搅拌机中制成浆液；4）将浆液注入到立方体试模中进行常温养护后，继续浸泡于热水中形成地热井高强度暂堵水泥，热水的温度不小于90℃。本专利面向广大的中低温地热资源，采用废旧陶瓷颗粒部分替代油井水泥，对推进地热能开发、减少温室气体排放及环境保护有利。
Geothermal well high-strength temporary plugging cement based on surface modified ceramic and preparation method thereof
基于表面改性陶瓷的地热井高强度暂堵水泥及其制备方法
28.03.2023
Patent
Elektronische Ressource
Chinesisch
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