| 微硅水泥浆的研究和应用 |
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| 引用本文： | 张国华 丁士东. 微硅水泥浆的研究和应用[J]. 油田化学, 1994, 11(2): 101-104 |
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| 作者姓名： | 张国华 丁士东 |
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| 作者单位： | 江苏油田开发处 |
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| 摘 要： | 炼铁合金的矿渣微硅主要成分是二氧化硅，是一种凝硬活性材料，掺入微硅的水泥浆在国外已成功地用于漏失层和浅气层的固井作业。本文研究了微硅水泥浆的水灰比设计、密度计算、配方、热稳定性及综合性能，介绍了优选配方在现场的应用。
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| 关 键 词： | 微硅，水泥外掺料，微硅固井水泥浆，配方设计，性能评定，现场应用 |
DEVELOPMENT AND APPLICATION OF MICROSILICA-ADMIXTURED CEMENT SLURRIES |
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| Zhang Guo-Hua. DEVELOPMENT AND APPLICATION OF MICROSILICA-ADMIXTURED CEMENT SLURRIES[J]. Oilfield Chemistry, 1994, 11(2): 101-104 |
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| Authors: | Zhang Guo-Hua |
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| Abstract: | The physical and physico-chemical characteristics of microsilica(a finely particulated by-product of ferroalloy preduction composed mainly of silica) and its functions as active admixture in cement slurriesa are introduced. The equations for calculating water-to-cement ratio and density of the microsilica-admixtured cement slurries are worked out.Five optimized formulations are presented with microsilica content 15-60% and water content 105-250%. These are high temperature resistant, have zero water separation, normal rheological behavior, low water-losses(13-182ml) and give strong and gas tight stone. The field tests in more than 10 well are all successful. |
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| Keywords: | Microsilion Cemeal Admixture Microsilica-Admixtured Cement Slurries for Oil Wells Formulations Performance Evaluation Field Uses |
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