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Additive for controlling cement slurry rheology
Additive for controlling cement slurry rheology
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机译:用于控制水泥浆流变性的添加剂
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摘要
A cement composition for use in a wellbore comprising a cement blend and at least two polyvinylalcohols wherein the polyvinylalcohols have different degrees of hydrolysis such that the rheology of the cement slurry capable of being formed from the composition is stable during temperatures changes.
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