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Chemically crosslinked polyvinyl alcohol (PVA), and its applications as a fluid loss control agent in oil fluids
Chemically crosslinked polyvinyl alcohol (PVA), and its applications as a fluid loss control agent in oil fluids
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机译:化学交联聚乙烯醇(PVA)及其在油液中作为失水控制剂的应用
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摘要
The invention relates to a new, chemically crosslinked PVA. Its application is that of a fluid loss control agent in fluids used in the oil industry, in particular cement slurries, separating fluids, or "spacers", and drilling muds. Its advantages are that it does not delay the setting of the cement, that it has high temperature properties that are relatively insensitive to external conditions.
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