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US6063738A Foamed well cement slurries, additives and methods 有权
发泡水泥浆,添加剂和方法

Foamed well cement slurries, additives and methods
摘要:
The present invention provides improved foamed well cement slurries, additives and methods. The additives, which foam and stabilize a cement slurry containing fresh water or salt water, are basically comprised of a mixture of an ethoxylated alcohol ether sulfate surfactant, an alkyl or alkene amidopropyl betaine surfactant and an alkyl or alkene amidopropyl dimethyl amine oxide surfactant.
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