Invention Application
WO2006040513A1 CEMENT COMPOSITIONS COMPRISING AROMATIC SULFONATED POLYMERS AND METHODS OF USING THE SAME 审中-公开
包含芳族磺化聚合物的水泥组合物及其使用方法

CEMENT COMPOSITIONS COMPRISING AROMATIC SULFONATED POLYMERS AND METHODS OF USING THE SAME
Abstract:
A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.
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