发明名称 |
SPACER FLUIDS |
摘要 |
Spacer fluids providing an effective buffer between drilling fluids and cement slurries during well completion. The spacer fluids comprise a sulfonated styrene copolymer dispersant and one or more additional components such as surfactants, viscosifiers arid weighting materials to form a rheologically compatible fluid between the drilling fluid and the cement slurry.
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申请公布号 |
CA2030489(C) |
申请公布日期 |
2003.04.01 |
申请号 |
CA19902030489 |
申请日期 |
1990.11.23 |
申请人 |
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发明人 |
WILSON, WILLIAM N.;BRADSHAW, ROGER D.;WILTON, BONSALL S.;CARPENTER, ROBERT B. |
分类号 |
C04B24/28;C04B28/02;C09K8/40;C09K8/42;C09K8/46;C09K8/60;(IPC1-7):E21B33/14 |
主分类号 |
C04B24/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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