| 发明名称 |
Improved additive composition for oil well cementing formulations. |
| 摘要 |
<p>An oil and gas well cementing composition has styrene/butadiene latex and a combination of nonionic surfactants for improved physical properties, especially fluid loss. The composition has no anionic surfactants.</p> |
| 申请公布号 |
EP0572857(A2) |
申请公布日期 |
1993.12.08 |
| 申请号 |
EP19930108061 |
申请日期 |
1993.05.18 |
| 申请人 |
BASF CORPORATION |
发明人 |
GOPALKRISHNAN, SRIDHAR;ROZNOWSKI, MICHAEL |
| 分类号 |
C04B24/12;C04B24/32;C04B28/02;C09K8/46;C09K8/487;(IPC1-7):E21B33/13 |
主分类号 |
C04B24/12 |
| 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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