发明名称 |
Clay stabilizer composition for aqueous drilling fluids |
摘要 |
The combination of AlO(OH) and crosslinked polyvinyl alcohol can be added to aqueous drilling fluids and especially clay-based aqueous drilling fluids to prevent formation clays and shales from swelling and dispersing when contacted with aqueous drilling fluids. A potassium salt can be added to improve the result. The potassium salt can also be added by making AlO(OH) from potassium aluminate.
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申请公布号 |
US4447341(A) |
申请公布日期 |
1984.05.08 |
申请号 |
US19820412152 |
申请日期 |
1982.08.27 |
申请人 |
W. R. GRACE & CO. |
发明人 |
BLOCK, JACOB |
分类号 |
C08K3/22;C09K8/22;(IPC1-7):C09K7/00;C09K3/00;E21B3/00 |
主分类号 |
C08K3/22 |
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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