发明名称 |
BENEFICIATED CLAY VISCOSIFYING ADDITIVES |
摘要 |
Beneficiated clay viscosifying additives may include a low-quality clay and a polymer coated high-quality clay that comprises a high-quality clay at least partially coated with a polymer, wherein the ratio of low-quality clay to high-quality clay is about 90:10 to about 80:20 by weight. Such beneficiated clay viscosifying additives may be used in drilling fluids. |
申请公布号 |
EP2935505(A1) |
申请公布日期 |
2015.10.28 |
申请号 |
EP20140775928 |
申请日期 |
2014.03.18 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
CORTNER, THOMAS S.;LANDIS, CHARLES R.;FRANTZ, ERIC B. |
分类号 |
C09K8/14;C09K8/20;C09K8/24;E21B43/22 |
主分类号 |
C09K8/14 |
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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