| 发明名称 |
РАСКЛИНИВАЮЩИЙ НАПОЛНИТЕЛЬ (ВАРИАНТЫ) |
| 摘要 |
A proppant consists of a core part and shell of a material different from the material of the core part. The shell comprises a soft material attached rigidly to the core part in such a way that the total surface area of the points where the shell and the core part are joined is less than the surface area of the core part. |
| 申请公布号 |
RU2005140358(A) |
申请公布日期 |
2007.06.27 |
| 申请号 |
RU20050140358 |
申请日期 |
2005.12.23 |
| 申请人 |
Шлюмбергер Текнолоджи Б.В. (NL) |
发明人 |
Медведев Анатолий Владимирович (RU);Дин Уилберг (RU);Метью Миллер (RU);Булова Марина Николаевна (RU) |
| 分类号 |
E21B43/00 |
主分类号 |
E21B43/00 |
| 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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