| 发明名称 |
Method and apparatus for transferring material in a wellbore |
| 摘要 |
A method and apparatus for transferring material in a wellbore in which materials are introduced into a casing located in the wellbore and is directed to different areas of an annulus defined between the casing and the wellbore.
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| 申请公布号 |
US2004016546(A1) |
申请公布日期 |
2004.01.29 |
| 申请号 |
US20020205093 |
申请日期 |
2002.07.24 |
| 申请人 |
NGUYEN PHILIP D.;CROOK RONALD J. |
发明人 |
NGUYEN PHILIP D.;CROOK RONALD J. |
| 分类号 |
E21B17/18;E21B33/14;E21B43/04;E21B43/08;(IPC1-7):E21B33/13 |
主分类号 |
E21B17/18 |
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