| 发明名称 |
Apparatus for vibrating a pipe string in a borehole |
| 摘要 |
A jarring apparatus is provided for vibrating a pipe string in a borehole. The apparatus thereto generates at a downhole location longitudinal vibrations in the pipe string in response to flow of fluid through the interior of said string.
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| 申请公布号 |
US4890682(A) |
申请公布日期 |
1990.01.02 |
| 申请号 |
US19890348186 |
申请日期 |
1989.05.05 |
| 申请人 |
SHELL OIL COMPANY |
发明人 |
WORRALL, ROBERT N.;STULEMEIJER, IVO P. J. M. |
| 分类号 |
E21B4/02;E21B4/10;E21B7/24;E21B31/00;E21B31/113;E21B43/04 |
主分类号 |
E21B4/02 |
| 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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