发明名称 |
DOWNHOLE TOOL, INCLUDING SHOCK ABSORBER |
摘要 |
<p>In a preferred embodiment, an electronic temperature gauge is carried into a well bore within a pressure-sealed housing which can free fall through a drill string to impact upon a drill bit connected at the bottom of the drill string. A shock absorber is connected at the bottom of the housing to absorb the shock upon impact of the apparatus on the drill bit. The shock absorber has a relatively linearized shock absorbing response in the preferred embodiment. Additional structural features provide further cushioning of the gauge during transit and upon impact.</p> |
申请公布号 |
CA2011139(C) |
申请公布日期 |
1994.10.18 |
申请号 |
CA19902011139 |
申请日期 |
1990.02.28 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
TUCKER, JAMES C.;TILGHMAN, STEPHEN E. |
分类号 |
E21B23/10;E21B47/01;E21B47/06;(IPC1-7):E21B49/00 |
主分类号 |
E21B23/10 |
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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