发明名称 |
HIGH FREQUENCY SURFACE TREATMENT METHODS AND APPARATUS TO EXTEND DOWNHOLE TOOL SURVIVABILITY |
摘要 |
A downhole device with compressive layer at the surface thereof. Such devices may be particularly well suited for survivability in the face of potentially long term exposure to a downhole environment. Techniques for forming protective compressive layers at the surfaces of such devices may include positioning devices within a chamber for bombardment by high frequency particles. As a manner of enhancing the compressive layer thickness and effectiveness, low temperature conditions may be applied to the device during the high frequency treatment. |
申请公布号 |
US2011272134(A1) |
申请公布日期 |
2011.11.10 |
申请号 |
US20100774809 |
申请日期 |
2010.05.06 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
ROY INDRANIL;MARYA MANUEL;BHAVSAR RASHMI;WILKINSON CHRIS |
分类号 |
E21B43/11;B23K26/073;C23C16/52;H05B6/10 |
主分类号 |
E21B43/11 |
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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