发明名称 |
VIBRATORY UNIT FOR DRILLING SYSTEMS |
摘要 |
A down-the-hole vibratory unit for a drilling system includes a casing comprising a fluid inlet, and a plurality of eccentrically weighted rotor assemblies positioned at least partially within the casing and in fluid communication with the inlet, the eccentrically weighted rotor assemblies that are unbalanced relative to a central axis and are configured to rotate in response to a fluid flow directed thereto to apply centrifugal forces to the casing.
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申请公布号 |
US2009173542(A1) |
申请公布日期 |
2009.07.09 |
申请号 |
US20080323304 |
申请日期 |
2008.11.25 |
申请人 |
LONGYEAR TM, INC. |
发明人 |
IBRAHIM GEORGE;DRENTH CHRISTOPHER L.;LACHANCE ANTHONY |
分类号 |
E21B7/24;E21B4/02;E21B4/20;E21B7/00;E21B25/00;E21B49/00;E21B49/02 |
主分类号 |
E21B7/24 |
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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