发明名称 |
DOWNHOLE DRILLING TOOLS INCLUDING LOW FRICTION GAGE PADS WITH ROTATABLE BALLS POSITIONED THEREIN |
摘要 |
In accordance with some embodiments of the present disclosure, a downhole drilling tool comprises a bit body, a blade on an exterior portion of the bit body, and a gage pad on the blade. The gage pad includes a ball retainer and a ball located in the ball retainer such that an exposed portion of the ball is positioned to contact a wellbore and rotate in response to frictional engagement with the wellbore. |
申请公布号 |
CA2929882(C) |
申请公布日期 |
2017.01.17 |
申请号 |
CA20132929882 |
申请日期 |
2013.12.13 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
CHEN, SHILIN |
分类号 |
E21B10/42;E21B10/43;E21B12/00 |
主分类号 |
E21B10/42 |
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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