发明名称 |
Shear blade geometry and method |
摘要 |
A pair of shear blades and a blowout preventer having the pair of shear blades. The shear blades are configured to cut a tubular inside the blowout preventer. The shear blades have different geometries of the front cutting surfaces. One geometry promotes a secure positioning of the tubular relative to the first blade while the second geometry promotes a puncturing of the tubular by the second blade.
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申请公布号 |
US8505870(B2) |
申请公布日期 |
2013.08.13 |
申请号 |
US201113019438 |
申请日期 |
2011.02.02 |
申请人 |
YADAV SEEMANT;MELENDEZ LUIS;HYDRIL USA MANUFACTURING LLC |
发明人 |
YADAV SEEMANT;MELENDEZ LUIS |
分类号 |
E21B33/06 |
主分类号 |
E21B33/06 |
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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