发明名称 |
conjunto de lâmina de um bloco obturador de poço e método para cisalhar um tubular de um furo de poço |
摘要 |
Techniques for shearing a tubular of a wellbore penetrating a subterranean formation with a blowout preventer are provided. The blowout preventer has a housing with a hole therethrough for receiving the tubular. The techniques relate to a blade assembly including a ram block movable between a non-engagement position and an engagement position about the tubular, a blade carried by the ram block for cuttingly engaging the tubular, and a retractable guide carried by the ram block and slidably movable therealong. The restractable guide has a guide surface for urging the tubular into a desired location in the blowout preventer as the ram block moves to the engagement position. |
申请公布号 |
BR112013007713(A2) |
申请公布日期 |
2016.08.09 |
申请号 |
BR20131107713 |
申请日期 |
2011.09.29 |
申请人 |
NATIONAL OILWELL VARCO, L.P. |
发明人 |
CHRISTOPHER DALE JOHNSON;ERIC TREVOR ENSLEY;FRANK BENJAMIN SPRINGETT;SHERN EUGENE PETERS |
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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