发明名称 |
válvula de segurança para uso em um poço subterrâneo e ferramenta de poço |
摘要 |
A safety valve for use in a subterranean well can include a housing assembly having a flow passage extending longitudinally through the housing assembly. An outer diameter of the housing assembly is eccentric relative to the flow passage. A well tool can include a magnetic coupling between magnet devices. One magnet device includes a series of magnets which are unequally spaced circumferentially about the other magnet device. Another safety valve can include a longitudinally extending flow passage, a closure device which selectively permits and prevents flow through the flow passage, and an outer diameter which is eccentric relative to the flow passage. |
申请公布号 |
BR112013012669(A2) |
申请公布日期 |
2016.09.06 |
申请号 |
BR20131112669 |
申请日期 |
2011.11.11 |
申请人 |
HALLIBURTON ENERGY SERVICES INC |
发明人 |
BRUCE E. SCOTT;JAMES D. VICK;JIMMIE R. WILLIAMSON |
分类号 |
E21B21/10;E21B34/06;E21B34/10 |
主分类号 |
E21B21/10 |
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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