发明名称 |
Expandable lockout apparatus for a subsurface safety valve and method of use |
摘要 |
In one aspect of the invention, a locking assembly for a wellbore valve is provided comprising a cylindrical sleeve insertable into an interior of the valve. After insertion into the valve, the body is expanded into interference with a closing mechanism of the valve, thereby locking the valve in an open position.
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申请公布号 |
US2002040788(A1) |
申请公布日期 |
2002.04.11 |
申请号 |
US20010903753 |
申请日期 |
2001.07.12 |
申请人 |
HILL THOMAS G.;ANDERSON ROBERT JAMES |
发明人 |
HILL THOMAS G.;ANDERSON ROBERT JAMES |
分类号 |
E21B34/00;E21B34/10;E21B43/10;(IPC1-7):E21B34/10 |
主分类号 |
E21B34/00 |
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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