发明名称 |
EXPANDABLE LOCKOUT FOR A SUBSURFACE SAFETY VALVE |
摘要 |
A locking assembly for a wellbore valve (39) is provided comprising a cylindrical expandable sleeve (10) insertable into an interior of the valve. After insertion into the valve, the body is expanded into interference with a closing mechanism (34) of the valve (39), thereby locking the valve (39) in an open position.
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申请公布号 |
CA2425418(A1) |
申请公布日期 |
2002.04.18 |
申请号 |
CA20012425418 |
申请日期 |
2001.10.08 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
ANDERSON, ROBERT JAMES;HILL, THOMAS G. |
分类号 |
E21B34/00;E21B34/10;E21B43/10;(IPC1-7):E21B34/06;E21B23/02;E21B34/14 |
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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