发明名称 |
DOWNHOLE TOOL WITH C-RING CLOSURE SEAT |
摘要 |
A downhole tool 100 includes a closure seat 116, 176 for seating with a closure, such as a ball. Shear pins or other connectors temporarily limit axial movement of the closure seat which is initially housed within a restricted diameter portion of the central throughbore in the tool body. The closure seat may be lowered to engage a stop 108, 157, thereby positioning the seat within an enlarged diameter bore portion of the tool and allowing radial expansion of a closure seat to release the ball. |
申请公布号 |
EP2002081(A2) |
申请公布日期 |
2008.12.17 |
申请号 |
EP20070753920 |
申请日期 |
2007.03.23 |
申请人 |
DRIL-QUIP, INC. |
发明人 |
REIMERT, LARRY, E.;WALKER, JAMES, M. |
分类号 |
E21B34/10;E21B23/04;E21B23/06;E21B43/10 |
主分类号 |
E21B34/10 |
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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