发明名称 |
Valve with secondary load bearing surface |
摘要 |
A valve (120) for controlling fluid flow therethrough in downhole applications is disclosed. The valve (120) comprises a valve housing having a valve closure mechanism (122) and a valve seat (124) disposed therein. The valve closure mechanism (122) has sealing surface (128) and a secondary load bearing surface (142). The valve seat (124) has a valve seat sealing surface (126) that mates with the sealing surface (128) of the valve closure mechanism (122). The secondary load bearing surface (142) of the valve closure mechanism (122) mates with a valve secondary load bearing surface (134) which may be supported by the valve seat (124).
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申请公布号 |
US6263910(B1) |
申请公布日期 |
2001.07.24 |
申请号 |
US20000483355 |
申请日期 |
2000.01.14 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
DAVIS GLENN RAY;DENNISTOUN STUART MORTON |
分类号 |
E21B34/00;E21B34/06;E21B34/10;F16K1/20;(IPC1-7):F16K15/03;E21C34/10 |
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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