发明名称 |
Inner guide seal assembly for a ram type BOP system |
摘要 |
An improved ram inner seal assembly used in ram-type BOPs is disclosed. The disclosed invention provides an inner guide seal assembly that comprises a specially shaped guide body and a separate sealing element. When the ram-type BOP is closed, two opposing rams move toward one another, and the inner guide seal assembly guides a wireline (or other tubular) toward the center of the vertical bore through the BOP. The inner guide seal assembly's proximity to the ram body's centerline axis helps ensure that a positive seal is formed and that no damage occurs to the device in the central bore of the BOP. The separate, specially-shaped sealing element can be easily inserted into and removed from the guide body of the inner guide seal assembly for easy replacement.
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申请公布号 |
US2007044976(A1) |
申请公布日期 |
2007.03.01 |
申请号 |
US20050211941 |
申请日期 |
2005.08.24 |
申请人 |
NATIONAL-OILWELL DHT, L.P. |
发明人 |
ISAACKS C. S.;HIEBELER HARRY P.;CORDOVA NOE T.;LIVINGSTON JIMMY G.JR.;GILLEYLEN RUSSELL C.;GHANSYAM HARESH |
分类号 |
E21B33/12 |
主分类号 |
E21B33/12 |
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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