发明名称 |
ROD LOCK FOR RAM BLOWOUT PREVENTERS |
摘要 |
<p>A blowout preventer (100) to hydraulically seal a wellbore includes a housing (102) configured to be positioned above a wellhead and to surround a drillstring (112), a plurality of rams (120) positioned perpendicular to an axis (114) of the drillstring to engage the drillstring (112) and hydraulically isolate an annulus (116) between the wellbore and the drillstring (112) when in a closed position, and a roller lock (350, 250) positioned about a thrust rod (326, 226, 126) of each ram (120) configured to maintain the rams (120) in the closed position.</p> |
申请公布号 |
WO2006132627(A1) |
申请公布日期 |
2006.12.14 |
申请号 |
WO2005US19754 |
申请日期 |
2005.06.06 |
申请人 |
HYDRIL COMPANY LP;JUDGE, ROBERT ARNOLD;BERCKENHOFF, MICHAEL WAYNE |
发明人 |
JUDGE, ROBERT ARNOLD;BERCKENHOFF, MICHAEL WAYNE |
分类号 |
E21B33/06 |
主分类号 |
E21B33/06 |
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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