发明名称 |
Load ring for lifting by elevator, of casing having no upset |
摘要 |
A cylindrical ring sized to slide over the box end of an oilfield tubular having a given diameter, has a shoulder at one its ends and a sidewall along its length. The sidewall has a circumferential groove about its interior surface housing a band which can be made tight against the exterior surface of the oilfield tubular by a latch accessible through a slot in the sidewall, and which becomes even tighter if the tubular attempts to escape from the band. In a first orientation, the cylindrical ring is used as a load ring. By turning the cylindrical rings upside down, the cylindrical ring is used as a thread protector for the pin end of the tubular.
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申请公布号 |
US2008238117(A1) |
申请公布日期 |
2008.10.02 |
申请号 |
US20080082736 |
申请日期 |
2008.04.14 |
申请人 |
LATIOLAIS BURNEY J;LUTGRING KEITH T;MOODY BRAXTON I;SAICHUK JOHN K M;HAWKINS SAMUEL P |
发明人 |
LATIOLAIS BURNEY J.;LUTGRING KEITH T.;MOODY BRAXTON I;SAICHUK JOHN K. M.;HAWKINS SAMUEL P. |
分类号 |
B66C1/10;E21B19/10 |
主分类号 |
B66C1/10 |
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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