发明名称 |
DRILL PIPE PROTECTOR ASSEMBLY |
摘要 |
<p>A drill pipe protector assembly comprising at least one protector sleeve (23) adapted to be mounted to the drill pipe string (7) through a fluid bearing (25) so as to be co-axially rotatable with respect to the drill pipe string (7). A retainer arrangement (21, 35) axially fixes the protector sleeve (23) with respect to the drill pipe string (7). The fluid bearing (25) is constructed according to the principles of a hydrostatic fluid bearing. At least one fluid channel (53) connects the fluid bearing (25) to a fluid path of pressurized drilling fluid flowing within an inner space (51) of the drill pipe string (7).</p> |
申请公布号 |
WO2010022755(A1) |
申请公布日期 |
2010.03.04 |
申请号 |
WO2008EP07103 |
申请日期 |
2008.08.29 |
申请人 |
STATOILHYDRO ASA;TVERLID, STEINAR, WASA |
发明人 |
TVERLID, STEINAR, WASA |
分类号 |
E21B17/10 |
主分类号 |
E21B17/10 |
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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