发明名称 |
IMPROVEMENTS RELATING TO WELDING AND OTHER OPERATIONS DURING J-LAY PIPELAYING |
摘要 |
<p>A turntable assembly for performing welding or other operations in a pivotably-mounted J-lay tower is disclosed. The assembly includes an annular turntable supported by a base frame to turn about a pipe string in use and a tilt-compensating mechanism acting on the base frame to level the turntable as the tower pivots in use. The tilt-compensating mechanism includes at least one support that is driveable up and down with respect to the tower. In the embodiment disclosed, the support is a carriage movable along an upright track that pivots with the tower.</p> |
申请公布号 |
EP2523850(A1) |
申请公布日期 |
2012.11.21 |
申请号 |
EP20110700866 |
申请日期 |
2011.01.10 |
申请人 |
SUBSEA 7 CONTRACTING (UK) LIMITED |
发明人 |
CRUICKSHANK, JOHN DUNCAN |
分类号 |
B63B35/03;B23K9/00;B23K37/02;F16L1/19;F16L1/20;F16L1/235;F16L9/18 |
主分类号 |
B63B35/03 |
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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