发明名称 |
DRAW-WORKS AND METHOD FOR OPERATING THE SAME |
摘要 |
There is described a draw-works (1) comprising: - a first drum (4) for storing and reeling an elongated hoisting member (10); - a second drum (8) for storing and reeling said elongated hoisting member (10); and - a rotation means (24, 28) for rotating said first drum (4) and said second drum (8); wherein - at least one of said first drum (4) and said second drum (8) is selectively connect-able to and disconnectable from said rotation means (24, 28). There is also described a method for operating a draw-works (1). |
申请公布号 |
CA2922673(A1) |
申请公布日期 |
2016.09.30 |
申请号 |
CA20162922673 |
申请日期 |
2016.03.03 |
申请人 |
NATIONAL OILWELL VARCO NORWAY AS |
发明人 |
SORENSEN, RUNE;WATSON, TIMOTHY;RAJIC, IVAN |
分类号 |
B66D1/26;B66D1/30;E21B19/02 |
主分类号 |
B66D1/26 |
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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