发明名称 |
MOBILE DRILLING RIG WITH TELESCOPING SUBSTRUCTURE BOXES |
摘要 |
A method includes assembling a telescoping substructure box having first and second substructure boxes in a collapsed configuration by nesting at least a portion of the first substructure box inside of a substantially open interior space defined by a plurality of structural elements that comprise the second substructure box. The assembled telescoping substructure box is transported to a drilling site and telescopically raised from the collapsed transportation configuration to a raised operating configuration for performing drilling operations on a wellbore location of the drilling site by telescopically raising one of the first and second substructure boxes relative to the other one of the first and second substructure boxes. A drilling mast is coupled to and raised above the telescoping substructure box, and drilling operations are performed on the wellbore location with the raised drilling mast. |
申请公布号 |
US2015300038(A1) |
申请公布日期 |
2015.10.22 |
申请号 |
US201514747091 |
申请日期 |
2015.06.23 |
申请人 |
National Oilwell Varco, L.P. |
发明人 |
Thiessen Jay John;Konduc Kameron Wayne;Burlet Donald Leonard |
分类号 |
E04H12/34;E04B1/35;E04H12/18;E21B15/00 |
主分类号 |
E04H12/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Houston TX US |