| 发明名称 | Self-elevating mast employing drive carriage | ||
| 摘要 | A method includes attaching a carriage support to a platform, the platform comprising a platform floor having an opening therein, with the carriage support located proximate the opening, attaching a drive carriage to the carriage support, and operably coupling to the drive carriage a first mast section of a mast comprising a plurality of mast sections, and wherein the first mast section is located above the opening. The method also includes arranging a second mast section below the first mast section, lowering, using the drive carriage, the first mast section through the opening, attaching the first mast section to the second mast section, and raising, using the drive carriage, the first mast section and the second mast section through the opening. In an exemplary embodiment, the platform floor is a rig floor. | ||
| 申请公布号 | US9416595(B2) | 申请公布日期 | 2016.08.16 |
| 申请号 | US201414549104 | 申请日期 | 2014.11.20 |
| 申请人 | Nabors Drilling International Limited | 发明人 | Petrello Anthony;Reddy Padira;Gupta Ashish;Bailey Sean M. |
| 分类号 | E04H12/34;E21B15/00 | 主分类号 | E04H12/34 |
| 代理机构 | Haynes and Boone, LLP | 代理人 | Haynes and Boone, LLP |
| 主权项 | 1. A method, comprising: attaching a carriage support to a platform, the platform comprising a rig floor having an opening therein, with the carriage support located proximate the opening of the rig floor; attaching a drive carriage to the carriage support and the rig floor; operably coupling to the drive carriage a first mast section of a mast comprising a plurality of mast sections, wherein the first mast section is located above the opening of the rig floor; arranging a second mast section below the first mast section while the drive carriage is in a fixed vertical position relative to the carriage support; lowering, using the drive carriage, the first mast section through the opening of the rig floor while the drive carriage remains in the fixed vertical position relative to the carriage support; attaching the first mast section to the second mast section while the drive carriage remains in the fixed vertical position relative to the carriage support; and raising, using the drive carriage, the first mast section and the second mast section through the opening of the rig floor while the drive carriage remains in the fixed vertical position relative to the carriage support. | ||
| 地址 | Hamilton BM | ||