Large-width/diameter riser segment lowerable through a rotary of a drilling rig |
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| 申请号 | US15596781 | 申请日 | 2017-05-16 | 公开(公告)号 | US09909379B2 | 公开(公告)日 | 2018-03-06 |
| 申请人 | AMERIFORGE GROUP INC.; | 发明人 | Justin Fraczek; Roland Kennedy; Randy Arthion; Alex Gidman; | ||||
| 摘要 | This disclosure includes auxiliary-line riser segment assemblies (e.g., with isolation units) that are suitable for managed pressure drilling (MPD) and that can be lowered (e.g., when connected to other riser segment assemblies) through a rotary of a drilling rig. Some embodiments are configured to have portions of the auxiliary lines connected (e.g., without welding) below the rotary. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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