Derrickless tubular servicing system and method
US8371790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2009 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Dec 10, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/155
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A derrickless system for servicing tubulars at a wellhead has a first tubular handling apparatus with a gripper positioned adjacent the wellhead where the gripper grips a surface of one of the tubulars, a second tubular handling apparatus with a gripper positioned adjacent the wellhead where the gripper grips a surface of another of the tubulars, and a slip assembly positioned in the wellhead. The slip assembly has a wedge bowl positioned at the wellhead that is suitable for receiving the tubular therein, and wedges positioned in the wedge bowl that are suitable for positioning between the wedge bowl and the tubular. Each of the grippers of the first and second tubular handling apparatus has a stab frame and three grippers attached to the stab frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.