Multipurpose tubular running tool
US8100187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2009 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Jan 24, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B3/022
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tubular running tool includes a mandrel assembly having an upper mandrel, a lower mandrel and a mid-mandrel, wherein the upper mandrel, the lower mandrel and the mid-mandrel rotate in unison; the lower mandrel having a tubular gripping portion; a slip disposed with the tubular gripping portion; the mid-mandrel forming a bore between a top end and a bottom end, the top end forming a slip-joint with the upper mandrel; and an actuator mechanism disposed with the mid-mandrel, the actuator mechanism comprising a compensation actuator and a slip actuator; wherein the compensation actuator functionally connects the upper mandrel and the lower mandrel to affect axial movement of the lower mandrel relative to the upper mandrel and the slip actuator moves the slip into gripping engagement with a tubular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.