Running tool lock open device
US9845650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2015 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Apr 4, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock open device for a running tool including a mandrel, the device including a collar located on the mandrel of the running tool and having an open position profile and a slot comprising a rotational travel section and an axial travel section. The lock open device also includes a top plate having a cog configured to engage with the open position profile to restrict the collar from relative rotation and a can including a pin configured to engage with the collar slot, in which the collar is rotatable upon overcoming a resistance of the top plate such that the pin is located in the axial travel section, allowing axial movement of the collar relative to the can.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.