Interlock system and method for drilling rig
US9903167B2 · kind B2 · utility
1Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2014 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Nov 24, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Present embodiments are directed to a system and method for coordinating operation of a gripping device of a top drive system and power slips of a drilling rig to ensure that at least one of the gripping device and the power slips is engaged with a length of tubular and/or a drill string to support weight of the length of tubular and weight of the drill string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.