Rotating control device with positive drive gripping device
US9488025B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2012 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Mar 16, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotating control device can include a rotatably mounted seal which sealingly engages a drill string, and a gripping device which grips the drill string and thereby forces the seal to rotate with the drill string. A drilling method can include positioning a drill string in a rotating control device, gripping the drill string with a gripping device of the rotating control device, and rotating the drill string, gripping engagement between the gripping device and the drill string causing a seal of the rotating control device to rotate along with the drill string. A well system can include a drill string, and a rotating control device including a seal which sealingly engages the drill string and a gripping device which grippingly engages the drill string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.