Nonstop transition from rotary drilling to slide drilling
US10851640B2 · kind B2 · utility
2Cited by
16References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2018 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Nov 28, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems, devices, and methods for transitioning from a rotary drilling operation to a slide drilling operation on a drilling rig include rotary drilling a borehole in a subterranean formation by rotating a bottom hole assembly (BHA) on a drill string driven by a top drive and determining a trapped torque in a drill string. While maintaining weight on bit at the BHA, the drill string may be rotated in reverse to remove the trapped torque, and a slide drilling process may be performed without raising the bit from the bottom of the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.