Slide drilling control based on top drive torque and rotational distance
US11814943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2020 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Apr 8, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B3/022
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and methods for controlling slide drilling based on torque and rotational distance of a top drive connected with an upper end of a drill string. A method may comprise operating a processing device that receives torque measurements indicative of torque output by the top drive, receives rotational distance measurements indicative of rotational distance imparted by the top drive, causes the top drive to rotate the drill string while the drill string is off-bottom, determines a reference torque based on the torque measurements received while the drill string is rotated off-bottom, causes the top drive to alternatingly rotate the drill string based on the reference torque to perform slide drilling, determines a reference rotational distance based on the rotational distance measurements received during the slide drilling, and causes the top drive to alternatingly rotate the drill string based on the reference rotational distance to perform the slide drilling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.