Invention Grant
- Patent Title: Slide drilling overshot control
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Application No.: US16871599Application Date: 2020-05-11
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Publication No.: US11352871B2Publication Date: 2022-06-07
- Inventor: Jahir Pabon , Nathaniel Wicks
- Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Main IPC: E21B44/04
- IPC: E21B44/04 ; E21B7/06 ; E21B3/025

Abstract:
Apparatus and operational methods thereof, including a top drive, a rotation sensor, and a processing device. The top drive connects with an upper end of a drill string. The rotation sensor facilitates rotational distance measurements indicative of rotational distance achieved by the top drive. The processing device causes the top drive to impart rotational oscillations alternatingly in opposing directions to the upper end of the drill string while maintaining a downhole toolface orientation during a slide drilling operation, such that each rotational oscillation rotates the upper end of the drill string through a base rotational distance. The processing device also causes the top drive to change the downhole toolface orientation by an offset rotational distance by adding the offset rotational distance and an overshoot rotational distance to the base rotational distance of an instance of the rotational oscillations.
Public/Granted literature
- US20210348494A1 Slide Drilling Overshot Control Public/Granted day:2021-11-11
Information query
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