Downhole clutch joint for multi-directionally rotating downhole drilling assembly
US10920564B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 7, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Nov 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45129
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of a downhole drilling assembly generally include rotatable upper and lower drilling assemblies, and a drill bit, wherein an upper drilling assembly contains a mud motor adapted for clockwise stator rotation and counter-clockwise rotor rotation, whereby a lower drilling assembly is rotatable in the opposite direction of the upper drilling assembly or maintainable in a non-rotating state. The apparatus further includes sensors for continuously transmitting information relating thereto to the surface.Embodiments of a downhole clutch joint generally include a box end sub, a pin end sub, and a ratchet sleeve system containing a clutch joint mechanism, wherein the downhole clutch joint prevents rotation of a downhole drilling assembly in an undesired direction.Method embodiments generally include continuously measuring physical properties and/or drilling parameters, continuously transmitting information relating thereto, and controlling lower drilling assembly rotation in a non-rotating state or in the opposite direction of an upper drilling assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.