Motor rotary steerable system
US9797197B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Oct 6, 2015 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jun 14, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A motor rotary steerable system having a sun gear shaft, a pair of planetary gears rotated by the sun gear shaft, an adjustable slip clutch assembly rotated by the planetary gears in an opposite direction, and an orienting device connected to the planetary gears and adjustable slip clutch assembly. The orienting device comprises a bent sub with a bent sub housing, a bearing section, a bit drive assembly, a pulse counter to count the rotating drive shaft rotations, a drilling bit locator, and a transmitting device conveying signals from the orienting device to a receiver in an opposite side of a power section. The orienting device rotates independently from a drill string and is synchronously timed to the rotation of the drill string to rotate continuously while producing both straight and curved bore path segments and increase production rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.