Rotary steerable drilling assembly and method
US11879333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2019 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Sep 21, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary steerable drilling assembly for directional drilling includes a driveshaft rotatably disposed in a driveshaft housing, a bend adjustment assembly coupled to the driveshaft housing, a bearing mandrel coupled to the bend adjustment assembly, and a torque control assembly including a rotor configured to couple with a drill string, a stator assembly coupled to the downhole motor, and a torque control actuator assembly configured to control the amount of torque transmitted between the rotor and the stator assembly, wherein the bend adjustment assembly includes a first position providing a first deflection angle between a longitudinal axis of the driveshaft housing and a longitudinal axis of the bearing mandrel, wherein the bend adjustment assembly includes a second position providing a second deflection angle between the longitudinal axis of the driveshaft housing and the longitudinal axis of the bearing mandrel, the second deflection angle being different from the first deflection angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.