Rotary steerable drilling assembly and method
US12203368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2023 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Dec 15, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary steerable drilling assembly 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 a 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 torque control actuator assembly includes a spool valve including a cylinder including a port and a hydraulically actuatable piston slidably disposed in the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.