Flow control module for a rotary steerable drilling assembly
US10240396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2015 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Jul 8, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Directional control of a rotary steerable drilling assembly can be facilitated by a flow control module for maintaining a geostationary position or orientation of components of the assembly. The drilling assembly can include a bit shaft and an offset mandrel for adjusting a longitudinal axis of the bit shaft. A drive mechanism can rotate the offset mandrel independently of the bit shaft to maintain the offset mandrel in a geostationary position or orientation relative to a formation of the earth and/or a wellbore. A flow control module controllably directs a fluid flow to the drive mechanism. The flow control module can include an inner body and an outer body, defining an annulus there between and one or more blades within the annulus, each of the blades being rotatable to provide a range of angles with respect to a longitudinal axis of the flow control module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.