US 11,970,942 B2
Rotary steerable system with central distribution passages
Sylvain Bedouet, Houston, TX (US)
Assigned to OnTarget Drilling, LLC, Houston, TX (US)
Filed by OnTarget Drilling, LLC, Houston, TX (US)
Filed on Feb. 28, 2022, as Appl. No. 17/682,503.
Claims priority of provisional application 63/207,487, filed on Mar. 2, 2021.
Prior Publication US 2022/0282572 A1, Sep. 8, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 7/06 (2006.01); E21B 7/04 (2006.01); E21B 21/10 (2006.01); E21B 34/06 (2006.01); E21B 44/00 (2006.01)
CPC E21B 7/064 (2013.01) [E21B 7/04 (2013.01); E21B 7/061 (2013.01); E21B 7/067 (2013.01); E21B 21/10 (2013.01); E21B 34/066 (2013.01); E21B 44/005 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A rotary steerable system, comprising a steering section, wherein the steering section includes at least one piston, at least one distribution flow passage extending from a valve to one of the pistons, and two main flow passages bypassing the pistons; wherein at least a portion of each main flow passage is closer to a central point of the steering section than an outer boundary of the distribution flow passage.