US 12,460,488 B2
Flow control choke with wear decoupling
Hasib Uddin, Houston, TX (US); Adnan Zaman, Houston, TX (US); Steven Graham Bell, Houston, TX (US); and Bryan Restau, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jun. 17, 2024, as Appl. No. 18/745,721.
Claims priority of provisional application 63/524,766, filed on Jul. 3, 2023.
Prior Publication US 2025/0012154 A1, Jan. 9, 2025
Int. Cl. E21B 21/10 (2006.01); E21B 4/00 (2006.01); E21B 4/02 (2006.01); E21B 7/06 (2006.01)
CPC E21B 21/10 (2013.01) [E21B 4/003 (2013.01); E21B 4/02 (2013.01); E21B 7/06 (2013.01)] 18 Claims
OG exemplary drawing
 
14. A method for using a drilling system, comprising the steps of:
running a drill string with a rotary steerable system (RSS) downhole; pumping a total drilling fluid down through a central bore of the drill string;
diverting a portion of a drill fluid to produce a bypass fluid which cools one or more bearings of a mud motor and main drilling fluid which travels down the drill string; biasing a rotating choke against a stationary seat within a choke assembly to resist a
hydraulic pressure of the bypass fluid;
accepting an amount of the bypass fluid into the choke assembly in order to maintain adequate hydraulic pressure, which may at least in part be used to extend one or more pads on the RSS; and
rubbing a stationary ring against the rotating choke within the choke assembly and accepting the bypass fluid through a nozzle in the choke assembly.