US 11,851,961 B1
Magnetically coupled subsurface choke
Kevin Robin Passmore, Carrollton, TX (US); and Bruce Edward Scott, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jun. 9, 2022, as Appl. No. 17/836,352.
Int. Cl. E21B 23/03 (2006.01); E21B 34/02 (2006.01); F16K 31/08 (2006.01); E21B 34/12 (2006.01)
CPC E21B 23/03 (2013.01) [E21B 34/025 (2020.05); F16K 31/086 (2013.01); E21B 34/12 (2013.01); E21B 2200/02 (2020.05)] 34 Claims
OG exemplary drawing
 
1. A retrievable choke insert, comprising:
an outer housing including a central bore extending axially through the outer housing, an open end, a closed end, and one or more outer housing openings extending through an outer housing sidewall thickness;
a bore flow management actuator disposed in the central bore, the bore flow management actuator having one or more bore flow management openings extending through a bore flow management actuator sidewall thickness, the bore flow management actuator operable to convey subsurface production fluids there through; and
one or more choke insert magnets coupled to the bore flow management actuator, the one or more choke insert magnets configured to magnetically couple with one or more landing nipple magnets of a choke landing nipple to slide the bore flow management actuator and move the one or more bore flow management openings relative to the one or more outer housing openings to control an amount of the subsurface production fluid entering the bore flow management actuator.