US 12,270,477 B2
Needle for a choke valve assembly
Frederic Pauchet, Clamart (FR); Edmund Peter McHugh, Longford (IE); J. Daniel Belnap, Lindon, UT (US); Cheng Peng, Orem, UT (US); David Wahlquist, Spanish Fork, UT (US); Lynn Belnap, Spanish Fork, UT (US); Ivan Tapia, Provo, UT (US); Scott S. Dahlgren, Alpine, UT (US); and Neil Cannon, Woodland Hills, UT (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 18/262,768
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Jan. 19, 2022, PCT No. PCT/US2022/070249
§ 371(c)(1), (2) Date Jul. 25, 2023,
PCT Pub. No. WO2022/159946, PCT Pub. Date Jul. 28, 2022.
Claims priority of provisional application 63/141,325, filed on Jan. 25, 2021.
Prior Publication US 2024/0418269 A1, Dec. 19, 2024
Int. Cl. F16K 1/48 (2006.01); F16K 1/38 (2006.01); F16K 1/54 (2006.01); F16K 25/00 (2006.01)
CPC F16K 1/54 (2013.01) [F16K 1/38 (2013.01); F16K 1/487 (2013.01); F16K 25/00 (2013.01); F16K 25/005 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A needle for a choke valve assembly, comprising:
a tip portion, comprising:
a retainer comprising a threaded shaft;
a seat-engaging element configured to engage a seat of the choke valve assembly while the choke valve assembly is in a closed state, wherein the seat-engaging element is engaged with the retainer such that the threaded shaft of the retainer extends through a central passage of the seat-engaging element; and
a nut engaged with the threaded shaft to block movement of the seat-engaging element along the threaded shaft; and
a base portion having a threaded recess, wherein the threaded shaft is engaged with the threaded recess to couple the tip portion to the base portion, and the nut is positioned between the threaded recess of the base portion and an entirety of the central passage of the seat-engaging element.