US 12,129,724 B2
Gas lift latch
Jason Kamphaus, Missouri City, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 18/248,909
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Oct. 18, 2021, PCT No. PCT/US2021/055377
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/082092, PCT Pub. Date Apr. 21, 2022.
Claims priority of provisional application 63/093,348, filed on Oct. 19, 2020.
Claims priority of provisional application 63/092,926, filed on Oct. 16, 2020.
Prior Publication US 2023/0392463 A1, Dec. 7, 2023
Int. Cl. E21B 23/03 (2006.01); E21B 43/12 (2006.01)
CPC E21B 23/03 (2013.01) [E21B 43/122 (2013.01); E21B 43/123 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A latch for a downhole component, the latch comprising:
a latch stop forming a base of the latch;
a running head coupled to and extending upward from the latch stop;
a latch body circumferentially disposed about at least a portion of the running head;
a latch ring disposed circumferentially about the latch body and positioned adjacent the latch stop;
a dog assembly comprising a shaft disposed radially between the running head and the latch body and one or more dogs disposed at a bottom end of the shaft, the dogs configured to engage corresponding features in the running head; and
a lock ring disposed circumferentially about the latch body,
wherein in a locked position, the lock ring is positioned at an axial position along the latch body such that the lock ring is radially aligned and disposed about the one or more dogs, the lock ring configured to inhibit the one or more dogs from moving radially outward out of engagement with the corresponding features in the running head, and
wherein in an unlocked position, the lock ring is positioned along the latch body axially spaced from the one or more dogs, thereby allowing the one or more dogs to move radially outward out of engagement with the running head.