US 12,312,913 B2
Positional-release mechanism for a downhole tool
William Ryan Sisak, Houston, TX (US); Bo Chen, Rosharon, TX (US); and Brian Walther, Rosharon, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 18/694,517
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Oct. 21, 2022, PCT No. PCT/US2022/047385
§ 371(c)(1), (2) Date Mar. 22, 2024,
PCT Pub. No. WO2023/081023, PCT Pub. Date May 11, 2023.
Claims priority of provisional application 63/274,655, filed on Nov. 2, 2021.
Prior Publication US 2024/0401434 A1, Dec. 5, 2024
Int. Cl. E21B 34/14 (2006.01)
CPC E21B 34/14 (2013.01) 15 Claims
OG exemplary drawing
 
1. A shifting tool for use with an isolation valve, the shifting tool comprising:
a mandrel; and
a first shifting assembly positioned about the mandrel and comprising:
a first shifting member engageable with a profile of the isolation valve to shift the isolation valve into either an open position or a closed position;
a first sleeve engageable with the first shifting member to prevent disengagement between the first shifting member and the isolation valve;
a first detent mechanism engageable with the first shifting member to prevent disengagement between the first sleeve and the first shifting member; and
wherein:
the first detent mechanism engages with the first shifting member when the shifting tool initially engages with the isolation valve; and
relative movement of the shifting tool with respect to the isolation valve in a direction disengages the first detent mechanism from the first shifting member when the first detent mechanism reaches a predetermined location within the isolation valve.