US 12,228,013 B2
System and method for increasing force on downhole tool
Sean Gray Borschneck, Calgary (CA); and Matthew Carroll McCarthy, Calgary (CA)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 18/690,325
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Oct. 25, 2022, PCT No. PCT/US2022/047679
§ 371(c)(1), (2) Date Mar. 8, 2024,
PCT Pub. No. WO2023/076230, PCT Pub. Date May 4, 2023.
Claims priority of provisional application 63/271,778, filed on Oct. 26, 2021.
Prior Publication US 2024/0426191 A1, Dec. 26, 2024
Int. Cl. E21B 34/14 (2006.01)
CPC E21B 34/14 (2013.01) 15 Claims
OG exemplary drawing
 
1. A system for use in a well, comprising:
a shifting tool sized for deployment along an interior of a well string to shift a sliding sleeve, the shifting tool comprising:
a shifting tool housing;
a plurality of keys movably mounted in the shifting tool housing to hydraulically move between a radially inward key position and a radially outward key position engaging the sliding sleeve; and
a plurality of pads mechanically linked with the plurality of keys, which move radially with the plurality of keys between a radially inward pad position allowing fluid flow between the shifting tool and the well string and a radially outward pad position restricting fluid flow between the shifting tool and the well string to create a differential pressure across the plurality of pads, thus assisting in movement of the shifting tool and corresponding shifting of the sliding sleeve.