US 12,258,826 B2
Extended reach power track tool used on coiled tubing
Keith Adams, Katy, TX (US); Detlef Boss, The Woodlands, TX (US); and Gary D. Ingram, Houston, TX (US)
Assigned to Weatherford Technology Holdings, LLC, Houston, TX (US)
Filed by Weatherford Technology Holdings, LLC, Houston, TX (US)
Filed on Mar. 27, 2023, as Appl. No. 18/126,712.
Prior Publication US 2024/0328268 A1, Oct. 3, 2024
Int. Cl. E21B 23/00 (2006.01); E21B 4/18 (2006.01); E21B 23/04 (2006.01)
CPC E21B 23/001 (2020.05) [E21B 4/18 (2013.01); E21B 23/0411 (2020.05); E21B 23/0419 (2020.05); E21B 23/042 (2020.05)] 28 Claims
OG exemplary drawing
 
1. A traction tool operable with fluid flow from coiled tubing for use in a wellbore, the traction tool comprising:
a mandrel having a longitudinal axis and having a bore therethrough for passage of the fluid flow;
a driver rotatably disposed on the mandrel and being movable between a retracted condition and an extended condition relative to the longitudinal axis, the driver in the extended condition being configured to engage inside the wellbore, a portion of the driver being arranged at an angle transverse to the longitudinal axis, the driver comprising a plurality of carriers disposed about the longitudinal axis, each carrier hingedly connected to opposing linkage arms, the linkage arms hingedly connected between sections of the traction tool disposed on the mandrel;
at least one driver piston disposed adjacent to the driver, the at least one driver piston in fluid communication with the bore and being configured to move the driver between the retracted and extended conditions in response to the fluid flow; and
a motor disposed in communication with the bore of the mandrel, the motor being configured to impart rotation to the driver about the longitudinal axis in response to the fluid flow.