US 12,270,269 B2
Transmission drive for downhole tools
Shiao Loong Tang, Singapore (SG); and Simon Whye Kwong Wai, Singapore (SG)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Aug. 2, 2023, as Appl. No. 18/364,192.
Prior Publication US 2025/0043643 A1, Feb. 6, 2025
Int. Cl. E21B 23/00 (2006.01); E21B 4/00 (2006.01); E21B 23/04 (2006.01)
CPC E21B 23/001 (2020.05) [E21B 4/006 (2013.01); E21B 23/042 (2020.05)] 14 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a conveyance tool comprising a first conveyance arm and a second conveyance arm, the first conveyance arm and the second conveyance arm coupled to a tool body of the conveyance tool at a beveled gearbox, the first conveyance arm and the second conveyance arm configured to be positioned in a retracted position within the tool body such that the first conveyance arm is stacked above and aligned with the second conveyance arm, having a longitudinal axis of the first conveyance arm and a longitudinal axis of the second conveyance arm aligned with a longitudinal axis of the conveyance tool,
wherein the first conveyance arm includes a first cycloid drive comprising a first drive wheel, the first cycloid drive configured to rotate the first drive wheel when a first bevel gear of the first conveyance arm positioned within the beveled gearbox is rotated,
wherein the second conveyance arm includes a second cycloid drive comprising a second drive wheel, the second cycloid drive configured to rotate the second drive wheel when a second bevel gear of the second conveyance arm positioned within the beveled gearbox is rotated, and
wherein the first drive wheel and the second drive wheel are configured to engage a surface within a wellbore and to exert a force on the conveyance tool, the force configured to move the conveyance tool longitudinally through the wellbore when the first drive wheel and the second drive wheel are being rotated; and
a single motor positioned within the tool body and having a motor output shaft coupled to both the first bevel gear of the first conveyance arm and the second bevel gear of the second conveyance arm, the first bevel gear and the second bevel gear located one above the other within the beveled gearbox, and the motor configured to rotate the motor output shaft and in turn rotate both the first bevel gear and the second bevel gear through a single pinion gear coupled to the motor output shaft.