US 12,305,457 B1
Downhole tractor drive module
Shiao Loong Tang, Singapore (SG); Simon Shye Kwong Wai, Singapore (SG); Hock Soon Tiew, Singapore (SG); and How Jiun Irvin Yuen, Singapore (SG)
Assigned to HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jan. 8, 2024, as Appl. No. 18/406,976.
Int. Cl. E21B 23/00 (2006.01)
CPC E21B 23/001 (2020.05) 16 Claims
OG exemplary drawing
 
1. A downhole tractor drive module, the downhole tractor drive module comprising:
a motor;
a first bevel gearbox having an input shaft, a first output shaft, and a second output shaft, the input shaft of the first bevel gearbox in communication with the motor;
a first drive arm coupled to the first bevel gearbox;
a connecting shaft having a connecting shaft input connection and a connecting shaft output connection, the connecting shaft input connection coupled to the second output shaft of the first bevel gearbox;
a second bevel gearbox, the second bevel gearbox having an input shaft and a first output shaft, the input shaft of the second bevel gearbox coupled to the connecting shaft output connection, such that the first bevel gearbox is closer to the motor than the second bevel gearbox; and
a second drive arm coupled to the second bevel gearbox,
wherein the first bevel gearbox is configured to split power provided by the motor substantially equally between the first output shaft and the second output shaft of the first bevel gearbox, and
wherein the power provided to the second output shaft of the first bevel gearbox is translated through rotation of the connecting shaft to the input shaft of the second bevel gearbox, and wherein the connecting shaft rotates in a direction opposite of a rotation of the input shaft of the first bevel gearbox.