US 12,031,396 B2
Method and apparatus of guided extend reach tractor
Mustafa A. Al-Huwaider, Dhahran (SA); Shouxiang Ma, Dhahran (SA); and Mamdouh N. Nasser, Dammam (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Nov. 29, 2022, as Appl. No. 18/059,858.
Prior Publication US 2024/0175328 A1, May 30, 2024
Int. Cl. E21B 23/14 (2006.01); E21B 23/00 (2006.01); E21B 23/06 (2006.01)
CPC E21B 23/001 (2020.05) [E21B 23/06 (2013.01); E21B 23/14 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A guided extend reach tractor configured to traverse a borehole for performing a well intervention operation, comprising:
a pulling head configured to house an electromagnet and a solenoid, the solenoid configured to be in a locked position or an unlocked position, the solenoid and electromagnet being configured to control the guided extend reach tractor to lock into a tractor string or release the tractor string,
a control head operatively connected to the pulling head,
an orientation control motor configured to rotate the control head and the pulling head of the guided extend reach tractor,
helical bars forced by the electromagnet to be disposed against the tractor string,
an electric motor with gears configured to rotate the helical bars of the guided extend reach tractor, and
hydraulic arms configured to clamp the guided extend reach tractor onto the tractor string when the solenoid is in the locked position.