US 11,982,137 B2
Reel control in a coiled tubing system
Oluwatosin Ogundare, Houston, TX (US); Radovan Rolovic, Houston, TX (US); Roshan Joy Jacob, Houston, TX (US); Ramalakshmi Somaskandan, Houston, TX (US); Daniel Joshua Stark, Houston, TX (US); and Jeremy C. Nicholson, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 7, 2021, as Appl. No. 17/496,364.
Prior Publication US 2023/0110623 A1, Apr. 13, 2023
Int. Cl. E21B 19/00 (2006.01); E21B 17/20 (2006.01); E21B 19/22 (2006.01); E21B 44/06 (2006.01)
CPC E21B 19/008 (2013.01) [E21B 17/20 (2013.01); E21B 19/22 (2013.01); E21B 44/06 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A system comprising:
a coiled tubing reel apparatus comprising:
a reel drum for storing a coiled tubing string spooled on the reel drum and capable of rotating on a central axis to dispense the coiled tubing string or spool-in the coiled tubing string;
a hydraulic reel drive motor operatively coupled to the reel drum, wherein the reel drive motor controls rotation of the reel drum by applying a torque to the reel drum, wherein applying the torque generates a reel back tension on a portion of the coiled tubing string between the coiled tubing reel apparatus and a coiled tubing guide of a coiled tubing injector apparatus, and wherein an angle of deployment of the coiled tubing string from the reel drum is based at least in part on the reel back tension in the portion of the coiled tubing string between the coiled tubing reel apparatus and the coiled tubing guide of the coiled tubing injector apparatus; and
an automatic reel controller configured to:
determine a target hydraulic pressure to be applied to the reel drive motor to achieve a target reel back tension to maintain a target angle of deployment for the coiled tubing string; and
set a hydraulic pressure of the reel drive motor to the target hydraulic pressure.