US 11,982,137 B2 · Reel control in a coiled tubing system

Abstract

A system is provided including a coiled tubing reel apparatus including a reel drum for storing a coiled tubing string spooled on the reel drum and a hydraulic reel drive motor that controls rotation of the reel drum. The system further includes a reel controller that determines an estimated reel back tension for a portion of the coiled tubing string between the reel apparatus and the injector based on a set of parameters related to a coiled tubing operation. The reel controller determines a target reel back tension to be applied to the portion of the coiled tubing string by adjusting the estimated reel back tension based on a historical job dataset. The reel controller then determines and sets a target hydraulic pressure of the reel drive motor to achieve the target reel back tension in the portion of the coiled tubing string.

Claims27

Dependent claims

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.

5 more elements

A method for operating a coiled tubing reel apparatus, comprising:

automatically determining a target hydraulic pressure to be applied to a reel drive motor to achieve a target reel back tension in a portion of a coiled tubing string between the coiled tubing reel apparatus and a coiled tubing guide of a coiled tubing injector apparatus, wherein an angle of deployment of the coiled tubing string from the coiled tubing reel apparatus 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
automatically setting a hydraulic pressure of the reel drive motor to the target hydraulic pressure to maintain a target angle of deployment for the coiled tubing string.

A computer-readable medium storing instructions which when processed by at least one processor perform a method for operating a coiled tubing reel apparatus, comprising:

automatically determining a target hydraulic pressure to be applied to a reel drive motor to achieve a target reel back tension in a portion of a coiled tubing string between the coiled tubing reel apparatus and a coiled tubing guide of a coiled tubing injector apparatus, wherein an angle of deployment of the coiled tubing string from the coiled tubing reel apparatus 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
automatically setting a hydraulic pressure of the reel drive motor to the target hydraulic pressure to maintain a target angle of deployment for the coiled tubing string.

Dependencies are inferred from the claim text.

Reel control in a coiled tubing system

Life of this patent

Reel control in a coiled tubing system

Life of this patent

Abstract

Claims27