Method and system of manufacturing coiled tubing
A system includes a feeder configured to feed a continuous length of a tube at a predefined rate, a speed sensor configured to determine a feed rate of the continuous length of the tube, a first geometry sensor configured to determine one or more geometric dimensions of a portion of the continuous length of the tube, a first treatment station comprising a first entrance, a first exit, and a first heat treatment zone therebetween, the first heat treatment zone comprising at least one first zone heating element, and a controller configured to power the first zone heating element at a first heat treatment power level based on a first heat treatment target value, the feed rate, one or more of the geometric dimensions, and a first heating element value of the first zone heating element. The system may also include additional heat treatment and cooling stations.
1 . A system comprising:
a feeder configured to feed a continuous length of a tube at a predetermined feed rate, wherein the tube has one or more predetermined geometry values, wherein the one or more predetermined geometry values comprises a wall thickness;
a first treatment station comprising a first entrance, a first exit, and at least a first heat treatment zone therebetween, the first heat treatment zone comprising at least one first zone heating element;
a second treatment station comprising a second entrance, a second exit, and a second heat treatment zone therebetween, the second heat treatment zone comprising a second zone heating element; and
a controller configured to (i) power the first zone heating element at an initial heat treatment power level based on the one or more predetermined geometry values of the tube, (ii) adjust power to the first zone heat element based on the wall thickness, and (iii) power the second zone heating element at a second treatment station power level based on the one or more predetermined geometry values of the tube.
2 . The system of claim 1 , wherein the one or more predetermined geometry values comprises a diameter.
3 . The system of claim 1 , wherein the one or more predetermined geometry values are provided by a tubing supplier.
4 . The system of claim 1 , wherein the controller is configured to power the first zone heating element at the initial heat treatment power level based on one or more tube chemistry values.
5 . The system of claim 1 , further comprising a temperature sensor configured to measure a temperature of the tube at the first exit, wherein the initial heat treatment power level is further based on the temperature.
6 . The system of claim 1 , further comprising a speed sensor configured to determine an actual feed rate of the continuous length of the tube, wherein a first heat treatment station power level is based on the actual feed rate.