Downhole milling displacement measurement and control

A system for controlling a milling operating within a wellbore, comprising:

• a milling tool comprising:
• a cutting head coupled to the tool body;
• a linear actuator coupled to the tool body and configured to advance the cutting head;
• and
• a linear displacement measurement sensor associated with the linear actuator, wherein the linear displacement measurement sensor is configured to measure linear displacement of the linear actuator;
• a cable configured to lower the milling tool within the wellbore;
• a control unit that receives data from the linear displacement measurement sensor;
• and
• a display device that displays a visualization of the data from the linear displacement measurement sensor.

A method for performing a milling operating within a wellbore, comprising:

• providing a milling tool within a wellbore, the milling tool comprising:
• a cutting head coupled to the tool body;
• a linear actuator coupled to the tool body and configured to advance the cutting head;
• and
• a linear displacement measurement sensor associated with the linear actuator, wherein the linear displacement measurement sensor is configured to measure linear displacement of the linear actuator;
• receiving, at a control unit, data collected by the linear displacement measurement sensor;
• displaying, on a display device, information based on the data collected by the linear displacement measurement sensor.