Coiled tubing (abbreviated as CT) is a continuously synthesized tubing that can be wound on a reel and is manufactured by the manufacturer according to the required length. The outer diameter of the tubing usually ranges from 0.75 inches to 5 inches, and the yield strength of the steel used also varies from 55,000 Psi to 120,000 Psi. Currently, the longest tubing that can be wound on a single reel for commercial use has reached more than 9,000 meters.
