Coiled-tubing reel having a mechanical restraint

摘要

A coiled-tubing system having a reel onto which steel tubing is wound in layered coils. A layon roller comprised of a compliant material is maintained in physical contact with the tubing on the reel to prevent premature unwinding of the tubing during operation. The roller is moved towards and away from the tubing to maintain the roller in contact with the tubing as it is payed out and reeled onto the reel. The system includes a level wind mechanism having a means therein for adjusting the tension in the tubing as it passes through the level wind mechanism.