Paper: Tubing and Casing Repair With Plastic Liners

The goal of the work in lining tubing is to be able to place a liner or velocity string, without necessity of a conventional rig, into a well with minimum time disruption to production This paper discusses the application techniques and history of in-place repair of downhole casing and tubing. Over 230 wells have been lined with plastic and several plastic velocity/siphon strings have been installed. Technology development is necessary to extend the plastic lining techniques to deeper and hotter wells. Plastic well lining is discussed and successes and limitations are explored.