Coiled Tubing refers to a very long metal pipe, normally 1 to 3.25 in (25 to 83 mm) in diameter which is supplied spooled on a large reel. It is used in pushing down tools in highly deviated wells where gravity will be insufficient for wireline logging. It is also used in circulation and deliquification.
Coiled Tubing is used in pumping; this process disperses fluid to specific location in a well such
as for cementing perforation or performing chemical washes of downhole components such
as sand screen.
