Coiled Tubing is one of the most promising and rapidly developing directions of special oilfield service industry. It is based on operations with steel coiled tubing (CT) instead on traditional jointed pipe inside the well. Such coiled tubing is flexible and can provide access to laterals and horizontal wells. Moreover, operations with coiled tubing do not require to kill the well and install and disassemble the drilling column during well repair.
Coiled Tubing is widely used during performance of technological and repair operations on oil and gas wells, as well as after hydraulic fracturing and laterals drilling.
Coiled Tubing Units are generally classified by transport base (truck chassis, semitrailer, skid design) and by diameter and length of operated coiled tubing.