coiled tubing(Кто-то называет их гибкими НКТ, а кто-то обозначает как безмуфтовая длинномерная труба (БДТ) Coiled tubing is a long metal pipe that is surrounded or rolled over a large reel that is brought to the well site when any well repair or workover activities are to be performed. There are no joints in between the coiled tube which means that it’s a continuous long metal pipe that can be taken inside the borehole to the depth of up to 15000 feet. bracetool.comAlexander Demidov)
