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Coiled tubing is a kind of hydraulically driven equipment, which is mainly used for oilfield workover, drilling, completion, and logging operations. It plays an important role in oil and gas field exploration and development. The construction process is to run the coiled tubing into the well without interruption to complete the special operation of the well. After the work is completed, the coiled tubing in the well is retracted and can be used again next time.