At the modern stage of development of CT technologies there appeared over a dozen of new operations, which replaced traditional technology in oilers' practical activities. CT drilling is developing as well and attracts technologists wiyh new opportunities in implementation of sophisticated projects. Technical characteristics of a coiled tube, the presence of a power cable for power supply to the orientator and a reliable link with bottom-hole equipment provide for real-time control over well path, including that for short radius of distortion. The world operators practice drilling horizontal wells in the production horizon and directional deviated wells on short radius from the main bore. Such technologies are especially relevant for fields with reserves hard to recover. It should be noted that the development of underbalanced well completion technologies became more attractive than traditional made-up drilling instrument.

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