The necessity of coiled tubing supervision is stipulated by the fact that a coiled tube is the most critical element of the whole coiled tubing system as is prone to various loads (mechanical wear, material fatigue, stress, pressure), and, consequently, requires special attention during maintenance. It is necessary to develop a regulation on operations control to ensure safe and durable operation of a coiled tube and to minimize all types of risk related to tube wear and tear caused by both mechanical and production factors and borehole environment factors. Thus, control over coiled tube operation means quality control over the newly manufactured tubes, overall cyclic wear, corrosion protection, defectoscopy (nondestructive control) as well as preventive maintenance of the operational tubes. This article provides an overview of the accepted practice of tube control in Trican Well Service (TWS).

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