Coiled Tubing Applications to Drilling and Production Operations

by
Koksal Cig, MSE

University of Texas at Austin, 1996
Supervisors: Augusto L. Podio
A. Daniel Hill

Coiled tubing has become a viable option for many conventional well operations worldwide. Since the introduction of coiled tubing in 1960s, coiled tubing workover services have expanded from wellbore cleanouts to multi-task operations. The number of coiled tubing workover services has increased this decade dramatically. Advanced technology, new equipment and recent field applications have proved that coiled tubing is a lower cost, reliable and effective tool. All services currently performed through coiled tubing are still improving and increasing their performance efficiency. However, there are several areas of activity under development that will need new innovative approaches to coiled tubing services. In this report, coiled tubing units, coiled tubing technological improvements, properties, and limitations, and coiled tubing applications are described. Hybrid coiled tubing which handles both jointed pipe and coiled tubing is also reviewed. Economic aspects of coiled tubing applications are further compared with conventional applications.

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