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The Guide to Oilwell Fishing Operations, 2nd Edition by Joe P. DeGeare

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Chapter 29

Coiled-Tubing-Conveyed Tubing and Drill-Pipe Cutting

Abstract

Until the early 1990s, few pipe-cutting operations were performed using coiled tubing as a means of conveyance. A drilling or workover rig with a jointed-pipe workstring was the primary choice for conveying mechanical and hydraulic pipe-cutting tools when wireline methods were not suitable—particularly in highly deviated and horizontal wells. As its capabilities grow, coiled tubing is increasingly used with other tools to perform more challenging jobs, such as cutting single- and multiple-pipe strings.

Keyword

Bullnose sub

Coiled tubing

Compression swivel

Hydromechanical pipe-cutting

Software program

Workover motor

Until the early 1990s, few pipe-cutting operations ...

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