This paper describes scale cleanout jobs performed with Coiled Tubing offshore in the North Sea on 7 well for Phillips Petroleum Company Norway

The cleanout has been done by first perform milling runs with a standard PDM motor, then the completions jewelry has been cleaned by use of a jetting nozzle head with a metal to metal seal motor as a drive mechanism.

In some of the wells multi-finger caliper has been run both before and after the cleanout. The caliper has confirmed a clean well. In others drift run has been performed and gas lift valves has successfully been replaced. An increased oil production from the wells is also achieved

Both Weatherford CTD PDM motors and the metal to metal seal Weatherford MacDrill motor together with the Weatherford MacJet head has proved to be strong and reliable tools for this kind of operations.

You can access this article if you purchase or spend a download.