Using Steerable Drilling Liner to drill through an unstable formation has been a proven solution from fixed installations where this technology greatly increases the chance of successfully drilling a wellbore and landing a liner at planned depth. The key to the increased performance are the reduced open hole time, mechanical impact on formation and pressure fluctuation in the well. In previous subsea wells on the Vigdis field on the Norwegian Continental Shelf, stability problems have led to setting the liner prematurely, resulting in loss of production. The stability problems seen in the offset wells have been time dependant, with few difficulties experienced during drilling. However, when running the liner afterwards, pack-offs, shallow setting of liners and problems with cementing have occurred. The Steerable Drilling Liner solution was selected to prevent initiation of instability while drilling the reservoir and in addition to ensure the section could be secured with the liner in place before formation instability problems occur. The implementation of the Steerable Drilling Liner enabled drilling of a nearly horizontal section with several unstable palaeosol intervals without any stability related problems, hence meeting the objective of reaching a challenging target. It has been concluded that the section would have been difficult to drill with conventional methods. In contrast to previous Steerable Drilling Liner utilization, this well was drilled from a semi-submersible rig in rough weather conditions. These harsh conditions in the North Sea demanded high attention with respect to drilling practices and well control which had to be addressed accordingly. In the following, the planning and execution phase, leading up to the successful drilling operation from a floating installation will be described. The paper will also touch upon some improvements for further use of the Steerable Drilling Liner technology.