The need to manage and maintain pipeline system integrity has become increasingly important to pipeline owners and operators in recent years. In the pipeline market there are installations (pipeline systems) with often only a single sided access. For these types of pipeline systems and installations, standard intelligent pigging tools can not be used without extensive pipeline modifications. To meet these requirements Self-Propelled Umbilical Pipeline Inspection Tools have been developed and presented to the market the latest years. This technology and tools are operated and controlled via an integrated umbilical and can perform different type of inspection activities several km’s away from the entrance point of a pipeline. The tool concept is based on Self-Propelled Technologies for propelling the total inspection tool in and out of a pipeline and has a very flexible design, can be used for several different types of applications. The Technology is under a constant development and every year new type of solutions and applications can be offered to the market. Focus on Inspection of Un-piggable lines is a more and more important area in the latest years. The paper will have focus on technology solutions, actual case studies and inspections successfully performed in areas i.e. as: • Corrosion survey of riser systems / pipework in onshore plant / underground gas & oil storage facilities / caverns • Inspection for Cracking in welds, both circumferential and longitudinal • Inspection for Fatigue Cracking in offshore risers and flow lines