The Intervention and well P&A are considered high-risk and complex operations that must be carried out in a fully managed and controlled environment. This can be achieved through enhancing the existing intervention systems or introducing new solutions. The intervention riser system and the riser-less open-water abandonment module introduce new technologies that will expand today's operating envelope to deeper and higher temperature environments while maintaining costs and risks firmly under control.Improved synergies can also be achieved through new alliances when different types of operating assets are lumped together, delivering seamless service through integration.