This session embarks on a journey into the forefront of subsea technologies and their transformative impact on offshore oil and gas fields. These papers delve deep into the subsea realm, from the rigorous qualification of subsea pumps tailored for dense phase fluid applications in Brazil's pre-salt fields to processes facilitating riserless interventions in subambient wells. Explore high-pressure hydrocarbon separation systems crucial for subsea operations, gas reinjection techniques for accelerating tiebacks and reducing emissions, and the competitive edge of multi-phase booster compression for late-life field depletion scenarios.