Deepwater Riser Technology
Claudio Paschoa
June 24, 2014
Un-coupled riser systems are increasingly being used in deepwater and ultra-deepwater field developments, where harsh environments predominate. Hybrid Riser Towers (HRTs) are recognized to have significant benefits for deepwater riser applications in terms of flow assurance, thermal performance and robustness of layout. This latter issue is especially significant when a large number of risers are considered. An HRT provides the required flexibility by avoiding a crowded layout and allowing a progressive deployment. The concept is applicable to deepwater and ultra-deepwater, and to spread-moored and turret-moored FPSO installations. The Single Hybrid Risers (SHR) in its Single or Pipe-in-Pipe versions…