2010 Ultra-Deepwater

Ultra-Deepwater Riser Concepts for High Motion Vessels

Subcontractor: Stress Engineering Services, Inc.

Principal Investigator: Brian Royer
Project Number Project Status
10121-4401-02 Completed
RPSEA Project Manager: Bill Head
BP, Shell, Petrobras, ConocoPhillips, ExxonMobil, Chevron
Period of Performance
Start Date End Date
August 21, 2012 August 20, 2015
Total Project Cost RPSEA Share Cost Share
$459,322.22 $353,062.75 $101,666.25
Project Objectives

Vessel imposed motions affect the long-term integrity of riser systems on offshore floating facilities. This is amplified for vessels tagged as “high-motion” such as conventional semi- submersibles and ship-shaped FPSOs, which can have significant heave motion and roll and pitch angular motions. This project is being undertaken to investigate riser concept(s) in water depths approaching 10,000 feet supported by high-motion vessels. The primary objective is to establish and bring to maturity at least one safe riser system that will reduce risk and increase safety to people, infrastructure, and the environment, as well as help maintain uninterrupted production.


View members only files associated with this project.

RPSEA Project Fact Sheet: Download 248.0 KB
File Type Date
Ultra-Deepwater Riser Concepts for High Motion Vessels ( 5.4 MB ) Analysis Report 04/14
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