Review of Technology Status and Challenges Associated with Ultra Deep Water Developments

A review of current technology limits and challenges that exist for surface facilities (topsides and hull), subsea and flow assurance aspects for ultra deepwater developments (>3,000m or 10,000ft) is presented. Gap assessments are performed to identify components that require development and / or qualification at greater water depths than their current design / qualification depth. Technology readiness level (TRL) is presented for assessment of existing technologies. A summary of current confidence level for various components of a field development (i.e. subsea, topsides, hull, mooring, risers) is also provided. Given the current state of the industry, the paper also addresses project economics, risks and uncertainties when evaluating opportunities in such water depths.