10,000 PSI Drilling Riser

Working closely with sister company Claxton Engineering Services, Subsea Riser Products executed system design, component design and manufacture of an ultra high pressure riser string for use with a jack-up drilling rig in the North Sea.

The high pressure riser system, rated for service in excess of 12,000 psi, uses technology never before employed in its current form; shrink-fitting. Technology ordinarily employed in deepwater high pressure risers was used to improve riser running time.

The engineering phase of the project involved qualification work including small scale testing, finite element analysis followed by large scale testing of the SHRINK-FIT system. The testing included hydro and gas testing in a range of extreme load-cases.