This part of ISO 13628 gives requirements and recommendations for the design, analysis, materials,
fabrication, testing and operation of subsea completion/workover (C/WO) riser systems run from a floating
vessel.
It is applicable to all new C/WO riser systems and may be applied to modifications, operation of existing
systems and reuse at different locations and with different floating vessels.
This part of ISO 13628 is intended to serve as a common reference for designers, manufacturers and
operators/users, thereby reducing the need for company specifications.
This part of ISO 13628 is limited to risers, manufactured from low alloy carbon steels. Risers fabricated from
special materials such as titanium, composite materials and flexible pipes are beyond the scope of this part of
ISO 13628.
Specific equipment covered by this part of ISO 13628 is listed as follows:
riser joints;
connectors;
workover control systems;
surface flow trees;
surface tree tension frames;
lower workover riser packages;
lubricator valves;
retainer valves;
subsea test trees;
shear subs;
tubing hanger orientation systems;
swivels;
annulus circulation hoses;