Definition(s)
Surge Pressure
Pressure produced by sudden changes in the velocity of the moving stream of fluids inside the riser.
Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards
Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards
Pressure Control
Rapid change in line or vessel pressure.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards