Deepwater Field Development - Flow Assurance - Dynamic ...
Deepwater Field Development - Flow Assurance - Dynamic ...
Deepwater Field Development - Flow Assurance - Dynamic ...
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Black Oil System: Cold Restart<br />
• System pressure < hydrate formation conditions throughout<br />
restart?<br />
• For deepwater, hydrostatic pressure in riser too high<br />
• Separator pressure: may need alternate start-up vessel<br />
• Hydrate inhibition required until arrival temperature reaches<br />
“Safe Operating Temperature” (SOT)<br />
• Maintain hydrate inhibitor rate: Fluid completely inhibited<br />
• Reduce hydrate inhibitor rate: Fluid not completely inhibited to<br />
shut-in conditions<br />
• SOT is minimum topsides temperature that provides<br />
sufficient cooldown time, in the event of an interrupted restart