deoiling performance improvements

8/11/2019 Deoiling Performance Improvements

1/13

Tekna Produced Water Management 2008, Stavanger

Improving DeoilingImproving DeoilingHydrocyclone SystemHydrocyclone System

PerformancePerformance

Malcolm Corsie, Cyclotech ASMalcolm Corsie, Cyclotech AS


2/13


3/13

Deoiling Liner RetroDeoiling Liner Retro--FitsFits

Normally, No hot work required;Normally, No hot work required; Minimum vessel downtimeMinimum vessel downtime a vessela vessel

retroretro--fit normally takes one 12 hour shift;fit normally takes one 12 hour shift;

Only light rigging / lifting gear required;Only light rigging / lifting gear required; No pipework modifications normallyNo pipework modifications normally

necessary;necessary;



4/13

RetroRetro--Fit ProcessFit Process

Isolate vessel, open and clean;Isolate vessel, open and clean; Remove existing liners and reject plate;Remove existing liners and reject plate;

Remove existing support plate;Remove existing support plate;

Further clean vessel if necessary;Further clean vessel if necessary; Install new support plate;Install new support plate;

Install new liners;Install new liners;

Install New Reject plate;Install New Reject plate;

Close vessel and reClose vessel and re--connect pipework.connect pipework.



5/13

RetroRetro--Fit ProcessFit Process


Remove Old SupportRemove Old Support

PlatesPlates

Open vessel & RemoveOpen vessel & Remove

Old LinersOld Liners


6/13

RetroRetro--Fit Process (Cont)Fit Process (Cont)


Install New LinersInstall New Liners

Install New SupportInstall New Support

PlatePlate


7/13

RetroRetro--Fit Process (Cont)Fit Process (Cont)


Done!Done!

Install New Reject PlateInstall New Reject Plate


8/13


9/13

High Turndown ApproachHigh Turndown Approach

Test separator applications often requireTest separator applications often requireflexibility to deal with constantly varyingflexibility to deal with constantly varying

amounts of produced water;amounts of produced water;

Traditionally this has required changeTraditionally this has required change--outoutofof livelive liners with blanks and vice versa;liners with blanks and vice versa;

Fluctuating water rates make it difficult toFluctuating water rates make it difficult to

maintain optimum hydrocyclonemaintain optimum hydrocyclone

performanceperformance



10/13

High Turndown ApproachHigh Turndown Approach

Use of a HTD (High Turndown) VesselUse of a HTD (High Turndown) Vesselcan:can:

Significantly improve system turndown (up toSignificantly improve system turndown (up to

20:1 for a two chamber vessel and up to 50:120:1 for a two chamber vessel and up to 50:1

for a three chamber vessel);for a three chamber vessel);

Ensure optimum environmental performanceEnsure optimum environmental performance

over a range of flowrate variations;over a range of flowrate variations;

Reduce the need for vessel entryReduce the need for vessel entry thusthusmaximising vessel upmaximising vessel up--time.time.



11/13

High Turndown VesselHigh Turndown Vessel

Uses two or three chambers to maximiseUses two or three chambers to maximiseturndown;turndown;

Chambers are isolated using externalChambers are isolated using external

valves;valves; These valves can either be manual orThese valves can either be manual or

automated;automated;

Reduces requirement for vessel entryReduces requirement for vessel entry



12/13


13/13


Thank You For Your Time AndThank You For Your Time And

Attention!Attention!

Please feel free to visit us at our standPlease feel free to visit us at our stand

deoiling performance improvements

Documents