WÄRTSILÄ VESSEL INTERNAL ELECTROSTATIC COALESCER (VIEC®)

Wärtsilä is actively developing new and innovative products to make oil and water separation more efficient, cost-effective, and environmentally safe. Through Wärtsilä know-how our technology is designed to improve the separation quality of oil and water. The Wärtsilä Vessel Internal Electrostatic Coalescer (VIEC®) is a field proven solution for separation of water from oil, improving production capacity, eliminating emulsion issues, reducing heating and chemical dosage demand as well as space and weight requirements. VIEC® enables operators CAPEX and OPEX savings as well as being a preferred tool for de-bottle necking and solving emulsion issues.

BENEFITS• Increasecrudeoilproductioncapacity• Reduceweightandspacerequirements• Reducecostofproductionfluidheating• Reduceconsumptionofchemicals• Improveheavyoilseparation• Guaranteedseparatorperformance(total BS&W output)

FEATURES• Fullyinsulatedelectrodesandlow voltage penetration and feeding • Suitableforbothnewbuildsandretrofits• Installationthrough18”-24”manhole• Fieldproventechnology• ULandCEmarkedequipment

CONCEPTVIEC® is a technology for enhancing liquid-liquid separation by using alternating high voltage electrical fields. Modular construction consisting of several electrodes, where each electrode is electrically insulated and has its own dedicated transformer for transforming a low voltage feed to high voltage. Tolerates100%waterand100%gaswithout short circuiting or arcing, making it ideally suited for use in any three-phase separator to speed up separation of water dispersed in oil and/or to resolve stable oil-continuous emulsions.

WÄRTSILÄ® is a registered trademark. Copyright © 2015 Wärtsilä Corporation.Specifications are subject to change without prior notice.

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INCREASED PRODUCTION CAPACITYVIEC® will increase the coalescence rate of water droplets in the oil phase and thus increase droplet sizes in the water in oil emulsion. The larger droplets settle faster and reduces the required settling time for the oil phase in the separator. This enables the separator to handle larger production rate without reducing the oil quality. Forexistingfacilitieswithplannedtie-inswhich require increased separation capacity VIEC® can provide the required capacity increase with minimum modifications and CAPEX investments.

REDUCED WEIGHT AND SPACE REQUIERMENTUtilizationofVIEC® enables reduced vessel sizing and/or removal of process equipment giving large CAPEX savings for new facilities. ForlightoilsVIEC® can provide crude oilspecificationforexportwithoutuseofaseparate2-phaseelectrostaticcoalescer,thusreducing the number of required separation stages. Forcrudeoilde-saltingVIEC® can enable removal of one de-salter (electro coalescer) by introducing electro coalescence in the second stage separator upstream of the wash water injection point.

REDUCED FLUID HEATINGVIEC® enables processing at higher viscosities, thusreducingfluidheatingrequirements.In many cases reduced heating can give largeOPEXsavings.Further,lowerprocesstemperature requires lower material grade process equipment as well as less complicated operation and reduced safety requirements.

REDUCED CHEMICAL CONSUMPTIONImplementation of VIEC® will significantly reduce the required demulsifier dosage resulting in potentially large OPEX savings.

HEAVY CRUDE OIL SEPARATIONDue to the small density difference between water and heavy crudes, and the high crude viscosity, heavy crude oils are difficult to de-hydrate. The tight water emulsions in the heavy crude require higher temperatures, more chemicals and longer settling times to separate from the oil. VIEC® provides a more cost efficient way to de-hydrate heavy crude oils reducing heat and chemical demand as well as enabling more compact separation.

GUARANTEED PERFORMANCEWärtsilä utilize an in-house laboratory for executingVIEC® screening studies on crude oil samples from the actual field developments evaluating VIEC® utilization. Based on such screening studies Wärtsilä will provide a performance guarantee for the total BS&W at the separator oil outlet.

FIELD/VESSEL DELIVERED OWNERTrollC 2003 StatoilFPSOMunin 2004 BluewaterAlShaheen 2005 MaerskOilQatarGrane 2005 StatoilJubarteField,FPSOP-34 2005 PetrobrasMarlimField,FPSOP-35 2006 PetrobrasFramEast 2006 StatoilMarlimField,FPSOP-37 2006 PetrobrasVolve,Jack-upRig 2006 StatoilHeidrunTLP 2007 StatoilVincentField,FPSONgujima-Yin 2007 WoodsideGjøa 2007 StatoilValhall 2007 BPSchiehallion 2008 BPBadejoField(Membro-Siri),FPSOPetrojarlCidadedeRiodasOstras 2009 Teekay/PetrobrasAndrew 2009 BPOfon 2009 TotalWaimea,FPSOOSX-1 2011 OGX/OSXGudrun 2011 StatoilGoliat 2011 ENIDukhan 2012 QatarPetroleumEldfisk 2012 ConocoPhilipsAugerTLP 2013 ShellNorne 2013 StatoilHebron 2013 ExxonMobilIvarAasen 2014 DetNorskeMariner 2014 StatoilGinaKrog 2014 Statoil

REFERENCES

Prin

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2015

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The Wärtsilä VIEC®technologyhasbeeninstalledinmorethan40production/test separators worldwide and is approved by most major owner/operators

Wärtsilä VIEC® Wall

Wärtsilä VIEC® Cassette Assembly Wärtsilä VIEC® Plate