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Vertical emulsion-treater
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Vertical Emulsion Treater Heating, Degassing and Dehydration In One Efficient System A crude oil dehydration system may require one or more of numerous processes: preheating, degassing, free water removal, and heating. NATCO Vertical Emulsion Treaters are designed to use any combination of these functions. In addition, special features and options can extend a treater’s versatility and enhance its efficiency. Vertical treaters are primarily applicable to low volume flows with high water content. A number of features contribute to the system’s notable operating economy, and optimum recovery of condensable, salable hydrocarbons. These features include: • A reversible firetube which provides long life and the proper heat for controlled separation • Heat-retention baffling • A condensing head which minimizes vapor loss of hydrocarbons • Corrosion-resistant adjustable fiberglass siphon nipples Continuous-flow separation The inflowing wellstream separates into gas and liquid. Gas is drawn off the top of the vessel, while liquids flow through a downcomer exiting below the firetube. Specially designed baffles direct the freewater downward and the lighter oil/water emulsion upward. The emulsion rises past the firetube, absorbing heat. Heat and the scrubbing action of the baffle trays break the emulsion as it passes through the vessel. Separated water drops coalesce and settle to the bottom while oil continues rising. Water is removed from the bottom of the treater through a valve-monitored siphon; oil is removed at the top through a control valve. The desired oil/water level can be maintained from the outside by adjusting the siphon nipple. Working pressures Standard systems perform from atmospheric pressure to 50 psi; special systems to 100+ psi. Three available options to cut fuel costs An external heat exchanger preheats inlet fluid for more economical treating. It also cools outgoing treated oil to the storage tank, preventing vaporization and loss of valuable hydrocarbons. The result is reduced fuel consumption and increased oil volume to sales. NATCO’s combustion air controller governs air flow into the burner system. The result is optimum air/fuel ratio throughout the firing range; hence, improved thermal efficiency. A turbulator installed in the firetube exhaust chamber provides additional economy by reducing heat loss out the stack. Since heat is transferred to the fluid more efficiently, fuel consumption is reduced as the heater firing is optimized. Additional benefits: reduced thermal stresses, longer heater life with less repair. Issue 7 July 2002 Page 1211-A1 NATCO Vertical Emulsion Treaters are designed and built for any climatic or atmospheric conditions
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Transcript of Vertical emulsion-treater
Vertical Emulsion Treater
Heating, Degassing and Dehydration In One Efficient SystemA crude oil dehydration system mayrequire one or more of numerousprocesses: preheating, degassing, freewater removal, and heating.
NATCO Vertical Emulsion Treaters aredesigned to use any combination of thesefunctions. In addition, special features andoptions can extend a treater’s versatilityand enhance its efficiency.
Vertical treaters are primarily applicable tolow volume flows with high watercontent.
A number of features contribute to thesystem’s notable operating economy, andoptimum recovery of condensable, salablehydrocarbons. These features include:
• A reversible firetube which provideslong life and the proper heat forcontrolled separation
• Heat-retention baffling• A condensing head which minimizes
vapor loss of hydrocarbons• Corrosion-resistant adjustable fiberglass
siphon nipples
Continuous-flow separationThe inflowing wellstream separates intogas and liquid. Gas is drawn off the top ofthe vessel, while liquids flow through adowncomer exiting below the firetube.Specially designed baffles direct thefreewater downward and the lighteroil/water emulsion upward.
The emulsion rises past the firetube,absorbing heat. Heat and the scrubbingaction of the baffle trays break theemulsion as it passes through the vessel.
Separated water drops coalesce and settleto the bottom while oil continues rising.Water is removed from the bottom of thetreater through a valve-monitored siphon;oil is removed at the top through acontrol valve. The desired oil/water levelcan be maintained from the outside byadjusting the siphon nipple.
Working pressuresStandard systems perform fromatmospheric pressure to 50 psi; specialsystems to 100+ psi.
Three available options to cut fuelcostsAn external heat exchanger preheats inletfluid for more economical treating. It alsocools outgoing treated oil to the storagetank, preventing vaporization and loss ofvaluable hydrocarbons. The result isreduced fuel consumption and increasedoil volume to sales.
NATCO’s combustion air controllergoverns air flow into the burner system.The result is optimum air/fuel ratiothroughout the firing range; hence,improved thermal efficiency.
A turbulator installed in the firetubeexhaust chamber provides additionaleconomy by reducing heat loss out thestack. Since heat is transferred to the fluidmore efficiently, fuel consumption isreduced as the heater firing is optimized.Additional benefits: reduced thermalstresses, longer heater life with less repair.
Issue 7 July 2002 Page 1211-A1
NATCO Vertical Emulsion Treaters are designed and built for any climatic or atmospheric conditions
Standard features Optional features
Vertical Emulsion Treater
ShellO.D.
StandardWorkingPressure
(psi)
StandardBtu/h
Use Rate
Capacity (Maximum gas/oil ratio is 1000scf:1 bbl)
20’ Vessel Height 27.5’ Shell HeightOil Water Oil Water
(bbls/day) (bbls/day) (bbls/day) (bbls/day)
4’ 50 283M 96-360 200-600 120-480 250-1800
4’ 50 350M 96-360 200-600 120-480 250-1800
6’ 50 500M 192-480 400-1300 240-840 550-4000
8’ 40 100M 360-960 800-2200 480-1920 1000-7000
10’ 40 1350M 480-1200 1000-3500 600-2880 1500-10000
4’ 50 350M 120-360 200-600 150-648 250-1800
6’ 50 500M 192-360 400-1300 240-960 550-4000
8’ 40 1000M 360-1680 800-2200 480-2160 1000-7000
10’ 40 1350M 480-2160 1000-3500 720-3240 1500-10000
4’ 50 350M 120-600 200-600 150-648 250-1800
6’ 50 500M 192-840 400-1300 240-960 550-4000
8’ 40 1000M 360-1680 800-2200 480-2160 1000-7000
10’ 40 1350M 480-2160 1000-3500 720-3240 1500-10000
Warm Weather Series (W-1)
20º to 42º high gravity crude oils, removable
heat baffle, no excelsior section, outside
siphon assembly, one manway
Warm Weather Series (W-2)
Similar to W1 but with one excelsior section
and two manways
Cold Weather Series (W-5)
20º to 42º high gravity crude oils, large water
volumes, removable heat baffle. No excelsior
section, outside siphon assembly, two
manways, clustered external or internal piping
Description
Issue 7 July 2002 Page 1211-A2
• Automatically controlled gas burningequipment with manual shutoff
• Single or multiple coalescing sections
• Oil and water control valves
• Pressure gauge
• Gauge glasses with safety gauge cocks
• Thermostat and thermometer
• Pipe bracing
• Access ladder
• Coalescing media (Performax® matrixplate or excelsior)
• Alternate heat sources: oil burners, hotoil bundles, steam bundles, electricheating elements
• Flame arrestor
• Automatic ignition
• Flame safety shutdown
• External heat exchanger
• Safety fuel gas scrubber
• Pilot or lever-operated gas backpressure valves
• Top-mounted platform with safety rails
• Cone-shaped desanding design
• Cold weather configuration withhoused lines and valves or internalpiping
• Insulation
NATCO Group Head OfficeHouston, USATel: +(1) 713 683 9292Email: [email protected]
NATCO CanadaCalgary, CanadaTel: +(1) 403 236 1850Email: [email protected]
NATCO JapanTokyo, JapanTel: +(81) 33288 1901Email: [email protected]
Axsia GroupGloucester, EnglandTel: +(44) 1452 833800Email: [email protected]
Axsia HowmarCamberley, EnglandTel: +(44) 1276 681101Email: [email protected]
www.natcogroup.com
For more information on the NATCO Vertical Emulsion Treater or other NATCO Group products contact:
