Wärtsilä Flare Gas Recovery

The Wärtsilä Flare Gas Recovery System is designed to handle gas that is normally flared during normal oil, gas, and petrochemical installation operations.

The system can be tailored for different process conditions and requirements (international, client and classification society). It can also be combined with Wärtsilä’s hydrocarbon blanketing system, the Wärtsilä GasReformer and Wärtsilä’s flare ignition system.

    Technical data
    Project name Location Installation Technology Equipment Suction pressure Discharge pressure Capacity (per machine) Dimensions (LxWxH) Year
    Egina, Total Nigeria Nigeria FPSO Hydrocarbon blanket and flare gas recovery - 3 x 50% Blower package 0.04 barg 1 barg 3990 Sm3/h 12m x 7m x 6m -
    Quad 204, BP West of Shetland (UK) FPSO Hydrocarbon blanket and flare gas recovery - 2 x 50% Liquid ring compressor 1 bara 2 bara 2450 Am3/h 10m x 5m x 5m 2014
    Presalt P-66, Petrobras Brazil FPSO Flare gas recovery - 2 x 50% Liquid ring compressor and Flare Closure Arrangement 0,5 barg 7,5 barg 1400 m3/h 11m x 5.5m x 4.6m 2013
    Greater Ekofisk Area, Eldfisk II, 2/7s New Wellhead North Sea (Norway) Platform Flare gas recovery Ejectors package and Flare Closure Arrangement 0,15 barg 13,6 barg - Flare flow = 200 Sm3/h
    - Motive gas = 11700 Sm3/h
    5m x 3m x 4,15m 2013
    Knarr, Petrojarl Teekay (BG Group) North Sea (Norway) FPSO Hydrocarbon blanket and flare gas recovery 1 x 100% blower 1 bara 2 bara 1250 Am3/ 7.5m x 5m x 4.5m 2014
    Knarr, Petrojarl Teekay ( BG Group) North Sea (Norway) FPSO LP compressor Oil injected screw compressor 6,4 bara 16 bara 3411 Am3/h 9m x 5m x 5.5m 2013
    Clov, Total Angola FPSO Hydrocarbon blanket and flare gas recovery 2 x 100% blower 1 bara 2 bara 6700 Am3/h 12m x 6.4m x 5.3m 2013
    Goliat , ENI North Sea (Norway) FPSO FGR and HC blanketing system: 2 x 100% Blower 1 bara 2,1 bara 2280 Am3/h 10m x 4.0m x 3.5m 2011
    STATOIL, Peregrino FPSO Brazil FPSO Fuel gas skid: 1 x 100% Blower 3 bara 5,5 bara 400 Am3/h 6.5m x 4.0m x 5.5m 2010
    SUNCOR, Terra Nova FPSO Canada FPSO Hydrocarbon blanket and flare gas recovery 2 x 100% Blower 1 bara 2,1 bara 2500 Am3/h 8.0 m x 4.0 m x 3.5 m 2012
    Nexus II, Nexus Floating Production Vietnam FPSO Hydrocarbon blanket and flare gas recovery Blower package 1 bara 2,1 bara 1240 Sm3/h 4.0 m x 5.7 m x 3.5 m 2008
    Vietnam FPSO LP Compressor skid: Oil injected screw compressor 1.5 bara 11.5 bara 6458 Sm3/h 7.0 m x 4.2 m x 4.0 m 2008
    Chestnut (Hummingbird), Sevan North Sea (UK) FPSO Hydrocarbon blanket gas Blower package 1 bara 2,5 bara 800 Sm3/h 7.6 m x 3.4 m x 3.1 m 2007
    Ormen Lange, Hydro Norway Onshore VOC recovery Oil injected screw compressor 1,05 bara 9 bara 7500 Sm3/h 24m x 10m x 7m 2006
    Mongstad, Statoil Norway Onshore Flare gas recovery 2 x 50% Liquid ring compressor 1,1 bara 6 bara 2,523 Sm3/h 9m x 21m x 5m 2002
    Norne, Statoil Norway FPSO Hydrocarbon blanket gas Oil injected screw compressor 1 bara 2.1 bara 2800 Sm3/h 3,5m x 5,2m x 5,8m 2002
    Høvringen, Esso Norway Onshore Recovery of gasoline vapour from loading trucks at Høvringen tank farm Oil injected screw compressor 0,01 barg 8 barg 1800 Nm3/h 2002
    Rolvsøy, Esso Norway Onshore Recovery of gasoline vapour from loading trucks at Rolvsøy tank farm Oil injected screw compressor 0,01 barg 8 barg 400 Nm3/h 2002
    Troll C, Norsk Hydro Norway Platform Flare gas recovery Oil injected screw compressor and Flare Closure Arrangement HP-flare gas recovered by cross over line. Design capacities: HP 1000 kg/h and LP 250 kg/h. 1999
    Varg, Teekay Norway FPSO Flare gas recovery Oil injected screw compressor and Flare Closure Arrangement HP-flare gas recovered by cross over line. Design capacities: HP 2000 kg/h and LP 1000 kg/h. 1997
    Heidrun, Statoil Norway FPSO Flare gas recovery Ejectors package and Flare Closure Arrangement HP-flare gas recovered by a cross over line, tied in downstream the flare header knock out drum and fed to the 1 stage compressor. LP-flare gas recovered by ejector skid. Design capacities: HP 800 kg/h and LP 1000 kg/h. 1996
    For the complete reference list contact gasinfo@wartsila.com
    Applications - Examples
    Picture Description
    Norsk Hydro Norsk Hydro Troll C
    Flare gas recovery, Screw compressor
    Capacity: 250 kg/h
    Statoil Mongstad Statoil Mongstad
    Flare gas recovery, Liquid ring compressor
    Capacity: 2 x 2600 kg/h
    Norne Statoil Statoil Norne
    Hydrocarbon blanketing, VOC recovery, Screw
    compressor Capacity: 3445 kg/h
    Ormen Lange Ormen Lange, Hydro
    VOC recovery, Oil injected screw compressor
    Capacity: 7500 Sm3/h
    Eldfisk Greater Ekofisk Area, Eldfisk II, 2/7s New Wellhead
    Flare gas recovery, Ejector
    Capacity: - Flare flow = 200 Sm3/h
    - Motive gas = 11700 Sm3/h
    Presalt Presalt Petrobras
    Flare gas recovery, Liquid ring compressor
    Capacity: 1400 m3/h
    Clov Clov Total
    Hydrocarbon blanket and flare gas recovery
    Capacity: 6700 Am3/h
    Quad 204 Quad 204 BP
    Hydrocarbon blanket and flare gas recovery
    Capacity: 2 x 2450 Am3/h
    Key benefits

    Using Flare Gas recovery solution will allow a safe and cost effective recovery of gas that can be used for a wide range of purposes:

    • Export gas
    • Fuel
    • Re-injection into well
    • Feed for boilers
    • Recovered back to feedstock
    • Used in any other system which needs gas

    Eliminating the the need of continuos flaring have many other positive effects:

    • Substantially reduces emission of CO2 and NOX
    • Creates a safer and healthier working environment
    • Reduces noise from flaring
    • Reduces radiation from flaring
    • Increases flare tip lifetime, saving significant maintenance costs on shutdown and flare tip replacement
    • Saves cost due to pollution taxation

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