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FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan...
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Transcript of FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan...
![Page 1: FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan MILES Argo Environmental Engineering Limited.](https://reader036.fdocuments.in/reader036/viewer/2022081502/56649cb15503460f94976351/html5/thumbnails/1.jpg)
FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation
Jonathan MILES
Argo Environmental Engineering Limited
![Page 2: FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan MILES Argo Environmental Engineering Limited.](https://reader036.fdocuments.in/reader036/viewer/2022081502/56649cb15503460f94976351/html5/thumbnails/2.jpg)
The Environment
• CO2 from Power Generation and Fuel Gas
• CO2 from Flaring
• VOC from tank emissions / transport
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Environmental Emissions - UKOOA
Flaring rose in UK in 2006 to 1.725 m tonnes
CO2 emissions in 2006 fell by about 1m tonnes
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UKOOA Commitment 47
• UK Flaring in 2001 represented about 30% of Industry CO2 emissions (5.5 m tonnes)
• Started Emission Trading Scheme
• Participants agreed target 10% emission reduction below consent agreements
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Best In Class?
• Analysis 2000-2004 has shown:
–Best in class produces 0.63 ave kg CO2/boe Worst in class – 38.61 ave kg
–Of worst 10 performers in flaring only 3 had stranded gas reservoirs with 7 connected to gas gathering systems
–Foinhaven has stranded gas reservoir but achieves in top 10 CO2 from Flare / boe
• 7 of top 10 performers were BP operated
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How does reduced flaring save cost
•The “Death Zone” on a flare – Turndown to 1-2%
•Flare and associated equipment damage
•Wasted Gas – especially if fuel gas deficient – burning diesel
•CO2 or trading or tax regime.
•Reputation•Potential revenue/cost
saving of $1million per year
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What is zero flaring
![Page 8: FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan MILES Argo Environmental Engineering Limited.](https://reader036.fdocuments.in/reader036/viewer/2022081502/56649cb15503460f94976351/html5/thumbnails/8.jpg)
Flare Gas Recovery
HP flare
XV
Check valve
HP K.O.Drum
Bursting Disc
Sources
PTHH
PTHH
LO LO
FOV
FE HH
N2 supply
Drain
To flare
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FOV Layout
To flare
Tie in 1
Tie in 2Manual valve
Bursting disc
FOV
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Fast Opening Valve
• Mokveld valve has SIL-level 3 (MTBF=2160 years of operation to "full stroke")
• Tyco valve has SIL-level 3 (MTBF=523 years of operation to "full stroke")
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Flare Opening AssembliesRupture disc/Buckling pin valve
Bursting disc
Buckling pin valve
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Flare Gas Recovery – economics
• Annual value assuming:–Quota trading
– Increased gas export
–2 flare change outs
–Annual revenue from flare gas recovery $1,000,000
• Typical Installed Cost - $2-4 million (cheaper on new facilities)
• Pay back time will typically be 2-4 years
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Low Pressure System
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Flare Gas Ignition
•LP ignition system:– Automatic Pellet Launching
cabinet and air launching bottle
– Guide pipe – Pellet collector unit (optional)
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LP system typical installation
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Flare Gas Ignition System
• Long-range ignition pellet• Armed by the launching pressure• Ignite when emerged from guide pipe• Independent of emerging velocity• Will not ignite if exposed to fire
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Low pressure Ignition SystemEkulama II - SPDC Nigeria
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Low pressure Ignition SystemEkulama II - SPDC Nigeria
![Page 20: FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan MILES Argo Environmental Engineering Limited.](https://reader036.fdocuments.in/reader036/viewer/2022081502/56649cb15503460f94976351/html5/thumbnails/20.jpg)
Flare Gas Ignition
• No moveable parts or electronic equipment located near flare tip
• When required maintenance is performed at cabinet
• All equipment in heat radiation areas are heat in resistant material
• High reliability and long lifetime
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Conclusions and Recommendations
• Install FGR if technically feasible– Increased revenue typically $1million
–Cost to install $2 – 4 million
• Install Pellet Ignition system – suit all systems– Increased reliability of ignition
– Increased safety
–Reduced maintenance cost
–Cost approx $150,000