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FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan MILES Argo Environmental Engineering Limited.

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Presentation on theme: "FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan MILES Argo Environmental Engineering Limited."— Presentation transcript:

1 FLARE RECOVERY SYSTEMS AND THE “FLARE BULLET” Economic approach to flare minimisation Jonathan MILES Argo Environmental Engineering Limited

2 The Environment CO 2 from Power Generation and Fuel Gas CO 2 from Flaring VOC from tank emissions / transport

3 Environmental Emissions - UKOOA Flaring rose in UK in 2006 to m tonnes CO 2 emissions in 2006 fell by about 1m tonnes

4 UKOOA Commitment 47 UK Flaring in 2001 represented about 30% of Industry CO 2 emissions (5.5 m tonnes) Started Emission Trading Scheme Participants agreed target 10% emission reduction below consent agreements

5 Best In Class? Analysis has shown: – Best in class produces 0.63 ave kg CO 2 /boe Worst in class – 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 CO 2 from Flare / boe 7 of top 10 performers were BP operated

6 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 CO 2 or trading or tax regime. Reputation Potential revenue/cost saving of $1million per year

7 What is zero flaring

8 Flare Gas Recovery HP flare XV Check valve HP K.O. Drum Bursting Disc Sources PT HH PT HH LO FOV FE HH N 2 supply Drain To flare

9 FOV Layout To flare Tiein 1 Tiein 2 Manual valve Bursting disc FOV

10 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")

11 Flare Opening Assemblies Rupture disc/Buckling pin valve Bursting disc Buckling pin valve

12 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

13 Low Pressure System

14 Flare Gas Ignition LP ignition system: – Automatic Pellet Launching cabinet and air launching bottle – Guide pipe – Pellet collector unit (optional)

15 LP system typical installation

16 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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18 Low pressure Ignition System Ekulama II - SPDC Nigeria

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20 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

21 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


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