tccs8, june 17-18, 2015 1 mitigation and remediation of co 2 leakage project granted under eu fp7...
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TCCS8, June 17-18, 2015 1
MItigation and Remediation of CO2 Leakage
Project granted underEU FP7 Energy – Theme 5.2
Mitigation and remediation of leakage from geological [email protected]
www.mirecol-co2.eu
• Mark Wilkinson1, Katriona Edlmann1, Ivana Demic2 & Anna Korre3
• 1University of Edinburgh; 2NIS j.s.c. Novi Sad; 3Imperial College, London
MiReCOL: REMEDIATION OF SHALLOW LEAKAGE FROM A CO2 STORAGE SITE
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June 17-18, 2015 2
Karas et al. (F2)
Lavrov (Poster)
Wilkinson et al. (F2)
Wiese et al. (F2)Loeve et al. (F2)Wessel-Berg et al. (F2)
Durucan et al. (F1)
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What is ‘near surface’ ?
Depth range of typical remediation techniques used by the pollution clean-up industry rather than by the hydrocarbon industry.
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What are we trying to achieve?• Stop the leak?• Recover the CO2 for ‘disposal’?• Protect crops or wildlife?• Protect habitations?• Protect drinking water?
– Minimise pH change?– Remove toxic metals?
• Understand the leak – desktop study
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Relevant experience• Groundwater pollution control
– LNAPL (light non-aqueous phase liquids) – density < water– DNAPL (dense non-aqueous phase liquids) – density >
water• Dam foundation grouting• Natural analogues (e.g. Crystal Geyser, UT)• Oil / gas operations (including EOR / CO2 EOR)
– Routine / disaster
• CO2 production for EOR (e.g. Sheep mountain, CO)• Geothermal (e.g. Torre Alfina, Italy)• CCS!
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Remediation techniques: Ground water cutoff wall
Fetter (1999)
10’s
m
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Treatment walls / Permeable Reactive Barriers (PRB’s)
Roehl et al. (2005)For CO2 or toxic metals
Strategies: • Adsorb• Precipitate• Degrade
Materials: • Activated carbon (most common)• Phosphate minerals (fishbones!, Pb, Sb, U)
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Houses: CO2, radon and methane
http://pubs.usgs.gov/sir/2010/5157/pdf/sir2010-5157.pdf
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Houses demolished due
to gas ingress
Arkwright Town (1990’s) Methane
http://arkwright.web4yourself.com/Images/Documents/234-History-(Large).jpg
http://www.bbc.co.uk/news/uk-scotland-edinburgh-east-fife-27905611
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Bečej field, SerbiaEstimated costs (million EUR, 2014)
Monitoring groundwater 0.03
Drilling of shallow boreholes 0.05
Drilling of injecting boreholes 0.02
Drilling of remediation well Bc-X-1 1.15
Drilling of remediation well Bc-X-2 0.86
Pressure measurement 0.26
Consulting services 0.41
Workover on well Bc-X-1 0.25
Drilling and injection on well Bc-9 1.65
Workover on well Bc-X-1 0.01
Drilling of monitoring wells 0.04
Monitoring the effects of remediation 0.04
4.76 (0.16?)
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Conclusions• Many ‘off the shelf’ techniques available
• Classified as ‘likely – intermediate - unlikely’ - most are costly!
• Will depend on value of asset being protected
• Future work: Assessment of consequences related to remediation methods
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Thank you very much for your attention!
Financial support by the European Commission
and by our industry partners
www.mirecol-co2.eu