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Kingsley Dunham Centre Keyworth Nottingham NG12 5GG Tel © NERC All rights reserved Theme B - Geological Storage Jonathan Pearce
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial Geological issues A lot of the issues in CCS require geological data to reduce uncertainty. How much CO 2 can be stored? Where is this capacity? What is the cost and can it be reduced? What do we define as acceptable site performance? How do we predict and verify site performance? Will CO 2 leak? If a leak did occur: – How much will leak? When will it leak? Where will it leak? What would be the impacts of a leak (Theme C)?
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial Theme B Objectives Refine current estimates of the storage capacities in saline aquifers and oil & gas fields. Reduce the uncertainty around potential leaks and long-term site performance. Assess the costs and additional economic benefits of geological storage. Improve data integration through GIS and DSS.
Kingsley Dunham Centre Keyworth Nottingham NG12 5GG Tel © NERC All rights reserved A. Fossil Energy Systems and CO2 Capture and Transport (John Oakey, Cranfield) A1. Fossil fuel supply (Tim Cockerill, Reading) A2. CCS synergies with other low emissions technologies (Jon Gibbins, Imperial) A3. Fossil fuels and CCS as bridge to H2 economy (John Oakey, Cranfield) A4. Fossil fuel utilisation with CO2 capture (John Oakey, Cranfield) A5. UK CO2 transport infrastructure (Martin Downie, Newcastle) A6. UK real time electricity supply and CCS plant (Chee Chen, Manchester) B. Geological Storage (Jonathan Pearce, BGS) The workshop identified a number of areas of work that will be mapped to subthemes and given owners in due course. For further details contact Jonathan Pearce i. Estimates of storage capacities ii. Leaks and long term performance iii. Monitoring and verification iv. Remediation v. Costs and economic benefits D. Social Processes in relation to CCS (Simon Shackley, Manchester) G1. Media (Simon Shackley, Manchester) G2. Business Models (David Reiner, Cambridge) G3. Responsiveness to events (David Reiner, Cambridge) Note: Simon Shackley is planning to go on sabbatical later this year. During that time David Reiner (Cambridge) will be responsible for overseeing this theme and Sarah Mander (Manchester) will lead work on the media (G1). C. CCS and the Environment (Carol Turley, PML) Tasks and timeframes were discussed and reported back to the group. For further details contact Carol Turley Other activities required to integrate information from all project themes (will occur directly between any themes and tasks where appropriate although these are not all shown schematically) E. GIS (Sam Holloway, BGS) F. Dissemination (Stuart Haszeldine, Edinburgh) G. High Level Energy Modelling (David Reiner, Cambridge) H. Dynamic Pathways (Clair Gough, Manchester) Suggested Structure with Carols changed labelling…
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B2.4 Economic analysis B2.3 Phase behaviour & injectivity B2.2 Subsurface flow modelling B2.1 Near field & reservoir characterisation B1.3 Geophysical monitoring B1.2 Geochemical responses to storage B1.1 Caprocks & seals B1.1a Permability modelling B1.1b Field studies B1 Storage integrity B2 Hydrocarbon fields & added value B3 UK onshore & offshore aquifers B2 Hydrocarbon fields & added value Theme B: Geological storage
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B1 CO 2 Storage integrity B1.1 Caprocks and Seals – Model development to estimate relative permeabilities of mudstones from oCapillary pressure-saturation data oPore network modelling – Field studies of areas where CO 2 naturally leaks through mudstones B1.2 Geochemical responses to storage – Pilot kinetic experiments – Database of fluid thermodynamic and reaction-kinetic properties – Geochemical and isotopic monitoring of fluid flow and reactions B1.3 Geophysical monitoring – 3D(4D) wave propagation modelling using Sleipner data – Passive seismic interpretation using Weyburn data.
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B1 Storage Integrity B1.1a Permeability modelling (Andy Aplin) – New relative permeability model for mudstones based on experimentally derived pressure-saturation data. – Permeability is derived using a specific inverse functional technique. – Model provides good results on different mudstones and compares well with Van-Genuchten Model (used for clayey soils) Influence of faults on CO2 Injection – Leeds employed a post-doc to look at the influence of faults on CO2 injection. – Statoil to give Martin Blunt the Gullfaks model so he can investigate the optimum methods for EOR. – Generated a database of fault properties to use in the Gullfaks simulation model to investigate the effect they have on EOR
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B1 Storage Integrity B1.1b Field Studies (Stuart Haszeldine, Zoe Shipton) – Post-doc, Stuart Gilfillan, now recruited. – Our intended work plan will focus on : Fractured caprock and gas leakage chimneys Fault properties Fault damage zone properties – The final outcomes are intended to be 1.Assessment of different trap (sealing) types for CO2 2.Will CO2 injection change the sealing properties of the trap? 3.Recommended work practice to assess and minimise leakage risk 4.contribution to quantifying FEP analyses of critical risk pathways
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B1 Storage Integrity B1.2 Geochemical responses to storage – Leeds and Cambridge appointed post-docs – Using North Sea reservoir water chemistry database to inform experimental programme – Identifying rate-controlling steps in reactions between CO2 and formation waters – Bulk of results will be available in 15 months.
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B1 Storage Integrity B1.3 Geohysical monitoring – Paper completed on mathematical modelling of the Sleipner plume in collaboration with Mike Bickle. – Modelling Carbon-Dioxide Accumulation at Sleipner: Implications for Underground Carbon Storage. Mike Bickle, Andy Chadwick, Herbert E. Huppert, Mark Hallworth and Sarah Lyle
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B2 Hydrocarbon fields and added value from CO 2 B2.1 Reservoir characterisation of candidate North Sea fields B2.2 Subsurface flow modelling – Reservoir modelling – Coupled geochemistry, dispersion and phase exchange between CO 2, hydrocarbons and porewater B2.3 Phase Behaviour and injectivity in CO 2 /EOR process – Multiphase compositional phase behaviour model – Verified against laboratory measurements
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B2.2 Martin Blunt 1. To perform multiphase subsurface reservoir simulation for a number of candidate oil and gas fields and aquifers in the North Sea. Needs a detailed reservoir description of these fields Provided by collaborating oil companies, generated by other members of the consortium (BGS, Edinburgh, Leeds) or generated ourselves from available data Candidate fields are Miller, Maureen, Sleipner etc To study different simulations methods as appropriate - fully compositional, black-oil and streamline-based. To develop streamline- based simulation to capture the key physical and chemical processes. 3. To design injection schemes for different scenarios - to maximise oil recovery vs. to maximise CO2 storage. To study the differences in recovery and storage for WAG flooding vs. gravity stable injection. 4. To provide input into the economic analysis (Aberdeen) and the assessment of storage potential.
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B2 Hydrocarbon fields and added value from CO 2 B2.2 Subsurface flow modelling (Martin Blunt) – Performed a reservoir simulation study of CO 2 injection for storage and EOR in the Maureen field in the North Sea. – Proposed design criteria to maximise both CO 2 storage and incremental oil recovery. – Presently awaiting data from other fields to extend this study.
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B2 Hydrocarbon fields and added value from CO 2 B2.4 Economic analysis (Alex Kemp) – Estimates of capture and transportation to EOR fields and storage sites. – Estimate benefits of additional oil and decommissioning deferral. – Calculations of national costs and returns including reduction of CO 2 emissions and taxation impacts.
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B2 Hydrocarbon fields and added value B2.4 Economic analysis (Alex Kemp) – Modelling Future Production from UKCS including Timing of Cessation of Production and Availability of Infrastructure Modelling of future production with a newly-updated field database is now nearly completed. The financial simulation modelling shows prospective production of oil, gas and NGLs to 2035 by different categories of fields. The dates of likely production termination are estimated for all fields individually and may be used in studies on the potential EOR and for measuring the time window of opportunity for instigating CO 2 injection and EOR schemes.
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B2 Hydrocarbon fields and added value B2.4 Economic analysis (Alex Kemp) – Supply/Cost Curve Modelling An economic model of the Supply/Cost Curve for CO 2 Capture Sequestration and EOR in the UKCS is now nearly complete. Alex needs high-quality cost information relating to the four main cost centres. In turn this depends to some extent on inputs from other members of the consortium. Similarly, with regard to the likely size of EOR, inputs from other members of the consortium are essential. Some help with the subject of injectability would also be helpful.
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B3 UK offshore & onshore aquifers: Characterise selected offshore sites Improve previous estimates of UK storage capacity Upgrade existing decision support tool. – Current & planned sources – Pipeline routes – Sinks Improve GIS functionality to provide information on: – Technical aspects – Economic aspects – Environmental aspects – Social aspects
© NERC All rights reserved UKCCSC planning meeting, September 19-20, Imperial B3 UK offshore & onshore aquifers A basic web-enabled GIS is now on the BGS web site The Esmond field eclipse model was sent to HW so an MSc student can look at it. Sam negotiating with BGS about putting additional datasets on the web-enabled GIS BGS looked at the Sherwood Sandstone Group petrology and log porosity in the Southern North Sea and will be producing a paper on it.
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