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Summary Report of the 2nd Joint Network Meeting

1 January 2013
Event Proceedings
Storage

The Joint Network Meeting co-ordinates all four of the geological storage networks: Risk Assessment; Monitoring; Modelling; and Wellbore Integrity; and the Environmental Impacts of CO2 Storage Workshop Series. The 2nd IEAGHG Joint Storage Network meeting was held from the 19th to the 21st of June 2012 in Santa Fe, New Mexico, USA. It was hosted by Los Alamos National Laboratory and sponsored by Sandia National Laboratories, Los Alamos National Laboratory and Schlumberger Carbon Services. Sixty-eight delegates attended, representing 11 different countries. The aims of the meeting were to:   <ul> <li>Ensure the Networks are working in the most efficient way without duplication or gaps,</li> <li>Identify cross-cutting issues and their consequences; requiring input from more than one network,</li> <li>Set the framework for the future direction of the networks.</li> </ul>

Technical Report

Wellbore Integrity Network Summary Report

1 December 2012
Event Proceedings
Storage

The purpose of this report is to describe the Wellbore Integrity Network, summarise past meetings, outline key findings and identify current state of knowledge

Technical Report

Quantification Techniques for CO₂ Leakage

1 December 2012
Storage

On the whole, the primary focus of CO₂ storage monitoring techniques has been to monitor plume behaviour in storage formations, and to detect leakage to the biosphere. However, for emissions trading under the EU ETS and for national GHG inventory purposes it is necessary to quantify leaked emissions to the atmosphere should leakage occur, and there is a low level of understanding of the capabilities, accuracies and uncertainties of measurement techniques for this application.

Technical Report

Extraction of Formation Water from CO₂ Storage

1 December 2012
Storage

The main aim of the study would be to assess the global potential for extraction of formation waters as part of DSF storage projects. The study would comprise a comprehensive literature review, from published research and industrial analogues (e.g. brine disposal from petroleum and coal bed methane industries) to provide guidance on the following issues: Potential rates of brine extraction required for varying injection rates, across a typical range of DSF storage scenarios; Likely range in chemical composition of extracted brines; Options for disposal of brine, either surface or subsurface, and associated potential environmental impacts; Onshore and offshore considerations, including treatment required for different disposal options. Potential for utilisation of extracted brines, e.g. cooling water for power stations, geothermal energy, and assessment of associated environmental impacts; Potential for surface dissolution of CO₂ in extracted brine and re-injection into storage formations; Regulatory constraints, including for monitoring requirements, potential liability and water quality requirements for different uses. Potential economic implications for CO₂ storage of brine extraction and the various options for disposal/utilisation, to be illustrated by selected case studies.

Technical Review

Microbial Effects on CO₂ Storage

1 December 2012
Storage

Microorganisms are thought to be responsible for over half the biomass on the planet, with a substantial fraction of them in the subsurface. Some microorganisms are known to be able to exist in extreme conditions and have been found in the subsurface at depths greater than 3km and can therefore potentially exist at some locations considered for geological storage of CO2. In general the chemoautotrophic nature of subsurface ecosystems increases with depth, i.e. microbes in the deeper subsurface are more likely to be using CO2 to synthesise necessary organic compounds. Therefore these are what you may expect to find at the depth of a typical CO2 storage reservoir.

Technical Report

Financial Mechanisms for Long-Term CO₂ Storage Liabilities

1 November 2012
Costs of CCUS
Storage

The study aimed to review current laws and emerging CCS specific regulations, in different regions of the world and under different legal frameworks, concentrating on long-term liability aspects. The primary work of the study was to investigate and assess the various potential financial mechanisms for supporting CO₂ liability, including an assessment of their applicability and practicality to all parties concerned, and provide recommendations based on the findings. As well as discussion on important issues such as when and how transfer of liability to the government should occur, and what these liabilities could be, the study focuses primarily on how this liability can be supported.

Technical Report

Summary Report of the 6th Risk Assessment Network Workshop

1 March 2012
Event Proceedings
Storage

The three day workshop highlighted the latest international CO₂ storage risk assessment developments, discussing communication and regulatory developments, risk and incident management, potential induced seismicity, monitoring performance, understanding potential groundwater impacts, risk assessment methodologies, key outcomes and identified knowledge gaps which need to be addressed in future research.

Technical Report

The 7th IEAGHG Monitoring Network Meeting

1 November 2011
Event Proceedings
Storage

The theme for this year’s meeting centred on the 3 criteria for transfer of responsibility in the EU directive: Actual behaviour of the injected CO₂ conforms with the modelled behaviour; No detectable leakage; Storage site is evolving towards a situation of long-term stability While the directive is European, the aims are applicable and necessary to all worldwide storage projects. There is no information yet from experience for the 3rd point, which also derives from the first two, so the focus was on the first 2 aims.

Technical Report

Global Storage Resources Gap Analysis for Policy Makers

1 October 2011
Policy & Regulation
Storage

The IEA Greenhouse Gas R&D Programme (IEAGHG), on behalf of the Global CCS Institute, commissioned Geogreen to undertake a study reviewing the current global portfolio of operational and announced CO2 geological storage projects, in the context of key CCS deployment targets for 2020: 20 operational sites stipulated by the G8; and 100 operational sites as described in the 2009 IEA CCS Roadmap ‘Blue’ scenario (limiting atmospheric CO2 concentrations to 450ppm). The Geogreen study included detailed modelling of the timescales and resources required for storage sites to achieve bankable status, whereby final investment decisions can be made in advance of site construction, commissioning and operations. Building on this analysis, the study showed that the current CCS project portfolio could allow the G8 target to be reached provided that adequate resources are made available for a large proportion of the proposed projects and that storage associated with CO₂-EOR can be included.

Technical Report

Potential Impacts on Groundwater Resources of Geological Storage

1 October 2011
Storage

The study, comprising a literature review and desk-based assessment, aimed to produce a ‘high level’ overview of potential impacts on groundwater resources from storage operations, concentrating on DSF storage across a range of typical regional settings. The study also highlighted the current state of knowledge and/or gaps, recommending further research priorities where appropriate.

Technical Report

Combined Modelling Wellbore Integrity Network Meeting

1 October 2011
Event Proceedings
Storage

This combined meeting of the IEAGHG Modelling and Wellbore Integrity networks was held from the 27th to the 29th of April 2011, in Perth, Australia, hosted by Curtin University and the University of Western Australia and sponsored by Shell, Chevron, Curtin University, the University of Western Australia and the Government of Western Australia Department of Mines and Petroleum. Seventy five delegates attended the meeting, representing 9 different countries. The three day event looked at the complexity of models, real projects (local and international), geomechanics and wellbore integrity, followed by a field visit to the site of the planned Collie Southwest CO₂ Hub. T

Technical Report

Feasibility of Monitoring Tools

1 September 2011
Storage

This report sets out to identify and evaluate appropriate monitoring tools for substances mobilised by the actions/reactions caused by CO2 injection during CCS operations and includes a brief description of the types of physical, chemical and biological parameters that might be affected. Monitoring these is important for verifying predicted migration pathways and characterising changes in the physical and chemical properties of associated sedimentary formations and groundwater. Understanding these processes and mapping their distribution aids in the identification of potential monitoring tools and facilitates an assessment of their utility in a particular monitoring domain. Matching the appropriate monitoring tool with the monitoring environment is therefore critical to designing an effective monitoring and verification program

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