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2nd Meeting of the Geological Storage Modelling Network

1 April 2010
Event Proceedings
Storage

The second meeting of the IEAGHG International Research Network on CO₂ Geological Storage Modelling was hosted by the University of Utah in Salt Lake City, on February 16th and 17th, 2010. The meeting comprised four technical sessions: Modelling Methodology and Recent Advances, Integrated Roles and Objectives of Modelling, Modelling of Real Storage Projects; Case Studies and International Efforts towards Best Practice and Modelling Protocols. The agenda was designed to provide ample time for discussions between participants, with breakout groups in sessions 1 and 2, and plenary discussions following sessions 3 and 4. Discussions following Session 1 focussed on recent advances in modelling. Current theoretical and laboratory scale research has continued to advance our understanding of the processes which will control the behaviour of stored CO₂ in the subsurface and govern potential leakage mechanisms. However, there was a consensus that an increased number of large-scale storage projects are required to provide data with which modelling methods can be calibrated

Technical Review

Corrosion and selection of materials for carbon capture and storage

1 January 2010
Capture
Storage

The IEA Greenhouse Gas R&D Programme (IEAGHG) has studied many aspects of Carbon Dioxide Capture and Storage (CCS). As part of this programme, the current study investigates the potential corrosion risks in the CCS processes and proposes suitable materials of construction to mitigate those risks. The scope of this study covers all aspects of the CCS systems, including the carbon capture plants, transport of CO₂ and injection wells.

Technical Report

CCS Site Selection and Characterisation Criteria

1 December 2009
Capture
Storage

The I EA G reenhouse G as R &D P rogramme ( IEA GHG ) ha s recently co mmissioned the Alberta Research Council in Canada to conduct a review of storage site selection criteria and site ch aracterisation methods in o rder to produce a s ynthesis r eport. Among the va rious elements of the CO₂ capture and storage (CCS) chain, t he stage of storage site selection and characterisation is o f cr itical importance be cause any storage s ite m ust de monstrate that it satisfies three fundamental requirements: 1. capacity to store the intended volume of CO₂ 2. injectivity, to accept/take CO over the lifetime of the operation, 2 3. containment, to en sure t hat C O at the rate that it is supplied from the emitter(s), 2 will n ot m igrate an d/or leak out of t he s torage unit (safety and security of storage). This report reviews the literature on the subject on site selection and characterisation since the publication of the IPCC Special Report on CCS, and provides a synthesis and classification o f criteria.

Technical Report

CO₂ Storage in Depleted Oil Fields

1 December 2009
Storage

The study took as its starting point, IEA GHG Report on PH3/23 undertaken in 2000 as its base line data set. The study was to assess the data within the report and determine whether there was newer data on issues, (e.g. CO2 use/bbl oil produced in EOR floods) that could be used to revise global estimates.

Technical Review

A Review of the In'tl State of the Art in Risk Assessment Guidelines and Proposed Termimology for Use in CO₂ Geological Storage

1 December 2009
Storage

The work carried out included the following key elements: a review of the international terminology and regulations with a focus on public health and engineering systems risk assessment and management; a compilation of generic and specific terminology for risk assessment and management relevant for CO₂ geological storage; a formal report of the methods used, results and conclusions.

Technical Report

5th Meeting of the Monitoring Network

1 November 2009
Event Proceedings
Storage

This was the 5th meeting of the IEA Greenhouse Gas R&D Programme (IEA GHG) Monitoring Network. Since the inception of the Monitoring Network a significant amount of work has been done in this field. There are now a great number of very elaborate Carbon Capture and Storage (CCS) demonstration projects occurring worldwide with each one developing and testing new monitoring techniques. While this is happening there is also a great drive from many Governments to put in place the regulations needed to properly licence and supervise CCS activities. This meeting hoped to review where we are with both aspects of CCS and identify what questions still need to be answered

Technical Report

Development of Storage Coefficients for Carbon Dioxide Storage in Deep Saline Formations

1 November 2009
Storage

The IEA Greenhouse Gas R&D Programme (IEA GHG) commissioned the Energy and Environmental Research Centre (EERC), from the University of North Dakota, to undertake a study to develop storage coefficients for carbon dioxide (CO2) storage in deep saline formations. The project was co-sponsored by the US Department of Energy (US DOE).

Technical Review

What Have We Learned from CCS Demonstrations

1 November 2009
Industry Insights
Storage

The IEA Greenhouse Gas R&D Programme (IEA GHG) has undertaken an assessment of the learning that is being provided by operational, large-scale, pilot, demonstration and commercial CCS projects around the world. This was undertaken by questionnaire and analysis of the responses. From the analysis of the responses, key themes, learning points and areas for beneficial collaboration are identified. The extent of coverage of projects is summarised in terms of geological properties and monitoring techniques. From this initial analysis, a number of key learning areas have been identified that also warrant further investigation. These include:   <ul> <li>Effectiveness of various monitoring techniques</li> <li>Injectivity – prediction, restoration and enhancement</li> <li>Design to avoid hydrate formation</li> <li>Performance of materials in CO2 environments</li> <li>Scaling up capture train size</li> <li>Wells – designing, placing, and monitoring cementation</li> </ul>

Technical Report

4th Meeting of the Risk Assessment Network

1 July 2009
Event Proceedings
Storage

The fourth IEA GHG Risk Assessment Network Meeting was held on the 16th—17th April 2009 in Melbourne, Australia, and hosted by CO₂CRC. Cliff Kavonic of Victorian Department of Primary Industries gave the official welcome. The Victorian Government was that day publishing a report by Geoscience Victoria on the storage potential in the Gippsland basin in south Victoria. The fifty six attendees enjoyed the discussions based around the six sessions. These were on reports from other initiatives, leakage impacts, combining monitoring with modelling and risk assessment, insurance and risk, risk communication, and updates from real projects.

Technical Report

Long Term Integrity of CO₂ Storage – Well Abandonment

1 July 2009
Storage

This report focuses on potential hazards to geological storage of CO₂ related to previously abandoned deep oil and gas wells. As many prospective CO₂ storage projects will be situated in mature sedimentary basins, these operations need to accommodate previously drilled and abandoned wells. The current study aims to provide a high order evaluation of abandoned wells and their suitability to CO₂ storage operations. To this purpose an overview of the current state of knowledge on potential degradation mechanisms of typical well materials (i.e. cement and steel) is presented. Several case studies are described, illustrating some typical aspects associated with abandoned wells in the context of geological storage of CO₂. Furthermore, a geographical overview of numerous well abandonment regulations is provided, reflecting significant differences in regulatory demands around the world. Moreover, both abandonment regulations and practices historically gradually developed to the present high standards. As a consequence, especially older wells are considered to be a potential threat to long term storage integrity. Various risk assessment methodologies are described that are tailored to well integrity evaluation for geological CO₂ storage. Finally, an overview of potential corrective measures and monitoring strategies is presented.

Technical Report

5th Meeting of the Wellbore Integrity Network

1 June 2009
Event Proceedings
Storage

The IEA GHG Wellbore Integrity Network has been running for 5 years now, and the meeting in 2009 was held in Calgary, Canada. The attendance for the meeting covered the usual mix of industry, academia, research and regulators, but there was a noted increase in attendance from industrial companies. This was demonstrative of the local area that the meeting was held in, with a large number of oil companies working in the surrounding province. This increased industry representation moved the discussion sessions to areas previously not addressed, or only addressed in brief outline, and this is indicative of the progress of the meeting and its continued worth. A possibility for the future of the network will be an alteration in its role, from pure research into wellbore integrity, materials and abandonment procedures, to one of education of industrial operators, and the broaching of the gap between experience gained from the oil and gas industry, and the needs and demands of regulations relating to CO2 Capture and Storage (CCS) operations.

Technical Report

Safety in Carbon Dioxide Capture, Transport and Storage

1 June 2009
Capture
Storage

Within the next few years it is expected that an increasing number of commercial-scale demonstrations of CO2 capture and storage technology will be built and brought into operation. Many aspects of the design of such facilities including issues relating to engineering design, environmental impacts, standards and permitting have been the subject of studies undertaken for the IEA GHG. So far no study has been dedicated specifically to the issue of safety in the above ground elements of CCS systems although such safety issues have been addressed to some extent in earlier studies. This study was designed specifically to examine the safety issues which are likely to arise when preparing safety cases and planning emergency procedures for CO2 capture and storage (CCS) projects

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