Carbon capture and storage
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Pre-proposal cover sheet for scientific drilling 'GlaciStore: Understanding Late Cenozoic glaciation and basin processes for the development of secure large-scale offshore CO2 storage (North Sea)', submitted to Integrated Ocean Discovery Programme (IODP) March 2014. The pre-proposal cover sheet document is publicly available from IODP; the submitted pre-proposal document is restricted to the proponents for publication and to progress to full proposal to IODP. The lead submitter, on behalf to the GlaciStore consortium is Heather Stewart, British Geological Survey (BGS).The 25 proponents are from research and industry organisations in the UK and Norway (BGS, Institute for Energy Technology, Lundin Norway AS, SINTEF Energy Research, Statoil ASA, University of Bergen, University of Edinburgh and University of Oslo). The pre-proposal cover sheet states the names of proponents of the 'GlaciStore' consortium and contact details for the lead submitter of the bid. The pre-proposal cover sheet comprises an abstract of the submitted pre-proposal, describes and states the scientific research objectives, and tabulates details of the 12 proposed drill sites to address the scientific objectives. The objectives are to investigate the glacial history and sedimentary architecture, fluid flow and processes, and the stress history and geomechanical response in strata that have experienced multiple glacial and interglacial cycles. The table of proposed drilling sites includes the co-ordinates of the position and water depth at each proposed site, the objective for drilling and sampling and the depth to achieve the objective. The IODP pre-proposal cover sheet is a pdf format file. UKCCSRC Grant UKCCSRC-C1-30
The data consists of an extended abstract submitted to the '8th Trondheim Conference on CO2 Capture, Transport and Storage', Trondheim, Norway, 16-18th June 2015. The abstract describes work carried-out on behalf of the 'Fault seal controls on CO2 storage capacity in aquifers' project funded by the UKCCS Research Centre, grant number UKCCSRC-C1-14. The Captain Sandstone saline aquifer has a potential to store large volumes of CO2 as part of greenhouse gas mitigation strategies, however it is known to be affected by regional faults, some of which extend to the seabed. An in situ stress analysis is performed in order to deduce the stresses affecting these faults and to assess their geomechanical stability.
SCCS presentations, consultations, responses, briefings and communications on CCS and CO2 storage for the period 2005 - 2009
This poster on the UKCCSRC Call 1 project Oxyfuel and exhaust gas recirculation processes in gas turbine combustion for improved carbon capture performance was presented at the CSLF Call project poster reception, London, 27.06.16. Grant number: UKCCSRC-C1-26. This research is concerned with oxyfuel combustion in gas turbine applications, in particular concentrating on the use of modern swirl-stabilised burners. Oxyfuel is considered a particularly challenging idea, since the resultant burning velocity and flame temperatures will be significantly higher than what might be deemed as a practical or workable technology. For this reason it is widely accepted that EGR-derived CO2 will be used as a diluent and moderator for the reaction (in essence replacing the role of atmospheric nitrogen). The key challenges in developing oxyfuel gas turbine technology are therefore: • Flame stability at high temperatures and burning rates. • The use of CO2 as a combustion diluent. • Potential for CO emission into the capture plant. • Wide or variable operating envelopes across diluent concentrations. • Differences in the properties of N2 and CO2 giving rise to previously unmeasured flame heat release locations.
This poster on the UKCCSRC Call 2 project Process-Performance Indexed Design of Ionic Liquids for Carbon Capture was presented at the CSLF Call project poster reception, London, 27.06.16. Grant number: UKCCSRC-C2-199. The elevated cost of carbon capture and storage (CCS) is currently hindering its implementation at large scale. We aim to design a 'perfect' solvent for the capture of carbon dioxide (CO2). The design of the solvent is based on process performance indexes.
This presentation on the EPSRC project, CONTAIN, was presented at the Cranfield Biannual, 21.04.15. Grant number: EP/K036025/1.
This report forms part of the international SACS (Saline Aquifer CO2 Storage) project. The project aims to monitor and predict the behaviour of injected CO2 in the Utsira Sand reservoir at the Sleipner field in the northern North Sea, to assess the regional storage potential of the Utsira reservoir, and to simulate and model likely chemical interactions of CO2 with the host rock. This is the final report of Work Area 1 in SACS, whose aims were to provide a full geological characterisation of the Utsira Sand and its caprock. The report summarises the key findings of the component subtasks of Work Area 1. The report also provides references to the various SACS Technical Reports wherein the full details of the scientific work can be found. The report can be downloaded from http://nora.nerc.ac.uk/511461/.
The IEA (International Energy Agency) Weyburn Carbon Dioxide (CO2) Monitoring and Storage Project has analysed the effects of a miscible CO2 flood into a carbonate reservoir rock at an onshore Canadian oilfield. Anthropogenic CO2 is being injected as part of an enhanced oil recovery operation. The European research was aimed at analysing longterm migration pathways of CO2 and the effects of CO2 on the hydrochemical and mineralogical properties of the reservoir rock. This report is a synthesis of the principal findings of the European research effort and an assessment of how successfully the project objectives have been met. http://nora.nerc.ac.uk/3682/.
It is now generally accepted that anthropogenic CO2 emissions are contributing to the global rise in atmospheric CO2 concentrations. One possibility for reducing carbon dioxide emissions is to remove it from the flue gases of coal-fired power stations and dispose of it in underground geological reservoirs, possibly offshore in the North Sea. The feasibility of this option has been studied in detail by a consortium of European partners. As part of this study, natural occurrences of carbon dioxide were identified and preliminary information from these was obtained. The best characterised are found in the United States where the carbon dioxide reserves are exploited for use in tertiary enhanced oil recovery (EOR) programs in the Texas oilfields. The carbon dioxide reserves occur in geological structures and lithologies which are similar to those present in the North Sea. As such, these fields offer an ideal natural analogue for the disposal of carbon dioxide, since the interactions with groundwaters and reservoir lithologies have occurred on both spatial and temporal scales relevant to geological processes. Those carbon dioxide fields currently being exploited have already been studied to a limited extent by the oil companies involved. However, further study is required to provide information on the potential effects that disposing of large quantities of carbon dioxide might have on groundwaters and reservoir quality. In addition, more detailed information will be obtained on the interactions which occur during EOR using carbon dioxide. This paper presents data on some of the natural carbon dioxide fields, and compares the effects of these natural fluid-rock interactions with those observed in laboratory experiments performed to establish what reactions occur during the geological disposal of carbon dioxide. doi:10.1016/0196-8904(95)00309-6. http://www.sciencedirect.com/science/article/pii/0196890495003096.
The CO2 controlled release experiment “Quantifying and Monitoring Potential Ecosystem Impacts of Geological Carbon Storage” (QICS) assessed the impacts of potential CO2 leakage from sub-seabed carbon capture and storage reservoirs to the marine environment. During QICS, CO2 gas was released into shallow sediment in Ardmucknish Bay, Scotland, in the spring and summer of 2012. As part of this project, we investigated the effects of CO2 leakage on sedimentary phosphorus (P), an essential nutrient for marine productivity. We found no statistically significant effects during QICS, as the solid-phase P content in the sediment was constant before, during, and after exposure to CO2. However, laboratory experiments using marine sediment standard materials as well as QICS sediment revealed substantial differences among these different sediment types in their potential for P release during CO2 exposure. Employing the SEDEX sequential extraction technique to determine the sizes of the major P pools in the sediments, we showed that calcium-bound P can be easily released by CO2 exposure, whereas iron-bound P is a major sink of released P. The overall impacts of CO2 leakage on sediment P behavior appear to be low compared to natural variability. This is a publication in QICS Special Issue - International Journal of Greenhouse Gas Control, Ayumi Tsukasaki et. al. Doi:10.1016/j.ijggc.2014.12.023.