Simplified reservoir models are used to estimate the boundary conditions (pressure, temperature and flow) that are relevant to the primary aims of this project. A set of boundary conditions are defined at the wellhead that represent the behaviour of the store. Data relates to publication: Sanchez Fernandez, E., Naylor, M., Lucquiaud, M., Wetenhall, B., Aghajani, H., Race, J., Chalmers, H. Impacts of geological store uncertainties on the design and operation of flexible CCS offshore pipeline infrastructure (2016) International Journal of Greenhouse Gas Control, 52, pp. 139-154. https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978197316&doi=10.1016%2fj.ijggc.2016.06.005&partnerID=40&md5=d567f0e06f561613554a1f1c2e230194 DOI: 10.1016/j.ijggc.2016.06.005

This poster on the UKCCSRC Call 1 project, Nano-seismic mapping at Aquistore, was presented at the Cranfield Biannual, 21.04.15. Grant number: UKCCSRC-C1-19.

This poster on the UKCCSRC Call 1 project Determination of water solubility limits in CO2 mixtures to deliver water specification levels for CO2 transportation was presented at the CSLF Call project poster reception, London, 27.06.16. Grant number: UKCCSRC-C1-21. Studies of the phase behaviour and water solubility of pure and impure CO2 are of great relevance to the transport phase of the carbon capture and storage (CCS) process. For transport through carbon steel pipelines, CO2 and any impurities present must be present as a single phase to avoid corrosion, and subsequent loss of pipeline integrity. Trace impurities such as H2 and N2 have been shown to alter the phase behaviour of the CO2 at high pressure. Understanding the effect of these impurities on the solubility of H2O in CO2 is vital to confirm the safety and viability of CO2 transport through carbon steel pipelines.

This poster on the UKCCSRC Call 1 project 3D Mapping of Large-Scale Subsurface Flow Pathways using Nanoseismic Monitoring was presented at the CSLF Call project poster reception, London, 27.06.16. Grant number: UKCCSRC-C1-19. Injection of fluids into geological formations induces microseismic events due to pressure changes causing either opening mode or shear mode fracturing. Injection for CO2 storage is designed to be well below the pressures required for hydraulic fracturing. Due to the inherent heterogeneity of geological formations, some existing structures will be critically stressed so small microseismic events are inevitable. Current reservoir monitoring strategies either examine time-lapse variations in the rock’s elastic properties (4D seismic) over diffuse areas, or aim to detect leakage from diffuse and point sources at the seabed (e.g. the QICS project). The aim of the project is twofold: • test the potential of a new technology (nanoseismics) for passive seismic monitoring that aims to image focused flow pathways at depth of an active CO2 injection site: the Aquistore site, Canada; • use a multi-disciplinary approach to interpret passive seismic data sets obtained during operation of the same site.

This poster on the UKCCSRC Call 1 project, Determination of water Solubility in CO2 Mixtures, was presented at the Cambridge Biannual, 02.04.14. Grant number: UKCCSRC-C1-21.

Full proposal cover sheet for scientific drilling (852-CPP) '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) April 2014. The full proposal cover sheet document is publicly available from IODP; the submitted full proposal document is restricted to the proponents for publication and for review and response from IODP. The lead submitter, on behalf to the GlaciStore consortium is Heather Stewart, British Geological Survey (BGS).The 30 proponents are from research and industry organisations in the UK, Norway and USA (BGS, Institute for Energy Technology, Lundin Norway AS, SINTEF Energy Research, Statoil ASA, University of Bergen, University of Edinburgh, University of Oslo and University of Texas at Austin). The full proposal cover sheet states the names of proponents of the ‘GlaciStore’ consortium and contact details for the lead submitter of the bid. The full proposal cover sheet comprises: an abstract of the submitted full proposal including description of project funding support as a Complementary Project Proposal: describes and states the scientific research objectives; summarises proposed non-standard measurements; tabulates details of the 13 proposed drill sites (revised from pre-proposal stage) to address the scientific objectives. The objectives are to investigate: glacial history and sedimentary architecture; fluid flow and microbial processes in shallow sediments; and the stress history and geomechanical models for 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 proponents, their affiliation, expertise and role for the submission are listed. UKCCSRC Grant UKCCSRC-C1-30.

This poster on the UKCCSRC Call 1 project, Determination of water Solubility in CO2 Mixtures, was presented at the Cranfield Biannual, 21.04.15. Grant number: UKCCSRC-C1-21.

This presentation on the UKCCSRC (UK Carbon Capture and Storage Research Centre) Call 1 project, Multi-Phase Flow Modelling for Hazardous Assessment, was presented at the Cranfield Biannual, 22.04.15. Grant number: UKCCSRC-C1-07.

This poster on the UKCCSRC Call 1 project Fault Seal Controls on Aquifer CO2 Storage Capacity was presented at the CSLF Call project poster reception, London, 27.06.16. Grant number: UKCCSRC-C1-14. Structural traps for storage of supercritical CO2 will commonly rely on a component of fault seal. Faults are among the most important natural potential migration pathways for buoyant fluids stored in reservoir rocks. Failure of storage integrity may occur either by mechanical failure or by flow across faults due to geometric juxtaposition of the reservoir against similarly permeable rocks and/or lack of a low permeability fault gouge. This project aimed to reduce uncertainty relating to the sealing capacity of faults affecting prospective North Sea saline aquifers, by: • Studying the controls on fault seal capability in naturally-occurring fault-bound CO2 accumulations (Fizzy and Oak), • Assessing the geomechanical stability of faults affecting an important saline aquifer offshore UK (Captain Sandstone), • Investigating the characteristics of apparently hydraulically-conductive faults in the North Sea (Netherlands).

A new synthetic method for studying phase behaviour is described using Attenuated Total Reflection (ATR) spectroscopy. The method has been developed to provide relevant information on the solubility of water in CO2. The dew point of water has been determined at three different pressures, viz. (4.05, 5.05 and 6.03) MPa with mole fractions of water between 0.01 and 0.04. The data obtained fill the gap in the literature in these regions of pressures and temperatures and could be of high importance in the context of Carbon Capture and Storage (CCS) technology. Indeed, the presence of water in the captured CO2 could damage the pipeline used for CO2 transport. Hence, it is very important to have a fully understanding of the behaviour of the (CO2 + H2O) mixtures in wide range of temperature relevant for CCS. The paper is available at http://www.sciencedirect.com/science/article/pii/S0021961415003547, DOI: 10.1016/j.jct.2015.09.024. UKCCSRC Grant UKCCSRC-C2-185.