In-situ stress field characterization to support the energy transition

Fellgett, Mark; Williams, John; Kingdon, Andrew ORCID: https://orcid.org/0000-0003-4979-588X. 2023 In-situ stress field characterization to support the energy transition. [Speech] In: One-Day Seminar on Energy Transition Part-1, London, UK, 22 Jun 2023. (Unpublished)

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Abstract/Summary

A new focus on low carbon energy and reduction of CO2 emissions have led to new questions about how the subsurface is utilised and highlighted knowledge gaps in our current understanding. Knowledge of the in-situ stress field is critical for the planning and implementation of large-scale subsurface storage projects such as for disposal of carbon dioxide, and radioactive waste or temporary storage of surplus energy from renewables. Despite the existence of an open-source global resource in the World Stress Map, there are still significant uncertainties in the characterisation of the UK stress field. This is driven by a lack of both available data and resourcing to investigate existing data. The Stress history and reservoir pressure for improved quantification of CO2 storage containment risks (SHARP Storage) project is a collaboration between 16 research institutions and commercial companies under the Accelerating CCS Technologies (ACT3) Programme. The project aims to understand and reduce the uncertainties related to subsurface CO2 storage containment risk by characterising the in-situ stress and its evolution, with a particular focus on the North Sea. This initiative promotes not only knowledge sharing but also development of best practice characterisation. This benefits not just existing projects but also future projects for other industries. This talk will describe methodologies for discovery of relevant data and its analysis to assess the stress orientation and magnitude of the southern North Sea across national median lines. The work highlights limitations with current publicly available data and suggested future routes for delivering authoritative assessment of the stress regime.

Item Type:	Publication - Conference Item (Speech)
Additional Keywords:	SHARP, In-Situ Stress, Carbon Capture and Storage
NORA Subject Terms:	Earth Sciences
Date made live:	22 Aug 2023 16:56 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/535651

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