Feasibility Study and Results from a Baseline Multi-Tool Active Seismic Acquisition for CO 2 Monitoring at the Hellisheiði Geothermal Field

Fabio Meneghini, Flavio Poletto, Cinzia Bellezza (), Biancamaria Farina, Deyan Draganov, Gijs Van Otten, Anna L. Stork, Gualtiero Böhm, Andrea Schleifer, Martijn Janssen, Andrea Travan, Franco Zgauc and Sevket Durucan
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Fabio Meneghini: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Flavio Poletto: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Cinzia Bellezza: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Biancamaria Farina: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Deyan Draganov: Department of Geoscience & Engineering, TU Delft, Stevinweg 1, 2628 CN Delft, The Netherlands
Gijs Van Otten: Seismic Mechatronics, Habraken 2150, 5507 TH Veldhoven, The Netherlands
Anna L. Stork: Silixa Ltd., 230 Centennial Avenue Centennial Park, Elstree WD6 3SN, UK
Gualtiero Böhm: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Andrea Schleifer: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Martijn Janssen: Department of Geoscience & Engineering, TU Delft, Stevinweg 1, 2628 CN Delft, The Netherlands
Andrea Travan: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Franco Zgauc: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale—OGS, Borgo Grotta Gigante 42/C, Sgonico, 34010 Trieste, Italy
Sevket Durucan: Department of Earth Science and Engineering, South Kensington Campus, Royal School of Mines—Imperial College London, London SW7 2AZ, UK

Sustainability, 2024, vol. 16, issue 17, 1-23

Abstract: CO 2 capture and underground storage, combined with geothermal resource exploitation, are vital for future sustainable and renewable energy. The SUCCEED project explores the feasibility of re-injecting CO 2 into geothermal fields to enhance production and store CO 2 for climate change mitigation. This integration requires novel time-lapse monitoring approaches. At the Hellisheiði geothermal power plant in Iceland, seismic surveys utilizing conventional geophones and a permanent fiber-optic helically wound cable (HWC) for Distributed Acoustic Sensing (DAS) were designed to provide subsurface information and CO 2 monitoring. This work details the feasibility study and active seismic acquisition of the baseline survey, focusing on optical fiber sensitivity, seismic modeling, acquisition parameters, source configurations, and quality control. Post-acquisition signal analysis using a novel electromagnetic vibrating source is discussed. The integrated analysis of datasets from co-located sensors improved quality-control performance and geophysical interpretation. The study demonstrates the advantages of using densely sampled DAS data in space by multichannel processing. This experimental work highlights the feasibility of using HWC DAS cables in active surface seismic surveys with an environmentally friendly electromagnetic source, providing also a unique case of joint signal analysis from different types of sensors in high-temperature geothermal areas for energy and CO 2 storage monitoring in a time-lapse perspective.

Keywords: seismic monitoring; geothermal; CCUS; HWC-DAS; sustainability (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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