SUCCEED: A CO2 storage and utilisation project aimed at mitigating against greenhouse gas emissions from geothermal power production

Abstract

The non-condensable gases in most geothermal resources include CO2 and smaller amounts of other gases. Currently, the worldwide geothermal power is a small sector within the energy industry, and CO2 emissions related to the utilisation of geothermal resources are consequently small. In some countries, however, geothermal energy production contributes significantly to their energy budget and their CO2 emissions are relatively significant. SUCCEED is a targeted innovation and research project which aims to investigate the reinjection of CO2 produced at geothermal power production sites and develop, test and demonstrate at field scale innovative measurement, monitoring and verification (MMV) technologies that can be used in most CO2 geological storage projects. The project is carried out at two operating geothermal energy production sites, the Kızıldere geothermal field in Turkey and the CarbFix project site at the Hellisheiði geothermal field. Together with a brief description of the seismic monitoring technologies proposed in the project, this paper presents the details of the two field sites and the progress made in installing and testing of the surface fibre-optic cables at the Hellisheiði geothermal field in Iceland.

Seismic velocity characterisation and survey design to assess CO2 injection performance at Kızıldere geothermal field

“…The seismic vibrator driven by electric linear synchronous motors (LSM) developed by Seismic Mechatronics BV easily generates this low frequency content with high force, without suffering from low repeatability issues due to its frictionless design (Noorlandt et al, 2015). A more detailed description of the seismic monitoring technologies used in SUCCEED project is presented in Durucan et al, (2021).…”

Imaging CO2$_2$ reinjection into basalts at the CarbFix2 reinjection reservoir (Hellisheiði, Iceland) with body‐wave seismic interferometry

“…The Synergetic Utilisation of CO$$_2$$ storage Coupled with geothermal EnErgy Deployment (SUCCEED) project aims to show that CO$$_2$$ reinjection increases geothermal performance and how different seismic techniques can be used for monitoring injected CO$$_2$$ (Durucan et al., 2021). This is accompanied by seismic field campaigns in two locations.…”

Multi-Sensor Seismic Processing Approach Using Geophones and HWC DAS in the Monitoring of CO2 Storage at the Hellisheiði Geothermal Field in Iceland

“…Carbon capture, utilisation and underground storage (CCUS) and developments for the utilisation of geothermal resources are focal points for the future clean and renewable energy strategies. The main objectives of the SUCCEED project [2] are to explore and demonstrate the feasibility of utilising produced CO 2 for re-injection to enhance geothermal performance, while also storing the CO 2 as an action for climate change mitigation. The studies have been carried out in two existing facilities, at Kizildere in Turkey [3] and Hellisheiði in Iceland, that present a uniquely active geology and natural conditions suitable for geothermal energy production.…”

“…The DAS technology offers dense spatial and temporal sampling, less than 1 m and up to 100 kHz, respectively; measurements can be made on a single cable up to tens of km long. Another advantage of the fibre-optic technology over traditional seismic instruments (geophones) is that cables with polyimide coatings enable DAS measurements in high temperatures up to 300 • C, as often experienced in geothermal environments [2]. Fibre-optic sensing cables have been shown to be suitably robust for extended duration installations in geothermal fields [15], making them ideal to test and assess monitoring techniques at the Hellisheiði geothermal field to improve the long-term repeatable monitoring with a permanent installation.…”