Journal
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
Volume 109, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2021.103369
Keywords
Carbon dioxide (CO2) Carbon capture and storage (CCS); Sensors; Video-CTD; CO2 release
Categories
Funding
- European Union's Horizon 2020 research and innovation programme [654462]
- H2020 Societal Challenges Programme [654462] Funding Source: H2020 Societal Challenges Programme
Ask authors/readers for more resources
A controlled CO2 release experiment was conducted in the Goldeneye complex area, a depleted gas field located in the UK sector of the North Sea, to evaluate the viability of water column monitoring for detecting injected CO2 and assess the spatial extent of the release. The dispersion of the CO2 plume was strongly influenced by tidal circulation in the area, with the strongest signals detected within 8m of the bubble stream during low tide.
Within the framework of the STEMM-CCS project, a controlled CO2 release experiment was conducted under real-life conditions in the Goldeneye complex area, a depleted gas field located in the UK sector of the North Sea. Here, the viability of water column monitoring for the detection of the injected CO2 is evaluated. Real-time pH and pCO2 measurements were taken in the water column during the CO2 release experiment. Monitoring was carried out throughout the full water column, from the near-seafloor to the sea surface, in order to assess the spatial extent of the CO2 release. The dispersion of the CO2 plume was strongly influenced by tidal circulation in the area. The strongest signals were detected within 8 m of the bubble stream during low tide. The lowest pH and highest pCO2 values were 7.965 and 942.1 mu atm, respectively, corresponding to variations of 16.4% [H+] and 125.6% from baseline values. The pCO2 baseline dynamics of Goldeneye area were assessed by the evaluation of the natural pCO2-O2 covariance. The estimation of seasonal thresholds for anomalous pCO2 (pCO2:O2 ratio May= 1.63 +/- 0.04) allowed us to assess with confidence the non-biological origin of the detected CO2 during the release experiment.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available