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Journal Article

Understanding Well Load-up Behaviour in CO 2 Wells During CO 2 Back-production Field Test at the Ketzin Pilot Site, Germany – Turner Criterion Revisited

Authors
/persons/resource/alieb

Liebscher,  A.
6.3 Geological Storage, 6.0 Geotechnologies, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/wiese

Wiese,  B.
6.3 Geological Storage, 6.0 Geotechnologies, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/fmoeller

Möller,  F.
6.3 Geological Storage, 6.0 Geotechnologies, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Bannach,  Andreas
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2730900.pdf
(Publisher version), 302KB

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Citation

Liebscher, A., Wiese, B., Möller, F., Bannach, A. (2017): Understanding Well Load-up Behaviour in CO 2 Wells During CO 2 Back-production Field Test at the Ketzin Pilot Site, Germany – Turner Criterion Revisited. - Energy Procedia, 114, 4188-4192.
https://doi.org/10.1016/j.egypro.2017.03.1559


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_2730900
Abstract
A CO2 back-production test was performed at the pilot site for geological CO2 storage at Ketzin, Germany. Over thirteen days 240 tons of CO2 were safely back-produced from the reservoir; 55 m3 of saline reservoir fluid was continuously co-produced. Throughout different rate stages of the back-production experiment downhole pressure conditions were very stable and the gas/fluid ratio remained constant, indicating that no well load-up occurred. The calculated minimum flow velocities based on the standard Turner criterion are, however, up to one order of magnitude higher than the actual flow velocities. Thus, a modified Turner parameterization is required for CO2-dominated well.