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| Description
| - The main goal of the research was to study interactions of supercritical CO2 with host rocks and fluids in the storage reservoir, as well as with technical materials used in injection/observation/production wells (steel casing, cement). The research programme consisted of selection and preparation of materials and samples, laboratory experiments and measurements, modelling and evaluation of results. The experimental activities were based on static batch experiments where rock & material samples interacted with supercritical CO2 and brine under reservoir conditions. The materials used for experiments were borehole casing steel, anticorrosive steel, cement and host rock samples. Rock samples used were mainly reservoir rock sandstones, representing various Czech structures potentially suitable for geological storage of CO2. All samples were carefully characterised using XRD analyses, electron microprobe analyses and BET surface area determination prior and after the experiment. The solution used for the experiments was a synthetic brine, prepared on the basis of geochemical evaluation of groundwater composition in potential CO2 storage horizons. The samples were inserted in a high-pressure steel chamber that was closed and filled with supercritical CO2 (p=7.5 MPa, temp. 35 °C). The samples were kept under selected conditions for at least 96 days. The analyses of rock samples after the experiments showed only minor mineralogical changes that can be attributed to spCO2 exposure. Differences in mineral content or pore volume after spCO2 exposure generally do not exceed those that can be attributed to sample heterogeneity and natural variation. The samples basically kept the properties (mineral composition, pore volume, hydraulic conductivity) that are important for CO2 injectivity into the reservoir. More interesting results are appearing at analyses of well materials, especially cement samples, where significant changes in mineralogy were recorded.
- The main goal of the research was to study interactions of supercritical CO2 with host rocks and fluids in the storage reservoir, as well as with technical materials used in injection/observation/production wells (steel casing, cement). The research programme consisted of selection and preparation of materials and samples, laboratory experiments and measurements, modelling and evaluation of results. The experimental activities were based on static batch experiments where rock & material samples interacted with supercritical CO2 and brine under reservoir conditions. The materials used for experiments were borehole casing steel, anticorrosive steel, cement and host rock samples. Rock samples used were mainly reservoir rock sandstones, representing various Czech structures potentially suitable for geological storage of CO2. All samples were carefully characterised using XRD analyses, electron microprobe analyses and BET surface area determination prior and after the experiment. The solution used for the experiments was a synthetic brine, prepared on the basis of geochemical evaluation of groundwater composition in potential CO2 storage horizons. The samples were inserted in a high-pressure steel chamber that was closed and filled with supercritical CO2 (p=7.5 MPa, temp. 35 °C). The samples were kept under selected conditions for at least 96 days. The analyses of rock samples after the experiments showed only minor mineralogical changes that can be attributed to spCO2 exposure. Differences in mineral content or pore volume after spCO2 exposure generally do not exceed those that can be attributed to sample heterogeneity and natural variation. The samples basically kept the properties (mineral composition, pore volume, hydraulic conductivity) that are important for CO2 injectivity into the reservoir. More interesting results are appearing at analyses of well materials, especially cement samples, where significant changes in mineralogy were recorded. (en)
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| Title
| - Laboratory experiments on CO2-rock-fluid interactions under reservoir conditions. Poster - 9th CO2GeoNet Open Forum - “Horizon CO2 storage”, May 20-22, 2014, Venice, Italy
- Laboratory experiments on CO2-rock-fluid interactions under reservoir conditions. Poster - 9th CO2GeoNet Open Forum - “Horizon CO2 storage”, May 20-22, 2014, Venice, Italy (en)
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| skos:prefLabel
| - Laboratory experiments on CO2-rock-fluid interactions under reservoir conditions. Poster - 9th CO2GeoNet Open Forum - “Horizon CO2 storage”, May 20-22, 2014, Venice, Italy
- Laboratory experiments on CO2-rock-fluid interactions under reservoir conditions. Poster - 9th CO2GeoNet Open Forum - “Horizon CO2 storage”, May 20-22, 2014, Venice, Italy (en)
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| skos:notation
| - RIV/00025798:_____/14:00000454!RIV15-MPO-00025798
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(FR-TI1/379), P(TA03020405)
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00025798:_____/14:00000454
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - CO2 storage, CO2-rock-fluid interactions, laboratory experiments, saline aquifers, hydrocarbon reservoirs (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Havlová, Václava
- Hladík, Vít
- Kolejka, Vladimír
- Vrbová, Veronika
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