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Sökning: WFRF:(Edlmann Katriona)

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1.
  • Niemi, Auli, et al. (författare)
  • Chapter 7: Site Characterization
  • 2017
  • Ingår i: Geological Storage Of Co<sub>2</sub> in Deep Saline Formations. - Dordrecht : Springer Netherlands. - 9789402409949 - 9789402409963 ; , s. 309-380
  • Bokkapitel (refereegranskat)abstract
    • A necessary first step in qualifying a specific site for CO2 storage and for quantifying its relevant properties is a proper site characterization. Site characterization provides the ultimate input data for reservoir modeling and for all the predictions concerning the storage complex and its surroundings. It also provides baseline information for monitoring the behavior of injected CO2. It also incorporates input from laboratory experiments described in Chap.6. This chapter gives an overview of site characterization procedures with respect to geological storage of CO2, by starting from regulatory requirements and guidelines and proceeding to specific methodologies for assessing the sites properties in terms of CO2 geological storage.
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2.
  • Niemi, Auli, et al. (författare)
  • Heletz experimental site overview, characterization and data analysis for CO2 injection and geological storage
  • 2016
  • Ingår i: International Journal of Greenhouse Gas Control. - : Elsevier BV. - 1750-5836 .- 1878-0148. ; 48, s. 3-23
  • Tidskriftsartikel (refereegranskat)abstract
    • This paper provides an overview of the site characterization work at the Heletz site, in preparation to scientifically motivated CO2 injection experiments. The outcomes are geological and hydrogeological models with associated medium properties and baseline conditions. The work has consisted on first re-analyzing the existing data base from similar to 40 wells from the previous oil exploration studies, based on which a 3-dimensional structural model was constructed along with first estimates of the properties. The CO2 injection site is located on the saline edges of the Heletz depleted oil field. Two new deep (> 1600 m) wells were drilled within the injection site and from these wells a detailed characterization program was carried out, including coring, core analyses, fluid sampling, geophysical logging, seismic survey, in situ hydraulic testing and measurement of the baseline pressure and temperature. The results are presented and discussed in terms of characteristics of the reservoir and cap-rock, the mineralogy, water composition and other baseline conditions, porosity, permeability, capillary pressure and relative permeability. Special emphasis is given to petrophysical properties of the reservoir and the seal, such as comparing the estimates determined by different methods, looking at their geostatistical distributions as well as changes in them when exposed to CO2.
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