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An evaluation of hydrocarbon deposit tightness in aspect of CO2 sequestration

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Depleted hydrocarbon deposits due to large capacity and proven tightness are often considered as prime candidates for CO2 sequestration in geological structures. The tightness of these structures is mainly connected with the existence of water saturated overbunden rocks of very low permeability which form a natural barrier for the migration of hydrocarbons. This paper explains the sealing mechanisms of caprocks resulting from capillary forces at the interface of hydrocarbon – water and carbon dioxide – water contact. Other ways of caprock leakage due to rock fracturing or reactivation of natural faults and fi ssures were also investigated.
s. 671--682
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Bibliogr. 14 poz., rys., wykr.
  • AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, Krakow, Poland
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The research leading to these results has received funding from the Polish-Norwegian Research Programme operated by the National Centre for Research and Development under the Norwegian Financial Mechanism 2009–2014 in the frame of Project Contract No. Pol-Nor/235294/99/2014
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