Szczegóły publikacji
Opis bibliograficzny
The role of capillary trapping during geologic $CO_{2}$ sequestration / Ewa KNAPIK, Damian JANIGA, Paweł WOJNAROWSKI, Jerzy STOPA // AGH Drilling, Oil, Gas ; ISSN 2299-4157. — Tytuł poprz.: Wiertnictwo, Nafta, Gaz ; ISSN: 1507-0042. — 2015 — vol. 32 no. 4, s. 657–667. — Bibliogr. s. 667, Summ.
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 101073 |
|---|---|
| Data dodania do BaDAP | 2016-09-30 |
| Tekst źródłowy | URL |
| DOI | 10.7494/drill.2015.32.4.657 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | AGH Drilling, Oil, Gas |
Abstract
Capillary trapping is thought to be one of the primary CO2 fixing mechanisms in a porous medium when it is stored. While CO2 is injected, gas displaces formation water (brine) in the process called drainage. In the case of the rock mass wetted by water, formation water remains adsorbed in wall pores and micropores. Once the injection process has been completed, gas is displaced by the natural water in the process referred to as imbibition. In that way CO2, being a non-wetting phase, is held in the form of dispersed bubbles as an immobile phase. The process occurs fast and allows for a regular storage of large amounts of CO2. The process is dependent upon numerous parameters, including capillary pressure and contact angle, but such measurements cannot be easily taken for rock cores in reservoir conditions. Another problem is the fact that it is difficult to separate the impact of such mechanisms as dissolution and mineral trapping. So far capillary trapping has been deeply analyzed in terms of hydrocarbon recovery and contaminant remediation. The goal of this article is to:– present a physiochemical basis of capillary trapping in CCS context,– simulate the impact of relative permeability hysteresis on geological CO2 storage.
