Combustion in miscible displacement for high-pressure air injection
| Autor: | Dan Marchesin, Alexei A. Mailybaev, Johannes Bruining, N. Khoshnevis Gargar, M. A. Endo Kokubun |
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| Rok vydání: | 2020 |
| Předmět: |
Inert
Materials science chemistry.chemical_element 010103 numerical & computational mathematics Mechanics Combustion 01 natural sciences Nitrogen Oxygen Computer Science Applications Computational Mathematics chemistry.chemical_compound Computational Theory and Mathematics chemistry Carbon dioxide 0101 mathematics Computers in Earth Sciences Porous medium Displacement (fluid) Secondary air injection |
| Zdroj: | Computational Geosciences. 24:1663-1672 |
| ISSN: | 1573-1499 1420-0597 |
| DOI: | 10.1007/s10596-020-09977-y |
| Popis: | This paper describes miscible displacement upon air injection in a porous medium saturated with oil corresponding to conditions of high-pressure air injection (HPAI). We assume that injection fluids and produced fluids are fully miscible with the oil at the prevailing high pressure. We use three pseudo-components, viz., oxygen, oil, and an inert component, which includes nitrogen, carbon dioxide, etc. To model the fingering instabilities, we follow a similar procedure as proposed by Koval (SPE J. 3(02):145–154, 1963) and include the reaction between oxygen and oil in the Koval model. The equations are solved numerically, using a finite element software package (COMSOL). The results show that a combustion wave is formed. We study the performance at low and high viscosities and show that the reaction improves the speed and degree of recovery at later times. |
| Databáze: | OpenAIRE |
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