Underground Storage of Natural Gas in Hydrate State: Primary Injection Stage
| Autor: | K. K. Argunova, I. I. Rozhin, V. V. Popov, E. A. Bondarev |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
geography
Environmental Engineering Real gas geography.geographical_feature_category 010504 meteorology & atmospheric sciences business.industry Water flow 010102 general mathematics Energy Engineering and Power Technology Aquifer Mechanics Condensed Matter Physics 01 natural sciences Physics::Geophysics Permeability (earth sciences) Natural gas Modeling and Simulation 0101 mathematics Hydrate Porosity Porous medium business Geology 0105 earth and related environmental sciences |
| Zdroj: | Journal of Engineering Thermophysics. 27:221-231 |
| ISSN: | 1990-5432 1810-2328 |
| Popis: | The paper is devoted to simulation of the initial stage of natural gas hydrate underground storage: gas injection into aquifer just below permafrost rocks. It is based on the mathematical model of multiphase non-isothermal real gas and water flow in porous media. The model takes into account the transformation of gas and water into hydrate at certain temperature, which depends on gas flow pressure. The dynamics of hydrate and water saturation as well as the pressure and temperature fields in a reservoir with given porosity, permeability, and initial values of pressure, temperature and water saturation were studied. An implicit finite-difference scheme is used to approximate the original boundary-value problem. The finite-difference equations are solved using simple iteration and sweeping algorithms. Several examples of calculations corresponding to real cases are given. Calculations have revealed that the final result strongly depends on the combination of porosity and permeability of a reservoir. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink