Mineral Migration and Regeneration Reactions in the Two Phase Flow Experiment

Abstract

Scientists look forward to developing of emerging carbon oxide reduction technology which by artificial injection methods of industrial carbon dioxide geological storage in deep saline aquifers or geological structures, and then inhibit carbon dioxide accumulated in the atmosphere or prevent generation of the greenhouse effect. In this case, by using core flooding test for simulation the physical properties of the two-phase fluid flow (saline and carbon dioxide) in deep saline aquifers, the loss of mineral composition and regeneration reactions can be understood. In the initial experiments, we used Berea sandstone for core flooding test. In addition, the specimen was detected by X-ray diffraction and Scanning Electron Microscopy (SEM) analysis during the period before and after the test, to understand whether mineral crystal phase and microstructure changes had been occurred. After the core flooding test, the specimens were detected by energy spectrum of elements and elemental distribution analysis, and the main elements were oxygen and silicon.