Conducting comprehensive analyses of potential sites for geological CO2 storage

Autor: Jürgen E. Streit, Jim Underschultz, R. S. Root, C.J. Otto, C.M. Gibson-Poole, Allison Hennig, Simon C. Lang
Rok vydání: 2005
Předmět:
DOI: 10.1016/b978-008044704-9/50068-9
Popis: Publisher Summary This chapter illustrates that geological storage of CO2 may provide a solution to the problem of reducing anthropogenic emissions of greenhouse gases to the atmosphere. To accurately appraise a potential site in terms of its suitability for CO2 storage, a comprehensive workflow analyzing the detailed geological and geophysical characteristics of the site needs to be undertaken. In particular, potential sites need to be evaluated geologically in terms of their injectivity, containment, and capacity. Injectivity can be assessed by a review of the reservoir quality and by a detailed sequence stratigraphic model to estimate the likely flow-unit geometries and connectivity. Containment can be assessed via an analysis of the seal capacity (using MICP), and by assessing the possible migration pathways and trapping mechanisms from the structural geometry and stratigraphic architecture. In addition, integration of hydrodynamic analysis of formation water flow systems and geomechanical studies of fault stability and sustainable pore fluid pressures with the stratigraphic interpretation provide vital confirmation of the containment potential.
Databáze: OpenAIRE