Geophysics for the Evaluation of Reactive Systems

The field of geosciences, including geophysics, plays a crucial role in addressing society's pressing concerns related to energy demand, climate change, resource preservation, and environmental protection. Reactive systems encountered in this context are characterized by intricate interactions among various phases, environmental conditions, physical and chemical processes. Achieving a comprehensive understanding of these processes and quantitatively evaluating reactive systems necessitates a holistic scientific approach. This approach encompasses efficient categorization of reactive systems, the development of appropriate experimental and computational tools, and the collection and dissemination of relevant data. In this context, this thesis contributes to geophysics and petrophysics with a focus on reactive systems. It presents and interprets laboratory datasets that address various complex aspects of rock behavior, including the presence of graphite, resulting anisotropy, and the challenging petrophysical characteristics of carbonate rocks. This compilation of research results provides a multifaceted perspective on the complex nature of rocks, including their mineralogical, physical, and chemical properties. It thus contributes to a deeper comprehension of electrical rock properties and their practical utility. Upon examining carbonate rocks and the response of graphitic schist to CO$_\mathrm{2}$ under reservoir conditions, it becomes clear that the impact of increased reactivity in a system on geophysical parameters varies depending on the specific characteristics of the rocks and systems under investigation. Consequently, geophysical methods aiming at a quantitative assessment of reactive systems must exhibit robustness and efficiency in order to be effectively applied in a site- and system-specific manner. Expanding on this foundation, computational methods have been developed to aid in the quantitative analysis of reactive processes in laboratory experiments.