Reservoir Physics and Chemistry (GEO502)
Exploiting sedimentary rock reservoirs for water supply, waste storage, or hydrocarbon production in a sustainable an energy-efficient way requires a good understanding of the chemistry and physics of the phases involved. Understanding reservoirs is the key to manage, maintain and increase the storage capacity or reserves. Definition of reservoir rocks, their properties and the pressure, volume, and temperature (PVT) conditions that affect their fluids is part of the basic knowledge that both geoscientists and engineers need to confront daily in the industry. This course introduces geological, physical, and chemical processes that control the pressure, volume and temperature (PVT) conditions, which in turn affects the properties of rocks and pore fluids at subsurface reservoir conditions.
Carbon dioxide injection is used for reducing greenhouse emissions. Gas and water injection is common for pressure support and improved displacement of hydrocarbons from reservoirs. The reactive species in the injection fluid could cause dissolution or precipitation of minerals or salts in the injection well, near the wellbore zone, and further into the reservoir. This affects the performance of production wells, influence the rock formation strength/stability, fluid permeability, and reservoir wettability, which controls hydrocarbon recovery. Good knowledge about reservoir chemistry can minimize problems related to reduction in injectivity and productivity, and at the same time optimize the storage capacity or recovery potential from reservoirs.
This course addresses the chemical properties of each phase in the reservoir, Mineral, Water, Gas, and/or hydrocarbon, their chemical and physical interactions, and how this can affect physical flow properties, and the integrity of the reservoir for optimized reservoir management.
Course description for study year 2023-2024. Please note that changes may occur.