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Permeability characterization and the impacts of reactive transport

Speaker: Hang Deng, Graduate Student
Series: EEWR Brown Bag Seminars
Location: Engineering Quad E219
Date/Time: Friday, April 1, 2011, 12:00 p.m. - 1:00 p.m.

Abstract:

Permeability characterization of geological formations is an indispensible part in subsurface practices, such as oil and gas drilling, geothermal production, nuclear waste disposal and carbon capture and storage etc. The presence of natural and induced fracture networks and geochemical reactions (e.g. mineral dissolution and precipitation) can modify permeability by orders of magnitude. Therefore, improving our understandings of these permeability altering processes is required, in order to enhance our capabilities of estimating reservoir production, and assessing the security of waste disposal and CO2 storage sites. This presentation includes hydrogeological characterization of a potential CO2storage site -Ottawa County, Michigan, as well as discussions on how variations in geometrical parameters of microfracture networks and reactive transport processes will affect permeability.