Grain Size and Bioclogging Effect on the Permeability of Sandy Porous Media

Master's Thesis from the year 2014 in the subject Geography / Earth Science - Geology, Mineralogy, Soil Science, University of Manchester, course: Chemical Engineering with Design, language: English, abstract: Unearth the unseen world beneath our feet, where microscopic life orchestrates a silent revolution in resource recovery. This groundbreaking study plunges into the intricate relationship between grain size and bioclogging within porous media, revealing how these seemingly disparate elements converge to influence the efficiency of Microbial Enhanced Oil Recovery (MEOR). Explore the dynamic interplay of fluid flow, solute transport, and microbial activity as this research unveils the mechanisms by which varying grain sizes impact biofilm formation and permeability alteration. Utilizing advanced Scanning Electron Microscopy (SEM), witness firsthand the visual evidence of microbial colonization on different grain surfaces, providing unprecedented insight into the bioclogging process. Discover how the manipulation of these subsurface ecosystems can optimize oil extraction, offering a sustainable path towards meeting global energy demands. This investigation delves into the heart of MEOR, examining the influence of sucrose as a carbon source and its subsequent effect on relative hydraulic conductivity and relative mobile porosity. Gain a comprehensive understanding of the theoretical underpinnings governing fluid behavior in porous media, coupled with meticulously designed experimental methodologies that illuminate the complexities of bioclogging. This research not only expands our knowledge of MEOR but also provides practical recommendations for future work, paving the way for innovative strategies in reservoir management and enhanced oil production. Keywords: Bioclogging, Microbial Enhanced Oil Recovery (MEOR), permeability, porous media, grain size, biofilm, hydraulic conductivity, scanning electron microscopy (SEM), sucrose, sand, relative hydraulic conductivity, relative mobile porosity, fluid dynamics, reservoir engineering, sustainable energy. Delve into this exploration to find out how strategic bioclogging can unlock trapped resources, contributing to a future where microbial power fuels our world. This work carefully explores how the manipulation of grain size can improve MEOR.