The main objective of the work was to gain a better geological and geochemical understanding of south-west Ireland, particularly the Carboniferous of south County Cork, and simultaneously contribute to the advancement of lithogeochemistry as an exploration tool. A tentative obje…
Three integrated experimental studies were carried out in order to study the membrane behavior of shale when interacting with water-based and oil-based muds. Results confirmed the belief that shales act as leaky semi-permeable membranes. Measured membrane efficiencies were low a…
The contribution of this dissertation is to expand the current knowledge of factors and mechanisms that influence the development of preferred orientation of minerlas and pores in different materials, ranging from rocks in Earth's crust to minerals in the deep Earth. Preferred o…
In 2019, the U.S. produced 75% of its natural gas from shales and 59% of its oil from tight oil resources. Multistage hydraulic fracturing along with horizontal pad drilling enabled operators to increase significantly production from these resources. Despite the vastness of shal…