The mineralogy of the clayey-silty siliceous rocks in the Bazhenov Shale Formation (Upper Jurassic) in the west Siberian Basin, Russia: The role of diagenesis and possible implications for their exploitation as an unconventional hydrocarbon reservoir

Finally, the illitic clay mineralogy of the BSF is considered in a general way in the context of their permeability, particularly as it relates to their anisotropic structure and pore water chemistry. It is also suggested that the siliceous nature of the Bazhenov shale makes it a suitable candidate for the creation of enhanced permeability through hydraulic fracturing technology, although matrix permeability may be adversely affected by reactions involving the external basal surfaces of the illitic clays exposed in slit-like pores.