Geological controls on porosity permeability relationship in understanding quality of hydrocarbon bearing reservoir rocks (original) (raw)
Abstract
Abstract: Porous media is very important in the understanding of storage and recovery of hydrocarbons. The naturally occurring porous media is controlled by depositional and post depositional conditions. The important geologic factors that control reservoir quality are porosity and permeability in oil and gas reservoirs. Porosity permeability relationship is one of the most complicated, case sensitive and most referred in understanding quality of reservoir in clastic and carbonate depositional models. In this, three lithologies and their intermediate derivatives needs careful attention, Sandstone, shale/ mudstone and carbonate. On global scale it is seen that about 60 % reservoirs are clastic in nature, 39% are carbonate in composition and 1 % are fractured reservoirs. With growing potential of shale as a reservoir rock there is an increased need to map quality of shale and other tight horizons. The allochthonous process for clastic and autochthons and greater chemical reactivity fo...
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