Reservoir Parameters Classification of Miocene Formation from Fractal Approach to Well Logging, Porosimetry and NMR

Sandy-shaly thin-bedded formations are in the limelight of petroleum geoscientists since the well recognized, thick, homogeneous hydrocarbon reservoirs had been exploited or are inevitably going to be exploited. Because thin-bedded formation provide still the great amount of the world hydrocarbon production any improvement of the methodology of determining sandstone/sand volume and calculate proper net to gross value are valuable. In the paper the methodology of combining information from the fractal approach to well logging, mercury porosimetry results and laboratory NMR measurements outcomes for the Miocene sandy-shaly formation from the Polish part of the Carpathian Foredeep is presented. Turbidites, deltaic sediments of various facies and littoral sea shore facies representatives and other rocks comprise the big group of sandy-shaly thin-bedded reservoirs of water and hydrocarbons. Each new or modified methodology of classification of such formation to select layers of good reservoir parameters contributes to improvement of the productivity of the discussed reservoirs.