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Pore space characterization is an essential element of reservoir characterization, often based on combination of different laboratory techniques. The study concerns mercury injection capillary pressure, low field nuclear magnetic resonance, gas permeability measurements and X-ray diffraction analysis on Miocene sandstones and mudstones. Core samples were taken from several boreholes from the Siedleczka area, which is located in an important gas province of Poland пїЅ the Miocene Carpathian Foredeep Basin (southeas...

The paper concerns the pores systems characterization of the Miocene mudstone samples provided by mercury injection capillary pressure (MICP) method. This analysis is the progressive intrusion of mercury into a porous structure under stringently controlled pressure. Since mercury does not wet most substances and does not spontaneously penetrate pores by capillary action, it must be forced into the pores by the application of external pressure. The required equilibrated pressure is inversely proportional to the siz...