Well Logging and Lab Data and Acoustic Instantaneous Attributes to Improve Facies Recognition of Reservoir Rock

Production of hydrocarbons from the Zechstein Main Dolomite in the Polish Lowland is related to dolomite facies. The most important are depositional environments - barrier and carbonate platform. The combination of various properties of different physical origin: petrophysical - porosity and bulk density and geochemical: total organic carbon and logging: uranium content and bulk density and resistivity and elastic P-wave slowness and seismic attributes from acoustic full waveforms: amplitude envelope and instantaneous frequency turned to be an effective tool for the better recognition of reservoir parameters of the Main Dolomite of different facies. The examples of mutual relationships between selected parameters for the data sets from the full depth section of the Main Dolomite in the wells located in the region of Wielkopolska Platform and subsets of the grainstone lithofacies are presented.