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Acoustic Full Waveforms as a Bridge between Seismic Data and Laboratory Results in Petrophysical Interpretation

Wawrzyniak-Guz K.

Acta Geophysica

2016

Vol. 64, no. 6

2356--2381

Mutual relationships between geological and geophysical data obtained by using methods of different scale are presented for the Miocene sandy-shaly thin-bedded formation and for the Zechstein carbonate formation. The common basis of laboratory results, well logging and seismic data was a recognition of elastic and reservoir properties of rocks. The common basis of laboratory results, well logging and seismic data were elastic and reservoir properties of rocks. Seismic attributes calculated from acoustic full waveforms were a link between the considered data. Seismic attributes strongly depend on small changes observed in rock formation related to lithology variations, facies changes, structural events and petrophysical properties variability. The observed trends and relationships of high correlation coefficients in the analysed data proved the assumption made at the beginning of research that common physical basis is a platform for data scaling. Proper scaling enables expanding the relationships determined from laboratory and well logging of petrophysical parameters to a seismic scale.

Anizotropia sprężystych właściwości skał

Ciechanowska M., Zalewska J.

Prace Instytutu Nafty i Gazu

2006

nr 137

587-596

Przedstawiono wyniki laboratoryjnych badań sprężystych właściwości skał w zależności od kierunku. Wytypowano 26 rdzeni wiertniczych, reprezentujących 3 podzbiory: utwory piaskowcowo-ilaste, anhydryty oraz czyste piaskowce kwarcowe. Obliczono różnego typu współczynniki będące miarą anizotropowości ośrodka. Przeprowadzono analizę ich zmienności na tle litologii oraz charakterystyk petrofizycznych.

Presented are results of the lab measurements of direction-dependent properties of rocks. Selected were 26 samples which represented three kinds of rocks: silty sandstones, anhydrites and pure quartz sandstones. Provided are several coefficients which define the anizotropy of rocks and relations between values of these coefficients and lithological and petrophysical properties of rocks.