Qualitative–Quantitative Analyses of the Influence of Depth and Lithological Composition on Lower Pontian Sandstone Porosity in the Central Part of Bjelovar Sag …
Sažetak Results of several tests (porosity–depth graphic relation, t-test, F-test, Pearson's R),
were used to analyse and interpret the regularity in porosity values of Lower Pontian oil-
bearing sandstones from the central part of Bjelovar sag. Data came from 7 cored intervals
within 5 wells in the Pepelana member and from 6 cored intervals (in 4 wells) in the Poljana
member. The expected porosity decrease with increasing depth was checked against
lithological variations.
were used to analyse and interpret the regularity in porosity values of Lower Pontian oil-
bearing sandstones from the central part of Bjelovar sag. Data came from 7 cored intervals
within 5 wells in the Pepelana member and from 6 cored intervals (in 4 wells) in the Poljana
member. The expected porosity decrease with increasing depth was checked against
lithological variations.
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