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Access status: Open Access ,
Wyznaczanie przepuszczalności skał na podstawie pomiarów porozymetrycznych i magnetycznego rezonansu jądrowego
(Wydawnictwa AGH, 2009) Jarzyna, Jadwiga A.; Puskarczyk, Edyta
Permeability, the most important reservoir parameter can be directly measured only on rock samples. It can be also determined on the basis of various statistical relationships between petrophysical parameters. We tested usefulness of Swanson parameter from the mercury porosimetry and relaxation time T2 from the NMR to find adequate formulas to improve permeability determination. We used the Devonian carbonates and Carboniferous mudstones and the Rotliegend sandstones.
Access status: Open Access ,
Pomiary MRJ oraz badania porozymetryczne na wybranych próbkach skał z Karpat Zachodnich
(Wydawnictwa AGH, 2007) Jarzyna, Jadwiga A.; Puskarczyk, Edyta; Wójcik, Aleksander; Semyrka, Roman
Measurements of the $T_2$ relaxation time were done on selected rock samples using the effect of the nuclear magnetic relaxation for protons in hydrogen atoms. Mercury porosimeter measurements were also performed to obtain cumulative curves of effective porosity and specific pore surface as well as distributions of pore geometry and specific pore surface. Qualitative analysis of results of measurements was performed with both methods on samples of Carboniferous and Devonian rocks in order to find corresponding anomalies. Next, the results of both methods were correlated to scale the $T_2$ measurements in values of pore diameters and fracture widths, $D$. The correlation equations for $T_2$ and $D$ were calculated for the full data set and for the Upper Devonian limestone data. The result equations were tested for the extreme values of diameter in the mercury porosimeter range.
Access status: Open Access ,
Structure recognition and fluid flow potential based on well data and geological field investigations. A case study of the Istebna Beds, Silesian Unit, Carpathians
(Wydawnictwa AGH, 2024) Krakowska-Madejska, Paulina I.; Puskarczyk, Edyta; Starzec, Krzysztof; Jarzyna, Jadwiga A.; Stadtmüller, Marek
Wydział Geologii, Geofizyki i Ochrony Środowiska
Facies were recognized based on the results of well logging data, using these measurements and conducting a comprehensive interpretation. This was done by first using shaliness (volume of shale) as the main parameter for a geological profile division into petrophysical lithofacies before secondly calculating Flow Zone Index (FZI), utilizing porosity and permeability estimated from well logging interpretation and defining Rock Types on the basis of FZI frequency distributions. FZIs were also determined according to porosity and permeability from laboratory measurements whenever the results were available. Descriptions of cores and cuttings together with the results of geological field investigations were the basis for lithofacies determination. Maps of average porosity, permeability, and FZI values were constructed for the study area. Three types of facies data and maps of reservoir parameters were used to support the recognition of geological structures and their assessment of potential for fluid movement in the rock formation. The facies analyses were performed on the example of the Istebna Beds of the Silesian Unit in the Carpathians.
Access status: Open Access ,
The measurement and interpretation methodology of resistivity logs affected by the Groningen effect - a Polish case study
(Wydawnictwa AGH, 2020) Baudzis, Stanisław; Jarzyna, Jadwiga A.; Puskarczyk, Edyta
True formation resistivity Rt measurement is one of the fundamental logs in the calculation of hydrocarbon resources. That is why it is very important to have the most reliable resistivity data possible. In this paper, the various outcomes obtained by Polish well log analysts and engineers for the proper determination of hydrocarbon saturation in the Main Dolomite deposits in the Polish Lowland are presented. The long history of efforts directed to make proper exploitation decisions in wells where the Groningen effect has been observed is illustrated, starting with the standard measurement and interpretational approach, through the modified construction of a reference electrode in a Laterolog device and ending with an examination of HRLA (High Resolution Laterolog Array) or Array Compensated Resistivity Tool) ACRt results. The processing of resistivity logs with the special Poprawki software is included.

Puskarczyk, Edyta

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