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    Wyświetlanie 1-4 z 4
    Tytuł:
    Quantitative studies of the calcareous nannoplankton of Sarmatian deposits : case studies in the Sieniawa–Rudka area (Outer Carpathian Foredeep, Poland)
    Autorzy:
    Lelek, D.
    Oszczypko-Clowes, M.
    Oszczypko, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/191751.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    calcareous nannoplankton
    biostratigraphy
    palaeoenvironment
    multivariate analysis
    Sarmatian
    Polish Carpathian Foredeep
    Opis:
    The aim of this study was the qualitative and quantitative analysis of the calcareous nannofossil assemblages of the Machów Formation, belonging to the supra-evaporitic complex of the Polish Carpathian Foredeep Basin (PCFB). The work was concentrated in the eastern part of the PCFB, in the Sieniawa–Rudka area (Ryszkowa Wola Horst). Samples were collected from the Rudka-13 and Wylewa-1 boreholes. On the basis of calcareous nannoplankton, these deposits were assigned to the upper part of the NN6 Zone combined with the NN7 Zone, which corresponds to the Sarmatian s.s. of the Central Paratethys (upper Serravallian of the Mediterranean scale). Conclusive determination of the biozone NN7 was problematic, owing to the absence of the rare zonal marker species Discoaster kugleri. The typical association of the undivided NN6–NN7 Zone was of low species diversity and usually dominated by Coccolithus pelagicus, Cyclicargolithus floridanus and Reticulofenestra pseudoumbilica (> 7 µm). On the basis of the relative abundance of species, a significant amount of redeposition was deduced. The reworked nannofossils were mostly Eocene in age. The Oligocene, Early Miocene and Late Cretaceous species occurred much less frequently. The dominance of Eocene forms indicates the Carpathians as the main supply area. The Late Cretaceous taxa may have originated from the Senonian marly deposits of the Miechów Trough in the north. Statistical treatment of the quantitative data was performed using multivariate cluster analysis and Nonmetrical Multidimensional Scaling (nMDS). The composition of the calcareous nannofossil assemblages, together with the high percentage of allochthonous taxa, indicate a shallow, coastal environment with a high supply of nutrients.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2016, 86, 1; 29-57
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Origin of liquid hydrocarbons accumulated in the Miocene strata of the Polish Carpathian Foredeep and its Palaeozoic–Mesozoic basement
    Autorzy:
    Więcław, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/191540.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    oil origin
    biomarkers
    stable carbon isotopes
    oil-oil correlation
    Palaeozoic–Mesozoic basement
    Polish Carpathian Foredeep
    Opis:
    Petroleum geochemical data of 34 oils and condensates accumulated in the Carpathian Foredeep and its Mesozoic and Palaeozoic basement were used to assess their origin and genetic type. The analysed liquid hydrocarbons are characterized by variable densities and sulphur contents. No relationship between these parameters and the reservoir rock age has been found. Secondary processes of evaporative fractionation and biodegradation are evidenced for some oils. These processes proceeded most intensively on the oil from Góra Ropczycka-1K well. The oils from Opaka-1, Lubaczów-157 and Góra Ropczycka-1K wells were generated from organic matter deposited in the Upper Jurassic carbonates. The oil from the inflow in Załazie-2 well originated from the Cambrian strata, but also contains biomarkers characteristic of Miocene strata. The next family, genetically connected with the Silurian and Ordovician source rocks, consists of oils accumulated in the Lower Carboniferous carbonates in Nosówka deposit and in the Upper Jurassic in the inflow into Łękawica-1 well. The condensates collected from the Miocene (Łękawica-1, Pilzno-37, Tarnów-39 and -45 wells) and Upper Jurassic strata (Łąkta-27 and Tarnów-5 wells) were generated by organic matter dispersed in the Middle Jurassic or Lower Carboniferous clastic facies. The remaining oils, from Grobla-Pławowice, Wierzchosławice, Jastrząbka Stara, Partynia-Podborze, Dąbrowa Tarnowska, Brzezówka and Zagorzyce deposits, and the inflows into Tarnów-47 and Pilzno-12 wells were generated from kerogen enriched in organic sulphur usually dispersed in carbonate rocks. Such a type of sediments occurs in the Devonian and Lower Carboniferous strata. Also, these strata as well as the underlying Silurian rocks have sufficient maturity for generation of the discussed oils. The oleanane in the discussed oils most probably originates from kerogen of the Upper Cretaceous or Miocene strata, through which these oils migrated and eluted this biomarker.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 443-458
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Habitat and hydrocarbon potential of the Palaeozoic source rocks in the Kraków–Rzeszów area (SE Poland)
    Autorzy:
    Więcław, D.
    Kotarba, M. J.
    Kowalski, A.
    Kosakowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/191373.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    source rock
    hydrocarbon potential
    Rock-Eval pyrolysis
    biomarkers
    stable carbon isotopes
    Palaeozoic basement
    Małopolska Block
    Polish Carpathian Foredeep
    Opis:
    The quantity, genetic type and maturity of organic matter dispersed in Ordovician, Silurian, Devonian and Lower Carboniferous strata in the basement of the Carpathian Foredeep between Kraków and Rzeszów were determined based on the results of organic geochemical analyses of 600 rock samples collected from 44 wells. The best source rocks were found in the Silurian strata where the total organic carbon (TOC) content is up to 6.6 wt% and the median value equals ca. 1.5 wt%. The median values of the initial organic carbon contents in individual wells vary from 1.2 to 3.5 wt%. The Ordovician, Lower Devonian and clastic facies of the Lower Carboniferous strata can be considered as an additional source of hydrocarbons with the median TOC values of 0.27, 0.56 and 0.53 wt%, respectively. The Middle and Upper Devonian strata as well as the carbonate facies of the Lower Carboniferous strata have much lower quantities of organic carbon, although in these strata levels with elevated TOC contents were observed. In the Lower Palaeozoic and Lower Devonian strata, the oil-prone, low-sulphur Type II kerogen is present, whereas in the younger divisions presence of the gas-prone Type III kerogen is visible. In the Lower Carboniferous clastics gas-prone kerogen dominates. The Silurian and clastic facies of the Lower Carboniferous strata have been deposited in the normal marine conditions, whereas the Ordovician, Devonian and carbonate facies of the Lower Carboniferous strata usually experienced reducing conditions. The source rocks are mostly at the initial and middle phase of the low-temperature thermogenic processes. Locally, immature (in the Lower Carboniferous carbonates in the vicinity of Łąkta gas-condensate field) or late-mature (in the Middle and Upper Devonian strata in the area of Grobla–Pławowice oil field) source rocks were observed.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 375-394
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Exploration and exploitation of oil and gas fields in Poland: a historical outline
    Autorzy:
    Karnkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2066017.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    historia przemysłu naftowego
    pola naftowe i gazowe
    Karpaty
    zapadlisko przedkarpackie
    nizina polska
    history of petroleum industry
    oil and gas fields in Poland
    Carpathians
    Carpathian Foredeep
    Polish Lowland
    Opis:
    Petroleum industry began in Galicia region, the former part of Poland which was in 1772-1918 a province of the Austro-Hungarian Empire. The birth of this industry was connected with petroleum distillation made by two pharmacists: Ignacy Łukasiewicz and Jan Zeh, who persistently were working to get a liquid without both light and heavy factions of hydrocarbons, i.e. a liquid paraffin of oil. This aim was reached in spring of 1853. That time also a kerosene lamp was constructed by Adam Bratkowski under direction of I. Łukasiewicz. The set of these lamps was used in the Lviv municipal hospital during the serious surgical operation on 31 July 1853. This date was accepted as the beginning of the world oil industry. Next year I. Lukasiewicz established the oil mine in the Bóbrka village near Krosno. Oil wells then were frequently the open ones dug out to the depth of 60 m and from them oil was extracted with wooden buckets by usage of gin. When petroleum deliveries were assured I. Łukasiewicz founded in 1856 the first petroleum distillery in Ulaszowice near Jasło, the second one in 1858 in Kleczany, and the third one in Polanka near Krosno in 1861. In 1890s in the Carpathians the new oil deposits were discovered in the Gorlice-Jasło-Sanok region. In 1888 the Bergheim Mac Garvey Company found the new oil fields in Weglówka near Krosno and the Galician Oil Mining Company discovered oil-rich deposits in Potok, Turaszówka, Iwonicz, Stara Wieś, Rudawka Rymanowska and Wankowa. Discoveries were also along the Carpathians thrust front where exists the zone of deep-seated folds covered by the Miocene deposits. Oil fields are here located at depth of 800-2000 m. In the Borislav vicinity a few very efficient oil fields were documented in 1896. In 1908 the highly productive "Oil City" well with oil production 2500 t/d was drilled. Exploitation in this region of the Carpathians in 1909 was 2x10exp.6 t, i.e. 5%of the world oil production and Galicia was the third producer in the world. During 150 years of exploration, in this part of Polish Carpathians, 67 oil and 17 gas fields were discovered. In the Carpathian Foredeep 50 gas fields and 10 oil fields were documented. The biggest success was the Jaksmanice-Przemyśl gas field with 75x 10exp.9 m3 of resources. In the Polish Lowland in 1946, just after the Second World War, basing on gravimetric and magnetic data, the first drilling was located on the Kłodawa structure and the Zechstein salts at depth of 300 m were found. Later this drill was a base for foundation of Kłodawa salt mine. In 1961 in the Fore-Sudetic Monocline the first oil field Rybaki was discovered in the Zechstein Main Dolomite formation, and three years later, in 1964, the first gas field discovery - Bogdaj-Uciechów was found within the Rotliegend sandstone and the Zechstein Limestone unit. Until now a dozen of oil and gas fields were documented not only in the Permian formations but also in the Devonian and the Carboniferous deposits in the Lublin Petroleum Province and in the Cambrian sandstones in the Gdansk Petroleum Province. Exploration works, initiated after the Second World War, both in the Carpathians as well as in the Carpathian Foreland and the Polish Lowland give premises of new oil and gas filed discoveries there also in the future.
    Źródło:
    Przegląd Geologiczny; 2007, 55, 12/1; 1049-1059
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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