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Analiza przydatności wybranych złóż gazu ziemnego zapadliska przedkarpackiego do konwersji na PMG

Piesik-Buś W.

Nafta-Gaz

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2016

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R. 72, nr 2

95--101

PL

Głównym celem prac opisanych w niniejszym artykule było przeprowadzenie analizy możliwości wykorzystania wybranych złóż gazowych zapadliska przedkarpackiego do konwersji na PMG. Ocena została wykonana dla złóż Tuligłowy – horyzont VIII i Jarosław – horyzonty C i D. Przydatność struktur złóż gazu ziemnego do konwersji na podziemny magazyn gazu oceniono pod kątem szczelności, strukturalnym, złożowym i ekonomicznym. Powyższe złoża spełniają wszystkie wymagane kryteria. Wstępna analiza geologiczno-złożowa wykazała, że w każdym z nich można wytworzyć podziemny magazyn gazu. Należy pamiętać, że przedstawiona analiza ma charakter szacunkowy, a ewentualna decyzja o konwersji tych złóż na PMG powinna zostać poprzedzona opracowaniem studium wykonalności.

EN

The main aim of this paper was to analyze the possibilities of using selected gas fields Foredeep to convert to UGS. The assessment was made for the submission of Tuligłowy horizon VIII and Jaroslaw horizon C and D. The suitability of natural gas structures to convert to an underground gas storage facility was rated for leaks, structural, and economic reserve sites. These deposits meet all the required criteria. Preliminary geological and reservoir analysis showed that in each of them can be produced an underground gas storage facility. Please note that the analysis is an estimate, and any decision to convert those deposits in the UGS should be preceded by a feasibility study.

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Artesian origin of a cave developed in an isolated horst: a case of Smocza Jama (Kraków Upland, Poland)

Gradziński M., Motyka J., Górny A.

Annales Societatis Geologorum Poloniae

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2009

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Vol. 79, No 2

159-168

EN

The cave of Smocza Jama located in the centre of Kraków is developed in the Wawel Horst built of Upper Jurassic limestone and surrounded by grabens with Miocene clays. The cave is composed of two series: the old one has been known for ages and the new one was discovered when an artificial shaft was mined in 1974. The new series comprises small chambers separated by intervening thin walls while the old series consists of three connected together spatial chambers. The cave abounds in extensively developed solution cavities – cupolas and ceiling pockets. The internal fine-grained deposits, predominantly representing clay fraction are built of illite, mixed layer illite-smectite, kaolinite and iron oxides. They are probably the residuum after dissolution of Jurassic limestone. The cave originated in phreatic condition due to water input from below. The new series represents juvenile stage of cave evolution. The water rose through fissure-rifts located in chamber bottoms, circulated convectionally within particular chambers, finally led to bleaching of intervening walls, and hence to connection of the neighbouring chambers. The evolution of the old series is far more advanced. The rounded solution cavities imply that the cave was formed by water of elevated temperature. The lack of coarse-grained fluvial deposits, Pleistocene mammal remains and Palaeolithic artefacts prove that the cave was isolated since its inception till Holocene time. The cave originated due to artesian circulation, when the Wawel Horst was covered by imper- meable Miocene clays. A foreland basin with carbonate basement, filled with fine-grained molasse-type deposits seems to be particularly favourable for the development of artesian caves.

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Tektoniczne struktury deformacyjne w iłach krakowieckich sarmatu w Wylewie k. Sieniawy (zapadlisko przedkarpackie): świadectwo młodej przesuwczej aktywności podłoża miocenu

Nescieruk P., Wójcik A., Malata A., Aleksandrowski P.

Przegląd Geologiczny

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2007

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Vol. 55, nr 8

690-698

EN

Tectonic deformation structures (folds, strike-slip, reverse and normal faults as well as joints) are reported here from the topmost part of the youngest, clayey sediments of the Carpathian foreland basin (Krakowiec clays, Sarmatian, Miocene), in a clay pit located at a village ofWylewa near Sieniawa. Our structural study has revealed several joint sets, accompanying products of intense folding and faulting, and defining a structural pattern that can be easily interpreted in terms of structures formed in a transpressive regime above strike-slip faults in the basement. The origin of these structures is ascribed to tectonic activity of the NW-SE-trending Ryszkowa Wola horst known to occur directly beneath the Wylewa clay pit, at a depth of c. 500 to 1300 m and to involve the basement and the lower part of theMiocene succession. The structural pattern in question most likely reflects a sinistral strike-slip displacement on sub-vertical boundary faults of the lowermost part of the horst. Undisputable effects of this strike-slip motion have been recently documented by other authors using 3D seismic data. The deformation structures at Wylewa must have resulted from a young, late to post-Sarmatian tectonic activity in the basement of the Carpathian foreland basin, probably reflecting an E-W to ENE-WSW directed regional shortening episode.

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Middle Miocene siliciclastic sequences and architectures (southern east Carpathian „Molasse”, Romania) – depositional significance and tectonic forcing

Popa M., Anastasiu N.

Biuletyn Państwowego Instytutu Geologicznego

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1999

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nr 387

164--166