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The influence of seismic velocity distribution on the depth imaging of the sub-Zechstein horizons in areas affected by salt tectonics: a case study of NW Poland

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Języki publikacji
EN
Abstrakty
EN
Lateral changes in the thickness of strata and petrophysical parameters within the Zechstein succession (salt pillows and domes) can cause many problems in seismic exploration of the aeolian Rotliegend formations, which are prospective for hydrocarbons. An assessment of the influence of halokinesis on the seismic imaging of the sub-Zechstein strata in NW Poland (Obrzycko–Szamotuły area, to the SW of the Mid-Polish Swell) utilised time-to-depth conversion with different, seismic-geological models. Various, seismic velocities were used in models for the Zechstein and the Mesozoic successions, namely velocities, dependent on the thickness of particular rock successions, on their depths, and velocities, determined from seismic inversion. The results show opposite reflection patterns for the seismic section imaged in the time and depth domains. The synclinal arrangement of the strata boundaries in the depth model is represented by convex-upwards reflection events on the seismic section. The pull-up of reflection events, associated with the sub-Zechstein strata, observed on the seismic sections, is mainly a result of both the greater thickness of the Zechstein salt within the salt structures (pillows, diapirs) and the increase in velocity contrast between the salt body and the Mesozoic strata.
Rocznik
Strony
263–--277
Opis fizyczny
Bibliogr. 23 poz., rys., wykr.
Twórcy
autor
  • AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Department of Geophysics, Kraków, Poland
autor
  • AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Department of Geophysics, Kraków, Poland
autor
  • AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Department of Geophysics, Kraków, Poland
autor
  • Polish Academy of Sciences, Institute of Geological Sciences, Warszawa, Poland
Bibliografia
  • 1. Dadlez, R. & Marek, S., 1998. Major faults, salt-and non-salt anticlines. In: Dadlez, R., Marek, S. & Pokorski, J. (eds.), Paleogeographic Atlas of Epicontinental Permian and Mesozoic in Poland (1:2 500 000). Polish Geological Institute, Warszawa.
  • 2. Dadlez, R., Marek, S. & Pokorski, J., 2000. Geological Map of Poland without Cenozoic Deposits (1:1 000 000). Polish Geological Institute, Warszawa.
  • 3. Jarzyna J., Bała M. & Krakowska P., 2010. Dopasowanie rozdzielczości profilowań geofizyki otworowej do rozdzielczości pionowej danych sejsmicznych. In: Górecki W. (ed.), Improvement of the Effeciiveness of Seismic Survey for Prospection and Exploration for Natural Gas Deposits in Rotliegend Formations. Research program: MNiSW WND. P0IG.01.01.02. 00.122/09. Archive Katedra Surowców Energetycznych WG GiOŚ AGH, Kraków. [Unpublished report; in Polish].
  • 4. Jarzyna J., Bała M., Krakowska P. & Wawrzyniak-Guz K., 2012a. Scaling of the well logging data for the veiocity models in seismics. Kwartalnik AGH, Geologia, 37: 400-446. [In Polish, English summary].
  • 5. Jarzyna J., Bała M. & Krakowska P., 2012b. Velocity models for seismics on the basis of well log data. Kwartalnik AGH, Geologia, 37: 447-474. [In Polish, English summary].
  • 6. Kobylarski M., Pietsch K., Marzec P., Frankowicz E. & Tatarata A., 2007. Synthetic seismic as a tool for veryfying geological models of gas reservoirs in the Carpathian Foredeep. 69th EAGE Conference & Exhibition. European Association of Geoscientists and Engineers, London: P245.
  • 7. Kobylarski M., Pietsch K. & Kowalczuk J., 2008. PP and PS modelling as a tool for compressional and shear veiocity model construction. Kwartalnik AGH, Geologia, 34: 285-300. [In Polish, English summary].
  • 8. Krzywiec P., 2004. Triassic evolution of the Kłodawa salt structure: basement-controlled salt tectonics within the Mid-Polish Trough (central Poland). Geological Quarterly, 48: 123-134.
  • 9. Krzywiec P., 2006a. Triassic - Jurassic evolution of the NW (Pomeranian) segment of the Mid-Polish Trough - basement tectonics vs. sedimentary patterns. Geological Quarterly, 51: 139-150.
  • 10. Krzywiec P., 2006b. Structural inversion of the Mid-Polish Trough (NW and central segments) - lateral variations in timing and structural style. Geological Quarterly, 51: 151-168.
  • 11. Krzywiec P., 2009. Geometry and evolution of selected salt structures in the Polish Lowiands in the light of seismic data. Przegląd Geologiczny, 57: 812-818. [In Polish, English abstract].
  • 12. Krzywiec P., 2012. Mesozoic and Cenozoic evolution of salt structures within the Polish Basin - an overview. In: Alsop, G. I., Archer, S. G., Hartley, A. J. Grant, N. T. & Hodgkinson, R. (eds.), Salt Tectonics, Sediments and Prospectivity. Geological Society, London, Special Publication, 363: 381-394.
  • 13. Krzywiec P., Wybraniec S. & Petecki, Z., 2006. Budowa tektoniczna podłoża bruzdy śródpolskiej w oparciu o wyniki analizy danych sejsmiki refleksyjnej oraz grawimetrii i magnetyki. In: Krzywiec, P. & Jarosiński, M. (eds.), Struktura litosfery w centralnej i północnej Polsce - obszar projektu POLONAISE’97. Prace Państwowego Instytutu Geologicznego, 188: 107-130. [In Polish].
  • 14. Kwolek, K., 2000. The age of tectonic movements in the Poznań - Kalisz disiocation zone, Fore-Sudetic Monocline. Przegląd Geologiczny, 48: 804-814. [In Polish, English abstract].
  • 15. Marek, S. & Pajchlowa, M., 1997. Epicontinental Permian and Mesozoic in Poland. Prace Państwowego Instytutu Geologicznego, 153: 452 pp. [In Polish, English abstract].
  • 16. Pharaoh, T. C., Dusar, M., Geluk, M. C., Kockel, F., Krawczyk, C. M., Krzywiec, P., Scheck-Wenderoth, M., Thybo, H., Vejbæk, O. V. & van Wees, J. D., 2010. Tectonic evolution. In: Doornenbal, J. C. & Stevenson, A. G. (eds.), Petroleum Geological Atlas of the Southern Perm ian Basin Area. EAGE Publications b.v., Houten: pp. 25-57.
  • 17. Pietsch, K., Marzec, P., Kobylarski, M., Danek, T., Leśniak, A., Tatarata, A. & Gruszczyk, E., 2007a. Identification of seismic anomalies caused by gas saturation on the basis of theoretical P and PS wavefield - Carpathian Foredeep, SE Poland. Acta Geophysica, 55: 191-205.
  • 18. Pietsch, K., Kobylarski, M. & Urban, A., 2007b. Seismic modelling - a support tool for structural interpretation of seismic data from the area of the Outer Carpatians between Babia Góra and Wadowice. Kwartalnik AGH, Geologia, 33: 183- 196. [In Polish, English summary]
  • 19. Pietsch, K., Marzec, P., Niepsuj, M. & Krzywiec, P., 2010. Wykonanie opracowania dotyczącego oceny zniekształceń zapisu sejsmicznego struktur podsolnych wywołanych przez zróżnicowanie prędkości w ich nadkładzie. In: Górecki, W. (ed.), Improvement of the Effectiveness of Seismic Survey for Prospection and Exploration for Natural Gas Deposits in Rotliegend Formations. Research program: MNiSW WND- POIG. 01.01.02.00.122/09. Archive Katerda Surowców Energetycznych WGGiOS AGH, Kraków. [Unpublished report.; in Polish].
  • 20. Scheck-Wenderoth, M., Krzywiec, P., Zülke, R., Maystrenko, Y. & Frizheim, N., 2008. Permtan to Cretaceous tectontcs. In: McCann, T. (ed.), The Geology of Central Europe, 2, Mesozoic and Cenozoic. Geological Society Publishing House: pp. 999-1030.
  • 21. Wagner, R., 1998. Cechsztyn. In: Dadlez R., Marek S. & Pokorski J. (eds.), Atlas paleogeograficzny epikontynentalnego permu i mezozoiku w Polsce (1:2 500 000). Państwowy Instytut Geologiczny, Warszawa. [In Polish].
  • 22. Wilk, M., 2010. Opracowanie dwuwymiarowych modeli prędkości w rejonie otworu Golce-1. Unpublished report. In: Górecki W. (ed.), Improvement of the Effectiveness of Seismic Survey for Prospection and Exploration for Natural Gas Deposits in Rotliegend Formations. Research program: MNiSW WND. POIG.01.01.02.00.122/09. Archive Katerda Surowców Energetycznych WGGiOS AGH, Kraków. [Unpublished report; in Polish].
  • 23. Ziegler, P.A., 1990. Geological Atlas of Western and Central Europe, 2nd edition. Shell Internationale Petroteum Maatsch- appij B.V. and Geological Society Publishing House, Bath: 239 pp.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-1e22d93d-1af5-4e70-b0ab-13429496fcee
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