DBPapers
DOI: 10.5593/SGEM2016/HB14/S01.017

HYDROCARBON GENERATION IN THE UPPER CAMBRIAN – LOWER SILURIAN SOURCE ROCKS OF THE BALTIC BASIN (POLAND): IMPLICATIONS FOR SHALE GAS EXPLORATION

D. Botor
Friday 11 November 2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, SGEM Vienna GREEN Extended Scientific Sessions, www.sgemviennagreen.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-80-3 / ISSN 1314-2704, 2 - 5 November, 2016, Book 1 Vol. 4, 127-134pp, DOI: 10.5593/SGEM2016/HB14/S01.017

ABSTRACT

One-dimensional maturity modelling of the Upper Cambrian – Lower Silurian source rocks in Polish part of the Baltic basin (onshore) revealed that hydrocarbon generation and expulsion developed during Late Silurian and/or Devonian burial, depending on location within the basin. Earlier hydrocarbon generation started further to the west. The Variscan uplift ended these processes during the Carboniferous times. Generated hydrocarbons were expelled rapidly from source rocks in the western part of the study area, therefore liquid and vapor saturation is relatively low in source rocks. During Mesozoic burial, hydrocarbon generation processes did not develop again. This finding is not optimistic for shale gas exploration; however it does not exclude further possibilities of finding conventional oil and gas deposits as well as tight gas deposits. The possible overpressure zone development within Lower Paleozoic section particularly within the Cambrian sandstones allows consideration of this section as next possible target for tight gas exploration in Poland.

Keywords: maturity modeling, shale gas, Baltic basin, Lower Paleozoic

PAPER DOI: 10.5593/SGEM2016/HB14/S01.017, HYDROCARBON GENERATION IN THE UPPER CAMBRIAN – LOWER SILURIAN SOURCE ROCKS OF THE BALTIC BASIN (POLAND): IMPLICATIONS FOR SHALE GAS EXPLORATION

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