A non-seismic data interpretation of gas seepage in the mesohellenic basin in Greece

Abstract

Oil and gas seeps on the Earth’s surface are important in exploration since they potentially indicate the presence of hydrocarbons on the subsurface structure. They are influenced by the geological and tectonic structures related to geochemical and geophysical data. Gas seepage discovered due to water well drilling activities in the study area. The gas seepage is located in the Mesohellenic Basin near the northeast boundary of the Grevena area (Northern Greece). This gas seep and the need for more knowledge on methods that could be used for hydrocarbon exploration, as an alternative to seismic investigations, was the starting point of the study. The objective of the paper is to interpret the geological and tectonic context, depositional environment, gravity, magnetic and geochemical data, based upon available literature and also unpublished data to identify a petroleum system. © 2019 EAGE.