Abstract
The objective of this study is to demonstrate the presence of methane in the shallow sediments and its origin in the southern of the Baltic Sea area. Structural and stratigraphic interpretation with support of seismic attributes was carried out to show the potential of fluid migration pathways from the Upper Triassic formation reservoirs to shallow sediments below seabed and helps in explanation of how this natural gas escapes to the sea bottom. Hydro-acoustic data illustrated the gas chimneys’ anomalies and corresponding free gas accumulation in Pleistocene to Quaternary successions. We combine seismic, hydro-acoustic data and information on petroleum system from previous studies to explain signatures of free gas and its migration from lower reservoirs to shallow sediments.
Published Version
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