Migration and Accumulation of Oil and Natural Gas Generated from Neogene Source Rocks in the Hungarian Part of the Pannonian Basin
The secondary migration pathways of Neogene-sourced hydrocarbons have been determined by analyzing the Neogene stratigraphy, the source horizons and their maturation levels, the seals and carrier beds and the oil and gas geochemistry of the discovered traps containing accumulations. Most of the Neogene-sourced hydrocarbons have been generated from deep basin shales and trapped in basement highs and adjacent Neogene reservoirs, in Neogene stratigraphic traps on the flanks of the basement highs and in delta plain reservoirs. The main pathways for secondary migration of deep basin-sourced hydrocarbons are the basal zone, the prodelta turbidites, and the delta slope and delta plain deposits. This study suggests models by which knowledge of migration can be applied to exploration problems.
KeywordsMethane Migration Hydrocarbon Sandstone Shale
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