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Anatomy of the Cenozoic Eridanos Delta Hydrocarbon System

In the Southern North Sea, shallow gas is defined as gas that occurs in unconsolidated sediments of Cenozoic age. It mainly resides in shallow marine to continental (deltaic) deposits of the Plio-Pleistocene Southern North Sea (SNS) delta. In seismic data, shallow gas appears as seismic reflections with anomalously high amplitudes, so-called bright spots. Despite the fact that shallow gas forms a challenge for production — it resides in unconsolidated sediment at shallow depth (<1 km) and reservoir pressures are low — several producing fields are located in the Netherlands. This report describes the results of the Joint Industry Project “Shallow Gas 2”, which aims to develop a reliable and effective workflow to de-risk these bright spots (DHI for shallow gas), which are observed in the Upper Cenozoic SNS delta in the Northern offshore