Shell has revealed ‘significantly better’ porosity and permeability properties at its Selene gas prospect in the North Sea, following the analysis of the data from the well drilled in 2024…
Shell has revealed ‘significantly better’ porosity and permeability properties at its Selene gas prospect in the North Sea, following the analysis of the data from the well drilled in 2024, prompting its partner Deltic Energy to raise estimates of recoverable gas reserves by 33%.
According to an update from Deltic Energy, which holds 25% interest in Shell-operated Selene gas discovery in the Southern North Sea, the analysis of core samples from well 48/8b-3Z is now substantially complete.
The well 48/8b-3Z was drilled in summer 2024 with Valaris’ Valaris 123 jack-up rig, with the partners confirming the gas discovery in October 2024.
The subsequent analyses have seen porosity and permeability characteristics of the gas discovery improved over previous assumptions, with the reservoir modelling indicating enhanced production potential from key B-sand interval.
Namely, Shell provided porosity and permeability measurements on 176 core plugs taken from drill core samples over the Leman B-Sand, which is the key producing interval within the much thicker Leman Sandstone package.
The core analysis indicates significantly better porosity and permeability than previously assumed in Deltic’s P50 volumetric estimates and reservoir modelling.
Taking the
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