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Reservoir Quality Evolution in Tight Gas Sandstones
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 81st EAGE Conference and Exhibition 2019, Jun 2019, Volume 2019, p.1 - 5
Abstract
Summary
This study shows the possibility of modelling the spatial variability of reservoir quality in tight reservoirs as well as temporal evolution of porosity, permeability and fluid flow. We numerically model porosity and permeability evolution by gradually removing quartz cements. The 3D pore network models are integrated with burial history data and quartz cementation models. Reconstruction of tightening mechanisms is vital for understanding hydrocarbon accumulation history and the assessment of reservoir effectiveness. Our approach has been applied to tight gas sandstone reservoir from an undeveloped Copernicus gas discovery from the Southern North Sea.
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