Lithological, grain-size and architectural trends in the holocene Rhine-Meuse delta-insights from 3D voxel models
conference paper
TNO Geological Survey of the Netherlands systematically produces 3D voxel models for answering subsurface related questions. The unique combination of vast amounts of borehole data and the voxelbased approach makes the models valuable new sources for exploring the Quaternary fluvial record. The latest generation of 3D voxel models (GeoTOP) schematises the shallow subsurface of the Netherlands in millions of voxels each measuring 100 by 100 by 0.5 m up to a depth of 50 m below sea level. The GeoTOP model was used to perform a 3D spatial trend analysis on channel belt lithology, sand grain-size and architectural characteristics in the Holocene Rhine-Meuse delta. An analysis of the coarse-sand and fine-sand fractions shows clear spatial trends that relate to downstream changes in gradient, reworking of older sediments and tidal influence. Channel deposit proportions show an almost linear downstream decrease with an average value of about 0.5% per km. Our data can act as an important constraint for hydrocarbon reservoir modelling where this type of information is often only sparsely available.
Topics
TNO Identifier
517647
ISBN
9781632666949
Publisher
EAGE Publishing BV
Source title
76th European Association of Geoscientists and Engineers Conference and Exhibition 2014: Experience the Energy - Incorporating SPE EUROPEC 2014, 16 June 2014 through 19 June 2014, Amsterdam
Pages
832-836
Files
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