Multi-scale Quantitative Diagenesis and Impacts on Heterogeneity of Carbonate Reservoir Rocks by Fadi Henri Nader

Author:Fadi Henri Nader
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

First the field aerial- and ground-based geo-referenced acquisitions (hundreds of geo-tagged photographs) are undertaken, resulting in an outcrop model. Interpretation follows by property painting (e.g. facies), drawing objects (e.g. dolomite fronts), including structural information (e.g. fractures-and bedding strike/dip values). The corresponding geomodels are directly worked out from the outcrop 3D models and further statistical and/or geostatistical computation can be applied to fill in where information is lacking. Finally, reservoir modelling can also be applied and compared to the actual subsurface reservoirs (e.g. facies/stratigraphy, seismic attributes, petrophysical properties).

Lidar scanning with hyperspectral imaging and image analysis (e.g. Fig. 3.20) have proved to provide a successful technique in mapping diagenetic phases of distinct chemical and mineralogical nature at the Pozalagua Quarry (northern Spain; Kurz et al. 2012). This new workflow is certainly going to be further improved and applied in the near future. It will certainly allow constructing robust geo-referenced numerical models of reservoir-analogues.

Fig. 3.20Hyperspctral image analysis and interpretation of the main face of the Pozalagua Quarry (Ranero, NE Spain; from Kurz et al. 2012)

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