1. Plot of lacunarity v. inhomogeneity in spatial positioning of sandbody centroids (cf.
Plot of lacunarity v. inhomogeneity in spatial positioning of sandbody centroids (cf. Fig. 8c) in 10 stochastic model realizations generated using the same input NTG ratio (11%), and sandbody dimensions, geometry and orientation (sensitivity test 1 in Table 2). No pseudo-wells were used to condition the models (e.g. Fig. 7). Each model realization is denoted by a grey bar showing the spatial extent of data, with superimposed black bars showing the length scales of sandbody-centroid clustering or regular spacing. Length scales not represented by black portions of the grey–black bars correspond to the random spacing of sandbody centroids. Input sandbody dimensions are based on measurements from ‘windows’ A1 and C1 (Fig. 5a–f), and sandbody distributions from these ‘windows’ are shown for comparison (grey–green bars). Lacunarity values for the model cross-sections bracket those of the outcrop ‘windows’, but clustering of the sandbody centroids observed in both ‘windows’ is reproduced in only two model cross-sections.
Carlos A. Villamizar et al. Petroleum Geoscience 2015;21:
© 2015 The Author(s)‏