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@article{Onyenanu:2019:10.1144/petgeo2018-058,
author = {Onyenanu, G and Hampson, GJ and Fitch, P and Jackson, MD},
doi = {10.1144/petgeo2018-058},
journal = {Petroleum Geoscience},
pages = {235--248},
title = {Effects of erosional scours on reservoir properties of heterolithic, distal lower shoreface sandstones},
url = {http://dx.doi.org/10.1144/petgeo2018-058},
volume = {25},
year = {2019}
}
TY - JOUR
AB - Distal intervals of interbedded sandstones and mudstones in shallow-marine, wave-dominated shoreface and deltaic reservoirs may contain significant hydrocarbon resources, but their reservoir properties are difficult to predict. Relatively small-scale (200 × 100 × 20m) three-dimensional object-based reservoir models, conditioned to outcrop analogue data, have been used to investigate the controls on the proportion of sandstone, the proportion of sandstone beds that are connected by sandstone-filled erosional scours and the effective vertical-to-horizontal permeability ratio (kv/kh) of such intervals. The proportion of sandstone is controlled by sandstone-bed and mudstone-interbed thickness, and by parameters that describe the geometry, dimensions and lateral-stacking density of sandstone-filled scours. Sandstone-bed connectivity is controlled by the interplay between the thickness of mudstone interbeds and sandstone-filled erosional scours. Effective kv/kh is controlled by the proportion of sandstone, which represents the effects of variable distributions and dimensions of mudstones produced by scour erosion, provided that scour thickness is greater than mudstone-interbed thickness. These modelling results provide a means of estimating the effective kv/kh at the scale of typical reservoir-model grid cells using values of mudstone-interbed thickness and the proportion of sandstone that can potentially be provided by core data.
AU - Onyenanu,G
AU - Hampson,GJ
AU - Fitch,P
AU - Jackson,MD
DO - 10.1144/petgeo2018-058
EP - 248
PY - 2019///
SN - 1354-0793
SP - 235
TI - Effects of erosional scours on reservoir properties of heterolithic, distal lower shoreface sandstones
T2 - Petroleum Geoscience
UR - http://dx.doi.org/10.1144/petgeo2018-058
UR - https://pubs.geoscienceworld.org/pg/article-lookup?doi=10.1144/petgeo2018-058
UR - http://hdl.handle.net/10044/1/63745
VL - 25
ER -