> Shallow-marine Sandstone Reservoirs, Depositional Environments, Stratigraphic Characteristics and Facies Model: A Review

摘要

A significant percentage of the world?s hydrocarbon reserves are found in shallow-marine sandstone deposits. Understanding the internal characteristics, distribution, geometry and lateral extent of these sandstones in the subsurface is therefore, an essential part of successful exploration and production strategy. The aim of this study was to document a review on the understanding of shallow-marine sandstone reservoirs, depositional environments, stratigraphic characteristics and facies modeling which is quit challenging because of generic hierarchy of different scale and sets of heterogeneities. This review was based on seven different types of clastic coastal depositional environments: Deltas, tide-dominated estuaries, wave-dominated estuaries, barrier-islands and lagoons, strand plains and tidal flats. This study documented a broad examination of these depositional environments and their corresponding stratigraphic and facies models which lead to a better understanding of their impact on reservoir heterogeneities within these settings. The review supports the hypotheses of previous researchers that wave, tide and river power exercise the primary control over the gross geomorphology and facies distribution patterns in clastic coastal depositional environments which can be applicable to any region on earth where clastic coastal depositional environments may be identified from stratigraphic characteristics.