The Identification and Reservoir Architecture Characterization of Wandering Braided River in Nanpu 1-29 Area, Bohai Bay Basin

Figure 4

Sedimentary tectonic features of Nanpu 1-29 Area. (a) Wavy bedding, the bedding units that are symmetrical or asymmetrical wavy. (b) Ripple lamination fine sandstones, whose composition, color, and grain size change along the direction of sediment accumulation. (c) Veined carbonaceous fine sandstone, the sandstone is relatively sufficient, and there are abundant carbonaceous strips. (d) Massive bedding fine conglomerate, developed at the bottom of a river with a scour surface visible. (e) Sandy mass, which belongs to abnormal predrainage deposition, with deformation structure visible. (f) Massive bedded coarse sandstone, formed by rapid fluvial deposition.

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