The high quality sand-body trap is characteristic of a large-scale trap, having furthersome types of reservoir facies and favorable reservoir, which are key factors for hydrocarbon enrichment.
优质的砂岩体圈闭具有圈闭规模大、发育有利的储集相类型和良好储集层的特点，这些是油气富集的关键因素。
There are many scale-different sand-gravel body that developed in downdropped block of Chengnan great fault.
埕南大断层下降盘发育了许多不同规模的砂砾岩体。
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