Correlation and sequence stratigraphic interpretation was conducted on the upper Lower through upper Middle Devonian sandstones of the Snake Cave Interval succession between the southeast Blantyre and northwestern Neckarboo sub-basins across the central Darling Basin. This article necessitated the definition and use of many sedimentary lithotypes related to different facies associations and depositional environment criteria for the purpose of establishing the sequence stratigraphy to aid hydrocarbon exploration of the studied areas. The data set used a combination of wireline logs, core/cutting data and analysis of the paleo-environments of sedimentary facies from three wells. The sedimentological analysis showed that the Snake Cave Interval section presents three different facies associations, which are visible in both vertical and lateral successions, and are characterised as: meandering and braided fluvial facies associations with minor fluvio-shallow lacustrine complex facies associations. The Snake Cave Interval section in the studied areas is consistently defined by six third-order depositional sequences informally named SCS1, SCS2, SCS3, SCS4, SCS5 and SCS6 in the Nyngynderry-1 and Mount Emu-1 exploration wells, and the Kewell East-1 stratigraphic well. All the stratal patterns in the internal sequence stratigraphic units are asymmetric and marked by lowstand, transgressive and highstand systems tracts separated by sequence boundaries, maximum flooding surfaces and transgression surfaces with unique gamma-ray log response characteristics calibrated by particular lithologic aspects. These are all incorporated within the sequence stratigraphic approach to hydrocarbon reservoir prediction. The stratigraphic architecture of the third-order depositional sequences presented here in our study has implications for the hydrocarbon potential of sandstone reservoirs in the southeastern Darling Basin including the Snake Cave Interval succession targets.

对位于达令盆地中部的布兰太尔东南部和 Neckarboo 子盆地西北部之间的蛇洞间隔层序的上下至上中泥盆统砂岩进行了对比和层序地层解释。本文需要定义和使用与不同相组合和沉积环境标准相关的许多沉积岩型，以建立层序地层以帮助研究区的油气勘探。该数据集结合了电缆测井、岩心/切割数据以及对三口井沉积相古环境的分析。沉积学分析表明，蛇洞区间剖面呈现三种不同的相组合，它们在垂直和横向序列中都可见，其特征是：蜿蜒和辫状河流相组合与较小的河流-浅湖复杂相组合。研究区的蛇洞区间剖面始终由 Nyngynderry-1 和 Mount Emu-1 勘探井以及 Kewell East- 1 地层井。内部层序地层单元中的所有地层模式都是不对称的，以层序边界分隔的低水位、海侵和高水位系统域为标志，最大洪水面和海侵面具有独特的伽马射线测井响应特征，由特定的岩性方面校准。这些都包含在用于油气藏预测的层序地层方法中。我们研究中展示的三级沉积层序的地层结构对达令盆地东南部砂岩储层的油气潜力具有影响，包括蛇洞间隔层序目标。