Organic Geochemical Data Release for Source Rocks of the Roc 2 Well, Bedout Sub-basin, Australia

The Roebuck Basin on Australia’s offshore north-western margin is the focus of a regional hydrocarbon prospectivity assessment being undertaken by the Offshore Energy Studies section. This offshore program is designed to produce pre-competitive information to assist with the evaluation of the hydrocarbon resource potential of the central North West Shelf and facilitate exploration investment in Australia.

The recent oil and gas discoveries at Phoenix South 1 (2014), Roc 1 (2015-16), Roc 2 (2016), Phoenix South 2 (2016), Phoenix South 3 (2018), Dorado 1 (2018), Dorado 2 (2019) and Dorado 3 (2019) wells in the Bedout Sub-basin demonstrate the presence of a petroleum system in Lower Triassic strata (Thompson, 2020; Thompson et al., 2015 and 2018). The current study aims to better understand this new petroleum system and establish its extent.

As part of this program, a range of organic geochemical analyses were acquired on source rocks from the Roc 2 well with these data released in this report.

澳大利亚西北近海边缘的鲁克利盆地（Roebuck Basin）是近海能源研究部门（Offshore Energy Studies section）正开展区域油气远景评价的核心研究对象。该近海研究项目旨在生成预竞争性信息，以助力西北陆架中部的油气资源潜力评估，并推动澳大利亚境内的油气勘探投资。

近期在贝杜特次盆（Bedout Sub-basin）的Phoenix South 1（2014年）、Roc 1（2015-2016年）、Roc 2（2016年）、Phoenix South 2（2016年）、Phoenix South 3（2018年）、Dorado 1（2018年）、Dorado 2（2019年）及Dorado 3（2019年）等钻井中获得的油气发现，证实下三叠统地层中存在含油气系统（Thompson, 2020; Thompson等，2015及2018）。本研究旨在进一步厘清该新型含油气系统并明确其分布范围。

作为本项目的组成部分，研究团队针对Roc 2井的烃源岩开展了一系列有机地球化学分析，相关数据已在本报告中公开发布。