Gas Chromatography-Mass Spectrometry (GC-MS) Biomarker Database Table

The Gas Chromatography-Mass Spectrometry (GC-MS) biomarker database table contains publicly available results from Geoscience Australia's organic geochemistry (ORGCHEM) schema and supporting oracle databases for the molecular (biomarker) compositions of source rock extracts and petroleum liquids (e.g., condensate, crude oil, bitumen) sampled from boreholes and field sites. These analyses are undertaken by various laboratories in service and exploration companies, Australian government institutions and universities using either gas chromatography-mass spectrometry (GC-MS) or gas chromatography-mass spectrometry-mass spectrometry (GC-MS-MS). Data includes the borehole or field site location, sample depth, shows and tests, stratigraphy, analytical methods, other relevant metadata, and the molecular composition of aliphatic hydrocarbons, aromatic hydrocarbons and heterocyclic compounds, which contain either nitrogen, oxygen or sulfur.These data provide information about the molecular composition of the source rock and its generated petroleum, enabling the determination of the type of organic matter and depositional environment of the source rock and its thermal maturity. Interpretation of these data enable the determination of oil-source and oil-oil correlations, migration pathways, and any secondary alteration of the generated fluids. This information is useful for mapping total petroleum systems, and the assessment of sediment-hosted resources. Some data are generated in Geoscience Australia’s laboratory and released in Geoscience Australia records. Data are also collated from destructive analysis reports (DARs), well completion reports (WCRs), and literature. The biomarker data for crude oils and source rocks are delivered in the Petroleum and Rock Composition – Biomarker web services on the Geoscience Australia Data Discovery Portal at https://portal.ga.gov.au which will be periodically updated.

气相色谱-质谱（GC-MS）生物标志物数据库表格收录了澳大利亚地质调查局（Geoscience Australia）有机地球化学（ORGCHEM）架构及其配套Oracle数据库中公开的分析结果，这些数据对应从钻孔及野外场地采集的烃源岩提取物与石油流体（如凝析油、原油、沥青）的分子（生物标志物）组成。这些分析由多家服务与勘探企业、澳大利亚政府机构及高校的实验室完成，测试手段涵盖气相色谱-质谱（GC-MS）及气相色谱-串联质谱（GC-MS-MS）。数据集内容包含钻孔或野外场地位置、样品埋深、油气显示与测试数据、地层信息、分析方法及其他相关元数据，同时涵盖脂肪烃、芳香烃及含氮、氧、硫杂环化合物的分子组成。该数据集可提供烃源岩及其生成石油的分子组成信息，用于确定烃源岩的有机质类型、沉积环境及热成熟度。对该数据集的解析可用于开展油源对比、油-油对比，确定油气运移路径以及生成流体的次生蚀变特征。此类信息可用于绘制全油气系统图件，以及评价沉积岩容载的油气资源。部分数据由澳大利亚地质调查局实验室生成，并收录于该局官方记录中。数据集还整合了破坏性分析报告（DARs）、完井报告（WCRs）及公开文献中的相关数据。原油及烃源岩的生物标志物数据可通过澳大利亚地质调查局数据发现门户（https://portal.ga.gov.au）上的“石油与岩石组分——生物标志物”网络服务获取，该服务将定期更新。