Organic Geochemistry (ORGCHEM) Schema. Australian Source Rock and Fluid Atlas  


Authors / CoAuthors

Edwards, D. | Buckler, T.

Abstract

<b>Organic Geochemistry (ORGCHEM) Schema. Australian Source Rock and Fluid Atlas</b> The databases tables held within Geoscience Australia's Oracle Organic Geochemistry (ORGCHEM) Schema, together with other supporting Oracle databases (e.g., Borehole database (BOREHOLE), Australian Stratigraphic Units Database (ASUD), and the Reservoir, Facies and Shows (RESFACS) database), underpin the Australian Source Rock and Fluid Atlas web services and publications. These products provide information in an Australia-wide geological context on organic geochemistry, organic petrology and stable isotope data related primarily to sedimentary rocks and energy (petroleum and hydrogen) sample-based datasets used for the discovery and evaluation of sediment-hosted resources. The sample data provide the spatial distribution of source rocks and their derived petroleum fluids (natural gas and crude oil) taken from boreholes and field sites in onshore and offshore Australian provinces. Sample depth, stratigraphy, analytical methods, and other relevant metadata are also supplied with the analytical results. Sedimentary rocks that contain organic matter are referred to as source rocks (e.g., organic-rich shale, oil shale and coal) and the organic matter within the rock matrix that is insoluble in organic solvents is named kerogen. The data in the ORGCHEM schema are produced by a wide range of destructive analytical techniques conducted on samples submitted by industry under legislative requirements, as well as on samples collected by research projects undertaken by Geoscience Australia, state and territory geological organisations and scientific institutions including the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and universities. Data entered into the database tables are commonly sourced from both the basic and interpretive volumes of well completion reports (WCR) provided by the petroleum well operator to either the state and territory governments or, for offshore wells, to the Commonwealth Government under the Offshore Petroleum and Greenhouse Gas Storage Act (OPGGSA) 2006 and previous Petroleum (submerged Lands) Act (PSLA) 1967. Data are also sourced from analyses conducted by Geoscience Australia’s laboratory and its predecessor organisations, the Australian Geological Survey Organisation (AGSO) and the Bureau of Mineral Resources (BMR). Other open file data from company announcements and reports, scientific publications and university theses are captured. The ORGCHEM database was created in 1990 by the BMR in response to industry requests for organic geochemistry data, featuring pyrolysis, vitrinite reflectance and carbon isotopic data (Boreham, 1990). Funding from the Australian Petroleum Cooperative Research Centre (1991–2003) enabled the organic geochemical data to be made publicly available at no cost via the petroleum wells web page from 2002 and included BOREHOLE, ORGCHEM and the Reservoir, Facies and Shows (RESFACS) databases. Investment by the Australian Government in Geoscience Australia’s Exploring for the Future (EFTF) program facilitated technological upgrades and established the current web services (Edwards et al., 2020). The extensive scope of the ORGCHEM schema has led to the development of numerous database tables and web services tailored to visualise the various datasets related to sedimentary rocks, in particular source rocks, crude oils and natural gases within the petroleum systems framework. These web services offer pathways to access the wealth of information contained within the ORGCHEM schema. Web services that facilitate the characterisation of source rocks (and kerogen) comprise data generated from programmed pyrolysis (e.g., Hawk, Rock-Eval, Source Rock Analyser), pyrolysis-gas chromatography (Py-GC) and kinetics analyses, and organic petrological studies (e.g., quantitation of maceral groups and organoclasts, vitrinite reflectance measurements) using reflected light microscopy. Collectively, these data are used to establish the occurrence of source rocks and the post-burial thermal history of sedimentary basins to evaluate the potential for hydrocarbon generation. Other web services provide data to characterise source rock extracts (i.e., solvent extracted organic matter), fluid inclusions and petroleum (e.g., natural gas, crude oil, bitumen) through the reporting of their bulk properties (e.g., API gravity, elemental composition) and molecular composition using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Also reported are the stable isotope ratios of carbon, hydrogen, nitrogen, oxygen and sulfur using gas chromatography-isotope ratio mass spectrometry (GC-IRMS) and noble gas isotope abundances using ultimate high-resolution variable multicollection mass spectrometry. The stable isotopes of carbon, oxygen and strontium are also reported for sedimentary rocks containing carbonate either within the mineral matrix or in cements. Interpretation of these data enables the characterisation of petroleum source rocks and identification of their derived petroleum fluids, which comprise two key elements of petroleum systems analysis. Understanding a fluid’s physical properties and molecular composition are prerequisites for field development. The composition of petroleum determines its economic value and hence why the concentration of hydrocarbons (methane, wet gases, light and heavy oil) and hydrogen, helium and argon are important relative to those of nitrogen, carbon dioxide and hydrogen sulfide for gases, and heterocyclic compounds (nitrogen, oxygen or sulfur) found in the asphaltene, resin and polar fractions of crude oils. The web services and tools in the Geoscience Australia Data Discovery Portal (https://portal.ga.gov.au/), and specifically in the Source Rock and Fluid Atlas Persona (https://portal.ga.gov.au/persona/sra), allow the users to search, filter and select data based on various criteria, such as basin, formation, sample type, analysis type, and specific geochemical parameters. The web map services (WMS) and web feature services (WFS) enable the user to download data in a variety of formats (csv, Json, kml and shape file). The Source Rock and Fluid Atlas supports national resource assessments. The focus of the atlas is on the exploration and development of energy resources (i.e., petroleum and hydrogen) and the evaluation of resource commodities (i.e., helium and graphite). Some data held in the ORGCHEM tables are used for enhanced oil recovery and carbon capture, storage and utilisation projects. The objective of the atlas is to empower people to deliver Earth science excellence through data and digital capability. It benefits users who are interested in the exploration and development of Australia's energy resources by: • Providing a comprehensive and reliable source of information on the organic geochemistry of Australian source rocks • Enhancing the understanding of the spatial distribution, quality, and maturity of petroleum source rocks. • Facilitating the mapping of total petroleum and hydrogen systems and the assessment of the petroleum and hydrogen resource potential and prospectivity of Australian basins. • Facilitating the mapping of gases (e.g., methane, helium, carbon dioxide) within the geosphere as part of the transition to clean energy. • Enabling the integration and comparison of data from diverse sources and various acquisition methods, such as geological, geochemical, geophysical and geospatial data. • Providing data for integration into enhanced oil recovery and carbon capture, storage and utilisation projects. • Improving the accessibility and usability of data through user-friendly and interactive web-based interfaces. • Promoting the dissemination and sharing of data among Government, industry and community stakeholders. <b>References</b> Australian Petroleum Cooperative Research Centre (APCRC) 1991-2003. Australian Petroleum CRC (1991 - 2003), viewed 6 May 2024, https://www.eoas.info/bib/ASBS00862.htm and https://www.eoas.info/biogs/A001918b.htm#pub-resources Boreham, C. 1990. ORGCHEM Organic geochemical database. BMR Research Newsletter 13. Record 13:10-10. Geoscience Australia, Canberra. https://pid.geoscience.gov.au/dataset/ga/90326 Edwards, D.S., MacFarlane, S., Grosjean, E., Buckler, T., Boreham, C.J., Henson, P., Cherukoori, R., Tracey-Patte, T., van der Wielen, S.E., Ray, J., Raymond, O. 2020. Australian source rocks, fluids and petroleum systems – a new integrated geoscience data discovery portal for maximising data potential. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/133751. <b>Citation</b> Edwards, D., Buckler, T. 2024. Organic Geochemistry (ORGCHEM) Schema. Australian Source Rock and Fluid Atlas. Geoscience Australia, Canberra. https://pid.geoscience.gov.au/dataset/ga/149422

Product Type

collection

eCat Id

149422

Contact for the resource

  Resource provider

 

  Point of contact

Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

  Point of contact

 

Digital Object Identifier

https://dx.doi.org/10.26186/149422

Keywords

( Project )
  • EFTF – Exploring for the Future
( Project )
  • Australia’s Future Energy Resources
( Project )
  • Basin Systems Branch
( Project )
  • Onshore Energy Systems
( Project )
  • Offshore Energy Systems
  • Organic Geochemistry Database (ORGCHEM)
  • Source Rock and Fluid Atlas
  • Organic geochemistry
  • Stable isotopes
  • Petroleum fluids
  • Natural gas
  • Crude oil
  • Hydrogen
  • Laboratory analyses
  • Organic petrology
  • Helium
  • Hydrocarbons
  • Chemical composition
  • Molecular composition
  • Kinetic composition
  • Biomarkers
  • Source rocks
  • sedimentary basins
  • sediment-hosted resources
  • sediment-hosted energy resources
  • sediment-hosted hydrogen resources
theme.ANZRC Fields of Research.rdf
  • Organic geochemistryIsotope geochemistryGeoscience data visualisationData Management And Data ScienceExploration geochemistry
  • Published_External
  • HVC_144673

Publication Date

2024-08-09T05:33:26

Creation Date

2024-04-15T12:00:00

Security Constraints

Australian Government Security Classification System    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Use - license otherRestrictions

Status

completed

Purpose

Sub-collection level record to enhance the discovery of all databases related to the oracle ORGCHEM schema and the associated publications and datasets.

Maintenance Information

asNeeded

Topic Category

geoscientificInformation

Series Information

Lineage

Geoscience Australia's Organic Geochemistry (ORGCHEM) schema and supporting oracle databases underpin the Australian Source Rock and Fluids Atlas web services and publications which provide information in a geological context on organic geochemistry, organic petrology and stable isotope data related to energy (petroleum and hydrogen) sample-based datasets which are used for the discovery and evaluation of sediment-hosted resources.&nbsp;These data are collated from Geoscience Australia records, destructive analysis reports (DARs), well completion reports (WCRs) and literature, and released in web services through the&nbsp;Geoscience Australia portal at https://portal.ga.gov.au. The web services are periodically updated as data becomes available.

Parent Information

Extents

[-44.00, -9.00, 112.00, 154.00]

Reference System

Spatial Resolution

Service Information

Associations

Association Type - isComposedOf

Soil Gas Database Table.    

eCat Identifier - 149321,

UUID - 0596b877-468e-40e3-b9b9-bcfc0857fdc6

Association Type - isComposedOf

Fluid Inclusion Stratigraphy (FIS) Database    

eCat Identifier - 149322,

UUID - 302fb85c-f296-466a-98f5-bfe7b8630f59

Association Type - isComposedOf

Bulk Oils Database Table    

eCat Identifier - 149384,

UUID - d687d286-fd39-42af-9382-18a28ecb74d6

Association Type - isComposedOf

Bulk Source Rock Database Table.    

eCat Identifier - 149385,

UUID - 7fd712a4-bfb7-4952-bcd5-a880101c161e

Association Type - isComposedOf

Bulk Rock Stable Isotopes Database Table.    

eCat Identifier - 149386,

UUID - db40a54b-3d69-45ce-bfe4-94d20f481e93

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Noble Gas Database Table    

eCat Identifier - 149356,

UUID - a4f9cad4-ed8e-410d-bad0-991dc9fb5054

Association Type - isComposedOf

Pyrolysis-Gas Chromatography Database Table.    

eCat Identifier - 149423,

UUID - c4193297-9626-425b-aec3-423960a26a34

Association Type - isComposedOf

Pyrolysis-Reflectance Tie Database Table.    

eCat Identifier - 149383,

UUID - 2cd50a27-00df-4995-920f-46aaed8862be

Association Type - largerWorkCitation

Australian National Hydrocarbon Geochemistry Data Collection    

eCat Identifier - 144673,

UUID - bb1c63de-be26-4af7-8c26-a5ca3e7344ed

Association Type - isComposedOf

GCMSMS Biomarker Database Table    

eCat Identifier - 149388,

UUID - 0bef7c86-8724-4bc6-ab1a-283fdf80fc90

Association Type - wasInformedBy

Geoscience Australia Borehole Database (BOREHOLE)    

eCat Identifier - 126310,

UUID - 1cdaee5d-5b7b-459e-b11b-f567ed27f28a

Association Type - wasInformedBy

Australian Stratigraphic Units Database    

eCat Identifier - 21884,

UUID - a05f7892-8ca9-7506-e044-00144fdd4fa6

Association Type - wasInformedBy

Collection of hydrocarbon shows data from petroleum wells (known as RESFACS database/Shows)    

eCat Identifier - 146443,

UUID - 591a4b4c-413e-4a33-ad03-dda6b59a857a

Association Type - wasInformedBy

Collection of depositional environment data from petroleum wells (known as RESFACS database/ Depositional environment)    

eCat Identifier - 146444,

UUID - 1689693d-55ec-478a-9967-b76a6e718ec0

Association Type - wasInformedBy

ORGCHEM - Organic geochemical database    

eCat Identifier - 90326,

UUID - 2dab6786-519f-e688-e053-12a3070adab9

Association Type - informed

Exploring for the Future program Showcase 2024 - Day 3 National Resource Potential Assessments theme    

eCat Identifier - 149748,

UUID - 648f6397-82f9-4825-ad24-ecd638f44e3b

Downloads and Links

Link to Geoscience Australia Data Discovery Portal  

Link to Geoscience Australia Data Discovery Portal - Source Rock and Fluid Atlas  

Source Information