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Compositional kinetics - Ordovician Goldwyer and Bongabinni formations, Canning Basin, Western Australia  


Authors / CoAuthors

Horsfield, B. | Boreham, C.J. | Edwards, D.S. | di Primo, R. | Tiem, V.

Abstract

Geoscience Australia currently uses two commercial petroleum system modelling software packages, PetroMod https://www.software.slb.com/products/petromod and Zetaware http://www.zetaware.com, to undertake burial and thermal history modelling on wells in Australian sedimentary basins. From the integration of geological (age-based sedimentary packages, uplift and erosional events), petrophysical (porosity, permeability, and thermal conductivity) and thermal (downhole temperature, heat flow, vitrinite reflectance, and Tmax) input data, to name the most significant, a best-fit model of the time-temperature history is generated. Since the transformation of sedimentary organic matter (kerogen) into petroleum (oil and gas) is a chemical reaction, it is governed by chemical kinetics i.e. time and temperature (in the geological setting pressure is of secondary importance). Thus, the use of chemical kinetics associated with a formation-specific, immature potential source rock (where available) from the basin of interest is considered a better practical approach rather than relying on software kinetic defaults, which are generally based on the chemical kinetics determined experimentally on Northern Hemisphere organic matter types. As part of the Australian source rock and fluids atlas project being undertaken by the Energy Systems Group’s Exploring for the Future (EFTF) program, compositional kinetics (1-, 2-, 4- and 14-component (phase) kinetics) were undertaken by GeoS4, Germany. The phase kinetics approach is outlined in Appendix 1. This report provides the compositional kinetics for potential source rocks from the Ordovician Goldwyer (Dapingian–Darriwilian) Formation and the Bongabinni (Sandbian) Formation, Carribuddy Group, Canning Basin, Western Australia.

Product Type

document

eCat Id

145176

Contact for the resource

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

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Digital Object Identifier

http://dx.doi.org/10.11636/Record.2021.034

Keywords

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCESGEOCHEMISTRY
( Theme )
  • Kerogen compositional kinetics
( Place )
  • Canning Basin
( Theme )
  • Goldwyer Formation
( Theme )
  • Bongabinni Formation
( Temporal )
  • Ordovician
  • Published_External

Publication Date

2022-01-14T03:04:31

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - license

Use - license

Status

completed

Purpose

Release of compositional kinetic data for source rocks in the Canning Basin

Maintenance Information

asNeeded

Topic Category

geoscientificInformation economy

Series Information

Record GA RECORD: 2021/034

Lineage

Sample analyses undertaken by Geoscience Australia laboratory, Australia and GeoS4 laboratory, Germany

Parent Information

Extents

[-21.8164, -17.0966, 116.4431, 125.9734]

Reference System

Spatial Resolution

Service Information

Associations

Downloads and Links

Download the Record (pdf) [1.0 MB]  

Download Appendix 2 (xlsx) [82 KB]  

Source Information



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