Show simple item record

dc.contributor.authorJohnson, Lukman M.
dc.contributor.authorRezaee, Reza
dc.contributor.authorSmith, Gregory C.
dc.contributor.authorMahlstedt, N.
dc.contributor.authorEdwards, D.S.
dc.contributor.authorKadkhodaie, Ali
dc.contributor.authorYu, H.
dc.identifier.citationJohnson, L.M. and Rezaee, R. and Smith, G.C. and Mahlstedt, N. and Edwards, D.S. and Kadkhodaie, A. and Yu, H. 2020. Kinetics of hydrocarbon generation from the marine Ordovician Goldwyer Formation, Canning Basin, Western Australia. International Journal of Coal Geology. 232: ARTN 103623.

Pyrolysis and bulk kinetic studies were used to investigate the hydrocarbon generation potential and source rock organofacies variability of marine organic-rich rocks from the Middle Ordovician (Darriwilian) Goldwyer Formation in the Canning Basin, Western Australia. Rock-Eval pyrolysis results for the analysed immature to mid-mature calcareous mudstones imply that the upper Goldwyer Sequence I contains oil-prone type I kerogen, while the lower Goldwyer Sequence III contains type II/III oil- and gas-prone kerogen. This is supported by pyrolysis gas chromatography (Py-GC) results that show the presence of homogenous organofacies in the Goldwyer Sequence I having aliphatic molecular signatures, possibly due to selective preservation of lipids derived from Gloeocapsomorpha prisca (G. prisca). The heterogeneous organofacies of the Goldwyer Sequence III contain aromatic moieties in similar abundance to the aliphatic compounds. The calcareous claystones of the Goldwyer Sequence I have the capacity to generate low wax paraffinic oil, whereas the Goldwyer Sequence III has potential for paraffinic-naphthenic-aromatic (P-N-A) low wax oils, gas, and condensate. The temperature for hydrocarbon generation for the type I kerogen, assuming a constant geological heating rate of 3 °C/my, is estimated to occur over a narrow interval between 145 °C and 170 °C for the Goldwyer Sequence I samples. Generation from the type II/III kerogen occurs from 100 °C to 160 °C in the Goldwyer Sequence III samples which are significantly less thermally stable than the Goldwyer Sequence I samples. The kinetic results for both sequences were used in standard thermal and burial history plots to evaluate their transformation ratio and hydrocarbon generative potential. This provided basin-specific kinetic inputs for burial history modelling and better constraint on kerogen transformation and hydrocarbon generation on the Broome Platform.

dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectEnergy & Fuels
dc.subjectGeosciences, Multidisciplinary
dc.subjectCanning Basin
dc.subjectGoldwyer Formation
dc.subjectKerogen kinetics
dc.subjectTransformation ratio
dc.subjectActivation energy
dc.subjecthydrocarbon generation
dc.titleKinetics of hydrocarbon generation from the marine Ordovician Goldwyer Formation, Canning Basin, Western Australia
dc.typeJournal Article
dcterms.source.titleInternational Journal of Coal Geology
curtin.departmentWASM: Minerals, Energy and Chemical Engineering
curtin.departmentDepartment of Petroleum Engineering
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidRezaee, Reza [0000-0001-9342-8214]
curtin.contributor.researcheridRezaee, Reza [A-5965-2008]
curtin.identifier.article-numberARTN 103623
curtin.contributor.scopusauthoridRezaee, Reza [39062014600]
curtin.contributor.scopusauthoridKadkhodaie, Ali [56495234600]

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record