The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems
© 2017 Elsevier Ltd The distributions of benzo[b]naphtho[d] furans (BNFs) in source rocks and fluids (crude oil and condensate) are shown to be useful indicators of facies type in fluvial-deltaic systems from the Dampier sub-Basin, North West Shelf of Australia. The stratigraphy in the Dampier sub-B...
| Main Authors: | , |
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| Format: | Journal Article |
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Pergamon
2017
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| Online Access: | http://purl.org/au-research/grants/arc/LP150100341 http://hdl.handle.net/20.500.11937/59186 |
| _version_ | 1848760408524980224 |
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| author | Cesar, J. Grice, Kliti |
| author_facet | Cesar, J. Grice, Kliti |
| author_sort | Cesar, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 Elsevier Ltd The distributions of benzo[b]naphtho[d] furans (BNFs) in source rocks and fluids (crude oil and condensate) are shown to be useful indicators of facies type in fluvial-deltaic systems from the Dampier sub-Basin, North West Shelf of Australia. The stratigraphy in the Dampier sub-Basin represents a challenging petroleum system where the organic matter is very similar in most of the Triassic-Jurassic sequences. These sections consist of a fluvial-deltaic system with increasing marine influence towards the end of the Jurassic period. Potential applications of BNFs for source rock characterisation as well as fluid – source rock correlations are reported for the first time. The formation of [1,2]BNF seems to be influenced by clay catalysis, and the ratio [2,1] /[1,2]BNF can be used to describe lithofacies. This ratio is much lower in sediments from fluvial-deltaic systems compared to clay-depleted sediments from marine environments (e.g. carbonate sequences). For this study, the Triassic source rocks show ratios of 0.9–1.5 with 25% w/w of clay content in the rock whereas the ratios for the Middle Jurassic source rocks are around 1.6–2.1 with 14% w/w of clay content. The BNF ratio is lowest in the Late Jurassic samples (0.8) with 28% w/w of clay minerals. The ternary plot of [2,1] -[1,2]-[2,3] BNFs could be applied to fluid–fluid and fluid-source rock correlations. However, further work needs to be done on the factors controlling the abundance of the [2,3]BNF which is more abundant in source rocks compared to the fluids generated and expelled from these. |
| first_indexed | 2025-11-14T10:15:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-59186 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:15:18Z |
| publishDate | 2017 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-591862023-02-02T03:24:11Z The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems Cesar, J. Grice, Kliti © 2017 Elsevier Ltd The distributions of benzo[b]naphtho[d] furans (BNFs) in source rocks and fluids (crude oil and condensate) are shown to be useful indicators of facies type in fluvial-deltaic systems from the Dampier sub-Basin, North West Shelf of Australia. The stratigraphy in the Dampier sub-Basin represents a challenging petroleum system where the organic matter is very similar in most of the Triassic-Jurassic sequences. These sections consist of a fluvial-deltaic system with increasing marine influence towards the end of the Jurassic period. Potential applications of BNFs for source rock characterisation as well as fluid – source rock correlations are reported for the first time. The formation of [1,2]BNF seems to be influenced by clay catalysis, and the ratio [2,1] /[1,2]BNF can be used to describe lithofacies. This ratio is much lower in sediments from fluvial-deltaic systems compared to clay-depleted sediments from marine environments (e.g. carbonate sequences). For this study, the Triassic source rocks show ratios of 0.9–1.5 with 25% w/w of clay content in the rock whereas the ratios for the Middle Jurassic source rocks are around 1.6–2.1 with 14% w/w of clay content. The BNF ratio is lowest in the Late Jurassic samples (0.8) with 28% w/w of clay minerals. The ternary plot of [2,1] -[1,2]-[2,3] BNFs could be applied to fluid–fluid and fluid-source rock correlations. However, further work needs to be done on the factors controlling the abundance of the [2,3]BNF which is more abundant in source rocks compared to the fluids generated and expelled from these. 2017 Journal Article http://hdl.handle.net/20.500.11937/59186 10.1016/j.orggeochem.2017.08.010 http://purl.org/au-research/grants/arc/LP150100341 Pergamon restricted |
| spellingShingle | Cesar, J. Grice, Kliti The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems |
| title | The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems |
| title_full | The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems |
| title_fullStr | The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems |
| title_full_unstemmed | The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems |
| title_short | The significance of benzo[b]naphtho[d]furans in fluids and source rocks: New indicators of facies type in fluvial-deltaic systems |
| title_sort | significance of benzo[b]naphtho[d]furans in fluids and source rocks: new indicators of facies type in fluvial-deltaic systems |
| url | http://purl.org/au-research/grants/arc/LP150100341 http://hdl.handle.net/20.500.11937/59186 |