Significance of compressional tectonic on pore pressure distribution in Perth Basin
The Perth Basin is one of the major tectonic structures along the western continental margin of Australia and was initially formed through the rifting and break-up of the Indian and Australian plates. The severe tectonic movements accompanied and occurred after the break-up are responsible for the m...
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| Format: | Journal Article |
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Elsevier
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/37534 |
| _version_ | 1848755075427598336 |
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| author | Ahmad, A. Rezaee, M. Reza Rasouli, Vamegh |
| author2 | unknown |
| author_facet | unknown Ahmad, A. Rezaee, M. Reza Rasouli, Vamegh |
| author_sort | Ahmad, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The Perth Basin is one of the major tectonic structures along the western continental margin of Australia and was initially formed through the rifting and break-up of the Indian and Australian plates. The severe tectonic movements accompanied and occurred after the break-up are responsible for the most structural elements and for the distribution of pore pressure in the basin. Investigations on the well log data from the Perth Basin have identified shale intervals which are characterised as overpressured in some parts of the basin, whereas similar shale intervals found to be normally pressured in other parts of the basin. The phenomena of overpressure have frequently been reported while drilling the same intervals. Based on this research, sections with overpressure were observed in the majority of the wells in the basal section of the Kockatea shale where there were less tectonic activities have been recorded. Normal pore pressure was observed in shallower wells in the Kockatea shales which were located within uplifted sections that were more tectonically active areas. Based on the results of this research, the pore pressure distribution in the Kockatea Shale varied significantly from one part of the Perth Basin to another as a result of compressive tectonic stress. Compressional tectonic activities either induced fracturing in shallower localities (e.g. Beagle Ridge, Cadda Terrace and the adjacent terraces) or removed part of the Kockatea Shale as a result of faulting resulting in overpressures being released. Regions with less intensity of the tectonic activities showed an increase in pressure gradients as approaching away from the centre of uplift. |
| first_indexed | 2025-11-14T08:50:32Z |
| format | Journal Article |
| id | curtin-20.500.11937-37534 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:50:32Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-375342019-02-19T04:27:23Z Significance of compressional tectonic on pore pressure distribution in Perth Basin Ahmad, A. Rezaee, M. Reza Rasouli, Vamegh unknown Perth Basin pore pressure distribution Gas shael compressional tectonic The Perth Basin is one of the major tectonic structures along the western continental margin of Australia and was initially formed through the rifting and break-up of the Indian and Australian plates. The severe tectonic movements accompanied and occurred after the break-up are responsible for the most structural elements and for the distribution of pore pressure in the basin. Investigations on the well log data from the Perth Basin have identified shale intervals which are characterised as overpressured in some parts of the basin, whereas similar shale intervals found to be normally pressured in other parts of the basin. The phenomena of overpressure have frequently been reported while drilling the same intervals. Based on this research, sections with overpressure were observed in the majority of the wells in the basal section of the Kockatea shale where there were less tectonic activities have been recorded. Normal pore pressure was observed in shallower wells in the Kockatea shales which were located within uplifted sections that were more tectonically active areas. Based on the results of this research, the pore pressure distribution in the Kockatea Shale varied significantly from one part of the Perth Basin to another as a result of compressive tectonic stress. Compressional tectonic activities either induced fracturing in shallower localities (e.g. Beagle Ridge, Cadda Terrace and the adjacent terraces) or removed part of the Kockatea Shale as a result of faulting resulting in overpressures being released. Regions with less intensity of the tectonic activities showed an increase in pressure gradients as approaching away from the centre of uplift. 2014 Journal Article http://hdl.handle.net/20.500.11937/37534 10.1016/j.juogr.2014.01.001 Elsevier fulltext |
| spellingShingle | Perth Basin pore pressure distribution Gas shael compressional tectonic Ahmad, A. Rezaee, M. Reza Rasouli, Vamegh Significance of compressional tectonic on pore pressure distribution in Perth Basin |
| title | Significance of compressional tectonic on pore pressure distribution in Perth Basin |
| title_full | Significance of compressional tectonic on pore pressure distribution in Perth Basin |
| title_fullStr | Significance of compressional tectonic on pore pressure distribution in Perth Basin |
| title_full_unstemmed | Significance of compressional tectonic on pore pressure distribution in Perth Basin |
| title_short | Significance of compressional tectonic on pore pressure distribution in Perth Basin |
| title_sort | significance of compressional tectonic on pore pressure distribution in perth basin |
| topic | Perth Basin pore pressure distribution Gas shael compressional tectonic |
| url | http://hdl.handle.net/20.500.11937/37534 |