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You searched for +publisher:"University of Adelaide" +contributor:("Amrouch, Khalid"). Showing records 1 – 3 of 3 total matches.

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University of Adelaide

1. Burgin, Hugo Bonython. A Multiscale Approach towards the Characterisation of Upper Crustal Deformation at Passive Continental Margins: A Case Study on the Otway Basin, Australia.

Degree: 2019, University of Adelaide

This thesis presents a multiscale structural analysis of upper crustal deformation at a passive continental margin, using the Jurassic - Quaternary Otway Basin along Australia’s southern margin as a case study. Techniques of structural analyses across the micro (calcite twin, magnetic and porefabric analyses), meso (wellbore and outcrop natural fracture analysis) and macroscales (three-dimensional seismic interpretation) providing an effective means of characterising stress and strain across space and time. The integration of these investigative methods at a passive continental margin for the first time, has assisted in reducing structural uncertainty for basin evolution models, delivering original insights into the evolution of stress within these tectonic environments. The results of this study show magnitudes of maximum differential stress as high as 69MPa during extension and continental breakup, in contrast to magnitudes as low as 13MPa during basin inversion. The influence of high extensional stresses during continental break up, resulting in layer parallel stretching (LPSt), a microstructural strain which may develop in layered rock, characterised by an azimuth of stretching or thinning, orthogonal to the orientation of regional extensional faults. LPSt occurs in the early stages of extension, prior to the development of calcite twins, natural fractures, and faults which occur progressively as the intensity and duration of extension increases. This is evidenced in the Otway Basin, where Late Cretaceous aged NE-SW and N-S oriented LPSt is co-axial with extensional azimuths during that time, derived from the stress inversion of seismic scale faults, calcite twins and natural fractures from the outcrop and wellbore. The neotectonic preservation of LPSt in the Otway Ranges, an uplifted section of Early Cretaceous sediments in the Otway Basin, suggests that early grain-scale extensional strain can be preserved during ensuing phases of inversion at continental margins. As during the process of inversion, stress is primarily released through the reactivation of previously formed extensional fault and detachment systems. A process of deformation that results in low levels of coupling between the basement and cover, an observation that is supported by the low magnitudes of compressional stress (13MPa) calculated during the same period. Additionally, the results of this study have improved our understanding of sub-surface fluid flow in the Otway Basin. Geomechanical modelling demonstrating that low contemporary magnitudes of effective normal stress, acting on NW-SE oriented faults, striking parallel to the orientation of maximum horizontal stress, results in a high risk of fault dilation. This suggests that future efforts of exploration for conventional oil and gas systems within the Otway Basin, are best focused where E-W, N-S and NE-SW striking faults interact with the major NW-SE fabric, or where the influence of basin inversion is most pronounced. A major outcome of this study is a new structural framework for the… Advisors/Committee Members: Amrouch, Khalid (advisor), Holford, Simon (advisor), Australian School of Petroleum (school).

Subjects/Keywords: Geology; structural geology; basin; calcite twin; paleostress

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Burgin, H. B. (2019). A Multiscale Approach towards the Characterisation of Upper Crustal Deformation at Passive Continental Margins: A Case Study on the Otway Basin, Australia. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/120858

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Burgin, Hugo Bonython. “A Multiscale Approach towards the Characterisation of Upper Crustal Deformation at Passive Continental Margins: A Case Study on the Otway Basin, Australia.” 2019. Thesis, University of Adelaide. Accessed December 08, 2019. http://hdl.handle.net/2440/120858.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Burgin, Hugo Bonython. “A Multiscale Approach towards the Characterisation of Upper Crustal Deformation at Passive Continental Margins: A Case Study on the Otway Basin, Australia.” 2019. Web. 08 Dec 2019.

Vancouver:

Burgin HB. A Multiscale Approach towards the Characterisation of Upper Crustal Deformation at Passive Continental Margins: A Case Study on the Otway Basin, Australia. [Internet] [Thesis]. University of Adelaide; 2019. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/2440/120858.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Burgin HB. A Multiscale Approach towards the Characterisation of Upper Crustal Deformation at Passive Continental Margins: A Case Study on the Otway Basin, Australia. [Thesis]. University of Adelaide; 2019. Available from: http://hdl.handle.net/2440/120858

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


University of Adelaide

2. Kulikowski, David. Modern Structural Analysis of Subsurface Provinces: A Case Study on the Cooper and Eromanga Basins, Australia.

Degree: 2017, University of Adelaide

The Cooper‐Eromanga Basin is Australia’s largest onshore hydrocarbon province with significant unconventional hydrocarbon potential; however, due to the lack of outcrop, geological data is not easily measured. To mitigate this issue, an approach that can be used to provide a modern structural analysis of subsurface provinces with limited outcrop is presented in this thesis. A holistic approach integrating many datasets, techniques, methodologies, and software has provided better constraints on the structural geology, geophysics and tectonic evolution of the province. Hydrocarbon exploration in the basin has transitioned to technically challenging plays (pinch‐out traps, low relief structures, basin centred gas, etc.), but these programs have been somewhat hampered by a poor understanding of the structural geology, geophysics and tectonic evolution of the basin, with previous work using low resolution and sparse 2D seismic data that remained in the time‐domain. Apart from this approach, the key deliverable of this project was constraining the orientation and magnitude of six tectonic events (N‐S Alice Springs, SE‐NW Mid‐Permian, NE‐SW Daralingie, E‐W Hunter‐Bowen, E‐W Late Cretaceous, and N‐S Paleogene Events) that have controlled the evolution of the Cooper‐Eromanga Basin. The integration of geophysical data, calcite twin stress inversion analysis and rock mechanics presented a new combination of data to constrain the tectonic evolution of subsurface provinces. These complete paleo‐stress tensors were integrated with six geomechanical models to constrain hydrocarbon migration pathways through time, finding that since the critical moment (90 Ma), NE‐SW striking high angle (60ᵒ) faults were likely facilitating hydrocarbon migration. Under contemporary stresses, the regional SE‐NW strike‐slip faults are most likely to reactivate and complicate hydraulic fracture stimulation treatments. Considering that a detailed structural architecture map was not available in literature, all available 2D seismic lines and 12 3D seismic surveys were interpreted to generate a modern basement fault map and detailed fault models for each seismic survey. Four of these surveys cover major basin ridges and were used to constrain the tectonostratigraphic evolution of the basin. Extensive on‐lapping features were created along major structures during the structural events, particularly within Permian stratigraphy. The timing of structural movement is important; however, for economic production of hydrocarbons, a detailed understanding of the natural fracture network in tight sand reservoirs is fundamental. This led to a study that would map the distribution of >6000 temperature samples, >8000 pressure samples, and natural fracture data from 11 borehole image logs across the basin. Following this, the spatial and temporal distribution of subsurface permeable natural fracture networks was presented for five 3D seismic surveys using seismic curvature analysis and a geomechanical model. This model found that E‐W striking natural fractures are… Advisors/Committee Members: Amrouch, Khalid (advisor), Cooke, Dennis (advisor), Australian School of Petroleum (school).

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Kulikowski, D. (2017). Modern Structural Analysis of Subsurface Provinces: A Case Study on the Cooper and Eromanga Basins, Australia. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/122123

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Kulikowski, David. “Modern Structural Analysis of Subsurface Provinces: A Case Study on the Cooper and Eromanga Basins, Australia.” 2017. Thesis, University of Adelaide. Accessed December 08, 2019. http://hdl.handle.net/2440/122123.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Kulikowski, David. “Modern Structural Analysis of Subsurface Provinces: A Case Study on the Cooper and Eromanga Basins, Australia.” 2017. Web. 08 Dec 2019.

Vancouver:

Kulikowski D. Modern Structural Analysis of Subsurface Provinces: A Case Study on the Cooper and Eromanga Basins, Australia. [Internet] [Thesis]. University of Adelaide; 2017. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/2440/122123.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kulikowski D. Modern Structural Analysis of Subsurface Provinces: A Case Study on the Cooper and Eromanga Basins, Australia. [Thesis]. University of Adelaide; 2017. Available from: http://hdl.handle.net/2440/122123

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. Atashbari, Vahid. Origin of overpressure and pore pressure prediction in carbonate reservoirs of the Abadan Plain Basin.

Degree: 2016, University of Adelaide

This thesis analyses overpressure throughout the Abadan Plain Basin and evaluates pore pressure in this basin using conventional petroleum industry methods, as well as two new proposed pore pressure prediction methods. Overpressures in the Abadan Plain Basin are primarily exist within carbonates, whereas most previously published overpressure analysis has been undertaken in shale-dominated clastic rocks. Overpressure in this basin is encountered in two main zones, primarily the Gachsaran and Gadvan/Fahliyan formations. South-west to north-east oriented thickening and shortening, as result of Arabia-Eurasia collision, has affected the pressure regime within the Gachsaran Formation, but seemed ineffectual to the Gadvan and Fahliyan overpressures. In order to analyse overpressure origins and test conventional pore pressure prediction methods, a discrimination scheme was applied to remove the impact of lithology on the log recordings, resulting in isolating the minor shale interbeds within, and as a representative of, the carbonate sequences. Disequilibrium compaction was identified as the primary origin of overpressure in the Abadan Plain Basin. Eaton’s (1972) pore pressure prediction method was applied on the filtered shale data with an exponent of 1.0 for sonic velocity, 0.1 for resistivity, and 5 for density data. Bowers’ (1995) method was also tested and, while it accurately predicted pore pressure in the Gadvan and Fahliyan formations, it underestimates pore pressure in shallower formations. This thesis also introduces a new ‘compressibility method’ for pore pressure prediction, developed by the author, that uses porosity-compressibility correlations. This new ‘compressibility method’ provided reliable pore pressure prediction results in the studied wells. Alternatively, overpressure as a result of sediment compaction is also estimated using Biot’s (1941) general theory of three-dimensional consolidation. A generalised compaction model was constructed, and the resulting modelled pore pressure provides a reasonable estimate of observed pore pressure. Advisors/Committee Members: Tingay, Mark Robert Paul (advisor), Amrouch, Khalid (advisor), King, Rosalind Clare (advisor), Australian School of Petroleum (school).

Subjects/Keywords: overpressure; pore pressure predicition; carbonate; Abadan Plain; Zagros; compressibility; compaction; vertical stress; shale discrimination

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Atashbari, V. (2016). Origin of overpressure and pore pressure prediction in carbonate reservoirs of the Abadan Plain Basin. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/103689

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Atashbari, Vahid. “Origin of overpressure and pore pressure prediction in carbonate reservoirs of the Abadan Plain Basin.” 2016. Thesis, University of Adelaide. Accessed December 08, 2019. http://hdl.handle.net/2440/103689.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Atashbari, Vahid. “Origin of overpressure and pore pressure prediction in carbonate reservoirs of the Abadan Plain Basin.” 2016. Web. 08 Dec 2019.

Vancouver:

Atashbari V. Origin of overpressure and pore pressure prediction in carbonate reservoirs of the Abadan Plain Basin. [Internet] [Thesis]. University of Adelaide; 2016. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/2440/103689.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Atashbari V. Origin of overpressure and pore pressure prediction in carbonate reservoirs of the Abadan Plain Basin. [Thesis]. University of Adelaide; 2016. Available from: http://hdl.handle.net/2440/103689

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.