Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques
The Mannar Basin plays a vital role in petroleum exploration in Sri Lanka, and its Barracuda exploration well was drilled up to 4206 m in depth. The objective of the current study is to identify mineralogy using Fourier-transform infrared (FTIR) and X-ray diffraction (XRD) analyses. The FTIR and XRD...
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| Format: | Article |
| Language: | English |
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University of Ruhuna
2022-12-01
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| Series: | Ruhuna Journal of Science |
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| Online Access: | https://www.rjs.ruh.ac.lk/index.php/rjs/article/view/396/350 |
| _version_ | 1797741135098019840 |
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| author | B. M. Gunathilake D.T. Jayawardana A.S. Ratnayake A.M.N.M. Adikaram |
| author_facet | B. M. Gunathilake D.T. Jayawardana A.S. Ratnayake A.M.N.M. Adikaram |
| author_sort | B. M. Gunathilake |
| collection | DOAJ |
| description | The Mannar Basin plays a vital role in petroleum exploration in Sri Lanka, and its Barracuda exploration well was drilled up to 4206 m in depth. The objective of the current study is to identify mineralogy using Fourier-transform infrared (FTIR) and X-ray diffraction (XRD) analyses. The FTIR and XRD analyses confirm the presence of quartz, feldspar, clay minerals (e.g., kaolinite, montmorillonite), calcite, and hematite in all marlstone and mudstone samples. These sedimentary rocks can be identified as potential petroleum source rocks in the Mannar Basin. Quartz, carbonate, and hematite cementations are directly reduced porosity and permeability, and thus primary migration of hydrocarbons from potential source rocks. Clay minerals act as a seal for hydrocarbon migrations in the Mannar Basin. A variety of dominant clay mineral assemblages allows the reconstruction of several paleoclimatic chronozones in warm/wet and arid climates. In contrast, feldspar dissolution promotes the primary migration of hydrocarbon from potential petroleum source rocks. Consequently, this study concluded that common minerals such as quartz, carbonate, and hematite are associated with the trapping and binding processes of hydrocarbons. |
| first_indexed | 2024-03-12T14:22:30Z |
| format | Article |
| id | doaj.art-83e75e811394400dac9078a93962fd52 |
| institution | Directory Open Access Journal |
| issn | 1800-279X 2536-8400 |
| language | English |
| last_indexed | 2024-03-12T14:22:30Z |
| publishDate | 2022-12-01 |
| publisher | University of Ruhuna |
| record_format | Article |
| series | Ruhuna Journal of Science |
| spelling | doaj.art-83e75e811394400dac9078a93962fd522023-08-18T16:54:10ZengUniversity of RuhunaRuhuna Journal of Science1800-279X2536-84002022-12-011329210910.4038/rjs.v13i2.118Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniquesB. M. Gunathilake0https://orcid.org/0000-0002-1204-4954D.T. Jayawardana 1A.S. Ratnayake 2A.M.N.M. Adikaram 3Department of Forestry and Environmental Science University of Sri Jayewardenepura, Sri LankaDepartment of Forestry and Environmental Science, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri LankaDepartment of Applied Earth Sciences, Faculty of Applied Sciences, Uva Wellassa University, Sri LankaDepartment of Physical Sciences, Faculty of Applied Science, South-Eastern University, Sri LankaThe Mannar Basin plays a vital role in petroleum exploration in Sri Lanka, and its Barracuda exploration well was drilled up to 4206 m in depth. The objective of the current study is to identify mineralogy using Fourier-transform infrared (FTIR) and X-ray diffraction (XRD) analyses. The FTIR and XRD analyses confirm the presence of quartz, feldspar, clay minerals (e.g., kaolinite, montmorillonite), calcite, and hematite in all marlstone and mudstone samples. These sedimentary rocks can be identified as potential petroleum source rocks in the Mannar Basin. Quartz, carbonate, and hematite cementations are directly reduced porosity and permeability, and thus primary migration of hydrocarbons from potential source rocks. Clay minerals act as a seal for hydrocarbon migrations in the Mannar Basin. A variety of dominant clay mineral assemblages allows the reconstruction of several paleoclimatic chronozones in warm/wet and arid climates. In contrast, feldspar dissolution promotes the primary migration of hydrocarbon from potential petroleum source rocks. Consequently, this study concluded that common minerals such as quartz, carbonate, and hematite are associated with the trapping and binding processes of hydrocarbons.https://www.rjs.ruh.ac.lk/index.php/rjs/article/view/396/350cementationclay mineralpetroleum source rockprimary hydrocarbon migration |
| spellingShingle | B. M. Gunathilake D.T. Jayawardana A.S. Ratnayake A.M.N.M. Adikaram Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques Ruhuna Journal of Science cementation clay mineral petroleum source rock primary hydrocarbon migration |
| title | Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques |
| title_full | Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques |
| title_fullStr | Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques |
| title_full_unstemmed | Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques |
| title_short | Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques |
| title_sort | qualitative mineralogical analysis of barracuda exploration well in the offshore mannar basin the indian ocean using ftir and xrd techniques |
| topic | cementation clay mineral petroleum source rock primary hydrocarbon migration |
| url | https://www.rjs.ruh.ac.lk/index.php/rjs/article/view/396/350 |
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