Abdullah, Muhammad Aqsha Hasan (2025) Pemodelan Geometri 3d Dan Analisis Fasies Pada Batupasir Eosen Akhir (Formasi Mckee) Di Cekungan Taranaki, Selandia Baru: Implikasi Terhadap Kualitas Reservoir Dan Prediksi Aliran Fluida. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini memanfaatkan model geologi 3D untuk mengevaluasi potensi aliran fluida dan kualitas reservoir dari Formasi McKee di Cekungan Taranaki, Selandia Baru. Studi ini berfokus pada karakterisasi reservoir batupasir Eosen Akhir dan penilaian sifat-sifatnya untuk memprediksi perilaku aliran fluida. Untuk tujuan ini, data sumur seperti data checkshot, top formasi, deviasi sumur, dan ringkasan formasi dari sembilan sumur diintegrasikan dengan data seismik 3D. Model geologi dibangun menggunakan perangkat lunak Petrel, yang juga memungkinkan visualisasi heterogenitas reservoir serta distribusi spasial fasies, porositas total, dan porositas efektif. Analisis fasies mengungkap perbedaan signifikan dalam lingkungan pengendapan, termasuk sistem shoreface (pantai), deltaik, dan dataran pasang surut. Perbedaan ini berdampak pada distribusi sifat-sifat reservoir seperti porositas total dan porositas efektif. Batupasir shoreface berbutir kasar menunjukkan porositas tinggi, baik total maupun efektif, sedangkan endapan deltaik dan dataran pasang surut yang berbutir halus menunjukkan porositas yang lebih rendah. Selain itu, proses diagenetik seperti pemadatan, sementasi, dan pelarutan turut berperan dalam mengubah porositas dan permeabilitas, sehingga menyebabkan heterogenitas reservoir. Faktor-faktor pengendapan dan diagenetik secara signifikan memengaruhi perilaku aliran fluida dengan mengatur konektivitas zona permeabilitas tinggi. Secara keseluruhan, studi ini memberikan penilaian terhadap kualitas reservoir dan dinamika aliran fluida di Formasi McKee, serta menunjukkan bagaimana pengendapan laut dan proses diagenesis memengaruhi distribusi fasies dan performa reservoir, khususnya dalam hal porositas. Temuan ini menyoroti potensi eksplorasi dan produksi di masa depan di Cekungan Taranaki melalui pengelolaan sumber daya dan perolehan hidrokarbon yang lebih optimal.
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This research utilizes 3D geological models to evaluate the fluid flow potential and reservoir quality of the McKee Formation in the Taranaki Basin, New Zealand. The study focuses on characterizing the Late Eocene sandstone reservoir and assessing its properties to predict fluid flow behaviour. For this purpose, well data, including checkshot data, formation tops, well deviation, and formation summaries from nine wells, were integrated with the 3D seismic data. The geological model was constructed using Petrel software, which also facilitated the revelation of reservoir heterogeneity and the spatial distribution of facies, total porosity, and effective porosity. An analysis of the facies revealed significant differences in the depositional environments, including shoreface, deltaic, and tidal flat systems. These differences have implications for the distribution of reservoir properties, such as total porosity and effective porosity. The coarsely grained shoreface sandstones are where high porosity, along with high total and effective porosity, was established, while the finer-grained tidal flat and deltaic deposits exhibit lower porosity, with both total and effective porosity being reduced. Furthermore, diagenetic processes, including compaction, cementation, and dissolution, play a role in modifying porosity and permeability, thus contributing to reservoir heterogeneity. Both depositional and diagenetic factors exert a strong influence on fluid flow behaviour by regulating the connectivity of high-permeability zones. In summary, this study offers an assessment of reservoir quality and fluid flow dynamics in the McKee Formation, illustrating how marine deposition and diagenesis impact the distribution of facies and reservoir performance, particularly in terms of porosity. The findings highlight the potential for future production and exploration in the Taranaki Basin by providing better resource management and hydrocarbon recovery.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Taranaki, geomodeling, petrofisika, batupasir, fasies, aliran fluida, Taranaki, geomodelling, petrophysics, sandstone, facies, fluid flow |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN269 Prospecting--Geophysical methods |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Aqsha Hasan Abdullah |
| Date Deposited: | 07 Aug 2025 09:14 |
| Last Modified: | 07 Aug 2025 09:14 |
| URI: | http://repository.its.ac.id/id/eprint/127862 |
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