Khairunnisa, Lara Bella Khairunnisa (2026) Analisis Karakterisasi rock type Reservoir Berdasarkan Hydraulic Flow Unit (HFU) menggunakan pendekatan rock physics pada Lapangan Poseidon, Cekungan Browse. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Karakterisasi reservoir merupakan tahapan penting dalam evaluasi lapangan migas untuk memahami hubungan antara sifat petrofisika, kualitas aliran fluida, dan karakteristik elastis batuan. Penelitian ini bertujuan untuk mengevaluasi karakteristik reservoir Formasi Plover pada Lapangan Poseidon, Cekungan Browse, melalui integrasi analisis petrofisika, klasifikasi rock type menggunakan metode Hydraulic Flow Unit (HFU), serta analisis rock physics. Data yang digunakan meliputi wireline log, data core, dan laporan petrologi dari tiga sumur, yaitu Poseidon-01, Poseidon-02, dan Torosa-01. Analisis petrofisika dilakukan untuk memperoleh parameter porositas efektif, permeabilitas, volume shale, dan saturasi air. Selanjutnya, klasifikasi rock type dilakukan menggunakan metode HFU berdasarkan nilai Flow Zone Indicator (FZI), sedangkan klasifikasi rock type pada interval yang tidak memiliki data core dilakukan menggunakan metode Self-Organizing Map (SOM). Karakteristik elastis batuan dianalisis melalui hubungan antara porositas efektif dengan kecepatan gelombang P (Vp) dan Young's Modulus. Hasil penelitian menunjukkan bahwa reservoir Formasi Plover berhasil diklasifikasikan menjadi empat rock type (RT-I hingga RT-IV) berdasarkan metode HFU menggunakan nilai FZI, yang masing-masing memiliki karakteristik hidraulik yang berbeda. Peningkatan nilai FZI diikuti oleh peningkatan kualitas reservoir yang ditunjukkan oleh semakin baiknya kemampuan batuan dalam mengalirkan fluida. Analisis rock physics menunjukkan adanya hubungan negatif antara porositas efektif dengan kecepatan gelombang P (Vp) dan Young's Modulus, di mana peningkatan porositas diikuti oleh penurunan kekakuan batuan. Integrasi hasil HFU, analisis petrografi, dan parameter elastis menunjukkan bahwa variasi kualitas reservoir tidak hanya dipengaruhi oleh porositas dan permeabilitas, tetapi juga oleh tekstur batuan, kandungan matriks, sementasi, dan proses diagenesis. Pendekatan yang digunakan mampu memberikan karakterisasi reservoir yang lebih komprehensif melalui keterkaitan antara sifat hidraulik, karakteristik litologi, dan sifat elastis batuan.
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Reservoir characterization is an essential stage in petroleum field evaluation to understand the relationship between petrophysical properties, fluid flow capacity, and the elastic properties of reservoir rocks. This study aims to evaluate the reservoir characteristics of the Plover Formation in the Poseidon Field, Browse Basin, through the integration of petrophysical analysis, rock type classification using the Hydraulic Flow Unit (HFU) method, and rock physics analysis. The data used in this study include wireline logs, core data, and petrological reports from three wells, namely Poseidon-01, Poseidon-02, and Torosa-01. Petrophysical analysis was performed to determine effective porosity, permeability, shale volume, and water saturation. Subsequently, rock type classification was carried out using the HFU method based on the Flow Zone Indicator (FZI), while rock type classification for intervals without core data was conducted using the Self-Organizing Map (SOM) method. The elastic properties of the reservoir rocks were evaluated by analyzing the relationship between effective porosity, P-wave velocity (Vp), and Young's Modulus. The results indicate that the Plover Formation reservoir can be classified into four rock types (RT-I to RT-IV) based on the HFU method using FZI values, with each rock type exhibiting distinct hydraulic characteristics. Higher FZI values correspond to improved reservoir quality, indicating an enhanced capacity of the reservoir rocks to transmit fluids. Furthermore, rock physics analysis reveals a negative relationship between effective porosity and both P-wave velocity (Vp) and Young's Modulus, where an increase in effective porosity is associated with a decrease in rock stiffness. The integration of HFU classification, petrographic analysis, and elastic parameters demonstrates that reservoir quality is controlled not only by porosity and permeability but also by rock texture, matrix content, cementation, and diagenetic processes. This integrated approach provides a more comprehensive reservoir characterization by linking hydraulic properties, lithological characteristics, and elastic rock properties.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Analisis Petrofisika, Hydraulic Flow Unit, Rock Physics. Petrophysical analysis, Hydraulic Flow Unit, Rock Physics |
| Subjects: | G Geography. Anthropology. Recreation > GB Physical geography > GB1197.7 Groundwater flow. Reservoirs |
| Divisions: | 61101-Magister Management Technology |
| Depositing User: | Lara Bella Khairunnisa |
| Date Deposited: | 22 Jul 2026 04:42 |
| Last Modified: | 22 Jul 2026 04:42 |
| URI: | http://repository.its.ac.id/id/eprint/136477 |
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