Analisis sekat sesar pada lapangan fza, cekungan banggai, sulawesi tengah
Penerbit : FTKE - Usakti
Kota Terbit : Jakarta
Tahun Terbit : 2026
Pembimbing 1 : Ramadhan Adhitama
Kata Kunci : Fault Seal Analysis, Petrel, Banggai Basin
Status Posting : Published
Status : Lengkap
| No. | Nama File | Hal. | Link |
|---|---|---|---|
| 1. | 2026_SK_STG_072002100016_Halaman-Judul.pdf | 15 | |
| 2. | 2026_SK_STG_072002100016_Surat-Pernyataan-Revisi-Terakhir.pdf | 1 | |
| 3. | 2026_SK_STG_072002100016_Surat-Hasil-Similaritas.pdf | 1 | |
| 4. | 2026_SK_STG_072002100016_Halaman-Pernyataan-Persetujuan-Publikasi-Tugas-Akhir-untuk-Kepentingan-Akademis.pdf | 1 | |
| 5. | 2026_SK_STG_072002100016_Lembar-Pengesahan.pdf | 1 | |
| 6. | 2026_SK_STG_072002100016_Pernyataan-Orisinalitas.pdf | 1 | |
| 7. | 2026_SK_STG_072002100016_Formulir-Persetujuan-Publikasi-Karya-Ilmiah.pdf | 1 | |
| 8. | 2026_SK_STG_072002100016_Bab-1.pdf | 3 | |
| 9. | 2026_SK_STG_072002100016_Bab-2.pdf | 20 |
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| 10. | 2026_SK_STG_072002100016_Bab-3.pdf | 10 |
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| 11. | 2026_SK_STG_072002100016_Bab-4.pdf | 27 |
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| 12. | 2026_SK_STG_072002100016_Bab-5.pdf | 1 | |
| 13. | 2026_SK_STG_072002100016_Daftar-Pustaka.pdf | 5 | |
| 14. | 2026_SK_STG_072002100016_Lampiran.pdf | 1 |
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P Penelitian ini dilakukan pada bagian timurlaut cekungan banggai untuk menilai kemampuan penyekatan tiga sesar menggunakan pendekatan fault seal analysis (fsa). data yang digunakan merupakan hasil interpretasi profesional dari pt medco energi e&p indonesia dan lemigas, dengan dukungan teknis dari geomechanics international dan baker hughes. dataset meliputi 3d seismic, time surfaces, fault polygons, marker stratigrafi, log sumur (termasuk log fasies dan litologi), serta data tekanan sumur sebagai dasar validasi. pemodelan struktur dilakukan dengan membangun geometri sesar dan horizon, kemudian dihitung parameter fsa seperti shale gouge ratio, throw, dan juxtaposition melalui peta allan. distribusi vshale dari sumur digunakan untuk memperkuat evaluasi tingkat penyekatan. secara geologi, interval karbonat di area penelitian terdiri atas lima fasies utama: reef, fore reef, carbonate platform, bioclastic mounds, dan open marine (tight streak). variasi diagenesis seperti pelarutan, pengisian semen, dan pori sekunder menghasilkan perbedaan permeabilitas yang memengaruhi perilaku sesar terhadap fluida. hasil analisis menunjukkan bahwa ketiga sesar cenderung bersifat non-sealing, ditandai nilai sgr yang relatif rendah serta pertemuan litologi berpermeabilitas tinggi pada beberapa interval. integrasi data tekanan sumur tidak menunjukkan adanya perbedaan tekanan signifikan antarblok, sehingga mendukung interpretasi bahwa sesar tidak berfungsi sebagai penyekat di area ini.
T This study examines the fault sealing capacity of three major faults in the northeastern banggai basin based on integrated subsurface datasets supplied by pt medco energi e&p indonesia and lemigas, with technical input from geomechanics international and baker hughes. the assessment draws on 3d seismic interpretation, time-structure maps, fault polygon frameworks, stratigraphic markers, well log data (including facies and lithology classifications), and well pressure measurements used for cross-validation. structural models were constructed prior to computing key fault seal analysis parameters, including shale gouge ratio, fault displacement, and lithological juxtaposition, with vshale distributions from the wells providing additional constraint. the carbonate succession in the study area comprises five principal facies (reef, fore reef, carbonate platform, bioclastic mounds, and open marine/tight streak), each showing variable diagenetic overprints such as dissolution, cementation, and development of secondary porosity, which control permeability contrasts and influence fault-related fluid behavior. the results indicate that the three faults are predominantly non-sealing, reflected by consistently low sgr values and recurrent juxtaposition of higher-permeability units. well pressure data also reveal no significant pressure contrasts across the faults, reinforcing the interpretation that these structures do not act as effective barriers to fluid flow in this area.