MAULIDA, SUKMA (2024) ANALISIS PETROFISIKA DAN ZONA FASIES PENGENDAPAN DALAM PENENTUAN ZONA POTENSI HIDROKARBON PADA LAPANGAN “SM”, FORMASI BATURAJA, CEKUNGAN SUMATRA SELATAN. Other thesis, UPN Veteran Yogyakarta.
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Abstract
vi
ABSTRAK
Penelitian ini dilakukan pada 3 sumur yang terletak di Lapangan “SM”,
Formasi Baturaja, Cekungan Sumatra Selatan. Cekungan Sumatra Selatan
merupakan salah satu cekungan yang dikenal sangat prospektif dan potensial di
Indonesia. Formasi Baturaja memiliki potensi sebagai reservoir rock sekaligus
trap formation, oleh sebab itu formasi ini dapat menjadi target yang sangat
potensial untuk menjadi daerah produksi. Untuk mengambangkan lapangan ini
menjadi lapangan produksi perlu dilakukan peninjauan produktivitas sumur yang
direpresentasikan dengan karaktersitik reservoir pada suatu lapangan minyak
dan gas bumi. Studi karakteristik reservoir dilakukan dengan pendekatan analisis
petrofisika.
Metode penelitian yang digunakan dalam penelitian ini yakni dengan
analisis kualitatif dan analisis kuantitatif terhadap 3 sumur dengan cara analisis
data wireline log yang divalidasi dengan data core, mudlog, well report, dan
petrografi. Analisis kualitatif dilakukan untuk mengetahui litofasies Formasi
Baturaja, menentukan marker sikuen stratigrafi serta menginterpretasi zona
fasies lingkungan pengendapannya. Analisis kuantitatif dilakukan untuk
mengetahui nilai properti reservoir berupa volume shale (VSh), porositas,
saturasi air (SW), permeabilitas (k), serta mengetahui zona net pay pada sumur
Lapangan “SM”.
Berdasarkan analisis kualitatif diketahui bahwa Formasi Baturaja
memiliki beberapa variasi litofasies yaitu vuggy wackestone-packstone, chalky
wackestone-packstone, vuggy packstone, encrust algae packstone, red algae
packstone, lithic packstone, interbebbed shale-wackestone, calcareous shale,
dan conglomerate dengan interpretasi zona fasies lingkungan pengendapan
termasuk kedalam reef flat. Hasil perhitungan analisis kuantitatif menghasilkan
nilai properti reservoir berupa volume shale sebesar 0,1%-42%, porositas sebesar
8%-39%, saturasi air sebesar 3%-63%, permeabilitas sebesar 0,08-793,22 mD
dan pay zone sebesar 4,5-222 ft.
Kata Kunci: Formasi Baturaja, Cekungan Sumatra Selatan, Analisis fasies,
Analisis petrofisika
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ABSTRACT
This study was conducted on 3 wells located in the “SM” Field, Baturaja
Formation, South Sumatra Basin. The South Sumatra Basin is one of the most
prospective and potential basins in Indonesia. The Baturaja Formation has the
potential as a reservoir rock as well as a trap formation, therefore this
formation can be a very potential target to become a production area. To
develop this field into a production field, it is necessary to review the well
productivity represented by reservoir characteristics in an oil and gas field. The
study of reservoir characteristics is carried out with a petrophysical analysis
approach.
The research method used in this study is qualitative analysis and
quantitative analysis of 3 wells by analyzing wireline log data validated with
core, mudlog, well report, and petrographic data. Qualitative analysis was
carried out to determine the lithofacies of the Baturaja Formation, determine the
stratigraphic sequence marker and interpret the facies zone of the depositional
environment. Quantitative analysis was conducted to determine the value of
reservoir properties in the form of shale volume (VSh), porosity, water
saturation (SW), permeability (k), and to determine the net pay zone in the “SM”
Field well.
Based on qualitative analysis, it is known that the Baturaja Formation
has several variations of lithofacies, namely vuggy wackestone-packstone,
chalky wackestone-packstone, vuggy packstone, encrust algae packstone, red
algae packstone, lithic packstone, interbebbed shale-wackestone, calcareous
shale, and conglomerate with the interpretation of the depositional environment
facies zone included in the reef flat. The results of quantitative analysis
calculations produce reservoir property values in the form of shale volume
0.1%-42%, porosity 8%-39%, water saturation 3%-63%, permeability 0.08-
793.22 mD and pay zone 4.5-222 ft.
Keyword: Baturaja Formation, South Sumatra Basin, Facies analysis,
Petrophysic analysis
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Baturaja Formation, South Sumatra Basin, Facies analysis, Petrophysic analysis |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 08 Aug 2024 03:05 |
| Last Modified: | 08 Aug 2024 03:05 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/40647 |
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