Dimyati, Syubban Kamil (2025) Karakterisasi Reservoir Hidrokarbon Berdasarkan Analisis Inversi Seismik Impedansi Akustik Dan Multiatribut Seismik Pada Reservoir Manutahi Sandstone, Formasi Matemateaonga, Cekungan Taranaki, Selandia Baru. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 5017211032-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
5017211032-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (4MB) | Request a copy |
Abstract
Cekungan Taranaki merupakan salah satu cekungan penghasil hidrokarbon utama di Selandia Baru yang masih berproduksi hingga saat ini. Salah satu formasi kunci dalam cekungan ini adalah reservoir Manutahi Sandstone pada Formasi Matemateaonga, yang terbentuk pada periode akhir Miosen hingga awal Pliosen. Karakterisasi reservoir hidrokarbon diperlukan untuk mengetahui sifat dari parameter fisis reservoir dan juga untuk mengetahui persebaran dari reservoir tersebut, agar eksplorasi dan pengembangan lapangan menjadi lebih optimal. Pendekatan inversi seismik dan multiatribut diterapkan untuk mengetahui nilai impedansi akustik dari reservoir dan mengkarakterisasi parameter fisis lain seperti porositas. Analisis sensitivitas dilakukan untuk memisahkan litologi berdasarkan nilai impedansi akustik, densitas, dan porositas. Korelasi dari nilai impedansi akustik dan porositas efektif cukup baik yaitu sebesar 0,818. Nilai impedansi akustik untuk zona reservoir sandstone adalah rentang 6200 - 9000 ((m/s)*(g/cc)) dan porositas yang tinggi sebesar 0.18 – 0.27 v/v. Metode inversi yang digunakan merupakan metode inversi impedansi akustik model based soft constraint dengan nilai korelasi sebesar 0.9748 dan eror sebesar 0.2264. Prediksi parameter porositas efektif dengan metode multiatribut didapatkan nilai korelasi sebesar 0.7076 dan didapatkan error sebesar 0.033 (v/v). Hasil persebaran nilai porositas efektif memiliki rentang nilai 0.10 – 0.25 (v/v). Sedangkan prediksi parameter kandungan serpih memiliki korelasi sebesar 0.8149 dengan error sebesar 0.1020, dan didapatkan persebaran nilai kandungan serpih 0.10 – 0.50 (v/v). Kemudian juga ditemukan lokasi sumur pengembangan baru berdasarkan peta persebaran impedansi akustik, persebaran porositas, dan persebaran kandungan serpih atau vshale, yaitu berada pada daerah utara dari area penelitian yang memiliki persebaran berarah barat laut – tenggara.
========================================================================================================================
The Taranaki Basin is one of New Zealand's main hydrocarbon-producing basins that is still in production today. One of the key formations in this basin is the Manutahi Sandstone reservoir in the Matemateaonga Formation, which was formed during the late Miocene to early Pliocene periods. Hydrocarbon reservoir characterization is necessary to determine the physical properties of the reservoir and to understand its distribution, thereby optimizing exploration and field development. Seismic inversion and multi-attribute approaches were applied to determine the acoustic impedance values of the reservoir and characterize other physical parameters such as porosity. Sensitivity analysis was conducted to separate lithologies based on acoustic impedance, density, and porosity values. The correlation between acoustic impedance and effective porosity values is quite good, at 0.818. The acoustic impedance values for the sandstone reservoir zone range from 6200 to 9000 ((m/s)*(g/cc)), with high porosity values of 0.18–0.27 v/v. The inversion method used is the acoustic impedance inversion method based on a soft constraint model with a correlation value of 0.9748 and an error of 0.2264. The prediction of effective porosity parameters using the multi-attribute method yielded a correlation value of 0.7076 and an error of 0.033 (v/v). The distribution of effective porosity values ranged from 0.10 to 0.25 (v/v). Meanwhile, the prediction of shale content parameters had a correlation of 0.8149 with an error of 0.1020, and the distribution of shale content values ranged from 0.10 to 0.50 (v/v). Additionally, new development well locations were identified based on the distribution maps of acoustic impedance, porosity, and shale content (vshale), specifically in the northern part of the study area, which exhibits a northwest–southeast-oriented distribution pattern.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Inversi Seismik Impedansi Akustik, Multiatribut Seismik, Porositas. ======================================================================================================================== Acoustic Impedance Seismic Inversion, Multiattribute Seismic, Porosity. |
| Subjects: | Q Science > QE Geology > QE538.5 Seismic tomography; Seismic waves. Elastic waves Q Science > QE Geology > QE539.2 Seismic traveltime inversion |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis |
| Depositing User: | Syubban Kamil Dimyati |
| Date Deposited: | 01 Aug 2025 06:17 |
| Last Modified: | 01 Aug 2025 06:17 |
| URI: | http://repository.its.ac.id/id/eprint/124525 |
Actions (login required)
 |
View Item |