Lestari, Putri Rida (2017) Karakterisasi Reservoir Karbonat Dengan Menggunakan Metode Avo Inversi Studi Kasus Lapangan “Ngawen”. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
3713100005-Undergraduate_Theses.pdf - Published Version Download (6MB) | Preview |
Abstract
Kebutuhan minyak dan gas bumi semakin meningkat, sehingga diperlukan adanya peningkatan eksplorasi hidrokarbon. Eksplorasi hidrokarbon bertujuan untuk mengetahui persebaran hidrokarbon pada reservoir. Karakteristik dari batuan reservoir sangat penting diketahui untuk mendapatkan reservoir yang bagus. Salah satu metode untuk mengetahui karakteristik batuan reservoir yaitu AVO (Amplitude Versus Offset) Inversi. Metode AVO juga bisa digunakan untuk mengetahui persebaran litologi. Dalam penelitian ini digunakan metode AVO Inversi, untuk mengetahui karakteristik reservoir pada batuan karbonat, persebaran litologi, dan persebaran hidrokarbon dengan studi kasus di lapangan Ngawen. Data yang digunakan dalam penelitian ini yaitu data seismik berupa Pre-stack gather 3D di area North East Java Basin, dan dua data sumur (sumur Ngawen 1 dan sumur Ngawen 2). Penelitian ini difokuskan pada formasi Ngimbang Karbonat. Hasil analisis crossplot menunjukkan bahwa parameter log gamma ray, P-impedace, S-Impedance, dan Lambda Mu-Rho (LMR) dapat mengidentifikasi litologi (porous carbonate, tight carbonate, dan shale) dan fluida (oil, gas, dan water) dengan baik. Penampang hasil AVO menunjukkan nilai intercept dan gradien, mampu mengidentifikasi adanya zona gas karbonat yang masuk dalam kelas 1 AVO. P-Impedance dan Lambda Mu-Rho (LMR) hasil AVO Inversi menunjukkan adanya zona reservoir dan fluida hidrokarbon pada porous carbonate dengan baik. Zona reservoir karbonat ditunjukkan dengan nilai P-Impedance dan nilai Lambda Mu-Rho (LMR) yang relatif tinggi. Zona fluida hidrokarbon memiliki nilai P-Impedance dan nilai LMR yang rendah.
=============================================================================================
The need for Oil and gas is increasing, so there is a need for increased hydrocarbon exploration. Exploration of hydrocarbons to determine the spread of hydrocarbons in the reservoir. Characteristics of reservoir rocks are essential for a good reservoir. One method to know the characteristics of reservoir rock is AVO (Amplitude Versus Offset) Inversion. AVO Inversion method can also be used to determine the spread of lithology. In this study used AVO Inversion method, to find out the reservoir characteristics in Carbonate rock, to know the spread of lithology, and spread of hydrocarbons with case studies in Ngawen field. The data used in this research is seismic data Pre-stack gather 3D areas in the North East Java Basin region, and two well data (Ngawen 1 well and Ngawen 2 well). This research is focused on Ngimbang Carbonate formation. The results of crossplot analysis show that gamma ray, P-impedace, S-Impedance, and Lambda Mu-Rho (LMR) log parameters can lead to lithology (porous carbonate, tight carbonate, and shale) and fluids (oil, gas, and water). The results of AVO show intercept and gradient value, capable of determine gas Carbonate zone entering the 1 AVO class. P-Impedance and Lambda Mu-Rho (LMR) result of AVO Inversion show reservoir zone and hydrocarbon fluid in the porous carbonate well. The Carbonate reservoir zone has relatively high P-Impedance and Lambda Mu-Rho (LMR) values. The hydrocarbon fluid zone has low P-Impedance and LMR values.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSGf 622.338 2 Les k-1 |
| Uncontrolled Keywords: | AVO Inversi, Reservoir Karbonat, P-Impedance, Lambda Mu-Rho, Formasi Ngimbang Karbonat. |
| Subjects: | G Geography. Anthropology. Recreation > GB Physical geography T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) |
| Divisions: | Faculty of Civil Engineering and Planning > Geophysics Engineering > 33201-(S1) Undergraduate Thesis |
| Depositing User: | Putri Rida Lestari |
| Date Deposited: | 26 Oct 2017 08:01 |
| Last Modified: | 05 Mar 2019 02:33 |
| URI: | http://repository.its.ac.id/id/eprint/42084 |
Actions (login required)
 |
View Item |