Evaluasi Reservoir sebagai CO2 Geological Storage dan Estimasi Kapasitas Penyimpanan pada Lapangan HK, Cekungan Sumatra Selatan

Rahayu, Helda Kusuma (2024) Evaluasi Reservoir sebagai CO2 Geological Storage dan Estimasi Kapasitas Penyimpanan pada Lapangan HK, Cekungan Sumatra Selatan. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5017201006-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (13MB) | Request a copy

Abstract

Lapangan HK yang berada di Cekungan Sumatra Selatan telah menuju kondisi depleted setelah diproduksi sejak tahun 1998. Evaluasi awal untuk mengetahui potensi reservoir di Lapangan HK sebagai CO_2 geological storage perlu dilakukan. Penelitian ini bertujuan untuk mengevaluasi kesesuaian (suitability) reservoir di Lapangan HK sebagai CO_2 geological storage dan mengidentifikasi zona injeksi potensial berdasarkan karakteristiknya dari analisis petrofisika dan rock typing dengan metode hydraulic flow unit (HFU), serta mengestimasi kapasitas penyimpanan CO_2 dengan pendekatan original gas in place (OGIP). Hasil analisis petrofisika dan rock typing menunjukkan bahwa reservoir penelitian di Lapangan HK memiliki kesesuaian yang baik (good suitability) sebagai CO_2 geological storage dengan ketebalan gross 201.42 m dan net 83.8 m, porositas rata-rata 19%, dan permeabilitas rata-rata 527.11 mD pada kedalaman reservoir ± 1700 m dengan trapping stratigrafi lapisan seal dengan ketebalan gross 161.45 m. Zona HZ-3 diidentifikasi memiliki potensi sebagai zona injeksi CO_2 dengan ketebalan gross 52.69 m, porositas rata-rata 21%, dan permeabilitas rata-rata 786.14 mD. Estimasi kapasitas penyimpanan CO_2 pada zona HZ-3 secara teoritis sebesar 8.65 juta ton dan efektif sebesar 4.05 – 7.78 juta ton.
============================================================
The HK field in the South Sumatra Basin has been depleted after being produced since 1998. An initial evaluation to determine the potential of reservoirs in the HK Field as CO_2 geological storage needs to be carried out. This study aims to evaluate the suitability of reservoirs in the HK Field as CO_2 geological storage and identify potential injection zones based on their characteristics from petrophysical analysis and rock typing using the hydraulic flow unit (HFU) method, as well as estimating CO_2 storage capacity with the original gas-in-place (OGIP) approach. The results of petrophysical analysis and rock typing showed that the research reservoir in the HK Field had good suitability as a CO_2 geological storage with a gross thickness of 201.42 m and a net of 83.8 m, an average porosity of 19%, and an average permeability of 527.11 mD at a reservoir depth of ± 1700 m with stratigraphy trapping of the seal layer with a gross thickness of 161.45 m. The HZ-3 zone was identified as a potential injection zone with a gross thickness of 52.69 m, an average porosity of 21%, and an average permeability of 786.14 mD. The estimated CO_2 storage capacity in the HZ-3 zone was 8.65 million tons theoretically and 4.05 – 7.78 million tons effectively.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Analisis Petrofisika, CO2 Geological Storage, Evaluasi Reservoir, Hyrdaulic Flow Unit, Kapasitas Penyimpanan CO2, Petrophysical Analysis, Reservoir Evaluation, CO2 Storage Capacity
Subjects:	Q Science > QE Geology
Divisions:	Faculty of Civil, Environmental, and Geo Engineering > Geophysics Engineering > 33201-(S1) Undergraduate Theses
Depositing User:	Helda Kusuma Rahayu
Date Deposited:	06 Aug 2024 02:11
Last Modified:	06 Aug 2024 02:11
URI:	http://repository.its.ac.id/id/eprint/112838

Actions (login required)

View Item