Analisis Seismik Atribut Untuk Identifikasi Persebaran Resevoir Batupasir Pada Formasi Balikpapan, Lapangan V

Aviani, Nisya (2022) Analisis Seismik Atribut Untuk Identifikasi Persebaran Resevoir Batupasir Pada Formasi Balikpapan, Lapangan V. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Lapangan V terletak di Formasi Balikpapan, Cekungan Kutai, Kota Balikpapan, Kalimantan Timur sebagai salah satu bukti keekonomisan reservoir Cekungan Kutai. Fokus area penelitian pada zona utama (VMZ) dipilih karena pada penelitian internal yang tidak dipublikasikan oleh Pertamina Hulu Mahakam (PHM), zona utama (VMZ) memiliki dominasi sedimen endapan delta dan reservoir utama berupa fasies mouth bar dan fasies distributary channel, dimana fasies distributary channel berupa batupasir. Zona Utama (VMZ) pada strata Miosen Tengah yang digunakan ialah Horizon SU4 - SU5e yang didalamnya terdapat horizon 4a, 4e, 4h-1, 5a dan 5e dengan dominasi batupasir dan batubara. Untuk memetakan persebaran reservoir batupasir pada Horizon SU4 - SU5e menggunakan analisis seismik atribut, yaitu atribut amplitudo RMS, dan amplitudo sweetness dengan menggunakan data seismik 3D PSTM, borehole checkshot, well log dan lima sumur sebagai kontrol. Peta waktu struktur dibuat dengan cara interpolasi konvergen gridding dari hasil picking horizon seismik. Analisis menggunakan atribut amplitudo RMS, dan amplitudo sweetness karena hampir seluruh marker horizon yang digunakan, yaitu SU4 - SU5e mempertimbangkan seluruh data yang dimiliki baik positif maupun negatif. Berdasarkan hasil analisis atribut seismik menunjukkan bahwa atribut amplitudo RMS, dan amplitudo sweetness tidak memiliki perbedaan yang signifikan dalam mengidentifikasi persebaran batupasir reservoir pada SU4 - SU5e. Namun, atribut sweetness memiliki nilai korelasi paling baik, yaitu 0.861 dibandingkan atribut RMS. Hal tersebut membuktikan bahwa atribut sweetness memperlihatkan keberadaan anomali reservoir yang lebih baik. Pola persebaran batupasir dominan di bagian timur laut-tenggara dengan dominasi channel berada pada dim area.
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Field V is located in the Balikpapan Formation, Kutai Basin, Balikpapan City, East Kalimantan as a proof of the economics of the Kutai Basin reservoir. The focus of the research area on the main zone (VMZ) was chosen because in internal research that was not published by Pertamina Hulu Mahakam (PHM), the main zone (VMZ) had a dominance of deltaic sediments and the main reservoir in the form of mouth bar facies and distribution channel facies. channel in the form of sandstone. The Main Zone (VMZ) in the Middle Miocene strata used is Horizon SU4 - SU5e which includes horizons 4a, 4e, 4h-1, 5a and 5e with the dominance of sandstone and coal. To map the distribution of sandstone reservoirs on Horizon SU4 - SU5e using seismic attribute analysis, namely the RMS amplitude attribute, and the sweetness amplitude using 3D PSTM seismic data, borehole checkshot, well log and five wells as controls. The structure time map is made by interpolating convergent gridding from the seismic horizon picking. The analysis uses the attributes of the RMS amplitude, and the sweetness amplitude because almost all the marker horizons used, namely SU4 - SU5e consider all the data owned, both positive and negative. Based on the results of the seismic attribute analysis, it shows that the RMS amplitude and sweetness attributes do not have a significant difference in identifying the distribution of reservoir sandstones at SU4 - SU5e. However, the sweetness attribute has the best correlation value, which is 0.861 compared to the RMS attribute. This proves that the sweetness attribute shows the presence of a better reservoir anomaly. The distribution pattern of sandstone is dominant in the northeast-southeast part with the dominant channel being in the dim area.

Item Type:	Thesis (Other)
Additional Information:	RSGf 551.2 Avi a-1 2022
Uncontrolled Keywords:	Reservoir batupasir, channel, atribut amplitudo RMS, atribut amplitudo minimum, atribut sweetness, Sand Reservoir, channel, RMS amplitude attribute, minimum amplitude attribute, sweetness attribute
Subjects:	G Geography. Anthropology. Recreation > GB Physical geography > GB1197.7 Groundwater flow. Reservoirs Q Science > QE Geology > QE539.2.S4 Seismic models
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User:	- Davi Wah
Date Deposited:	18 Oct 2023 07:20
Last Modified:	18 Oct 2023 07:20
URI:	http://repository.its.ac.id/id/eprint/104913

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