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Aji Suteja
Abstrak :
ABSTRAK
Telah dilakukan penelitian delineasi subcekungan sedimen di cekungan Sengkang yang terletak di lengan bagian selatan Sulawesi. Delineasi subcekungan ini menggunakan kombinasi metode gaya berat dan magnetik, dimana cakupan data magnetik terbatas hanya didaerah Sengkang, sedangkan gaya berat tersebar diseluruh lengan bagian selatan Sulawesi. Berdasarkan analisis horizontal derivative dan second vertical derivative terhadap data gaya berat dan magnetik, subcekungan yang terbentuk dikontrol oleh patahan-patahan di lengan bagian selatan Sulawesi, terutama oleh patahan Walanae. Hasil analisis spektrum menunjukkan kedalaman rata-rata residual adalah 2 km dan kedalaman rata-rata regional sebesar 5,8 km. Hasil dari analisis horizontal derivative dan second vertical derivative yang di overlay dengan citra anomali residual dari gaya berat, dimana batuan dengan densitas tinggi seperti batuan ultrabasa, metamorf dan volkanik menjadi batas masing-masing subcekungan, sehingga terbentuk 8 subcekungan yaitu subcekungan A, subcekungan B, subcekungan C, subcekungan D, subcekungan E dan subcekungan F, subcekungan G dan subcekungan H. Batuan penyusun subcekungan ini diisi oleh batuan sedimen dari formasi Walanae yang dicirikan dengan densitas rendah dan anomali gaya berat yang rendah pula.
ABSTRACT
The delineation of sub basin has conducted at Sengkang basin that located in the southern part of Sulawesi arm. The delineation of sub basin using a combination of gravity and magnetic methods, where the magnetic data is limited, coverage only Sengkang area, while gravity station are scattered throughout the southern part of Sulawesi arm. Based on analysis of horizontal derivative and second vertical derivative of the magnetic and gravity data, sub basins formerd controlled by faults in the southern arm of Sulawesi, mainly by Walanae fault. The results of the spectrum analysis shows the average depth of residual is 2 km and the depth of the regional is 5.8 km. The results analysis of the horizontal derivatives and the second vertical derivative that are overlaid with the anomalies residual of gravity, where rocks with high density like ultramafics, metamorphic and volcanic be the edge for each sub basin, and there are 8 sub basin namely by sub basin A, sub basin B, sub basin C, sub basin D, sub basin E, sub basin F, sub basin G and sub basin H. Sub basin are filled by sedimentary rocks from Walanae formation that characterized by low density and low gravity anomaly.
2017
T47428
UI - Tesis Membership  Universitas Indonesia Library
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Ecep Suryana
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2007
T39827
UI - Tesis Membership  Universitas Indonesia Library
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Fatimah
Abstrak :
[Lapangan FTM sebagai lapangan minyak dan gas bumi. Pada lapangan FTM terdapat dua reservoir gas dan reservoir minyak, yaitu formasi Minahaki dan Formasi Tomori. Penelitian yang dilakukan pada formasi Tomori dengan litologi batuan karbonat dan merupakan reservoir minyak yang berumur Miocene Akhir. Stuktur ini terbentuk oleh sesar mendatar (Trust fault) dengan sudut kecil yang berarah NE-SW. Identifikasi hidrokarbon pada studi ini didasarkan pada hasil metode dekomposisi spektral. Metode dekomposisi spektral berbasis ISA dan CWT digunakan untuk analisa anomali frekuensi rendah. Anomali frekuensi rendah berasosiasi adanya hidrokarbon. Analisa petrofisika pada lapangan FTM pada daerah hidrokarbon mempunyai porositas yang bagus dan saturasi air yang kecil. Hasil dari pemetaan zona prospek hidrokarbon dan analisa petrofisika ini diharapkan bisa dilakukan delineasi zona prospek untuk kepentingan survey seismik lebih lanjut dan acuan untuk proses pemboran.;FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process.;FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process.;FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process.;FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process.;FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process., FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process.]
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
T43251
UI - Tesis Membership  Universitas Indonesia Library
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Fatimah
Abstrak :
[Lapangan FTM sebagai lapangan minyak dan gas bumi. Pada lapangan FTM terdapat dua reservoir gas dan reservoir minyak, yaitu formasi Minahaki dan Formasi Tomori. Penelitian yang dilakukan pada formasi Tomori dengan litologi batuan karbonat dan merupakan reservoir minyak yang berumur Miocene Akhir. Stuktur ini terbentuk oleh sesar mendatar (Trust fault) dengan sudut kecil yang berarah NE-SW. Identifikasi hidrokarbon pada studi ini didasarkan pada hasil metode dekomposisi spektral. Metode dekomposisi spektral berbasis ISA dan CWT digunakan untuk analisa anomali frekuensi rendah. Anomali frekuensi rendah berasosiasi adanya hidrokarbon. Analisa petrofisika pada lapangan FTM pada daerah hidrokarbon mempunyai porositas yang bagus dan saturasi air yang kecil. Hasil dari pemetaan zona prospek hidrokarbon dan analisa petrofisika ini diharapkan bisa dilakukan delineasi zona prospek untuk kepentingan survey seismik lebih lanjut dan acuan untuk proses pemboran. ......FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process;FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process., FTM Field is one of the new fields as energy reserves in Indonesia as an oil and gas field. In the field there are two reservoirs FTM gas and oil reservoirs, namely the formation Minahaki and Tomori Formation. Research conducted on the formation lithology Tomori with carbonate rocks and an oil reservoir Late Miocene. This structure is formed by a horizontal fault (Trust fault) with a small angle of the NE - SW trending. Hydrocarbon determination using spectral decomposition method, based spectral decomposition method is used for analysis ISA and CWT low frequency anomaly. Low frequency anomaly associated hydrocarbon indicator. Petrophysical analysis FTM field have good porosity and water saturation small on hydrocarbon area. Results of mapping zones of hydrocarbon prospects and petro physical analysis is expected to be used for the benefit of the prospect delineation zone further seismic surveys and drilling of reference for the process]
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2015
T-pdf
UI - Tesis Membership  Universitas Indonesia Library
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Jackob Tameno
Abstrak :
Tugas Akhir ini bertujuan untuk merancang sebuah bioskop dengan konsep Misbar di kawasan Lokasari. Bioskop merupakan fasilitas hiburan yang populer dan memiliki peran penting dalam kehidupan masyarakat modern. Kawasan ini dipilih sebagai lokasi perancangan karena potensinya sebagai pusat hiburan yang strategis dan nilai historis yang pernah ada. Delineasi kawasan dilakukan dengan menganalisis karakteristik koridor Mangga Besar, termasuk potensi pasar, kondisi lingkungan, dan persyaratan teknis. Metode yang digunakan meliputi studi literatur, survei lapangan, wawancara, serta ekplorasi desain dengan menggunakan software. Rancangan ini bertujuan untuk memberikan pengalaman nostalgia dalam menonton film, menciptakan atmosfer yang menarik dan baru, memperkuat karakteristik kawasan Lokasari sebagai tempat hiburan, meningkatkan daya tarik kawasan terutama dengan pertimbangan adanya titik transit KRL dan MRT, dan memudarkan kesan negatif kawasan sebagai red district. Tugas akhir ini diharapkan dapat memberikan kontribusi dalam pengembangan kawasan Lokasari serta mampu mengiring, mengedukasi, memberdayakan, serta memudarkan kesan negatif mengenai kawasan ini. ...... This Final Project aims to design a cinema with the concept of "Misbar" in the Lokasari area. Cinemas are popular entertainment facilities that play a crucial role in modern society. The Lokasari area was chosen as the design location due to its potential as a strategic entertainment center and its historical value. The delineation of the area was conducted by analyzing the characteristics of the Mangga Besar corridor, including market potential, environmental conditions, and technical requirements. The methods used in this study included literature review, field surveys, interviews, and design exploration using software. The design aims to provide a nostalgic film-watching experience, create an attractive and fresh atmosphere, reinforce the characteristics of the Lokasari area as an entertainment destination, enhance the area's appeal, especially considering its proximity to KRL and MRT transit points, and diminish the negative impression as a red district area's. This Final Project is expected to contribute to the development of the Lokasari area, while also guiding, educating, empowering, and dispelling negative perceptions about the area.
Depok: Fakultas Teknik Universitas Indonesia, 2023
PR-pdf
UI - Tugas Akhir  Universitas Indonesia Library
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Fadhli Yusuf
Abstrak :
Permasalahan delineasi sistem geothermal adalah hal yang penting untuk dikaji, karena akan menentukan seberapa besar prospek panas bumi yang berada di subsurface. Metode magnetik bisa menentukan zonasi daerah di subsurface yang mengalami demagnetisasi akibat thermal. Batuan yang menjadi penyusun reservoir mengalami perubahan suseptibilitas dari tinggi ke rendah akibat pengaruh fluida dan panas dari heat source yang berada pada sistem tersebut. Penelitian ini telah membuktikan keberadan delineasi sistem panas bumi Lapangan "E" dengan metode Magnetik dan Magnetotellurik, data magnetik sebanyak 674 titik dikoreksi dengan diurnal variation dan undistributed earth magnetic field atau lebih dikenal dengan IGRF. Setelah itu telah dilakukan kontinuasi hingga ketinggian 700 m asl, dan terlihat bodi yang berorientasi dipole dengan arah NE-SW pada inklinasi intermediet. Dilakukan Reduction to Pole pada hasil pengangkatan keatas dan didapatlah anomali low negatif yang mengindikasikan keberadaan hydrothermally demagnetization rock. Hasil RTP juga dikorelasikan dengan kurva apparent resistivity MT, didapatkan nilai anomali low negatif cenderung berasosiasi dengan kurva MT tipe H. Kontur RTP dimodelkan dengan inversi 3D magnetik dan didapatkan zonasi reservoir berada dikedalaman mean sea level s/d 1900 m bsl. Cross korelasi pun dilakukan antara hasil Inversi 3D magnetik dan 2D Forward Modelling Magnetik serta inversi MT, bahwa zona batuan reservoir memiliki suseptibilitas sebesar 0.04-0.06 Cgs dan dengan resistivitas 20-80 ohm.m, Keberadaan reservoar panas bumi diduga berada di zona upflow hingga ke arah SW yang berada di sekitar sesar utama di daerah lapangan" E" yang berasosiasi dengan anomali low negatif sebesar-300 s.d -550 nT.
The delineation problem of the geothermal system is important to examine, as it will determine how big the geothermal prospects are in the subsurface. Magnetic methods can zonate the subsurface region undergoing thermal demagnetization processes. The rocks that make up the reservoir have changed the susceptibility from high to low due to the influence of fluid and heat from the heat source in the system. This research has proved the existence of Geothermal Field 39 s delineation of Field E with Magnetic and Magnetotellurik method, 674 points magnetic data corrected by diurnal variation and undistributed earth magnetic field or better known as IGRF.After that continuity has been carried out to a height of 700 m asl, and visible dipole oriented body with NE SW direction in intermediate inclination. Reduction to Pole was performed on uplift and obtained a low negative anomaly indicating the presence of hydrothermally demagnetization rock. The RTP results are also correlated with the apparent resistivity MT curve, and the low negative anomaly values tend to be associated with the Type H MT curve. The RTP contour is modeled by a 3D magnetic. And the reservoir zonation is in the mean sea level to 1900 m bsl. Cross correlation was performed between magnetic 3D Inversion and 2D Forward Modeling Magnetic and MT inversion, that reservoir rock zone has a susceptibility of 0.04 0.06 Cgs and with resistivity of 20 80 ohm.m The existence of geothermal reservoir is suspected to be in the upflow zone up to SW direction is in the vicinity of the main fault in the E field area associated with a negative low anomaly 300 s d 550 nT.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2017
S67018
UI - Skripsi Membership  Universitas Indonesia Library
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Haryo Gusmedi Sudarmo
Abstrak :
Telah dilakukan penelitian guna mendelineasi sistem panas bumi lapangan geothermal ldquo;H rdquo;. Penelitian ini menggunakan metode remote sensing untuk memetakan struktur dan alterasi di permukaan. Analisis geokimia digunakan untuk mengetahui karakteristik sistem panas bumi dan analisis geofisika digunakan untuk memetakan kondisi sistem panas bumi di bawah permukaan. Berdasarkan analisis remote sensing dengan teknik band combination secara pengamatan manual menunjukkan bahwa arah utama dari kelurusan - kelurusan yang berkembang di daerah penelitian ldquo;H rdquo; adalah Barat Laut - Tenggara dan Barat Daya - Timur Laut sesuai dengan Peta Geologi Regional yang berkorelasi dengan kemunculan beberapa manifestasi. Analisis remote sensing juga menemukan 1 lokasi yang diduga merupakan alterasi di permukaan. Analisis data geokimia dilakukan terhadap 12 manifestasi menunjukkan bahwa mata air panas SL-1, SL-2, SLM-1, SLM-2, HTS-1, HTS-2, HTS-3, TBK, TLH-1, TLH -2, TLH-3 dan TLH- 4 merupakan manifestasi tipe outflow. Berdasarkan diagram segitiga ternary Na - K - Mg, diagram Na-K/Mg-Ca, diagram Enthalpy - Chloride Mixing Model, geothermometer Na/K menunjukkan temperatur reservoar adalah sekitar 210 C - 240 C dan dapat dikategorikan ke dalam sistem geothermal moderate to high temperature. Analisis Inversi 3-D Data MT menggunakan 66 data titik ukur. Berdasarkan inversi 3-D Data MT diketahui bahwa lapisan clay cap dengan nilai resistivitas rendah le; 10 ?m tersebar di Selatan dengan ketebalan 500 meter hingga 1000 meter. Lapisan reservoar terletak di bawah clay cap dengan nilai resistivitas >10 - 65 ?m. Base of Conductor BOC diperkirakan berada pada kedalaman 700 meter dengan updome berada di antara Sesar Wairutung dan Sesar Banda. Berdasarkan peta BOC diperoleh luas area prospek geothermal sekitar 16.5 km2.
The study of ldquo H rdquo geothermal field has been conducted to delineate their geothermal system. This study uses remote sensing method for mapping structure and alteration on the surface. Geochemical analysis is used to determine the characteristics of geothermal system and geophysical analysis is used to interpret the condition of geothermal system of sub surface. Based on remote sensing analysis using band combination technique with manual observation indicates that the main direction of the developed lineaments in the research area H is Northwest Southeast and Southwest Northeast in accordance with Regional Geological Map correlated with the appearance of several manifestations. The remote sensing analysis also found 1 suspected alteration site on the surface. Analysis of geochemical data was performed on 12 manifestations shows that hot springs SL 1, SL 2, SLM 1, SLM 2, HTS 1, HTS 2, HTS 3, TBK, TLH 1, TLH 2, TLH 3 and TLH 4 are outflow manifestations type. Based on the diagram of the ternary triangle Na K Mg, Na K Mg Ca diagram, Enthalpy Chloride Mixing Model diagram, Na K geothermometer estimates the reservoir temperature is about 210 C 240 C and can be categorized into the moderate to high temperature geothermal system. Analysis of inversion 3 D MT data using 66 data points measurement. Based on 3 D inversion MT data is known that clay cap layer with low resistivity value le 10 m spread in South with thickness 500 meter to 1000 meter. The reservoir layer is located under clay cap with resistivity value 10 m 65 m. Base of Conductor BOC is estimated to be at depth of 700 meters with an updome located around Wairutung Fault Banda Fault. Based on BOC, the prospectable area of geothermal system is about 16.5 km2.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2017
T48035
UI - Tesis Membership  Universitas Indonesia Library