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Pemetaan Migas pada Cekungan Frontier Memberamo dengan Citra Satelit dan Didukung Data Subsurface Regional Tri Muji Susantoro; Suliantara
Lembaran Publikasi Minyak dan Gas Bumi Vol. 48 No. 3 (2014): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Kajian ini bertujuan untuk memetakan potensi hidrokarbon pada Cekungan Frontier Memberamodengan data citra satelit dan didukung data regional bawah permukaan. Interpretasi citra satelit LandsatTM dan Shuttle Radar Topographic Mission (SRTM) dilakukan untuk memperoleh gambaran geologipermukaan dan strukturnya. Hasil interpretasi menunjukkan 13 satuan satuan batuan, dari tua ke mudaadalah unit A, B, C, D, K, G, F, E, I, Q, J, M, dan H. Struktur yang berkembang berdasarkan interpretasiLandsat TM dan SRTM adalah struktur lipatan, kekar dan sesar yang terlihat jelas dibagian Selatan danUtara. Pusat dalaman dari peta gaya berat memperlihatkan potensi adanya batuan sumber di bagian Timur,yaitu area yang mempunyai sedimen paling tebal, berkisar antara 6.000-7.000 meter dan mempunyainilai 2.0 HFU. Hal ini memberikan harapan akan peluang terbentuknya migas di lokasi kajian. Buktiterbentuknya hidrokarbon dengan dijumpainya rembesan minyak yang mengalir di sepanjang sungai Teer.Batuan sumber diperkiraan berumur Miocene Tengah - Akhir, yaitu Formasi Makat dan berumur Plioceneawal yaitu Formasi Hollandia atau Mamberamo B. Batuan reservoar adalah formasi Memberamo C danMemberamo D yang berumur Pliocene Akhir. Batuan Tudung (Seal) diperkirakan terdiri atas formasiMakat dan Memberamo E.
Identifi kasi Potensi Migas Melalui Citra Satelit dengan Pendekatan Anomali Topografi (Studi Kasus Daerah Indramayu dan Sekitarnya) Indah Crystiana Crystiana; Tri Muji Susantoro; Taufan Junaedi
Lembaran Publikasi Minyak dan Gas Bumi Vol. 48 No. 2 (2014): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Tujuan dari penelitian ini adalah mengkaji karakteristik khusus topografi pada citra satelit yang dapatmencerminkan daerah potensi penghasil minyak dan gas bumi. Pendekatan yang digunakan adalah anomalitopografi . Dengan menggunakan citra penginderaan jauh, yaitu Citra Satelit Landsat TM yang direkampada Bulan Juni Tahun 1976. Pada citra penginderaan jauh karakter khusus topografi dapat diamati baikdari bentuk tinggian atau antiklinal, pola aliran sungai, serta kemiringan dan bayangan yang tampak padadata citra. Lokasi penelitian di Indramayu pada Cekungan Jawa Barat Utara yang merupakan daerah yangsudah terbukti (proven) adanya migas. Penentuan daerah potensi migas didasarkan pada asumsi 3 (tiga)parameter utama yaitu struktur, reservoir, dan migrasi. Parameter struktur didasarkan pada hasil identifi kasidan intepretasi citra satelit yang menghasilkan Remote sensing Potential Area (RPA). Parameter reservoirterdiri atas keberadaan sumur dan lapangan migas. Parameter migrasi didasarkan pada adanya sesar dankitchen area. Pembobotan dilakukan untuk menentukan kelas RPA, yaitu sangat potensial, potensial dankurang potensial. Hasil interpretasi diperoleh 84 RPA. Hasil validasi menggunakan data bawah permukaanmembuktikan bahwa dari 84 area potensi (RPA) yang diidentifi kasi dengan menggunakan data citraterdapat 37 RPA atau sekitar 44% berada pada struktur yang sudah terbukti menghasilkan hidrokarbon.Hasil pembobotan dari 84 RPA memperlihatkan 22 RPA dalam kategori sangat potensi, 38 RPA dalamkategori potensi, dan 24 RPA dalam kategori kurang potensi.
MONITORING OF MANGROVE GROWTH AND COASTAL CHANGES ON THE NORTH COAST OF BREBES, CENTRAL JAVA, USING LANDSAT DATA Tri Muji Susantoro; Ketut Wikantika; Lissa Fajri Yayusman; Alex Tan; M. Firman Ghozali
International Journal of Remote Sensing and Earth Sciences Vol. 16 No. 2 (2019)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2019.v16.a3221

Abstract

Severe abrasion occurred in the coastal area of Brebes Regency, Central Java between 1985 and 1995. Since 1997, mangroves have been planted around the location as a measure intended to prevent further abrasion. Between 1996 and 2018, monitoring has been carried out to assess coastal change in the area and the growth and development of the mangroves. This study aims to monitor mangrove growth and its impact on coastal area changes on the north coast of Brebes, Central Java Province using Landsat series data, which has previously proven suitable for wetland studies including mangrove growth and change. Monitoring of mangrove growth was analysed using the normalised difference vegetation index (NDVI) and the green normalised difference vegetation index (GNDVI) of the Landsat data, while the coastal change was analysed based on the overlaying of shoreline maps. Visual field observations of WorldView 2 images were conducted to validate the NDVI and GNDVI results. It was identified from these data that the mangroves had developed well during the monitoring period. The NDVI results showed that the total mangrove area increased between 1996 and 2018 about 9.82 km2, while the GNDVI showed an increase of 3.20 km2. Analysis of coastal changes showed that the accretion area about 9.17 km2 from 1996 to 2018, while the abrasion being dominant to the west of the Pemali River delta about 4.81 km2. It is expected that the results of this study could be used by government and local communities in taking further preventative actions and for sustainable development planning for coastal areas.
A Preliminary Study on Heavy Oil Location in Central Sumatra using Remote Sensing and Geographic Information Sytem Suliantara Suliantara; Tri Muji Susantoro; Herru Lastiadi Setiawan; Nurus Firdaus
Scientific Contributions Oil and Gas Vol 44 No 1 (2021)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.44.1.489

Abstract

Heavy oil which is classifi ed as non conventional oil is the target of exploration in the world. In Indonesia, the potential for heavy oil exploration is quite large, especially in the Central Sumatra basin. This study aims to map the location of potential heavy oil based on remote sensing data and regional gravity data supported by a geographic information system. Landsat 8 OLI satellite data is processed to produce 567 (RGB) color composite images, then further processing is carried out with DEM data to produce fusion images; mapping the vegetation index, clay mineral index, iron oxide index, surface temperature. The gravity data is used for mapping subsurface geological structures. Overlay analysis is carried out on the results of remote sensing data processing and interpretation of surface and subsurface geology. Based on the analysis, it shows that heavy oil fi elds are generally found on the surface and subsurface structures which are relatively identical and located on the edge of the basement high. Based on this analysis, the locations that have the potential for heavy oil and gas traps are on the northeast edge, Dalu-dalu High, the edge of Kampar High, the west edge of Kuantan High, the southwest edge of the Beruk High, the southwest edge of the Sembilan High.
An Integrated Approach for Revisiting Basin-Scale Heavy Oil Potential of The Central Sumatera Basin Bambang Widarsono; Herru Lastiadi Setiawan; Tri Muji Susantoro; Suliantara Suliantara; Jonathan Setyoko Hadimuljono; Desi Yensusminar; Julikah Julikah; Ongki Ari Prayoga
Scientific Contributions Oil and Gas Vol 44 No 1 (2021)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.44.1.493

Abstract

Central Sumatra Basin is one of the most prolifi c hydrocarbon basins in Indonesia and has proved itself as being the largest contributor to Indonesia’s national crude oil production. Heavy oil fi elds in the basin, such Duri fi eld as the largest one, plays a very important role in making up the basin’s whole oil production output. In general, the Central Sumatra Basin is also acknowledged for its heavy oil potential. Accordingly, a study under the auspices of the Ministry of Energy and Mineral Resources (MEMR) of the Republic of Indonesia is carried out to re-visit the potential. The study establishes and implements an integrated approach formed by a combined macro and micro analyses. In the macro analysis, a combined evaluations of regional geology, geophysics, geochemistry, remote sensing/geographic information system ( GIS), regional geothermal study, and fi eld survey/ microbiology is performed to identify geological positions of the heavy oil potential. In the micro analysis, on the other hand, qualitative and quantitative well-log analyses supported by well-test and laboratory measurement data on the identifi ed geological positions are carried out with an aim of identifying heavy oil bearing reservoirs/traps under three categories of certainty. The main result of the study is identifi cation of 51 fi elds/structures - producing and non-producing – that bears heavy oil within the three categories. Findings of the study can certainly be used as a prerequisite for more intensive and expansive studies to meet the need for a more solid conclusion regarding the heavy oil potential of the Central Sumatra Basin.
HYDROCARBON POTENTIAL OF TOLO BAY MOROWALI REGENCY: QUALITATIVE ANALYSIS Suliantara Suliantara; Tri Muji Susantoro
Scientific Contributions Oil and Gas Vol 38 No 1 (2015)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.38.1.536

Abstract

Tolo Bay is located between East Arm and Southeast Arm Sulawesi, reaching a water depth of up to 3500 meters below sea level. Regionally, this block is situated within Banggai Basin where some gas and oil fi elds are already in production. The closest fi eld is Tiaka Oil Field located about 125 kilometers northwest of the study area. A geo-science review has been conducted to clarify the potential existence of hydrocarbon in this block. Based on previous reports, papers, and subsurface data from the Directorate General of Oil and Gas, the study area is located within the collision area between Banggai-Sula Microcontinent and Sulawesi. This collision occurred during Late Creataceous and Middle Miocene periods. During drifting phase a sedimentation process occurred at the front of the Banggai-Sula Microcontinent. This sediment is potentially source rock and reservoir rock. Meanwhile, during the drifting phase the study area is interpreted as located at the southern part of Banggai-Sula Microcontinent. This different tectonic setting will impact on the type of sedimentary rock, hence source rock and reservoir rock occurrence in the study area is still unclear. As source rock and reservoir rock within the study area are unclear, hydrocarbon explorations will be very risky. In order to reduce exploration risk, it is proposed to conduct geological and geophysical studies using the latest seismic data that was surveyed by PT. TGS – NOPEC and PT. ECI – PGS.
Environmental Impacts Of The Oil And Gas Platform Decommissioning R Desrina; Chairil Anwar; Tri Muji Susantoro
Scientific Contributions Oil and Gas Vol 36 No 2 (2013)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.36.2.766

Abstract

Many of the oil and gas installations in the Indonesian Sea are reaching the end of their economic production life. Typically, oil and gas fields have an economic life of 20 to 40 years and a decommissioning program will be required and predicted to peak during the period 2010-2020. Some of them are located in shallow water such as those around Pulau Seribu, Java Sea, and South China Sea; some others are in deeper water such those at Makasar Straits and Moluccas Sea. Many different opinions exist on the benefits and problems of a partial platform removal or a complete removal. For some reasons platforms would be a good fishing spot. On the other hands, an unseen hazard could be left behind by the platforms. Even a complete removal of the platforms is conducted but without proper clearing of the ocean floor, the unused platforms still can cause hazards. For the management of the seas outside the territorial waters, worldwide nations have historically entered into international agreements and conventions. These agreements and conventions that have been entered into under the umbrella of the United Nations are Geneva Convention, the United Nations Convention on the Law of the Sea (UNCLOS) and the International Maritime Organization (IMO) Guidelines. Nationally, there is little information concerning with the decommissioning project. This paper is intended to highlight options for decommissioning of offshore platforms, its environmental impacts, and regulations that could be referred to following the decommissioning proposal. The technological aspects of the structural decommissioning of platforms are beyond the scope of this paper.  
Oil Spill Pollution Detection Using Palsar Data In Timor Sea Tri Muji Susantoro; Suliantara Suliantara; Djoko Sunardjanto
Scientific Contributions Oil and Gas Vol 33 No 2 (2010)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.33.2.817

Abstract

The processing of Palsar imagery has been conducted for detecting an oil spill in Timor Sea. Three series of Palsar imageries i.e. Sept 2nd, Oct 3rd and Oct 6th, 2009 are used to analysis in this area. At September 2nd, 2009 based on Palsar Imagery, oil spill was detected around of Montara Platform. Oil spill seen appeared as dark tone The area that has been covered by oil spill is more than 100 km2. At September 24rd, 2009 oil spill was dispersed to North and West Montara Field. At October 3, 2009 showed that oil spill was detected in the north of Seba Coast, Sawu Island. Oil spill in this area clearly showed in Palsar Imagery base on a long dark lines. Oil spill at October 6th, 2009 were still dispersed in Timor Sea. Based on Palsar imagery, oil spill is identified in South Rote Island about 150 km long, appeared as dark lines in Palsar imagery