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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): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.36.2.13

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.
HYDROCARBON POTENTIAL OF TOLO BAY MOROWALI REGENCY: QUALITATIVE ANALYSIS Suliantara; Tri Muji Susantoro
Scientific Contributions Oil and Gas Vol. 38 No. 1 (2015): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.38.1.234

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.
The Potential of Remote Sensing Data for Oil and Gas Exploration in Indonesia: a Review Tri Muji Susantoro; Suliantara; Agung Budi Harto; Herru Lastiadi Setiawan; Gatot Nugroho; Danang Surya Candra; Adis Jayati; Sayidah Sulma; M Rokhis Khomarudin; Rahmat Arief; Ahmat Maryanto; Yohanes Fridolin Hestrio; Kurdianto
Scientific Contributions Oil and Gas Vol. 46 No. 1 (2023): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.46.1.317

Abstract

Oil and gas are important commodities in Indonesia and remain the main source for energy in various sectors. Therefore, the government aim to produce 1 million barrels of oil per day (BOPD) by 2030. To achieve this goal, exploration work is needed to discover new reserves and maintain production in existing fields. This study reviews the experience of oil and gas exploration in Indonesia using remote sensing data and the potential of using remote sensing data for oil and gas exploration through surface anomalies. Surface anomalies are changes or deviations that occur on the surface as the result of the presence of oil and gas underneath. These anomalies included vegetation growing stunted, yellowing or dying, changes in the quantity and composition of clay minerals, iron oxide, increased concentrations of hydrocarbons, helium, radon, carbon dioxide, microbes, and the presence of paraffin dirt formation, as well as geomorphological changes. This study aims to assess and explain the capabilities of remote sensing data in Indonesia for oil and gas exploration. The results show that remote sensing can be used for the initial exploration of oil and gas by delineating areas of potential oil and gas traps based on topographical anomalies and geological mapping integrated with gravity data and increasing confidence in the presence of oil and gas in the subsurface based on surface anomalies. These results are expected that the usefulness of remote sensing can be used to support oil and gas exploration in Indonesia and can be recognized and used for oil and gas activities by utilizing existing methods and discovering methods for data processing and their applications.
Integrated Approach to Investigate the Potential of Asphalt/Tar Sand on Buton Island, Indonesia Bambang Widarsono; Djoko Sunarjanto; Tri Muji Susantoro; Suliantara; Herru L Setiawan; Panca Wahyudi; Sugihardjo; Mohamad Romli; Diana Dwiyanarti
Scientific Contributions Oil and Gas Vol. 46 No. 2 (2023): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.46.2.324

Abstract

Buton island as a potential area for conventional oil and gas, as well as asphalt/bitumen has long been the target of evaluation aimed at exploiting this potential, although to date no economic exploitation has been implemented. In this study, the potential of Buton asphalt/bitumen with mineable and in situ (non-mineable) status was studied and evaluated. In this study, qualitative and quantitative analysis have been carried out from Landsat 8 and Shuttle Radar Topography Mission (SRTM) data with the aim of identifying the presence of active faults and gravity due to orogenic processes. The lineament density pattern shows a general direction of NE-SW to NNW-SSE. The lineament process between satellite image data and gravity surveys helps efforts to identify the distribution of asphalt on Buton Island. Through combining distribution patterns of the Sampolakosa, Tondo, and Winto Formations, contain asphalt/bitumen, the study produces distribution of asphalt/bitumen accumulation in the region, both in surface/mineable and in situ categories. The 'best estimate' reserves obtained are 786.6 million barrels and 46 million barrels, respectively for asphalt/bitumen surface/mineable reserves and in situ/non-mineable reserves. It is hoped that this information regarding the potential/reserves of asphalt/bitumen on Buton Island may support efforts to exploit it
An Integrated Approach for Revisiting Basin-Scale Heavy Oil Potential of The Central Sumatera Basin Bambang Widarsono; Herru Lastiadi Setiawan; Tri Muji Susantoro; Suliantara; Jonathan Setyoko Hadimuljono; Desi Yensusminar; Julikah; Ongki Ari Prayoga
Scientific Contributions Oil and Gas Vol. 44 No. 1 (2021): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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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
A Preliminary Study on Heavy Oil Location in Central Sumatra using Remote Sensing and Geographic Information Sytem Suliantara; Tri Muji Susantoro; Herru Lastiadi Setiawan; Nurus Firdaus
Scientific Contributions Oil and Gas Vol. 44 No. 1 (2021): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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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.
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.