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All Journal Jurnal Offshore: Oil, Production Facilities, and Renewable Energy Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Aris Buntoro
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Cut-Off Determination Based On Well Log and Economics, Betung Field Jambi Sub-Basin, South Sumatera Basin Aisyah Indah Irmaya; Basuki Rahmad; Deddy Kristanto; Aris Buntoro
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol 6, No 2 (2022): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v6i2.1456

Abstract

The Betung Field is one of the oil and gas fields located in the Jambi Sub-Basin, South Sumatra Basin with the target of the Air Benakat Formation sandstone reservoir. The cut off value is determined based on the character of the reservoir to eliminate non-contributing rock volumes. Economically, the cut-off value of oil production can be calculated by oil prices and budgeted total costs. There are 4 layers (L-2, L-3, L-4 and L-5), where Layer 5 (L-5) is the research focus in the cut-off determination method. The methodology in this cut-off study used qualitative and quantitative analysis in three (3) wells out of ten (10) wells L-5 in the Betung Field. The primary data used are well logs, production data and economic data. The well log data is processed to obtain the petrophysical value of the wells. The petrophysical results will be analyzed and the cut-off will be determined for each well and layer in L-5. Production and economic data are processed to obtain cut-off clay content (Vclay) which aims to strengthen the cut-off results from petrophysical yields. Based on the results of calculations and analysis, layer five (1-5), the Betung Field has a cut-off clay content (Vclay) < 34.2%; porosity > 15.8%, water saturation < 83.3%. 
Batubara dan Serpih Karbonan Formasi Ngrayong, Daerah Sale, Kabupaten Rembang, Jawa Tengah Studi Kasus : Kajian Sedimentasi terhadap Karakteristik Mikroskopis Piritik Sulfur Rahmad, Basuki; Sugeng Raharjo; Yody Rizkianto; Aris Buntoro; Dita Antari Setyaningsih; Obrin Trianda
Retii Vol 18 No 1 (2023): Prosiding Seminar Nasional ReTII ke-18 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Penelitian ini membahas tentang sedimentasi batubara dan karakteristik mikroskopis sulfur lapisan batubara yang tersingkap di daerah Sale, Rembang, Jawa Tengah. Geologi regional daerah Rembang berada di Antiklinorium Rembang-Madura termasuk dalam cekungan belakang busur (back arc basin). Target formasi dalam penelitian ini adalah Formasi Ngrayong. Metoda penelitian yang dilakukan adalah adalah pengambilan sampel singkapan batubara dan serpih karbonan, kemudian dianalisa mikroskopis maseral dan mineral berdasarkan sayatan blok polished briquette. Singkapan batuan yang ditemukan di daerah telitian terdiri dari batubara, channel batupasir dan serpih karbonan. Hasil analisa pollen ditemukanfosil indeks Florschuetzia Trilobata dan Palmaepollenites Kutchensis umur relatif batubara Formasi Ngrayong Miosen Tengah diendapkan di lingkungan Upper Delta Plain dicirikan oleh hadirnya taksa freshwater pollen seperti Cephalomappa, Stemonurus, Calophyllum type, Verrucatosporites Usmensis, Macaranga dan Casuarina spp. Berdasarkan perubahan kolom air maka sistem sedimentasi batubara dan Serpih karbonan formasi Ngrayong mengalami perubahan dari high water dengan ciri kandungan vitrinite tinggi menuju low water dicirikan dengan kandungan vitrinite lebih sedikit. Perubahan pasang surut air laut di daerah transisi menyebabkan ion sulfat air masuk ke dalam rawa membentuk framboidal piritik sulfur. Peringkat batubara Formasi Ngrayong sub-bituminus (Rv 0,38-0,53)
Co-Authors Aisyah Indah Irmaya BASUKI RAHMAD Deddy Kristanto Dita Antari Setyaningsih sugeng raharjo Yody Rizkianto