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LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Published by LEMIGAS
ISSN : 20893396     EISSN : 25980300     DOI : DOI: https://doi.org/10.29017/LPMGB.60.1.2018
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LPMGB aims the dissemination of information on research activities, technology engineering development and laboratory testing in the oil and gas field. Manuscripts in English are accepted from all in any institutions, college and industry oil and gas throughout the country and overseas.
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Articles 5 Documents
 1 
Search results for , issue "vol 60 no 2 (2026)" : 5 Documents clear
Analisis Lingkungan Pengendapan Batubara Terhadap Kandungan Total Sulfur Batubara Di Pt Baturona Adimulya, Kabupaten Musi Banyuasin, Sumatra Selatan Ismi Nur Azizah; Hari Wiki Utama; Jarot Wiratama
Lembaran publikasi minyak dan gas bumi Vol 60 No 2 (2026)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.60.2.1903

Abstract

PT Baturona Adimulya operates an open pit mining system. Field conditions indicate variations in coal quality that influence the overall quality of the coal. This study aims to analyze the relationship between the coal depositional environment and the distribution of total sulfur content, as well as to assess the effect of calorific value on moisture content, ash content, and total sulfur. The study uses petrographic (maceral), ultimate and proximate analysis, as well as interpretation based on the Tissue Preservation Index (TPI) and Gelification Index (GI) methods. The results show that seams S and T are dominated by vitrinite macerals consisting of Telocolinite (Tc) 
KARAKTERISASI RESERVOIR PADA FORMASI AIR BENAKAT MENGGUNAKAN SEISMIK ATRIBUT SERTA PENENTUAN SUMUR USULAN DI LAPANGAN “X” SUB-CEKUNGAN JAMBI Elsa Laiyanti; Bagus Adhitya; Juventa; Muhammad Subhan
Lembaran publikasi minyak dan gas bumi Vol 60 No 2 (2026)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.60.2.1946

Abstract

Jambi Sub-Basin is one of the prospective areas for oil and gas exploration in Indonesia. However, the reservoir interval in the study area is thinner than the vertical resolution of the seismic data, making it difficult to identify using conventional seismic interpretation methods. The study area is located within the Air Benakat Formation. This study applies seismic attribute analysis to characterize thin reservoir intervals that are difficult to resolve using conventional methods. The objectives of this study are to characterize the reservoir based on seismic attribute responses and to identify prospective locations for proposed wells in the X Field, Jambi Sub-Basin. Four seismic attributes, namely RMS amplitude, sweetness, envelope, and instantaneous frequency, were integrated to provide a comprehensive interpretation of reservoir characteristics. RMS amplitude and envelope attributes were used to identify high-amplitude zones and lithological boundaries, while sweetness and instantaneous frequency assisted in differentiating potential reservoir zones from non-reservoir intervals. The integration of these attributes enables the identification of zones associated with variations in lithology, porosity, and potential hydrocarbon occurrence. Based on the integration of depth maps and seismic attributes for RES#11 and RES#3, three proposed wells were identified within Prospects A, B, and C in the southwestern part of the field, at elevations ranging from 960 to 1,530 m. These prospects are associated with faults that may have acted as hydrocarbon migration pathways. The integrated seismic attribute analysis indicates significant hydrocarbon potential in the study area and provides a basis for identifying prospective drilling locations in the X Field.
Evaluasi Kinerja Kapal Floating Storage Biodiesel Balikpapan: Analisis Berth Occupancy Ratio, Utilisasi Tangki, dan Keberlanjutan  Junaidi; A.R. Indra Tjahjani; I Nyoman Teguh Prasidha; Cahyo Setyo Wibowo
Lembaran publikasi minyak dan gas bumi Vol 60 No 2 (2026)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.60.2.2133

Abstract

Kenaikan mandatori biodiesel indonesia yang terus mengalami peningkatan hingga saat ini sudah B40 dan rencana menuju B50 menuntut sistem distribusi yang sanggup menjaga kontinuitas pasokan, terutama di Indonesia Timur yang masih kekurangan tangki penyimpanan darat. Penelitian ini mengevaluasi kinerja Kapal Floating Storage Balikpapan sebagai simpul penyimpanan dan distribusi biodiesel pada periode 2020 sampai 2025. Pendekatan yang digunakan adalah kuantitatif deskriptif evaluatif dengan mengolah data operasional kapal, serta data produksi dan distribusi biodiesel nasional. Evaluasi difokuskan pada kinerja operasional melalui Berth Occupancy Ratio dan Tank Occupancy Rate, serta keberlanjutan pemanfaatan kapal seiring kenaikan kadar percampuran menjadi B50. Hasil penelitian memperlihatkan kinerja yang semakin membaik, ditandai kenaikan Berth Occupancy Ratio dari 44,1 menjadi 65,9 persen dan pemulihan utilisasi tangki ke 64,3 persen pada 2025 setelah anomali pada 2023 akibat kapal berkapasitas besar. Proyeksi menunjukkan Berth Occupancy Ratio berpotensi melampaui ambang 75 persen pada 2027 sejalan dengan tekanan permintaan menuju B50. Pemanfaatan kapal Floating Storage Balikpapan masih layak dipertahankan dan dioptimalkan selama infrastruktur tangki darat belum memadai.
Evaluasi Kesesuaian Demulsifier Y sebagai Pengganti Demulsifier X pada Crude Oil Lapangan Minas Berdasarkan Water Separation dan Basic Sediment and Water (BS&W) Samsinar Sri Ningsih; Maulana Hardi; Tyas Kuswardani; Erik Indra Putra
Lembaran publikasi minyak dan gas bumi Vol 60 No 2 (2026)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.60.2.2159

Abstract

Penelitian ini bertujuan mengevaluasi kecocokan penggantian Demulsifier X dengan Demulsifier Y pada crude oil Lapangan Minas melalui pengujian water separation dan Basic Sediment and Water (BS&W). Pengujian dilakukan menggunakan metode bottle test pada suhu 79,4°C (175°F) dengan variasi konsentrasi 0, 50, dan 100 ppm. Hasil pengujian menunjukkan bahwa seluruh perlakuan demulsifier menghasilkan kualitas antarmuka Loose Rag (LR), sedangkan sampel blank menunjukkan Tight Rag (TR). Pada konsentrasi 100 ppm, Demulsifier Y menghasilkan water separation sebesar 80%, lebih tinggi dibandingkan Demulsifier X sebesar 76%. Analisis BS&W menunjukkan bahwa Demulsifier X, Y, dan campuran Demulsifier X–Y menghasilkan nilai BS&W 0,0%. Hasil penelitian menunjukkan bahwa Demulsifier Y mampu memberikan kinerja pemisahan yang setara bahkan lebih baik dibandingkan Demulsifier X serta jika terjadi pencampuran dengan Demulsifier X tidak menurunkan efektivitas pemisahan minyak dan air. Dengan demikian, Demulsifier Y layak digunakan sebagai pengganti Demulsifier X pada Lapangan Minas.
An Evidence-Constrained Four-Domain Exploration Framework for Rare Earth Elements in The Bangka Belitung Tin-Granite System Aly Rasyid; Edy Soesanto; R. Andy Erwin Wijaya
Lembaran publikasi minyak dan gas bumi Vol 60 No 2 (2026)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.60.2.2169

Abstract

Rare earth element (REE) enrichment in the Bangka Belitung tin province occurs in genetically and technologically distinct materials that require different exploration and processing tests. This study develops an evidence-constrained framework that integrates fresh granite, weathered granite, placer/alluvium, and tin-processing residues without merging non-comparable geochemical values. The analysis separates primary accessory-mineral-hosted, residual mineral-grain, ion-exchangeable clay-associated, mechanically concentrated, and anthropogenically concentrated REEs. Site-specific datasets were evaluated by sample medium, analytical basis, mineral host, spatial support, process diagnosis, recovery evidence, and U-Th/NORM risk. Weathered profiles show systematic enrichment toward lower horizons: reported total REE concentrations increase from 156-188 to 196-268 ppm at Toboali and from 230-330 to 342-450 ppm at Air Gegas. Mineralogical studies identify monazite as the principal Ce-rich light-REE host and xenotime as a Y-heavy-REE host across primary, placer, concentrate, and tailings materials. Diagnostic leaching from South Bangka demonstrates that part of the REE inventory is extractable, but strong-acid recoveries cannot be generalized as evidence of low-intensity ion-exchange recovery. The ordinal screening assigns weathered granite the highest geological prospectivity but only moderate evidence confidence; tailings and placers remain attractive near-surface domains with greater heterogeneity and radiological uncertainty. Remote sensing is retained as a proxy for regolith, drainage, and disturbed ground, not as direct REE detection. The framework provides a reproducible basis for prioritizing field verification while preventing conceptual prospectivity from being misreported as a resource or economic valuation.

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