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All Journal Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Dadan DSM Saputra
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science

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Investigation of Polymer Flood Performance in Light Oil Reservoir: Laboratory Case Study Dadan DSM Saputra; Bayu D Prasetiyo; Hestuti Eni; Yudha Taufantri; Ghifahri Damara; Yusuf D Rendragraha
Scientific Contributions Oil and Gas Vol. 45 No. 2 (2022): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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The use of polymer solutions in the application of chemical EOR injection technology has a role in increasing oil recovery efforts by improving oil mobility in porous media. The addition of the polymer solution is expected to increase the viscosity value of the displacement fluid so that it can form a “piston-like” effect to increase the volumetric sweep efficiency of the light oil reservoir. The polymer used in this study was HPAM using 3 concentrations, namely 500 ppm, 1000 ppm, and 1500 ppm conducted at a temperature of 70 °C. The rheology test of the polymer included concentration vs temperature and shear rate vs viscosity. Thermal stability testing of polymer for 7, 14, 30, 60, and 90 days at 70 °C was done to determine the stability of the polymer solution. Filtration testing was conducted with the criteria of FR <1.2. The static adsorption test has been done with the standard limit of adsorption value <400 µg / gr. Polymer injectivity test using 3 variations of injection rates and coreflooding test were conducted to determine the reduction of Sor in reservoirs due to polymer displacement. From the polymer testing stage, it was found that HPAM polymers at 3 concentrations were compatible with the injection. This is indicated with the clear solution for 3 concentrations at room temperature and 70 °C. The rheology test results showed that the polymer solution with 3 concentrations was decreased in viscosity with the addition of the shear rate value. In the thermal stability test, the viscosity value of the HPAM with 500 ppm was relatively constant. The value of the FR for HPAM 500 ppm is 1.1, HPAM 1000 ppm is 1.07 and HPAM 1500 ppm is 1.03. The results of the static adsorption test showed the lowest HPAM value of 500 ppm was 156 µg/gr. In the injectivity test results, the resistance residual factor (RRF) values at injection rates of 0.3, 0.6, and 1 cc/min were 0.8, 1.04, and 1.12. The RRF value was close to 1, indicating that after injection of 500 ppm of HPAM tended to not experience plugging. Polymer flooding shows the oil recovery factor (RF) of water injection is 39% OOIP, and RF after polymer injection with 0.35 PV with flush water is 13.5% OOIP or 22% Sor. Knowing the behavior of HPAM polymer with various concentrations to be used for chemical EOR injection, it could provide advantages for future implementation in the light oil reservoir in Indonesia.
Source Sink Matching for Field Scale CCUS CO2-EOR Application in Indonesia Usman; Dadan DSM Saputra; Nurus Firdaus
Scientific Contributions Oil and Gas Vol. 44 No. 2 (2021): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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The carbon capture utilization and storage (CCUS) referred in this paper is limited to the use of CO2 to the enhanced oil recovery (CO2-EOR). The CCUS CO2-EOR technology can magnify oil production substantially while a consistent amount of the CO2 injected remains sequestrated in the reservoir, which is beneficial for reducing the greenhouse gas emission. Therefore, this technology is a potentially attractive win-win solution for Indonesia to meet the goal of improved energy supply and security, while also reducing CO2 emissions over the long term. The success of CCUS depends on the proper sources-sinks matching. This paper presents a systematic approach to pairing the CO2 captured from industrial activities with suitable oil fields for CO2-EOR. Inventories of CO2 sources and oil reservoirs were done through survey and data questionnaires. The process of sources-sinks matching was preceded by identifying the CO2 sources within the radius of 100 and 200 km from each oil field and clustering the fields within the same radius from each CO2 source. Each cluster is mapped on the GIS platform included existing and planning right of way for trunk pipelines. Pairing of source-sink are ranked to identify high priority development. Results of this study should be interest to project developers, policymakers, government agencies, academicians, civil society and environmental non-governmental organization in order to enable them to assess the role of CCUS CO2-EOR as a major carbon management strategy.
Lapangan Migas Potensial Sebagai CCUS-EOR Studi Kasus: Prospek Injeksi CO, di Sumatera Selatan M Romli; Sugihardjo; Djoko Sunarjanto; Suliantara; Nurus Firdaus; Dadan DSM Saputra
Lembaran Publikasi Minyak dan Gas Bumi Vol. 55 No. 3 (2021): LPMGB
Publisher : BBPMGB LEMIGAS

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Sumatera Selatan sebagai provinsi sumber energi perlu tetap dijaga kelestarian dan keberlanjutannya. Dua hal antara sumber energi dan menjaga kawasan berwawasan lingkungan, memunculkan ide mengoptimalkan Gas Co, sebagai hasil limbah PLTU untuk dikelola menjadi bermanfaat, dengan menginjeksikannya ke lapangan migas di Sumatera Selatan. Metodologi penelitian menggunakan analisis kualitatif dan kuantitatif data primer dan sekunder, baik data sumber dan target injeksi CO,. Hasil identifikasi data dilakukan analisis awal untuk menentukan lokasi terpilih di Sumatera Selatan. Survey lapangan berbasis Sistem Informasi Geografi di PLTU Simpang Belimbing dan sekitarnya guna menyusun Peta Network Clustering. Analisis buffer digunakan untuk mengetahui lokasi terbaik penempatan fasilitas integrasi CO,, distance analisis digunakan untuk mengetahui prioritas target berdasarkan jarak dari sumber, serta morfologi analisis digunakan untuk mengetahui fasilitas distribusi yang efektif bagi tiap pasangan sumber-target. Hasilnya diperoleh beberapa pasangan sumber-target yang secara jarak dan kebutuhan-ketersedian CO, mencukupi untuk dilakukan injeksi CO,-EOR. Alternatif skenario buffer zone dengan target Cluster Lapangan Migas PQR Sumatera Selatan, pada radius 100 km utamanya akan didukung CO, hasil PLTU Simpang Belimbing dan dua lapangan migas terpilih sebagai kandidat pada Klaster PQR. Jumlah isi minyak awal pada lapangan tersebut 365,850.00 MSTB, terdapat potensi produksi injeksi CO, sebesar 54,877.50 MSTB dan kebutuhan CO, untuk injeksi sebesar 21,951.00 MTon. Skenario radius 100 km akan ditambah dari Instalasi stasiun pengumpul gas Grisik dan Suban, dan seterusnya makin besar radius buffer akan banyak PLTU yang siap sebagai sumber CO,. Dilakukan pengukuran jarak datar yang sekaligus merupakan perhitungan panjang pipa dari lapangan migas ke sumber CO, terpilih, dalam radius 100 kilometer, minimum diperlukan pipa distribusi sepanjang 203.65 kilometer. Kelebihan penelitian ini terintegrasinya subsektor migas, mineral (batubara), dan energi guna menciptakan pengembangan energi hulu - hilir ramah lingkungan.
STUDI KELAYAKAN UNTUK IMPLEMENTASI INJEKSI CO2 SKALA PILOT DI LAPANGAN MINYAK A, SUMATERA SELATAN Dadan DSM Saputra; Sugihardjo; Edward ML Tobing
Lembaran Publikasi Minyak dan Gas Bumi Vol. 52 No. 1 (2018): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Injeksi CO2-Enhanced Oil Recovery (EOR) di lapangan minyak mature Indonesia untuk meningkatkan produksi minyak perlu segera diaplikasikan. Selain untuk meningkatkan produksi minyak, injeksi CO2-EOR juga digunakan untuk mengurangi emisi gas CO2 di atmosfer. Pemerintah perlu mengaplikasikan Carbon Capture Utilization and Storage (CCUS) untuk dapat mengurangi emisi gas rumah kaca (GRK) sesuai dengan RUEN dan INDC Indonesia yaitu sebesar 29% pada tahun 2030. Tujuan dilakukannya studi ini untuk mengkaji kelayakan dari proyek implementasi injeksi CO2 skala pilot di Lapangan Minyak A. Studi ini fokus pada studi kelayakan injeksi CO2 skala pilot di Lapangan Minyak A Lapisan Y Blok D di daerah Sumatera Selatan dimulai dari proses screening lapangan minyak untuk injeksi CO2, studi Geologi Geofisika dan Reservoir (GGR) serta analisis keekonomian yang mencakup skenario transportasi CO2 dari sumber CO2 ke lokasi injeksi. Dari hasil simulasi reservoir didapatkan bahwa injeksi CO2 secara dengan laju alir sebesar 150 ton per hari selama 5 tahun (dimulai dari awal 2017) dapat meningkatkan perolehan minyak menjadi 4,7% IOIP (dengan basecase 2% IOIP), sedangkan dengan menggunakan laju alir 75 ton per hari dapat meningkatkan sebesar 3,37% IOIP pada daerah prospek di Lapisan Y Blok D. Dari hasil analisis keekonomian, harga jual CO2 terendah diperoleh dari skenario II (transportasi menggunakan truk) sebesar US$48,13 per ton CO2 dan akan layak untuk diinjeksikan pada saat harga minyak lebih dari US$83 per barel.
Co-Authors Bayu D Prasetiyo Djoko Sunarjanto Edward ML Tobing Ghifahri Damara Hestuti Eni M Romli Nurus Firdaus Sugihardjo Suliantara Usman Yudha Taufantri Yusuf D Rendragraha