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All Journal Al-Madrasah: Jurnal Ilmiah Pendidikan Madrasah Ibtidaiyah Journal of Petroleum and Geothermal Technology International Journal Multidisciplinary Science Journal Mechanical Engineering
Untoro, Edi
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Humanities Earth & Planetary Sciences Education Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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EVALUATION OF THE SANDNESS OF THE NGRAYONG LAYER IN THE XYZ WELL OF PERTAMINA ASSET IV CEPU Untoro, Edi; Waas, Kristofol
International Journal Multidisciplinary Science Vol. 3 No. 2 (2024): June: International Journal Multidiciplinary
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijml.v3i2.1257

Abstract

Most oil and gas wells produce through sandstone formations deposited in marine or detrital environments. Marine sedimentary sands, in which most of the hydrocarbons are found, are often cemented with calcareous or siliceous minerals and may be heavily consolidated. In contrast, Miocene and younger sands are often unconsolidated or only partially consolidated with soft clays or silts. This formation, which is structurally weak, is unlikely to be able to withstand the movement of sand grains. When oils are produced at high flow rates, they can produce sands along with the liquid oil. The movement of fluid through the sandstone reservoir creates stresses in the sand grains due to differences in fluid pressure, fluid friction, and overburden pressure. If this stress exceeds the formation holding force, then the sand grains and fines can move and can be produced with oil liquid. Rapid changes in the liquid production rate can cause unstable conditions which can result in increased sand production. When an oil well begins to produce water, this will often be an indication of the start of sand production. Muecke[1], demonstrated that particle motion occurs in a multiphase system when the wetting phase begins to move. Even consolidated sandstone can be mechanically and chemically damaged over time as the reservoir is produced. The overburden stress on the sand grains will increase as the reservoir pressure decreases. The movement of water can dissolve the minerals that cement the sand grains and can change the production capacity of the formation fluid. Smooth migration can reduce permeability in the perforations. This can result in higher pressure drops in the wellbore and changes in formation stress. Formations cemented by calcite can be damaged by improperly designed acidification, and can result in increased production of sand.
Analisis Keterampilan Siswa dalam Membaca Melalui Kartu Kata Bergambar Kelas 2 SD Kanisius Baturetno Wonogiri Untoro, Edi; Putranto, Dwiyono
Al-Madrasah: Jurnal Ilmiah Pendidikan Madrasah Ibtidaiyah Al-Madrasah Vol. 9, No. 1 (Januari 2025)
Publisher : Sekolah Tinggi Ilmu Al-Qur'an (SIQ) Amuntai Kalimantan Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35931/am.v9i1.4013

Abstract

Kemampuan membaca merupakan keterampilan dasar yang sangat penting untuk dikuasai oleh siswa pada jenjang pendidikan dasar, karena menjadi fondasi bagi keberhasilan pembelajaran di berbagai bidang. Namun, di SD Kanisius Baturetno, Wonogiri, ditemukan bahwa beberapa siswa kelas 2 masih menghadapi kesulitan dalam mengenal kata, memahami makna, dan membaca dengan lancar. Hal ini disebabkan oleh kurangnya penggunaan media pembelajaran yang menarik dan sesuai dengan karakteristik siswa. Penelitian ini bertujuan meningkatkan kemampuan membaca siswa kelas 2 SD Kanisius Baturetno menggunakan metode kooperatif tipe Team Games Tournament (TGT), dengan menggunkan model Penelitian Tindakan Kelas (PTK). dilakukan dalam dua siklus yang melibatkan perencanaan, tindakan, observasi, dan refleksi, mengikuti model Kurt Lewin. Pada siklus I, 60% siswa mencapai ketuntasan, sementara 40% masih kesulitan. Setelah evaluasi, siklus II dilaksanakan dengan penekanan pada interaksi aktif dan diskusi kelompok, menghasilkan 100% ketuntasan. Pembelajaran dengan metode TGT dan kartu kata bergambar efektif meningkatkan keaktifan dan pemahaman siswa, menciptakan lingkungan pembelajaran yang mendukung perkembangan keterampilan membaca. Hasil penelitian ini menunjukkan bahwa pendekatan pembelajaran interaktif yang fokus pada kebutuhan siswa dapat secara signifikan meningkatkan kemampuan membaca pada tahap awal pendidikan.
OPTIMASI PRODUKSI SUCKER ROD PUMP PADA SUMUR HCP LAPANGAN PSN Pasanea, Hanadry Charlin; Untoro, Edi; Lekatompessy, Roy R.
Journal Mechanical Engineering Vol. 3 No. 1 (2025): APRIL
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v3i1.3305

Abstract

Oil and gas are important resources that every country must fulfill and Indonesia, despite being a producer, has not been able to meet domestic demand. In field operations, wells do not always produce optimally, so an evaluation and optimization of pump performance is needed to produce optimal production rates. Research on the evaluation of the Sucker Rod Pump at Well M has been carried out by Untoro, E & Saleky, H (2023), obtained the results of the flow rate (Qmax) of 945.403 Bfpd, the current Q of 236.63 Bfpd, pump displacement (v) of 792.091091 Bfpd, and pump volumetric efficiency of 29.87497%. Thus, from the evaluation results, this research will optimize the Sucker Rod Pump, with the aim of obtaining Sucker Rod Pump optimization results to obtain the optimal production rate. Optimization was carried out by changing the pump SPM from 6 SPM to 8 SPM and the pump stroke length from 150 in to 145 in, so that the production rate increased from the previous 236.63 Bfpd to 355,3 Bfpd, and the pump volumetric efficiency increased to 34,77%. Keywords: Sucker Rod Pump, Optimization, Artificial Lift
The Selection of Optimal Gas Production Rate using Dynamic Reservoir Simulation in Field X Pratama, Rahmad Laksamana; Nirmala, Gerry Sasanti; Untoro, Edi; Sugiantoro, Jatmianto Jayeng; R.A, Muhammad Ghazian
Journal of Petroleum and Geothermal Technology Vol. 5 No. 1 (2024): May
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v5i1.11084

Abstract

Indonesian government has targeted a gas production rate of 12 BSCFD by 2030 to balance the energy demands and the carbon emission reduction. To achieve this goal, a comprehensive evaluation of a gas field will be carried out regarding Recovery Factor, Stable Production Period (Plateau Time), Total Production Period, and Profits using simulation programme. Dynamic Reservoir Simulation is an integrated field development simulation that combines physics, mathematics, reservoir engineering, and computer programming to analyze and predict the wells performance or how fluid flows through reservoir rocks to the surface over time under various operating conditions. There are stages in the simulation include Reservoir Model Creation, Initialization, History Matching, and Production Performance Forecasting. This research is a continuation of static reservoir modeling research done by LEMIGAS, which started by reinitializing the model and ended by forecasting the production performance of field X using several gas production flowrate scenarios to find out the optimal gas production flowrate for Field X in ten years period. The simulation result showed that the best gas production flowrate for a ten-year period is 3 mmscfd. It gives 78,505% recovery factors, with cumulative profit of $40,915,872 USD over a plateau period of 6.6 years.
Co-Authors Dwiyono Putranto Gerry Sasanti Nirmala Lekatompessy, Roy R. Pasanea, Hanadry Charlin Pratama, Rahmad Laksamana R.A, Muhammad Ghazian Sugiantoro, Jatmianto Jayeng Waas, Kristofol