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All Journal International Journal Of Science, Technology & Management (IJSTM) Petro : Jurnal Ilmiah Teknik Perminyakan Journal of Geoscience Engineering and Energy (JOGEE) JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Journal of Earth Energy Science, Engineering, and Technology Jurnal Eksakta Kebumian
Benyamin
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation Other

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The Effect Of Leadership In Education Administrative Learning And Knowledge On Organization Commitments Of Early Children Education Unit In Medan City Kristianus; Benyamin; Paningkat
International Journal of Science, Technology & Management Vol. 2 No. 3 (2021): May 2021
Publisher : International Journal of Science, Technology & Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i3.207

Abstract

Along with the transition from the New order era to the Reformation era, the central government is committed to providing regional autonomy to district and city governments to manage regional potential, including the potential for education. After the central government gave regional autonomy to district and city governments, the Medan City Government gave autonomy to the head of the Early Childhood Education unit to manage the potential of Early Childhood Education to the maximum, but in reality the management was not optimal. The purpose of this study is to find a model of organizational commitment and to determine the influence between research variables. This research method is a quantitative research method using a survey approach. The study population was 750 people and the sample of this study was 238 people with an error rate of 5%. Sampling is non-probability sampling with a purposive sampling technique based on the provisions of the sample from the population developed by Isaac and Michael. The data collection technique for this research is a questionnaire instrument using a Likert scale and a test instrument using Merriam Webster's New Collegiate Distionary technique. The results of the descriptive analysis show that 235 or 98.74% of the Educational Administrative Knowledge variable tends to be in the low category, while the other variables tend to be in the high category. Furthermore, the results of the calculation of the total direct effect show that the Educational Administrative Knowledge variable on the Organizational Commitment variable is 0.2642 or 26.42%, while the total effect of other variables is low. Furthermore, the direct and indirect proportional, sporious and unanalyzed effect caused by these three variables is 66.02% and the influence of other variables is 33.98%. Furthermore, the research results of the path coefficient test show that all the path diagram coefficients are significant. Furthermore, the results of model testing indicate that the proposed model is fit with empirical data. Therefore, based on the results of this study it is suggested that the Head of the Medan City Education Office can apply this model so that 66.02% of the organizational commitment of the head of the Children's Education unit can be maximally realized.
The Effect Of Organization Culture, Rewards, Job Satisfaction And Job Stress On Lecturer’s Performance At UIN Ar-Raniry anda Aceh Iis Marsithah; Benyamin; Nasrun
International Journal of Science, Technology & Management Vol. 2 No. 3 (2021): May 2021
Publisher : International Journal of Science, Technology & Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i3.231

Abstract

The purpose of this study was to find out and examine: (1) the lecturer’s performance model built on associative causal relationships between exogenous variables and endogenous variables, (2) the effect of organizational culture to job satisfaction, (3) the effect of rewards to job satisfaction, (4) the effect of organizational culture to job stress, (5) the effect of rewards to job stress,(6) the effect of organizational culture to lecturer’s performance, (7) the effect of rewards to lecturer’s performance, (8) the effect of job satisfaction to lecturers performance, and, (9) the effect of job stress to lecturers performance. The population is all lecturer as many as 486 people. The research sample of 219 people was determined by the Slovin formula. Data collection is done by using a questionnaire with five answer choices. The sampling technique were used proportional random sampling. The instruments were used first tried out to respondent outside the sample to obtain validity and reliability instruments. Validity test uses Product Moment correlation, while to test its reliability with Alpha formula from Cronbach. Before testing the hypothesis, especially before the test is calculated, the requirements of the analysis include: normality data test and regression linearity test.The results showed (1) Obtained the lecturer’s performance model UIN Ar-Raniry Banda Aceh, (2) there is positive direct effect of organizational culture to job satisfaction 1,9%, (3) there is positive direct effect of rewards to job satisfaction 1,9%, (4) there is negative direct effect of organizational culture to job stres11,2%, (5) there is negative direct effect of rewards to job stress 2%, (6) there is positive direct effect of organizational culture to lecturer’s performance 7,9% include indirect effect through job satisfaction 0,6% and job stress 1,8%, (7) there is positive direct effect of rewards to lecturer’s performance 2,8% include indirect effect through job satisfaction 0,4% and job stress 0,7%,(8) there is positive direct effect of job satisfaction to lecturer’s performance 1,5%, and (9) there is positive direct effect of job stress to lecturer’s performance 3%.Based on the acceptance of the research hypothesis, it is found a fixed model that describes the structure of causal relationships between organizational culture, rewards, job satisfaction, job stress and lecturer’s performance at UIN Ar-Raniry Banda Aceh. The organizational behavior has bigger influence than the other variable to lecturer’s performance. The next variable was job stress, rewards, and job satisfaction has lowest influence than the other variable to lecturer’s performance.
ANALISIS KELAYAKAN PROYEK PEMBANGKIT LISTRIK ENERGI PANAS BUMI BERDASARKAN POTENSI DAN PERHITUNGAN KEEKONOMIAN MENGGUNAKAN METODE CAPITAL BUDGETING LAPANGAN “AC”, PROVINSI MALUKU UTARA Sekar Ayu Citrowati; Fajar Hendrasto; Benyamin; Nurkholis Hariyadi
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 2 (2022): JUNI
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (836.764 KB) | DOI: 10.25105/petro.v11i2.14197

Abstract

Penelitian ini dilakukan untuk menilai kelayakan dari suatu proyek pengembangan lapangan panas bumi “AC” pada Wilayah Kerja Panas Bumi Kab. Halmahera Selatan. Parameter yang digunakan yaitu perhitungan volumetrik untuk menentukan besarnya potensi panas bumi dan juga perhitungan keekonomian menggunakan metode capital budgeting serta parameter keekonomian yang digunakan untuk menentukan kelayakan proyek adalah Net Present Value (NPV), Internal Rate of Return (IRR), Discounted Payback Period dan Profitability Index. Hasil dari penelitian adalah potensi panas bumi sebesar 27,8 MW dengan kapasitas yang dikembangkan proyek pembangkit listrik energi panas bumi dengan sebesar 10 MWe. Karakteristik pada daerah penelitian didukung adanya aktifitas vulkanik yang disusun oleh batuann gunungapi pele dan gunungapi lansa serta didapatkan manifestasi berupa hotspring dan steam vent. Resistivitas pada sistem caprock sebesar <10 Ωm. Dalam analisis kelayakan finansial proyek pengembangan lapangan panas bumi diperlukan perhitungan drilling and proven resource, capex, opex dan projet cash flow. Dari hasil simulasi terhadap proyeksi cashflow proyek, diperoleh nilai indikator ekonomi untuk menentukan investasi dan pelaksaan proyek yang dihasilkan NPV 16.000.000 USD, IRR 12%, dengan nilai PI 3,66 proyek investasi akan diterima apabila nilai PI yang dihasilkan >1. Dapat disimpulkan bahwa secara finansial proyek investasi pengembangan lapangan panas bumi baru di lapangan “AC” adalah layak untuk dilaksanakan.
STUDI PALEOGEOGRAFI MENGGUNAKAN DATA SUMUR DAN FOSIL PADA CEKUNGAN JAWA TIMUR UTARA: PALEOGEOGRAPHIC STUDY BASED ON WELL AND FOSSIL DATA ON NORTH EAST JAVA BASIN Nainggolan, Richard Giovanni Nainggolan; Benyamin
Jurnal Eksakta Kebumian Vol. 3 No. 1 (2022): JURNAL EKSAKTA KEBUMIAN (JEK)
Publisher : Fakultas Teknologi Kebumian dan Energi, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jek.v3i1.16175

Abstract

Abstrak Maksud dilakukannya penelitian ini adalah untuk mengkorelasikan data bawah permukaan untuk analisis lingkungan yang berkembang pada daerah penelitian. Tujuan dilakukannya adalah untuk mengetahui lingkungan pengendapan bawah permukaan untuk selanjutnya dilakukan pencarian minyak dan gas bumi. Data yang digunakan adalah data sumur, data biostratigrafi, dan data log. Kemudian dilakukan korelasi, lalu membuat peta ssr dan peta lingkungan pengendapan. Hasil yang didapatkan adalah daerah penelitian dominan terbentuk pada lingkungan outer sublitoral dengan top Formasi terendapkan pada lingkungan outer sublitoral. Dapat disimpulkan bahwa kandungan sand semakin menebal ke arah timur yang cocok untuk dilakukan pengeboran di reservoarnya. Kata – kata kunci : fasies, paleogeografi, cekungan jawa timur utara   Abstract This study is conducted to correalate subsurface data to analyze the depositional environtment developed in the study area. The objective is to know the sub surface depositional environtment then to look for the oil and gas. The data used in this study are the well data, biostratigraphic data, and log data. After doing correlation method, then make a ssr map and the depositional environtment map. The results are this area mostly developed in outer sublitoral environtment and the top area is deposited in outer sublitoral environtment. The conclusion is the sand is become more abundant in the east area and is good to start the exploration. Keywords : facies, paleogeographic, north east java basin  
ANALISIS PETROFISIKA PADA LAPISAN D, H, DAN I, FORMASI DURI, LAPANGAN “TAN”, CEKUNGAN SUMATRA TENGAH: PETROPHYSICAL ANALYSIS IN D, H, AND I LAYERS, DURI FORMATION, “TAN” FIELD, CENTRAL SUMATRA BASIN Khamisah, Dinda Putri; Benyamin
Journal of Geoscience Engineering and Energy VOLUME 6, NOMOR 1, FEBRUARI 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v6i1.22293

Abstract

Penelitian ini bertujuan untuk menganalisis petrofisika di Formasi Duri, Cekungan Sumatera Tengah menggunakan data log dan core. Metode yang digunakan meliputi integrasi data log sumur (well log) dan data inti sumur (core) untuk mengidentifikasi karakteristik petrofisika dan sifat-sifat batuan reservoir. Data log diproses dan dianalisis untuk memperoleh informasi tentang litologi, porositas, saturasi air, dan permeabilitas. Sementara itu, data core digunakan untuk memvalidasi interpretasi log serta untuk mengevaluasi properti fisik dari contoh batuan. Hasil analisis menunjukkan Formasi Duri, Cekungan Sumatera Tengah memiliki nilai porositas efektif yaitu 8,34% – 34% dan nilai permeabilitas 2,26 mD – 4432,2 mD. Batuan yang dominan ditemui meliputi berbagai kombinasi antara batupasir dan shale dengan karakteristik greywacke. This study aims to analyze the petrophysical in Duri Formation, Central Sumatra Basin using log data and core data. The methods used include the integration of well log data and well core data to identify the petrophysical characteristics and properties of reservoir rocks. Log data are processed and analyzed to obtain information on lithology, porosity, water saturation, and permeability. Meanwhile, core data are used to validate log data interpretations and evaluate the physical properties of rock samples. The results of the analysis show that the Duri Formation, Central Sumatra Basin has a porosity value of 8,34% – 34% and a permeability value of 2,26 mD – 4432,2 mD. The dominant rocks encountered include various combinations of sandstone and shale with greywacke characteristics.
ANALISIS STRUKTUR GEOLOGI DAERAH TLAGA DAN SEKITARNYA, KECAMATAN GUMELAR, KABUPATEN BANYUMAS, PROVINSI JAWA TENGAH: GEOLOGICAL STRUCTURE ANALYSIS OF TLAGA AND SURROUNDING AREA, GUMELAR DISTRICT, BANYUMAS DISTRICT, CENTRAL JAVA PROVINCE Tara, Rifaldi; Benyamin
Jurnal Eksakta Kebumian Vol. 3 No. 2 (2022): JURNAL EKSAKTA KEBUMIAN (JEK)
Publisher : Fakultas Teknologi Kebumian dan Energi, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jek.v3i2.16072

Abstract

Abstrak Maksud dibuatnya makalah ini adalah untuk mengetahui struktur geologi pada daerah Tlaga..Sedangkan tujuan dibuatnya makalah ini adalah untuk mencari tau dari arah struktur geologi tersebut. Bahan yang digunakan pada makalah yaitu data data seperti strike dip dan breksiasi. Metodologi yang digunakan pada makalah ini yaitu menggunakan diagram rose dan stereonet. Setelah dilakukan analisis struktur geologi maka dapat disimpulan struktur yang ada di daerah tlaga  yaitu sesar geser dextral Samudra Kulon, sesar geser dextral Cipetir, dan sesar naik Nyangkokot. Berdasarkan data kekar, maka ditemukan bahwa arah tegasan utama yang menyebabkan sesar geser dextral kali Samudra Kulon adalah arah baratlaut-tenggara. Sesar ini terjadi pada litologi batu pasir kasar selang-seling batu pasir sedang dan batu pasir sisipan batu lempung, kemudian arah tegasan utama yang menyebabkan sesar geser dextral Cipetir adalah arah Barat Laut – Tenggara. Sesar ini terjadi pada litologi batupasir kasar selang-seling batupasir sedang. Kemudian arah tegasan utama yang menyebabkan sesar naik Nyangkokot adalah Barat Daya – Timur Laut.   Kata – kata kunci : struktur geologi, diagram rose, stereonet, sesar geser, sesar naik   Abstract The purpose of this paper is to find out the geological structure in the Tlaga area. Meanwhile, the purpose of this paper is to find out the direction of the geological structure. The materials used in this paper are data such as strike dip and breccia. The methodology used in this paper is using rose and stereonet diagrams. After analyzing the geological structure, it can be concluded that the existing structures in the lake area are Samudra Kulon dextral shear fault, Cipetir dextral shear fault, and Nyangkokot ascending fault. Based on joint data, it was found that the main stress direction causing the dextral shear fault of the Kulon Samudra River is the northwest-southeast direction. This fault occurs in alternating coarse sandstone lithology with moderate sandstone and sandstone interspersed with claystone, then the main stress direction causing the Cipetir dextral shear fault is in the Northwest - Southeast direction. This fault occurs in alternating coarse sandstone lithology with medium sandstones. Then the main stress direction that causes the Nyangkokot fault to rise is Southwest – Northeast.   Keywords : Geological structure, rose diagram, stereonet, strike slip fault, reverse fault
ASPEK PRAKATIKAL PEMODELAN GEOLOGI UNTUK SIMULASI RESERVOIR PADA LAPANGAN WAR FORMASI TALANG AKAR BAWAH Audia, Winona; Benyamin; Rini Setiati
Jurnal Eksakta Kebumian Vol. 3 No. 2 (2022): JURNAL EKSAKTA KEBUMIAN (JEK)
Publisher : Fakultas Teknologi Kebumian dan Energi, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jek.v3i2.16100

Abstract

Abstrak Dalam tahap pembuatan model geologi statik secara rinci, kita akan dijumpai dengan total cellular grid yang sangat besar sehingga memakan waktu dalam tahapan selanjutnya simulasi reservoir. Mengingat terkadang tebatasnya akses komputer yang kita gunakan. Untuk menangani masalah ini, dilakukan teknik upscaling grid secara vertikal atau lebih dikenal system layering (K), dengan tujuan agar nilai heterogenitas kualitas batuan secara lateral tidak berubah dan tetap mengacu pada model distribusi yang sesuai dengan konsep geologi asli. Proses upscaling ini guna mempercepat dalam tahap lanjutan simulasi reservoir tanpa mengubah sejarah geologi reservoir itu sendiri. Penelitian ini mengintegrasi data seismik, data sumur, dan data produksi serta metode geostatik untuk membuat fine grid dan coarse grid yang merepresentasikan model geologi dan perhitungan cadangan melalui proses inialisasi. Telah dihasilkan model reservoir W pada lapangan WAR dengan total fine grid sebesar 430.144 dan memiliki running time (8 jam) pada simulasi reservoir serta memiliki hasil perhitungan cadangan sebesar 18.94 MMSTB. Pada model coarse grid dihasilkan 2 opsi dengan running time lebih cepat yaitu, kurang lebih dari 30 menit dan menghasilkan perhitungan cadangan sebesar 18,36 MMSTB untuk model coarse grid_1 dan 18,22 MMSTB untuk model coarse grid _2. Meskipun fine grid dan coarse grid model memiliki volume inplace yang tidak jauh berbeda, namun proses penyelarasan histori produksi memerlukan justifikasi yang berbeda, dikarenakan adanya perbedaan nilai properti seperti porositas, permeabilitas, dan saturasi air pada tiap gridnya akibat upscale grid secara vertikal, yang menimbulkan adanya perbedaan kinerja aliran fluida di tiap model reservoir. Hasil history matching untuk fine grid model menunjukkan hasil yang paling representative dengan selisih kumulatif untuk water dan oil kurang dari 5%.   Kata kunci: Model Statik Geologi, Upscaling Grid, Simulasi Reservoir
PENENTUAN JARAK ANTARA STASIUN GEMPA DAN EPISENTER GEMPA PADANG, SUMATRA BARAT PADA 24 APRIL TAHUN 2023: DETERMINATION OF THE DISTANCE BETWEEN EARTHQUAKE STATIONS AND THE EPICENTRE OF THE EARTHQUAKE IN PADANG CITY, WEST SUMATRA ON APRIL 24, 2023 Mahardhika, Fajar; Benyamin
Journal of Geoscience Engineering and Energy VOLUME 6, NOMOR 2, AGUSTUS 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/

Abstract

Gempa bumi, yang sangat umum terjadi di daerah Kota Padang, menghasilkan gelombang-gelombang seismik seperti gelombang primer dan gelombang sekunder. Gelombang-gelombang tersebut dapat dicatat oleh seismogram yang digunakan pada stasiun gempa. Penentuan jarak antara beberapa stasiun gempa dengan episenter gempa di Kota Padang pada tanggal 24 April 2023 dilakukan melalui analisis data waktu tiba gelombang seismik pada masing-masing stasiun. Jarak relatif terhadap episenter dihitung berdasarkan perbedaan waktu tiba tersebut. Hasil analisis menunjukkan adanya variasi jarak antara setiap stasiun dan episenter. Tujuan penelitian adalah untuk mengetahui jarak antara episenter gempa dan stasiun gempa sehingga hasil tersebut dapat digunakan untuk mencari episenter gempa yang sesungguhnya. Earthquakes, which frequently occur in the Padang area, generate seismic waves such as Primary and Secondary waves. These waves can be recorded by seismograms installed at earthquake stations. The determination of distances between several earthquake stations and the epicentre of the earthquake in Padang on April 24,2023, is conducted through analysis of seismic wave arrival time data at each station. Relative distances to the epicentre are calculated based on the differences in these arrival times. The analysis results indicate variations in distances between each station and the epicentre. The objective of this study is to identify the distances between the epicentre and the earthquake stations, so that these results can be utilized to approximately locate the epicentre.
Modification of Total Alkaline-Silica Method for Naming Volcanic Rocks Benyamin; Muhammad Burhannudinnur; Suryo Prakoso; Mohamad Salsabila; Dwi Kurnianto
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 2 (2025): JEESET VOL. 8 NO. 2 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/rg3yrb97

Abstract

The use of the Total Alkaline-Silica (TAS) method from Maitre (2002) has been a very important object for scientists involved in the world of volcanology for years. Much literature shows that the use of this method is generally acceptable and well used for naming volcanic rocks, although for certain volcanic rocks such as lamprophyres, for example, there are still limitations in the use of this method. The TAS method requires the results of rock chemical analysis in the form of total Alkaline content which is the sum of Sodium Oxide (Na2O) and Potassium Oxide (K2O) on one side and total Silica content (SiO2) on the other side, which means that without the availability of chemical analysis results for both components, the TAS method cannot be used or the method can still be used by modifying the components of the chemical analysis results with other components, in this case it will be tried to replace it with the magnitude of various data from logging. The purpose of this study depends on the availability of logging data in the area to be studied in various variations such as Nuclear, Electrical and Acoustic Logs with various crossplots from the available logs. The results of the various crossplots are then validated using core rock data that has been named using petrographic analysis based on the naming of volcanic rocks using the classification commonly used in the discipline of volcanology.
PELATIHAN PEMBUATAN BRIKET UNTUK MASYARAKAT BELUM PRODUKTIF DI KEBON JERUK, JAKARTA BARAT Chusniyah, Dina Asmaul; Pratiwi, Reno; Benyamin; Akbar, Rizki; Sugiarti, Lisa; Abidin, Muhammad Zainal
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 5 No 1 (2023): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v5i1.14890

Abstract

One of the issues facing the planet is energy. Energy's significant role influences numerous local economic activities in society. To prepare for growing fuel prices, cheap, accessible alternative fuel is required. The strategy employed for this community service is socialization and training, and it is done offline (face-to-face) while still paying attention to the health program. This PkM task is broken down into multiple steps. Planning comes first, followed by gathering equipment and supplies, making briquette samples, and finally, implementing the strategy. The activity found that approximately 15 housewives participated in this PkM activity. Providing information about the energy sources needed in Indonesia and their use is part of this PkM's work program. The community service projects that have been completed are anticipated to have a beneficial impact on society and the environment, mainly on the locals of Gili Sampang Kebon Jeruk. The training participants were quite proactive during the activity, which can be proven from several questions to make alternative energy fuels good and maximum that the community can utilize. The PkM team and participants created a mutual agreement that synergizes with each other to develop alternative energy sources in the form of fuels that benefit the community.
Co-Authors Audia, Winona Chusniyah, Dina Asmaul Dwi Kurnianto Fachry Abda El Rahman Fajar Hendrasto Iis Marsithah Khamisah, Dinda Putri Mahardhika, Fajar Mohamad Salsabila Muhammad Burhannudinnur Muhammad Zainal Abidin Nainggolan, Richard Giovanni Nainggolan Nasrun Nurkholis Hariyadi Paningkat Rini Setiati Rizki Akbar, Rizki Sekar Ayu Citrowati Sugiarti, Lisa Suryo Prakoso, Suryo Tara, Rifaldi Yundari, Yundari