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All Journal JOURNAL OF EARTH ENERGY ENGINEERING Jurnal Offshore: Oil, Production Facilities, and Renewable Energy Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti Jurnal AKAL: Abdimas dan Kearifan Lokal JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Journal of Earth Energy Science, Engineering, and Technology Jurnal Eksakta Kebumian
Rakhmanto, Pri Agung
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SCREENING CRITERIA SURFAKTAN NaLS AMPAS TEBU PADA INTERMEDIATE CRUDE OIL Pradhana, Renato Aditya Patria; Fathaddin, M. Taufiq; Setiati, Rini; Prakoso, Suryo; Rakhmanto, Pri Agung; Sumirat, Iwan
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 8, Nomor 2, Juli 2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v8i2.15752

Abstract

Tujuan Screening criteria adalah untuk mengetahui kecocokan surfaktan NaLS ampas tebu sebagai fluida injeksi terhadap sampel minyak intermediate. Metode yang digunakan pada screening criteria ini adalah uji laboratorium meliputi uji aqueous stability, uji perubahan fasa, uji emulsi, uji tegangan antar muka (IFT) dan kestabilan thermal. Hasil screening criteria surfaktan NaLS ampas tebu terhadap sampel intermediate crude oil menyatakan bahwa surfaktan NaLS ampas tebu tidak menggumpal dan tetap jernih, sehingga memenuhi ketentuan untuk uji selanjutnya. Surfaktan NaLS ampas tebu ini mampu membentuk emulsi fasa tengah sebesar 10% dan stabillitas thermal yang cukup baik dengan nilai IFT 4,4 – 4,9 mN/m. Dengan demikian dapat disimpulkan bahwa surfaktan NaLS ampas tebu telah memenuhi kriteria baik dengan sampel intermediate crude oil dan dapat digunakan sebagai fluida injeksi dalam proses Enhanced Oil Recovery.
PENYULUHAN DAN PELATIHAN PEMASANGAN PANEL SURYA SEBAGAI ENERGI ALTERNATIF BAGI MITRA PONDOK PESANTREN NH, BOGOR Mardiana, Dwi Atty; Rakhmanto, Pri Agung; Kosasih, Andri; Permata Sari, Dianie
Jurnal AKAL: Abdimas dan Kearifan Lokal Vol. 5 No. 2 (2024): Jurnal AKAL : Abdimas dan Kearifan Lokal
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/akal.v5i2.20302

Abstract

Pondok pesantren NH, terletak 45 km dari kota Bogor, sering mengalami kendala kelistrikan pada malam hari, terutama saat cuaca hujan, sementara kegiatan pesantren masih berlangsung hingga malam. Pengenalan tentang energi matahari sebagai energi hijau sekaligus energi alternatif diusulkan sebagai solusi untuk mengatasi masalah tersebut. Kegiatan pengabdian kepada masyarakat dilakukan dalam tiga tahap: observasi kondisi dan permasalahan mitra pondok pesantren, perancangan model dan metode, pelaksanaan kegiatan penyuluhan tentang pemanfaatan panel surya dan lampu surya sebagai solusi masalah energi listrik di pedesaan dan pelatihan pemasangan teknologi panel surya hingga menghasilkan sumber listrik. Hasil kegiatan menunjukan adanya peningkatan pengetahuan dan keterampilan mitra dengan secara langsung memanfaatkan energi surya menjadi sumber listrik untuk mengatasi permasalahan mitra di lingkungan pesantren.
Characterization of Porang and Xanthan Gum Solutions for Polymer Flooding Sutiadi, Andrian; Siahaya, Jacob; Maulida, Fajri; Mardiana, Dwi Atty; Fathaddin, Muhammad Taufiq; Setiati, Rini; Rakhmanto, Pri Agung; Irawan, Sonny
Journal of Earth Energy Engineering Vol. 13 No. 2 (2024)
Publisher : Universitas Islam Riau (UIR) Press

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Porang tubers contain glucomannan which is used in various industries. Porang is a biopolymer that has the potential to be applied in polymer flooding in oil reservoirs. In this research, a combination of porang and Xanthan gum was used for displacing oil in the laboratory. The samples analyzed varied with polymer concentrations of 2000, 4000, and 6000 ppm respectively for porang solution, Xanthan gum, and a mixture of porang and Xanthan gum. The salinity of the formation water used in this research was 6000, 12000 and 18000 ppm. The experiment aimed to observe the characteristics and performance of porang and Xanthan gum including testing for compatibility, viscosity, adsorption and sandpack flooding. Based on the test results, all samples were compatible. The application of a mixture of porang and Xanthan gum provided lower adsorption compared to the application of only Xanthan gum. The highest reduction in adsorption value given was 3.545 mg/gr. The highest viscosity and additional recovery factor were given by a mixture of porang and Xanthan gum with a concentration of 6,000 ppm and a salinity of 18,000 ppm, namely 284.72 cP and 16.1%, respectively.
SIMULASI PENGARUH TEMPERATUR TERHADAP VOLUME KONDENSAT DI KONDENSAT STABILIZER UNIT: STUDI KASUS LAPANGAN GAS X JAWA TIMUR Valentino, Boy Candra; Setiati, Rini; Mardiana, Dwi Atty; Rakhmanto, Pri Agung; Fathaddin, Muh. Taufiq; Prakoso, Suryo
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 9, Nomor 2, Juli 2024
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v9i2.19152

Abstract

Di Indonesia, penurunan produksi minyak dan gas bumi alamiah beriringan dengan peningkatan kebutuhan bahan bakar, menuntut optimasi operasi di lapangan migas. Studi simulasi ini memiliki fokus pada pengaruh temperature Condensate Stabilizer Unit, terhadap volume kondensat yang dihasilkan untuk meningkatkan produksi minyak bumi dalam rangka memenuhi kebutuhan energi migas di Indonesia. Tujuan penelitian ini adalah untuk mengetahui pengaruh antara nilai temperature dengan volume kondensat yang dihasilkan pada jenis minyak bumi dengan API 42,90C, Spec Gravity@600F 0,8114, Pour point 240C Metode penelitian yang digunakan adalah simulasi uji optimalisasi proses dengan perangkat lunak Aspen Hysys Ver 12.1 menggunakan metode Peng and Robinson dengan batasan temperatur mulai dari 1380C sampai dengan 1980C dengan interval 50C. Hasil penelitian uji optimalisasi proses, Pressure dan Temperatur di dalam model di validasi dengan real data plant menunjukkan perbedaan nilai margin error di rentang 0,05 - 1,75%. Kemudian temperatur dalam setiap 10C temperatur yang diturunkan/dinaikkan akan menghasilkan 0,3 Bbls/d kondensat. Dengan demikian dapat disimpukan bahwa pengaruh temperatur terhadap volume kondensat yang dihasilkan memiliki pengaruh yang sangat signifikan untuk minyak dengan karakteristik 42,90C, Spec Gravity@600F 0,8114, Pour point 240C.
Pemodelan dan Prediksi Densitas Larutan Porang dan Xanthan Gum dengan Menggunakan Model-Model Machine Learning Sutiadi, Andrian; Dardjat, Izumi Wicaksono; Arkaan, Muhammad Dzaki; Mardiana, Dwi Atty; Fathaddin, Muhammad Taufiq; Rakhmanto, Pri Agung; Pramadika, Havidh; Ristawati, Arinda
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 8 No. 2 (2024): 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.v8i2.2085

Abstract

One physical characteristic that is helpful in comprehending the physical and chemical characteristics of a solution is the density of the polymer solution. Its primary function is to ascertain the polymer's concentration in solution. The density value can be used to estimate the polymer concentration in solution. The study of the flow and viscosity of polymer solutions also makes use of the interaction between the polymer and solvent. This study aims to establish a relationship between the density of porang and xanthan gum solutions and the percentage of porang, polymer content, and salinity. Machine learning models, like the Adaptive Neuro Fuzzy Inference System (ANFIS) and Artificial Neural Network (ANN), are used for modeling. The creation of these machine learning models used 471 digitized data of density curves of porang solution, xanthan gum solution, and porang-xanthan gum mixture solution. The training, validation, and testing processes of the ANN and ANFIS models provided average correlation coefficients of 0.99955 and 0.99999, respectively. Comparison between the estimates of the ANN and ANFIS models and the measurement results of 27 porang and xanthan gum solutions provided accurate results with correlation coefficients of 0.99893 and 0.99996, respectively.    
Evaluation of Indonesia's Upstream Oil and Gas Fiscal Terms in Comparison to Malaysia's Enhanced Profitability Terms (EPT)Case Study of Block X Exploration Field Halim, Yosep; Rakhmanto, Pri Agung; Mardiana, Dwi Atty; Irawan, Sonny; Lalaina, Ramefivololona Hanitra; Aimé, Rajomalahy Julien; Fifaliana, Razakamampianina Valisoa; Harifenitra, Ravololoarimanana
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 1 (2025): JEESET VOL. 8 NO. 1 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/hsn4wb37

Abstract

Oil and gas sector is one of the main drivers of Indonesia's economy. Thus, it is important to ensure the attractiveness of Indonesia's Production Sharing Contracts (PSC) fiscal terms for investment, especially in comparison with neighboring countries. In 2021, Malaysia introduced the Enhanced Profitability Terms (EPT) PSC, which is considered to provide a better and more reasonable return for oil and gas contractors. The purpose of this study is to analyze and compare the attractiveness of the Cost Recovery and Gross Split fiscal terms in Indonesia with the EPT fiscal terms in Malaysia, based on economic indicators, including their sensitivity. This study uses a quantitative approach by calculating the economic viability of fields (NPV, IRR, POT), their sensitivity, the range of %CT and %GT, and the profitability characteristics of an exploration block field (Block X). From the evaluation and comparison conducted (specific to the assumed case), it was concluded that the Indonesian Gross Split PSC and the Malaysian EPT PSC have improved economic indicators compared to the Indonesian Cost Recovery PSC. Therefore, the Indonesian Gross Split PSC and the Malaysian EPT PSC generally have better economic indicators, including sensitivity to changes in oil prices, operating costs, and production levels, compared to the Indonesian Cost Recovery PSC. To obtain a more complete picture and enrich the evaluation of these fiscal terms, further analysis can be conducted by considering business risks of contractors, simulations with the application of incentives, and other factors that can affect investment decisions.
EVALUASI FISCAL TERM HULU MIGAS INDONESIA DAN BEBERAPA NEGARA DI KAWASAN ASIA TENGGARA: EVALUATION OF UPSTREAM OIL AND GAS FISCAL TERM IN INDONESIA AND SEVERAL COUNTRIES IN SOUTHEAST ASIA Sariallo, Gabriela Martines; Mardiana, Dwi Atty; Rakhmanto, Pri Agung
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.v3i2.16083

Abstract

Abstrak Pemberlakuan fiscal term pada industri hulu migas di suatu negara dilaksanakan dengan harapan dapat mempercepat proses pengambilan keputusan dan membuat daya tarik investasi hulu migas lebih menarik bagi investor. Penelitian ini mengevaluasi fiscal term disuatu negara pada suatu wilayah yang digunakan di Indonesia, Malaysia, Thailand, dan Vietnam untuk mengetahui tingkat daya tarik dari fiscal term tersebut. Menggunakan beberapa indikator government take (GT) dan  front loading index (FLI) dan composite score (CS) akan dianalisis peringkat daya tarik fiskal dari lima skema fiskal sehingga investor dapat mempertimbangkan skema fiskal mana yang paling menarik untuk investasinya. Hasil analisis keekonomian berdasarkan indikator keekonomian IRR, NPV, POT, PI dan GT menunjukan bahwa skema fiskal yang paling menarik untuk lapangan baru develop onshore adalah skema fiskal PSC gross split Indonesia, kemudian untuk lapangan mature onshore adalah skema fiskal PSC Vietnam, dan untuk lapangan offshore adalah skema fiskal konsesi Thailand. Sedangkan hasil pemeringkatan daya tarik menunjukan bahwa skema PSC lebih menarik untuk diterapkan pada lapangan onshore dan konsesi pada lapangan offshore.   Kata kunci : fiscal term, front loading index, composite score   Abstract The implementation of fiscal terms in the upstream oil and gas industry in a country is carried out with the hope of accelerating the decision-making process and making the attractiveness of upstream oil and gas investment more attractive to investors. This study evaluates fiscal terms in a country in a region used in Indonesia, Malaysia, Thailand, and Vietnam to determine the attractiveness of the fiscal terms. Using several indicators of government take (GT) and front loading index (FLI) and composite score (CS), the fiscal attractiveness ranking of five fiscal schemes will be analyzed so that investors can consider which fiscal scheme is most attractive for their investment. The results of the economic analysis based on the economic indicators of IRR, NPV, POT, PI and GT show that the most attractive fiscal scheme for newly developed onshore fields is the Indonesian gross split PSC fiscal scheme, then for mature onshore fields is the Vietnamese PSC fiscal scheme, and for offshore fields is the Thai concession fiscal scheme. Meanwhile, the results of the attractiveness ranking show that the PSC scheme is more attractive to be applied to onshore fields and concessions to offshore fields.   Keywords: fiscal term, front loading index, composite score
PEMBUATAN EKOENZIM DARI LIMBAH KULIT BUAH NANAS PADA MASYARAKAT PEDULI LINGKUNGAN DI DESA CIGOMBONG, BOGOR Rakhmant, Pri Agung; Setiati, Rini; Besila, Qurotu Aini; Syavitri, Dewi; Rakhmanto, Pri Agung; Widiyatni, Harin
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.v5i1.14031

Abstract

Eco enzyme is a product of organic waste derived from vegetables and fruits, fermented with sugar in a container and allowed to stand for three months to become an active solution. The use of eco-enzyme as a natural cleaning solution contributes to protecting the environment because it treats household-scale organic waste. The community service program aims to enhance Cigombong Village's potential with a community that cares about the environment that has been formed. The eco enzyme can be used to clean all areas of the house, clothes, vegetables, and fruits, fertilize plants, eliminate pests, and improve the quality of plants; the eco enzyme is also very effective in repelling plant pests. The eco enzyme can also be utilized to stimulate plant hormones to enhance fruit and vegetable quality and improve crop yields. Making eco enzymes can be done simply, using easily available equipment. The raw materials for eco enzyme consist of brown sugar, water, and fruit peel waste in a ratio of 1:10:3. The container used for the eco enzyme is a plastic jar with a lid. A training program for making eco enzymes from fruit and vegetable peel waste can protect the environment, increase community plantation yields and make Cigombong village a fruit tourism village.
SOSIALISASI DIGITAL MARKETING PADA MASYARAKAT PEDULI LINGKUNGAN Setiati, Rini; Besila, Qurotu Aini; Syavitri, Dewi; Rakhmanto, Pri Agung; Muayyad, Deden Misbahudin; Widiyatni, Harin
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 5 No 2 (2023): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v5i2.17490

Abstract

Masyarakat peduli lingkungan (Mapeling)  di Cigombong adalah masyarakat yang telah banyak melakukan segala upaya untuk mengolah limbah lingkungan mareka, agar lingkungan bersih dan sehat. Salah satu kegiatan yang telah disosialisasikan dan diterapkan adalah pengolahan kulit buah dan sayuran menjadi eco enzyme. Produk ini dapat dipakai untuk  keperluan di rumah tangga sendiri. Selebihnya dapat di jual untuk meningkatkan pendapatan keluarga. Salah satu metode yang dapat disosialisasikan dan diajarkan kepada masyarakat adalah pemesaran secara digital (digital marketing) yang sekarang marak beredar di masyarakat. Transaksi perdagangan jual beli dapat dilakukan tanpa kepasar atau tempat berjualan. Dengan berbekal telepon gengam (handphone) sudah bisa digunakan untuk membeli atau mempromosikan sesuatu sebagai produk dagangan. Pengguna pemasaran digital ini harus memahami salah satu system social media yang akan digunakan untuk berdagang. Pelaksanaan sosialisasi digital marketing ini dibeikan oleh tim kepada masyarakat Mapeling. Sosialisasi dilakukan melalui presentasi materi dilanjutkan dengan tanya jawab. Banyak peserta yang sangat antusias terhadap. Dari hasil pre test ternyata baru 50% peserta yang mengenal digital marketing spesifik pada penggunaan medsos Whatsapp untuk berdagang. Dengan adanya sosialisasi ini masyarakat semakin banyak yang tahu dan paham cara berniaga menggunakan digital marketing. Dengan kegiaran ini dapat disimpulkan bahwa digital marketing menjadi kebutuhan untuk berniaga secara cerdas menggunakan social media
Co-Authors Aimé, Rajomalahy Julien Arkaan, Muhammad Dzaki Besila, Qurotu Aini Dardjat, Izumi Wicaksono Fathaddin, Muh. Taufiq Fifaliana, Razakamampianina Valisoa Halim, Yosep Harifenitra, Ravololoarimanana Harin Widiyatni Havidh Pramadika Iwan Sumirat Kosasih, Andri Lalaina, Ramefivololona Hanitra M. Taufiq Fathaddin, M. Taufiq Mardiana, Dwi Atty Maulida, Fajri Muayyad, Deden Misbahudin Muhammad Taufiq Fathaddin, Muhammad Taufiq Permata Sari, Dianie Pradhana, Renato Aditya Patria Rakhmant, Pri Agung Rini Setiati Ristawati, Arinda Sariallo, Gabriela Martines Siahaya, Jacob Sonny Irawan Suryo Prakoso, Suryo Sutiadi, Andrian Syavitri, Dewi Valentino, Boy Candra