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All Journal Jurnal Abdi Masyarakat Indonesia Banua: Jurnal Kesehatan Lingkungan Petro : Jurnal Ilmiah Teknik Perminyakan JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Journal of Earth Energy Science, Engineering, and Technology Scientific Contributions Oil and Gas
Widia Yanti, Widia
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Humanities Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Public Health Other

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ANALISIS KELAYAKAN KEEKONOMIAN PADA PENGEMBANGAN PEMBANGKIT LISTRIK PANAS BUMI KAPASITAS 2X20 MW Timpal, Gracia Betaria Jacqueline; Irham, Syamsul; Yulia, Prayang Sunny; Husla, Ridha; Pramadika, Havidh; Yanti, Widia
Petro : Jurnal Ilmiah Teknik Perminyakan Vol. 13 No. 1 (2024): Maret 2024
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v13i1.17229

Abstract

Panas bumi menjadi salah satu sumber daya energi terbarukan yang mempunyai potensi yang melimpah di Indonesia dan dapat dikembangkan menjadi pembangkit listrik untuk menghasilkan listrik bagi masyarakat. Pengembangan proyek pembangkit listrik dapat dilaksanakan jika proyek tersebut bisa memberi keuntungan dari sisi ekonominya. Tujuan: Penelitian ini bertujuan untuk menilai kelayakan dari suatu proyek pengembangan PLTP kapasitas 2X20 MW lapangan ‘GT’. Serta untuk mengetahui parameter-parameter yang berpengaruh terhadap indikator keekonomian seperti Net Present Value (NPV), Internal Rate of Return (IRR) dan Pay Out Time (POT). Metodologi: Perhitungan kelayakan keekonomian ini menggunakan metode discounted cash flow. Dalam analisis kelayakan keekonomian proyek pengembangan PLTP diperlukan parameter perhitungan investasi, produksi dan revenue, depresiasi serta OPEX untuk menghitung proyeksi cash flow nya, dengan tarif listrik yang diatur berdasarkan Peraturan Presiden Nomor 12 Tahun 2022. Hasil: Dari hasil penelitian diperoleh nilai indikator keekonomian NPV sebesar USD -31.336.000 dan nilai IRR sebesar 7,11%. Dengan hasil tersebut menunjukkan bahwa proyek ini tidak ekonomis dan tidak layak untuk dikembangkan, sehingga dilakukan peminjaman dana dengan NPV menjadi sebesar USD 528.000, IRR sebesar 10,46% dengan POT selama 28 tahun. Kesimpulan: Analisis sensitivitas yang telah dilakukan menunjukkan bahwa parameter tarif, power generation (EPCC), drilling cost dan OPEX memiliki pengaruh yang signifikan terhadap proyek pengembangan PLTP lapangan ‘GT’.
ANALISA BATOK KELAPA DAN KWIKSEAL TERHADAP SIFAT FISIK LUMPUR POLYMER PHPA DAN RESINEX 200 F DAN 300 F Lumban Toruan, Michael Joshua; Yanti, Widia; Rangga Wastu, Apriandi Rizkina
Petro : Jurnal Ilmiah Teknik Perminyakan Vol. 13 No. 3 (2024): September 2024
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v13i3.12799

Abstract

ABSTRAK Hilang sirkulasi adalah hilangnya sebagian atau seluruh volume fluida pemboran ataupun slurry semen pemboran ke dalam pori-pori suatu formasi batuan selama operasi pemboran berlangsung diakibatkan oleh adanya tekanan hidrostatik yang berlebihan. Tujuan dari penelitian ini yaitu untuk mengetahui perubahan nilai sifat fisik lumpur pada sampel LCM batok kelapa dan kwikseal terhadap lumpur polymer PHPA dan resinex pada temperatur 200℉ dan 300℉. Penelitian tugas akhir ini dilakukan dengan dibuatnya 12 sampel lumpur dengan dua LCM yaitu batok kelapa dan kwikseal. Penambahan batok kelapa ke dalam lumpur dasar membuat densitas lumpur jadi 10.9 ppg dan 11 ppg . Penambahan kwik seal ke dalam lumpur dasar membuat densitas lumpur jadi 10. ppg dan 10.8 ppg. Pada filtrate loss ditambahkan batok kelapa yaitu saat ditambahkan PHPA. Penambahan kwik seal 8 gram pada lumpur lebih baik dibandingkan penambahan batok kelapa 8 gram, karena sifat fisik dan rheologi lumpur mampu memenuhi spesifikasi lapangan pada temperatur 300℉. Kata kunci: loss circulation material, batok kelapa, kwikseal, polymer PHPA, Resinex ABSTRACTLoss of circulation is the loss of part or all of the volume of drilling fluid or drilling cement slurry into the pores of a rock formation during drilling operations due to excessive hydrostatic pressure. The purpose of this study was to determine changes in the value of the physical properties of the coconut shell and kwikseal LCM mud on polymer PHPA and resinex at temperatures of 200℉ and 300℉. This research was conducted by making 12 samples of mud with two LCM, namely coconut shell and kwikseal. The addition of coconut shells made the mud density 10.9 ppg and 11 ppg. The addition of kwik seal made the mud density 10. ppg and 10.8 ppg. The addition of 8 grams of kwik seal to the mud was better than the addition of 8 grams of coconut shells, because the physical and rheological properties of the mud were able to meet field specifications at a temperature of 300℉. Kata kunci: loss circulation material, coconut shell, kwikseal, polymer PHPA, Resinex
Pelatihan Pemanfaatan Artificial Intelligence bagi Tenaga Pendidik Pondok Pesantren Madinatunnajah, Kota Tangerang Selatan, Banten Prima, Andry; Aryanto, Reza; Pramadika, Havidh; Kashah, Muhammad Refli; Satiyawira, Bayu; Samura, Lisa; Maulani, Mustamina; Rosyidan, Cahaya; Djumantara, Maman; Wibowo, Djunaedi Agus; Nugrahanti, Asri; Dahani, Wiwik; Yanti, Widia
Jurnal Abdi Masyarakat Indonesia Vol 5 No 5 (2025): JAMSI - September 2025
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.2083

Abstract

Keterbatasan penguasaan teknologi digital, khususnya Artificial Intelligence (AI), masih menjadi tantangan bagi tenaga pengajar di Pondok Pesantren Madinatunnajah. Padahal, penguasaan teknologi tersebut semakin relevan dalam menunjang efektivitas pembelajaran di era transformasi digital. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kapasitas tenaga pengajar pondok pesantren dalam memahami dan memanfaatkan AI secara praktis dalam kegiatan belajar mengajar. Kegiatan ini dilaksanakan melalui pelatihan berbasis pemaparan materi, diskusi interaktif, dan praktik langsung, yang kemudian dievaluasi menggunakan pendekatan deskriptif kuantitatif melalui survei terhadap 19 peserta.Hasil evaluasi menunjukkan bahwa pelatihan memberikan dampak positif yang nyata, tercermin dari peningkatan rata-rata kemampuan peserta dari skor 2,11 menjadi 2,89. Visualisasi boxplot menunjukkan peningkatan yang merata dan konsisten, sementara analisis heatmap dan radar chart memperlihatkan penilaian tinggi terhadap efektivitas metode pengajaran dan relevansi materi pelatihan. Dampak kegiatan ini dirasakan langsung oleh mitra, yakni tenaga pengajar di Madinatunnajah, yang kini memiliki pengetahuan dan keterampilan dasar dalam mengintegrasikan AI ke dalam proses pembelajaran. Selain itu, kegiatan ini mendorong terbangunnya budaya literasi digital di lingkungan pesantren serta menjadi model awal integrasi teknologi dalam pendidikan berbasis keagamaan. Program ini diharapkan menjadi langkah awal dalam menciptakan guru-guru pesantren yang adaptif terhadap perkembangan teknologi pendidikan.
Determinants of Household Waste Management Behavior in Margagiri Village Bojonegara District Serang Regency Yanti, Widia; Dini Daningrum
Banua: Jurnal Kesehatan Lingkungan Vol. 5 No. 2 (2025)
Publisher : Poltekkes Kemenkes Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33860/bjkl.v5i2.4161

Abstract

Background: Household waste management is an important issue in Indonesia, especially in rural areas that still face limited facilities and access to information. Poor waste management can trigger environmental pollution and negatively impact public health. This study aims to analyze the factors associated with household waste management behavior in Margagiri Village.  Method: This study used a quantitative method with a cross-sectional design. The research was conducted from January to June 2025 in Margagiri Village, Bojonegara Subdistrict, Serang Regency. The sample consisted of 100 housewives selected using a simple random sampling technique. Data were collected through interviews using a structured questionnaire. Data were analyzed using univariate and bivariate analyses with the Chi-Square test. Result: The univariate analysis showed that 56% of respondents had poor household waste management behavior and 61% had a low level of knowledge. A total of 27% of respondents had never received information related to waste management, 21% did not receive support from health workers, 82% were unemployed, and 86% had an income below the regional minimum wage. The bivariate analysis revealed significant relationships between knowledge (p=0.002), information (p=0.000), health worker support (p=0.000), and income (p=0.052) and household waste management behavior. Meanwhile, the employment variable showed no significant relationship. Conclusion: These findings indicate that household waste management behavior is influenced by the level of knowledge, access to information, support from health workers, and income level.
Laboratory Study: Comparison of Physical Properties of XCD Polymer Drilling Mud and PHPA Fattahanisa, Aqlyna; Yanti, Widia; Rizkina Rangga Wastu, Apriandi; Ristawati, Arinda; Setiati, Rini; Fadliah; Poluan, Chris Elvano; Juanda, Firdaus
Journal of Earth Energy Science, Engineering, and Technology Vol. 6 No. 3 (2023): JEESET VOL. 6 NO. 3 2023
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jeeset.v6i3.13998

Abstract

The physical properties of the drilling mud greatly affect the success of the mud in lifting cuttings. The value of the physical properties of the drilling mud that is not in accordance with the required specifications can make cutting removal not optimal. In this study, an analysis of the physical properties of XCD Polymer and PHPA drilling mud will be carried out at temperatures of 100 oF, 200 oF, and 300 oF. This research is experimental which will test the characteristics or physical properties of the mud used. At the beginning of testing the physical properties of the XCD Polymer and PHPA mud using the initial composition of each of these muds, the results obtained did not fit into the mud specifications that had been determined due to the influence of the temperature increase. If you continue to use the same mud composition, the higher the temperature, some of the physical properties of the drilling mud will decrease. To overcome this problem, additives are added to the mud composition at each temperature to be tested. This is done so that the results of testing the value of the physical properties of the mud tested at each temperature are in accordance with predetermined specifications. After re-testing using the composition of the mud that has been added with additives, the results obtained from the two tested muds are the density value of 8.9-11.2 ppg, viscosity of 24-33 sec/qt, plastic viscosity of 20-33 cps, yield point of 21-28 lb/100 sqft, gel strength 10 seconds and 10 minutes respectively of 4-6 lb/100 sq. ft and 6-8 lb/100 sqft, filtration loss of 1.9- 4.6 ml, the thickness of the mud cake is 0.6-1 ml, and the pH is 9-10.
SOSIALISASI DAMPAK DAN MANFAAT WILLOW PROJECT SEBAGAI PENGENALAN TEKNIK PERMINYAKAN DI SMA YOS SUDARSO METRO Yulia, Prayang Sunny; Wastu, Apriandi Rizkina Rangga; Ristawati, Arinda; Pauhesti, Pauhesti; Husla, Ridha; Timpal, Gracia Betaria Jacqueline; Wijayanti, Puri; Aryanto, Reza; Yanti, Widia
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.v5i2.17404

Abstract

Willow Project berada di north slope Alaska, area National Petroleum Reserve, milik pemerintah federal Amerika Serikat. Berdasarkan isu yang beredar, adanya keingintahuan para siswa SMA Yos Sudarso Metro untuk mengetahui alasan dilakukannya pengeboran minyak, dampak serta manfaat dari pengeboran yang dilihat dari berbagai aspek. Pengabdian kepada Masyarakat (PkM) dengan tema Willow Project ini bertujuan untuk membantu para siswa menemukan solusi terkait hal ini, dengan pembahasan mengenai dampak dan manfaat dari sisi akademisi, khususnya teknik perminyakan. Metode yang digunakan yaitu pendekatan jarak jauh dengan mitra (Jakarta-Lampung) dan korespondensi secara digital. Para penyuluh mencari literatur yang relevan, baik dari sisi energi, serta dampak dan manfaat dikutip dari berbagai sisi seperti ekonomi, sosial, dan lingkungan. Pada PkM ini dijelaskan dampak yang terjadi terhadap lingkungan, iklim, dan sosial. Selain itu dipaparkan pula manfaat pengeboran Willow Project, yaitu penciptaan lapangan kerja dan manfaat ekonomi, kemandirian energi, dan pendapatan pajak. Inti dari dampak dan manfaat yang disampaikan, tetap diharapkan adanya pemanfaatan energi fosil guna meningkatkan lapangan kerja bagi masyarakat sekitar maupun internasional. Selain itu, juga tetap mengharapkan adanya pengembangan renewable energy, guna meminimalisir pengeboran di daerah-daerah konservasi, sehingga dapat mempertahankan keutuhan lingkungan.
Effect of LHP Nanosilica on Sandstone Wettability and Oil Recovery by Imbibition in Crude Oils with Different API Jumiati, Wiwiek; Hani, Berkah; Yanti, Widia; Sutresno, Wahyu; Wihdany, Falza Izza; Ghaziyah, Hawa Syuraih; Herlambang, Karyanto; Celli, Agli Tori; Wibowo, Gilang Saputra
Scientific Contributions Oil and Gas Vol 49 No 1 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i1.2053

Abstract

This study investigates the influence of lipophobic–hydrophilic polysilicon (LHP) nanosilica on wettability alteration and oil recovery performance through spontaneous imbibition in initially neutral-wet sandstone. The novelty of this study lies in its systematic comparative framework using two crude oils with distinct API gravities and SARA compositions to evaluate the role of fluid–rock interactions in depth. Two crude oils with different API gravities were selected to evaluate the role of oil composition in fluid–rock interactions. Crude oil properties were characterized using SARA analysis, while imbibition tests were conducted using 5000 ppm brine and nanosilica dispersions at controlled concentrations. Wettability Index (WI) was determined using the Amott cell method, and Oil Recovery Factor (ORF) was calculated from produced oil volume. Results indicate that LHP nanosilica consistently shifts rock wettability toward more water-wet conditions. The lighter crude oil exhibits a stronger wettability response and higher recovery improvement than the heavier oil. A positive correlation between WI and ORF confirms wettability alteration as the dominant enhanced oil recovery mechanism. These findings provide a significant contribution by establishing crude oil characteristics as a key controlling factor in nanofluid EOR design, which is crucial for field applications with complex fluid variations.
Effects of Palm-Oil-Based Methyl Ester Sulfonate (MES) in Laboratory-Scale Enhanced Oil Recovery Process Ridaliani, Onnie; Samsol; Setiati, Rini; Fathaddin, Muhammad Taufiq; Anggela, Lilian; Prima, Andry; Davy, Nandito; Yanti, Widia
Scientific Contributions Oil and Gas Vol 48 No 4 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i4.1825

Abstract

Natural Declining oil production is often caused by reduced natural driving forces within reservoirs. To address this limitation, enhanced oil recovery (EOR) technology introduces external energy or chemical agents to mobilize residual oil. This study evaluated the performance of palm-oil-based methyl ester sulfonate (MES) an anionic and biodegradable surfactant synthesized from renewable feedstock for improving recovery efficiency under laboratory-scale conditions. Core-flood experiments were performed using Berea sandstone cores, intermediate 33°API crude oil, low salinity of 10,000 ppm, synthetic brine at 60 °C. The testing sequence included screening test of palm-oil-based MES, brine saturation, oil saturation, waterflooding, and subsequent surfactant flooding with 1.5% MES solution. During waterflooding, the recovery factor reached 62.8 %, leaving 31.29 % residual oil saturation. Injection of 1.5 wt % MES increased the recovery factor to 68.8 % and reduced residual oil saturation to 26.25 %, indicating enhanced displacement and improved microscopic sweep efficiency. The results confirmed that palm-oil-derived MES effectively mobilizes trapped oil and demonstrates strong potential as an environmentally friendly and locally available surfactant for chemical EOR applications in the reservoirs.
Drilling Fluid Optimization Using Response Surface Methodology Satiyawira, Bayu; Maulani, Mustamina; Samura, Lisa; Pramadika, Havidh; Nugrahanti, Asri; Rosyidan, Cahaya; Prima, Andry; Arkaan, Muhammad Dzaki; Yanti, Widia
Scientific Contributions Oil and Gas Vol 48 No 4 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i4.1900

Abstract

Water-based drilling fluids commonly exhibit rheological degradation under high-temperature, high-pressure (HTHP) conditions, resulting in significant reductions in viscosity, yield point (YP), and gel strength (GS). Previous studies relying on conventional additives such as PAC, CMC, KOH, and NaOH have not fully resolved this issue, particularly in maintaining rheological stability at elevated temperatures. This study addresses this gap by introducing an alkaline polymer as a multifunctional additive intended to replace several conventional components while enhancing thermal resistance. Response Surface Methodology (RSM) with a Box–Behnken design was used to evaluate the combined effects of Carboxymethyl Cellulose (CMC) and alkaline polymer at three temperature levels: 80°F, 150°F, and 250°F. Experimental results show that at 150°F, the optimized formulation consists of 3.5 g CMC and 3.6 g alkaline polymer, yielding a viscosity of 17.64 cP, plastic viscosity of 12.46 cP, and a YP of 7.72 lb/100 ft², representing a substantial improvement compared to the baseline formulations, where YP values decreased significantly with temperature. The optimized mud also demonstrated improved gel strength and consistent filtrate control relative to non-optimized systems. The novelty of this study lies in the use of an alkaline polymer as a single multifunctional substitute for multiple drilling-fluid additives, combined with a multi-temperature RSM optimization framework. The findings provide a simplified, thermally stable drilling-fluid formulation suitable for HTHP environments.
Co-Authors -, Pauhesti Andry Prima Anggela, Lilian Aqlyna Fattahanisa Arkaan, Muhammad Dzaki Aryanto, Reza Asri Nugrahanti, Asri Bayu Satiyawira Cahaya Rosyidan Celli, Agli Tori Davy, Nandito Dini Daningrum Djoko Sulistyanto, Djoko Djunaedi Agus Wibowo Fadliah Ghanima Yasmaniar Ghaziyah, Hawa Syuraih Hani, Berkah Havidh Pramadika Henk, Alvin Herdyanti, Mixsindo Korra Herlambang, Karyanto Husla, Ridha Juanda, Firdaus Jumiati, Wiwiek Kashah, Muhammad Refli Lestari Said, Lestari Lumban Toruan, Michael Joshua Maman Djumantara, Maman Maulani, Mustamina Muhammad Taufiq Fathaddin, Muhammad Taufiq Onnie Ridaliani, Onnie Pauhesti, Pauhesti Poluan, Chris Elvano Puri Wijayanti, Puri Rini Setiati Ristawati, Arinda Riswati, Shabrina Sri Rizkina Rangga Wastu, Apriandi Samsol Samura, Lisa Sutresno, Wahyu Syamsul Irham, Syamsul Timpal, Gracia Betaria Jacqueline Wastu, Apriandi Rizkina Rangga Wibowo, Gilang Saputra Wihdany, Falza Izza wiwik dahani, wiwik Yulia, Prayang Sunny