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SOSIALISASI PROGRAM KESELAMATAN DAN KESEHATAN KERJA BAGI KARYAWAN CV RUMAH KAMPUNG SAWANGAN, DEPOK, JAWA BARAT Suryo Prakoso; Mustamina Maulani; Asri Nugrahanti; Lisa Samura; Syamsul Irham
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 3 No 1 (2021): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Aspek Keselamatan dan kesehatan kerja (K3) wajib untuk dipahami oleh setiap pekerja dan pemilik usaha. Namun demikian masih banyak pekerja maupun pemilik usaha yang belum memahami aspek K3, padahal apabila diterapkan dengan benar dapat membantu meningkatkan kesejahteraan dan produktivitas kerja baik bagi pekerja itu sendiri maupun pemilik usaha. Sosialisasi ini dimaksudkan untuk memberikan pemahaman mengenai aspek-aspek K3 di lingkungan CV Rumah Kampung. Pemahaman ini diperlukan untuk memastikan bahwa setiap pekerja terlindungi dan terjamin keselamatannya di tempat kerja dan setiap sumber produksi perusahaan dapat digunakan secara aman dan efisien. Sosialisasi ini diikuti oleh pemilik, manajemen dan seluruh karyawan Perusahaan Rumah Kampung. Dari diskusi yang dilakukan selama sosialisasi, terungkap bahwa Perusahaan Rumah Kampung sudah menerapkan sebagian aspek K3 meskipun belum seluruhnya, sesuai yang diharapkan oleh pemerintah seperti yang tercantum dalam UU No. 1 Tahun 1970, tentang keselamatan kerja. Sosialisasi ini telah membuka wawasan pemilik usaha Rumah Kampung dan para pekerja mengenai pentingnya penerapan aspek-aspek K3 yang benar, sehingga setiap pekerja dapat terlindungi keselamatan dan kesehatannya, serta aset-aset perusahaan juga terlindungi. Tentu saja adanya kesadaran setiap pekerja untuk melindungi setiap aset perusahaan sangat diperlukan untuk keberlangsungan hidup perusahaan dan untuk menjamin keberlangsungan hajat hidup pekerjanya.

Comparative Analysis of Indonesia Gross Split PSC with Fiscal Terms of Several Southeast Asian Countries Saptianta Aribawa Sabaris; Asri Nugrahanti; Dwi Atty Mardiana
Journal of Earth Energy Science, Engineering, and Technology Vol. 3 No. 3 (2020): JEESET VOL. 3 NO. 3 2020
Publisher : Penerbitan Universitas Trisakti

The implementation of the Gross Split PSC in the upstream oil and gas industry in Indonesia has been running since 2017 with the hope of being able to accelerate the decision-making process and increase attractiveness for oil and gas investors. This study is to analyze the implementation of Indonesia Gross Split PSC compared to other fiscal terms in Southeast Asia region from an economics perspective. The comparisons reviewed are between Indonesia Gross Split PSC and the following fiscal terms: Indonesia Cost Recovery PSC, Malaysia R/C PSC, Thailand Concession, and Vietnam PSC. Fields used as input for analysis are producing oil fields with small-scale recoverable reserves according to RF-2005 / SPE, namely Block X (early production fields) and Block Y (terminated fields). From economics calculations and comparisons, sensitivity and profitability characteristics, specifically applied to the field conditions under review, it is concluded that Indonesia Gross Split PSC has improved economics indicators compared to Indonesia Cost Recovery PSC so that Indonesia Gross Split PSC has an economics level indicator that is better than PSC Indonesia Cost Recovery when compared to Malaysian R/C PSC, Thailand Concession and Vietnam PSC.

Effect of Sand Grain Size on Spontaneous Imbibition of Surfactant Solution Pri Agung Rakhmanto; Listiana Satiawati; Rini Setiati; Asri Nugrahanti; Sonny Irawan
Journal of Earth Energy Science, Engineering, and Technology Vol. 4 No. 2 (2021): JEESET VOL. 4 NO. 2 2021
Publisher : Penerbitan Universitas Trisakti

In spontaneous imbibition researches, surfactant has been employed to control interfacial tension (IFT) and wettability. In this paper, the evaluation of grain size effect on spontaneous imbibition of surfactant solution is presented. In this work, the synthetic porous media (sand packs) with uniform and non-uniform grain size from 30 mesh to 100 mesh were made. The porous media were initially saturated by oil. Then they were immersed in brine with salinity of 62 to 40,000 ppm for 24 hours. After that, the porous media were immersed in surfactant solution with concentration of 0.2% for another 24 hours. The total oil recovery during these treatments was measured. The experiment was separated into three parts in order to investigate the effect of uniform grains, non-uniform grains, and salinity in spontaneous imbibition. The results show that grain size and porosity were proportional to oil recovery. In the case of porous media with uniform grain size, the effect of grain size on recovery factor is stronger than that of porosity. Meanwhile the salinity has an the optimum condition for a maximum recovery factor. In this study, it happened at salinity of 20,000 ppm. Oil recovery factors observed in this study ranged from 66.7% to 91.1%.

Miscible Water Alternating Gas CO2 Injection Performance Analysis as Efforts to Improve Oil Recovery Factors in Field CW Citra Wahyuningrum; Muhammad Taufiq Fathaddin; Asri Nugrahanti; Esaim Mustafa Abrahim Omar
Journal of Earth Energy Science, Engineering, and Technology Vol. 5 No. 1 (2022): JEESET VOL. 5 NO. 1 2022
Publisher : Penerbitan Universitas Trisakti

The Enhanced Oil Recovery (EOR) method aims to increase oil production. One of the EOR methods is CO2 injection. CO2 injection mechanism is by expanding the volume of oil, reducing viscosity, and reducing the mobility ratio. The purpose of the study was to compare the recovery factor gain in the waterflood, Miscible CO2 Continuous injection, and Miscible WAG CO2 injection methods with a three-dimensional simulation methodology using CMG Compositional software in the CW Field. From the CW field, a sectoral model was chosen to be studied, namely the area of the CW-A well and the CW-B well because the two areas have different reservoir conditions. The optimal injection well pattern for the CW-A Well area and the CW-B Well area is Inverted Five Spot. CO2 injection is said to be miscible because the injection pressure and reservoir pressure are above MMP (2800 psi) and mixing occurs between CO2 and oil to form a homogeneous phase. The optimal CW-A (Low Permeability) well area using the 4 PV CO2 Continues Injection scenario (injection rate 31.8 Mscf/d) produces an RF of 61.18%. Optimal CW-B (High Permeability) Well Area using CO2-WAG 2 PV injection scenario in 90 days (3 months) cycle, WAG Ratio 1:3 (injection water rate 20,036.84 bwpd and gas injection rate 33.75 Mscf/d) produces RF of 61.76%.

ANALISIS PENENTUAN NILAI PARAMETER PETROFISIKA PADA SUMUR N & M LAPANGAN X: ANALYSIS OF DETERMINATION OF PETROPHYSICAL PARAMETER VALUES IN N & M WELLS FIELD X Nurfath Subha Muhammad; Asri Nugrahanti; Sigit Rahmawan
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.v3i2.16065

Abstrak Lapangan X merupakan lapangan minyak dan gas yang memiliki 2 sumur yaitu Sumur N dan Sumur M. Setiap sumur ini akan dianalisis parameter petrofisik untuk dapat memperoleh zona prospek serta nilai parameter petrofisik pada masing masing sumur, metode penelitian yang dilakukan yaitu analisis secara kualitatif dan analisis secara kuantitatif. Berdasarkan analisis kualitatif melalui software Interactive Petrophysics didapatkan setiap zona prospek pada setiap sumur serta dengan jenis batuan yang tergolong batuan pasir (sandstone). Kemudian hasil dari analisis kuantitatif pada setiap sumur, nilai parameter petrofisik sumur N dan M dalam nilai rata-rata dari setiap zona prospek yang ada pada masing-masing sumur. Sumur N dan M memiliki nilai volume shale yaitu sebesar 20.1%, 16.6%, nilai porositas efektif sebesar 8.4%, 6%, nilai saturasi air sebesar 56.2%, 41.5%, dan nilai permeabilitas sebesar 32.12 mD, 31.97 mD. Berdasarkan data tersebut maka akan dilanjutkan dengan cut-off untuk memilah zona yang tidak prospek dengan zona yang prospek pada sumur N dan M. Setelah dilakukannya cut-off pada masing-masing sumur, masing-masing sumur akan memiliki nilai volume shale yaitu sebesar 17.7%, 15.3%, nilai porositas efektif sebesar 10.4%, 9%, nilai saturasi air sebesar 50.1%, 35.1%, dan nilai permeabilitas sebesar 93.88 mD, 123.33 mD. Berdasarkan hasil analisis kuantitatif, maka masing masing sumur dapat dikatakan tergolong sumur yang sedang hingga baik. Kata kunci: Petrofisika, Porositas, Saturasi Air, Permeabilitas Abstract Field X is an oil and gas field which has 2 wells, namely Well N and Well M. Each of these wells will be analyzed for petrophysical parameters to obtain prospect zones as well as petrophysical parameter values for each well. The research method used is qualitative analysis and quantitative analysis. quantitative. Based on qualitative analysis through Interactive Petrophysics software, each prospect zone is obtained in each well and with rock types classified as sandstone. Then the results of the quantitative analysis for each well, the value of the petrophysical parameters of wells N and M in the average value of each prospect zone in each well. The N and M wells had shale volume values of 20.1%, 16.6%, effective porosity values of 8.4%, 6%, water saturation values of 56.2%, 41.5%, and permeability values of 32.12 mD, 31.97 mD. Based on these data, it will be followed by a cut-off to sort out the zones that are not prospects from the zones that are prospects for wells N and M. After the cut-off is done for each well, each well will have a shale volume value of 17.7%, 15.3%, effective porosity values of 10.4%, 9%, water saturation values of 50.1%, 35.1%, and permeability values of 93.88 mD, 123.33 mD. Based on the results of quantitative analysis, each well can be classified as a medium to good well. Keywords: Petrophysics, Porosity, Water Saturation, Permeability

USE OF ANOVA STATISTICAL METHOD IN EVALUATION OF TOFU WASTEWATER USED FOR SPIRULINA CULTURE MEDIUM ENRICHED WITH UREA AND NaHCO3 Mustamina Maulani; Gabriella Jasmine; Rosmalia Dita Nugraheni; Maman Djumantara; Asri Nugrahanti; Bayu Satiyawira; Cahaya Rosyidan; Lisa Samura; Harin Widiyatni; Pauhesti Pauhesti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 6, NUMBER 2, OCTOBER 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v6i2.16933

Indonesia has a large amount of liquid waste originating from the tofu industry. Currently, the treatment of tofu industrial wastewater is carried out using both anaerobic and aerobic methods, but both methods still have several weaknesses. In this study, the tofu industrial wastewater was utilized as a culture medium for Spirulina sp. to provide economic value from wastewater that can be used as bioethanol, pharmaceuticals, and food products rich in omega 3, chlorophyll, carotenoids. Aim: The growth of Spirulina sp. is closely related to the availability of macro and micronutrients as nutrients and the influence of environmental conditions, so this study was aimed to see the best variation of the addition of urea and NaHCO3 as additional nutrients to maximize growth and cell density of Spirulina sp. with tofu industrial wastewater media. Methodology and Results: This study was done by culvitating Spirulina sp in the growth media, measuring the Optical Density (OD), and analyzing quantitatively and using ANOVA on IBM SPSS Statistics version 20. The study indicated that adding urea and NaHCO3 to Spirulina sp. had no effect on cell density and growth rate. Treatment with addition of urea 0.36 g/500 ml without additional of NaHCO3 had the highest growth rate, 0.00852/day, and the highest cell density value on Spirulina sp. growth. Conclusion, significance, and impact study: The tofu liquid waste can be used as a new alternative used as fertilizer because in the liquid tofu waste, it provides the nutrients needed by Spirulina sp.

The Effect of Temperature on Filtration Loss and Mud Cake on The Concentration of Corn Starch Using the KCl-Polymer Sludge System Safira Azzahra fira; Lestari; Lisa Samura; Asri Nugrahanti; Rachmi Kartini
Journal of Earth Energy Science, Engineering, and Technology Vol. 6 No. 2 (2023): JEESET VOL. 6 NO. 2 2023
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jeeset.v6i2.17685

Drilling mud is a type of fluid that can help smoothing a drilling. The function of the drilling mud in the drilling process is to lift the drilling cutting. In this laboratory research, corn starch was used as a substitute for starch to reduce filtration loss. Corn starch is made by cleaning, drying, grinding, and sieving. The purpose of this research is to make mud with the addition of corn starch. its effect on filtration loss and mud cake at two temperature conditions. In this study the use of corn starch to be mixed into the mud with concentrations of 3 grams, 5 grams, 7 grams, 9 grams, and 11 grams. Accordingly, it can be seen which mud composition complies with the standard drilling mud specifications. Laboratory test results showed that the addition of corn starch additives caused a decrease in filtration loss for each difference in concentration and temperature. With the addition of 11 grams of corn starch, filtration loss decreased from 6.2 ml to 4.4 ml at 80°F, and it decreased from 5.2 ml to 3.9 ml at 200°F. In addition, corn starch additives cause the thickness of the mud cake formed to decrease. At a temperature of 80 oF the thickness of the mud cake decreased from 0.76 mm to 0.46 mm, while at a temperature of 200 oF it decreased from 0.62 to 0.42 mm. Based on the research results, corn starch additives and temperature influence changes in filtration loss and mud cake.

A Regression Analysis Approach To Van Everdingen-Hurst Dimensionless Water Influx Variables For Infinite And Finite Aquifers Muhammad Taufiq Fathaddin; Yarra Sutadiwiria; Taufan Marhaendrajana; Sonny Irawan; Onnie Ridaliani Prapansya; Asri Nugrahanti
Scientific Contributions Oil and Gas Vol. 47 No. 1 (2024): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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

Until now, water influx calculations have relied on accurate values of the van Everdingen-Hurst WeD dimensionless variables. For programming and hand calculators, equations are needed to determine WeD. The previous model provides equations for WeD calculations for the infinite aquifer case. This paper presents two sets of regression equations that are simple to apply to obtain accurate values of WeD either the infinite or finite aquifer case. The proposed equations have good agreement with the van Everdingen-Hurst method with an average difference of 0.77% and 1.18% for the cases of infinite aquifer and finite aquifer, respectively.

ANALISIS PENENTUAN NILAI PARAMETER PETROFISIKA PADA SUMUR N & M LAPANGAN X: ANALYSIS OF DETERMINATION OF PETROPHYSICAL PARAMETER VALUES IN N & M WELLS FIELD X Subha Muhammad, Nurfath; Asri Nugrahanti; Sigit Rahmawan
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.v3i2.16065

Abstrak Lapangan X merupakan lapangan minyak dan gas yang memiliki 2 sumur yaitu Sumur N dan Sumur M. Setiap sumur ini akan dianalisis parameter petrofisik untuk dapat memperoleh zona prospek serta nilai parameter petrofisik pada masing masing sumur, metode penelitian yang dilakukan yaitu analisis secara kualitatif dan analisis secara kuantitatif. Berdasarkan analisis kualitatif melalui software Interactive Petrophysics didapatkan setiap zona prospek pada setiap sumur serta dengan jenis batuan yang tergolong batuan pasir (sandstone). Kemudian hasil dari analisis kuantitatif pada setiap sumur, nilai parameter petrofisik sumur N dan M dalam nilai rata-rata dari setiap zona prospek yang ada pada masing-masing sumur. Sumur N dan M memiliki nilai volume shale yaitu sebesar 20.1%, 16.6%, nilai porositas efektif sebesar 8.4%, 6%, nilai saturasi air sebesar 56.2%, 41.5%, dan nilai permeabilitas sebesar 32.12 mD, 31.97 mD. Berdasarkan data tersebut maka akan dilanjutkan dengan cut-off untuk memilah zona yang tidak prospek dengan zona yang prospek pada sumur N dan M. Setelah dilakukannya cut-off pada masing-masing sumur, masing-masing sumur akan memiliki nilai volume shale yaitu sebesar 17.7%, 15.3%, nilai porositas efektif sebesar 10.4%, 9%, nilai saturasi air sebesar 50.1%, 35.1%, dan nilai permeabilitas sebesar 93.88 mD, 123.33 mD. Berdasarkan hasil analisis kuantitatif, maka masing masing sumur dapat dikatakan tergolong sumur yang sedang hingga baik. Kata kunci: Petrofisika, Porositas, Saturasi Air, Permeabilitas Abstract Field X is an oil and gas field which has 2 wells, namely Well N and Well M. Each of these wells will be analyzed for petrophysical parameters to obtain prospect zones as well as petrophysical parameter values for each well. The research method used is qualitative analysis and quantitative analysis. quantitative. Based on qualitative analysis through Interactive Petrophysics software, each prospect zone is obtained in each well and with rock types classified as sandstone. Then the results of the quantitative analysis for each well, the value of the petrophysical parameters of wells N and M in the average value of each prospect zone in each well. The N and M wells had shale volume values of 20.1%, 16.6%, effective porosity values of 8.4%, 6%, water saturation values of 56.2%, 41.5%, and permeability values of 32.12 mD, 31.97 mD. Based on these data, it will be followed by a cut-off to sort out the zones that are not prospects from the zones that are prospects for wells N and M. After the cut-off is done for each well, each well will have a shale volume value of 17.7%, 15.3%, effective porosity values of 10.4%, 9%, water saturation values of 50.1%, 35.1%, and permeability values of 93.88 mD, 123.33 mD. Based on the results of quantitative analysis, each well can be classified as a medium to good well. Keywords: Petrophysics, Porosity, Water Saturation, Permeability

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