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All Journal PROSIDING SEMINAR NASIONAL CENDEKIAWAN Jurnal Eksakta Kebumian Advance Sustainable Science, Engineering and Technology (ASSET)
Onnie Ridaliani Prapansya
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Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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KAJIAN LABORATORIUM PENGUJIAN PENGARUH POLIMER DENGAN CROSSLINKER TERHADAP RESISTANCE FACTOR Raden Himawan; Sugiatmo Kasmungin; Onnie Ridaliani Prapansya
PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Cendekiawan 2017 Buku I
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.2115

Abstract

Pada saat terjadi peristiwa water conning pada sumur, maka perlu ditambahkanzat kimia, yang dimana zat kimia tersebut dapat merubah sifat fisik dari fluida yangterkandung dalam reservoir, salah satunya zat kimia tersebut ialah menggunakan polimer.Yang dimana fungsi polimer ini untuk menaikan viskositas air formasi sehingga menahanair formasi untuk ikut terproduksi. Pengujian penambahan polimer dengan crosslinkermemiliki tujuan untuk mengetahui salinitas dan konsentrasi polimer yang paling tepatterhadap nilai resistance factor. Pengujian ini mengacu kepada penurunan permeabilitasyang disebabkan oleh kenaikan viskositas air. Pengujian menggunakan model reservoirberupa sandpack yang berisi pasir sillica ukuran 40-80 mesh. Pengujian menggunakantiga kenaikan salinitas yakni pada 3.000 ppm, 10.000 ppm, dan 15.000 ppm. Serta padatiga konsentrasi polimer yakni, 500 ppm, 1.000 ppm, 1.500 pppm, 2.000 ppm. Larutantersebut di saturasikan kedalam sandpack dengan dua kenaikan temperature yakni pada150°F dan 180°F. Pada hasil pengujian dibuktikan bahwa polimer memanglah sangatefektif untuk mereduksi jumlah air dengan cara menurunkan permeabilitas air itu sendiri.
Viscosity Modeling of MES and SLS Using Machine Learning Method Fathaddin, Muhammad Taufiq; Setiati, Rini; Akbar, Fahrurrozi; Sumirat, Iwan; Bharoto; Ramadhan, Ranggi Sahmura; Onnie Ridaliani Prapansya; Ristawati, Arinda
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2304

Abstract

Viscosity is crucial to improve the efficiency of injected fluids for oil displacement in reservoirs. Traditionally, research has focused on polymers that help reduce the mobility of injected fluids, while surfactant viscosity has received less consideration. This research investigated the viscosity behavior of methyl ester sulfonate (MES) and sodium lauryl sulfate (SLS) surfactant solutions using a machine learning method—adaptive neurofuzzy inference system (ANFIS). This study aimed to predict the viscosity of surfactant solutions. Experimental data included viscosity measurements of 36 MES and SLS samples at various concentrations and temperatures, obtained by digitizing viscosity curves. These data served as input and validation for the ANN and ANFIS models. The results showed that ANFIS predicted viscosity values ​​reliably, yielding only 1.33% and 0.43% differences for MES and SLS, respectively. Comparison of viscosity prediction with Artificial Neural Network (ANN) showed that ANFIS prediction was better, because ANN yielded two deviating predictions.
ANALISA DENSITAS FLUIDA PENGEBORAN TERHADAP PENGGUNAAN METODE AERATED DRILLING PADA TRAYEK 12 ¼ SUMUR RN-1 LAPANGAN HM: Analysis of Drilling Fluid Density on The Use Of Aerated Drilling Method on 12 ¼ Section RN-1 Well in HM Field Riva Naruritta Putri; Onnie Ridaliani Prapansya; Apriandi Rizkina Rangga Wastu
Jurnal Eksakta Kebumian Vol. 5 No. 1 (2026): 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/

Abstract

ABSTRAK Pengeboran sumur geothermal di daerah pegunungan atau dataran tinggi sering mengalami kendala berupa lost circulation akibat banyaknya rekahan pada batuan beku. Kondisi ini menyebakan fluida pengeboran hilang ke formasi, sehingga mengganggu kelancaran operasi pengeboran dan menurunkan efisiensi kerja. Penelitian ini bertujuan untuk mengevaluasi penerapan metode aerated drilling dalam menurunkan atau mengurangi densitas fluida pengeboran guna mengatasi permasalahan berupa lost circulation yang ada pada sumur RN-1. Metode aerated drilling merupakan teknik pengeboran yang menggunakan lumpur pengeboran yang dicampur dengan gas bertekanan sehingga menghasilkan penurunan densitas fluida pengeboran aerasi dan proses ini bertujuan untuk mengurangi tekanan hidrostatik. Pendekatan yang digunakan dalam penelitian ini mencakup analisis kuantitatif. Analisis kuantitatif dilakukan dengan melakukan perhitungan profil densitas fluida menggunakan metode Guo-Ghalambor. Hasil analisis menunjukkan bahwa penggunaan fluida aerasi menghasilkan nilai Equivalent Circulating Density (ECD) berkisar antara 6,65 hingga 4,99 ppg, yang relatif lebih tinggi dibandingkan Equivalent Mud Weight (EMW) dari fluida konvensional yang berkisar antara 6,22 hingga 4,32 ppg. Meskipun ECD aerasi lebih tinggi, hasil ini tetap menunjukkan bahwa metode aerated drilling mampu mengurangi tekanan hidrostatis fluida secara keseluruhan dan dapat meminimalkan risiko loss circulation. ABSTRACT Geothermal well drilling in mountainous or highland areas often faces obstacles in the form of circulation loss due to numerous fractures in igneous rocks. This condition causes drilling fluid to be lost to the formation, thereby disrupting the smooth running of drilling operations and reducing work efficiency. This study aims to evaluate the application of gas-pressurized drilling methods to reduce drilling fluid density and address circulation loss issues in the RN-1 well. Foam drilling is a drilling technique that uses drilling mud mixed with pressurized gas to reduce the density of foam drilling fluid, thereby reducing hydrostatic pressure. The approach used in this study includes quantitative analysis. Quantitative analysis was performed by calculating the fluid density profile using the Guo-Ghalambor method. The analysis results show that the use of foamed fluid produces an Equivalent Circulating Density (ECD) value ranging from 6.65 to 4.99 ppg, which is relatively higher than the Equivalent Mud Weight (EMW) of conventional fluid ranging from 6.22 to 4.32 ppg. Although the oxygenated ECD is higher, these results still indicate that the oxygenated drilling method is capable of reducing the total hydrostatic pressure of the fluid and minimizing the risk of circulation loss.
Co-Authors Akbar, Fahrurrozi Apriandi Rizkina Rangga Wastu Asri Nugrahanti Bharoto Iwan Sumirat Muhammad Taufiq Fathaddin, Muhammad Taufiq Raden Himawan Ramadhan, Ranggi Sahmura Rini Setiati Ristawati, Arinda Riva Naruritta Putri Sonny Irawan Sugiatmo Kasmungin Taufan Marhaendrajana, Taufan Yarra Sutadiwiria