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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN)
Wahyuni, Viola Sri
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Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Uji Laboratorium: Analisis Berat Lumpur Pemboran Pada Sumur Can Wahyuni, Viola Sri; Fathan, Muhammad Rizqie; Ulfah, Baiq Maulinda
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 4 (2025): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i4.50225

Abstract

Drilling mud plays an important role in maintaining well stability, especially since each trajectory faces different lithological and formation pressure issues. On the 36" (conductor) trajectory, the main challenge is shallow pressure that has the potential to cause surface gas, so 8.83 ppg mud is used as a solution to withstand this pressure. The 26“ (top hole) trajectory faces swelling clay issues, so mud with a density of 10.7 ppg is selected to suppress clay expansion. In the 17 ½” (intermediate 1) trajectory, the main problem stems from reactive shale that is prone to collapse, so mud with a weight of 10.9 ppg is designed to maintain hole stability. In the 12 ¼” (intermediate 2) section, the presence of a high-pressure fracture zone required heavier mud, namely 12.9 ppg, to control formation pressure. Meanwhile, the 8 ½” (production hole) section faced the most critical conditions with the risk of HPHT, kick, and lost circulation, so mud with a density of 14.9 ppg was the best solution. The objective of this study is to obtain the right mud formula for each track by utilizing barite as the main weighting material, so that the mud weight can be adjusted to field requirements.
Uji Laboratorium: Esterifikasi dan Sulfonasi pada Surfaktan Berbasis Minyak Jentah Aliami, Alim; Wahyuni, Viola Sri; Anggraini, Devi; Candraningtyas, Aristawidya; Cambo, Andi Atsiilah Besse; Asraf , Muh
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.54212

Abstract

Used cooking oil is a household waste that has the potential to pollute the environment, but it can still be used as a raw material for value-added surfactants. This study aims to examine the process of utilizing used cooking oil through the esterification and sulfonation stages to produce methyl ester sulfonate (MES) surfactants. The research method was carried out experimentally in the laboratory with the stages of pretreatment of used cooking oil, esterification using methanol and KOH catalyst at a temperature of 65–75 °C, followed by washing and purification of methyl esters, and the sulfonation process using H₂SO₄ and neutralization with NaOH. The results showed that the esterification process produced methyl esters with an increased level of purity despite a decrease in volume due to the washing process. The sulfonation stage successfully converted methyl esters into MES with amphiphilic properties suitable as surfactants. This study shows that used cooking oil has the potential to be used as a raw material for environmentally friendly and economically valuable surfactants.
Co-Authors Aliami, Alim Asraf , Muh Cambo, Andi Atsiilah Besse Candraningtyas, Aristawidya Devi Anggraini Fathan, Muhammad Rizqie Ulfah, Baiq Maulinda