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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN)
Fitria, Debby Nur
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Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Evaluasi Pengaruh Variasi Konsentrasi Bentonit terhadap Densitas Lumpur Pemboran Berbasis Air Huldiah, Huldiah; Fitria, Debby Nur; Wiranto, Wiranto
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 2 (2026): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i2.57124

Abstract

In petroleum operations, drilling is a fundamental process that determines the success of reaching reservoir targets. Drilling performance is greatly influenced by the characteristics of drilling mud, such as density. The composition of mud constituents, including bentonite, has the potential to affect fluid density characteristics. This study aims to evaluate the effect of variations in bentonite concentration on the density of water-based drilling mud. The experiment was conducted using a laboratory approach with a mud balance on two mud samples with different bentonite compositions. The results showed that variations in bentonite concentration did not produce significant changes in density, with both samples exhibiting relatively similar density values. This indicates that mud density is more influenced by weighting materials than by bentonite concentration. These findings provide insight into the role of bentonite in drilling mud design. 
Karakterisasi Kinerja Formulasi Lost Circulation Material terhadap Efisiensi Pembentukan Impermeabel Barrier pada Kondisi Peningkatan Tekanan Diferensial Limbong, Samuel Sampe Tua Sauduran; Rahman, Muhammad Rizqie Fathan; Fitria, Debby Nur
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 2 (2026): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i2.57163

Abstract

Lost circulation in large-fracture formations is often driven by the inability of Loss Circulation Material (LCM) to maintain a stable barrier under increasing differential pressure. This study evaluates the effectiveness of various LCM formulations in forming and sustaining impermeable barriers within a 3000-micron slot. Secondary laboratory data from slotted disk tests at 200, 300, and 500 psi were analyzed using an ordinal scoring method to quantify performance. Results show that most formulations successfully create initial bridging at 200 psi; however, only multimodal combinations of granular (CaCO₃) and fibrous materials sustain sealing up to 500 psi. Blended organic cellulose fiber (BOCF) demonstrates superior performance compared to microcellulose fiber (MCF) due to better elasticity and particle interlocking. The findings indicate that LCM effectiveness depends on material synergy and particle size distribution rather than initial bridging alone. It is recommended to apply multimodal granular–fibrous formulations for severe loss conditions in large fractures. 
Co-Authors Huldiah, Huldiah Limbong, Samuel Sampe Tua Sauduran Rahman, Muhammad Rizqie Fathan Wiranto Wiranto