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Uji Laboratorium: Analisis Berat Lumpur Pemboran Pada Sumur Can Wahyuni, Viola Sri; Fathan, Muhammad Rizqie; Ulfah, Baiq Mabulinda
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 : Perencanaan High-Performance Water-Based Mud Untuk Mencegah Lost Circulation pada Trayek 17,5 inch Sumur Moon Pebriana, Cindy; Fathan, Muhammad Rizqie; Ulfah, Baiq Maulindah
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.v8i4.50265

Abstract

Drilling mud plays an important role in 17 ½ inch track operations that often pass through reactive shale formations and fractured zones. This study was conducted to determine whether the High-Performance Water-Based Mud (HPWBM) formulation with KCl-Polymer and polyamine, as well as the addition of Lost Circulation Material (LCM) in the form of CaCO₃ and Fracseal, is capable of maintaining the rheological properties of mud under these conditions. The combination of CaCO₃ and Fracseal proved effective in reducing lost circulation and maintaining mud rheology. These results are in line with recent studies emphasizing the importance of using bridging materials and polymer additives in overcoming fracture rheology problems in intermediate trajectories. Laboratory test results showed a Mud Weight of 10.9 ppg, Plastic Viscosity of 29 cP, Yield Point of 37 lb/100 ft², and Low Shear Yield Point of 12 lb/100 ft². These parameters are within a good range to support cutting removal and fracture closure. The gel strength value of 14/28 lb/100 ft² and API Filtrate of 3.8 mL/30m also indicate that the mud is capable of forming a dense and stable filter cake.
Uji Laboratorium: Analisis Nilai Filtrat High Pressure Water Based Mud pada Sumur Sunset Hutabarat, Romauli Tiurma; 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.v8i4.50275

Abstract

Drilling mud filtration plays an important role in maintaining wellbore stability and preventing excessive fluid loss during the drilling process. If uncontrolled, filtration can damage formations and disrupt operations. This study discusses the effectiveness of High-Pressure Water-Based Mud (HPWBM) with the addition of CaCo3 and Fracseal as an effort to reduce filtration and form a good mud cake. The purpose of this study is to evaluate the filtration performance of HPWBM in various well sizes under HighPressure High-Temperature (HPHT) conditions. This test was conducted in accordance with API standards ( 10 ml/30 minutes). The results show that the filtration rate for the 26“ trajectory is 4.6 ml/30 minutes, the 17-1/2” trajectory is 3.8 ml/30 minutes, the 12-1/4“ trajectory is 4.0 ml/30 minutes, and the 8-1/2” trajectory is 2.4 ml/30 minutes. All values were below the API limit, with a decreasing trend at greater depths. This study confirms that HOWBM with CaCo3 and Fracseal can control filtration, maintain well stability, and improve drilling efficiency and safety.