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All Journal Scientific Contributions Oil and Gas
Dina Asmaul Chusniyah
University of Chinese Academy of Science and Universitas Trisakti
Chemical Engineering, Chemistry & Bioengineering Energy

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Optimization of Alternative CMC Sources from Rice Husk, Sawdust, and Caustic Soda, and The Effect of PH Increase on Filtration Loss and Rheology of Drilling Mud Lisa Samura; Cahaya Rosyidan; Mustamina Maulani; Andry Prima; Maman Djumantara; Dina Asmaul Chusniyah; Aqlyna Fattahanisa; Bayu Satiyawira; Mentari Gracia Soekardy; Brilliani
Scientific Contributions Oil and Gas Vol 48 No 4 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i4.1849

Abstract

Drilling mud plays a vital role in maintaining wellbore stability, carrying cuttings, and controlling formation pressure during drilling operations. Typically, Carboxy Methyl Cellulose (CMC) is used to enhance mud viscosity and reduce filtration loss, but its synthetic nature makes it relatively expensive. This study investigates rice husk and sawdust as natural, cost-effective alternatives to CMC. Various compositions were evaluated using the Box-Behnken design in Response Surface Methodology (RSM) to optimize the mud formulation. Results indicate that a combination of 6 g rice husk and 6 g sawdust provides the best performance in improving rheological properties such as yield point and gel strength, while significantly reducing filtration loss. Gradual addition of caustic soda (NaOH) effectively increases mud pH to the ideal range (9–11), enhancing chemical stability. RSM successfully modeled the statistical relationship among variables and facilitated identification of the optimal formulation.
Co-Authors Andry Prima Aqlyna Fattahanisa Bayu Satiyawira Brilliani Cahaya Rosyidan Maman Djumantara Mentari Gracia Soekardy Mustamina Maulani Samura, Lisa