Erikson, Erikson (2025) Uji Pengaruh Penambahan Nanosilika Pada Lumpur Water Base Mud Terhadap Rheology Dan Filtration Loss Lumpur Pemboran. Other thesis, Universitas Islam Riau.

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Abstract

The key to the success of drilling operation completion lies in the drilling mud that is carefully selected and designed. The characteristics of the drilling mud, particularly its rheological properties, must always be controlled in order to successfully carry out its tasks. Silica nanoparticles are one of the most commonly used additives to form nanofluids due to their ability to reduce water invasion in shale and control rheology and filtration. This study aims to observe the effect of adding nanosilica additives on the rheology of drilling mud, namely: density, plastic viscosity, yield point, gel strength, filtration loss, and mud cake. This study used two particle sizes of nanosilica, namely 8.6 nm (NS I) and 20 nm (NS II), as well as two variations of nanosilica concentrations, namely 0.13% and 0.20%. The results of the study indicate that the addition of nanosilica additives to water-based drilling mud improves rheological values and reduces filtration loss. The 8.6 nm silica nanoparticle size had a greater effect on improving the rheology of the mud compared to the 20 nm size. Meanwhile, the 20 nm nanosilica was more effective in reducing filtration loss. For the 0.20% nanosilica concentration, the increase in rheology was greater than at the 0.13% concentration. This rheological increase remained within the API standard range. The 0.20% concentration was also more effective in reducing filtration loss, and the mud cake thickness was more optimal, resulting in lower filtrate volume and producing a mud cake within the API standard range.

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