Marta Heru, Nover (2023) Pengaruh Ukuran Pasir Silika Terhadap Sifat Mekanik, Permeabilitas Dan Mikrostruktur Proppant. Other thesis, Fakultas Teknik Mesin.

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Abstract

Silica pellets are a product of composite ceramic technology made from reinforcement silica sand applied in the oil and gas industry as a proppant (frank sand) as well as water filters and the petroleum industry. This research aims to obtain the effect of silica sand size on strength pressure, permeability and microstructure. In this study, the size of silica sand the selected size of fine silica sand is (200 mesh) and coarse silica sand is (20 mesh) and bonded by polyethylene glycol (PEG) 400. Compressive strength test results the lowest was obtained in sample I which was 33.24 MPa while the compressive strength the highest was in sample III, which was 34.05 MPa. Because there are more and more grain size of fine silica pellets is able to provide interfacial bonds on polyethylene glycol (PEG) 400, with a smaller diameter makes it easier for bonds to occur in the matrix thereby increasing the strength value press. However, the permeability test is inversely related to the compressive strength where the highest permeability value was obtained in sample I which was 29.93 mD, meanwhile the lowest permeability value in sample III is 23.35 mD. This matter due to the relationship between the size of fine silica sand in the opposite direction coarse silica sand size. That is, if the grain size of fine silica sand increases and the grain size of coarse silica decreases, the permeability value decreases. Observation result microstructure in sample I shows fewer voids or porosity and create a stronger interfacial bond. Due to the grain size Fine silica sand is more dominant than the grain size of coarse silica sand and assisted by a binder in the form of polyethylene glycol (PEG) 400.

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