Kurniawan, Haris (2026) Analisis Variasi Phase Angle Dan Densitas Perforasi Untuk Meningkatkan Efisiensi Keberhasilan Perforasi Sumur Q 01 – Q 08 Dilapangan Z Dengan Pendekatan Simulasi Menggunakan Pipesim. Other thesis, Universitas Islam Riau.

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Abstract

Field Z is a mature oil field experiencing declining productivity due to decreasing reservoir pressure, increasing water cut, and potential formation damage that restricts fluid flow into the wellbore. One method commonly applied to enhance production in mature fields is reperforation in newly identified prospective zones. However, perforation effectiveness is strongly influenced by design parameters such as phase angle and perforation density (shots per foot/ Spf), which directly affect skin and production rate. This study aims to analyze the impact of varying phase angles (30°, 60°, 72°) and perforation densities (12 Spf, 6 Spf, 5 Spf) on skin value and production rate (Q) in eight wells of Field Z. The evaluation was conducted using PIPESIM simulation, followed by statistical analysis including average, standard deviation, and trend interpretation related to reservoir parameters such as permeability. The study is limited to the technical effect of perforation configuration and excludes economic considerations. Simulation results show that perforation design variations significantly influence well performance. Overall, the 30° phase angle with the highest perforation density (12 Spf) produced the lowest skin and highest production rate across most intervals and wells, indicating improved reservoir–wellbore connectivity. Meanwhile, the 60°/6 Spf and 72°/5 Spf configurations showed higher skin and reduced Q as perforation density decreased. This behavior is more pronounced in low-tomoderate permeability zones, suggesting that the combination of high SPF, small phase angle, and lower permeability provides optimal perforation efficiency. Based on the overall interpretation, the best perforation configuration for Field Z is 30°/12 Spf, as it consistently delivers the lowest skin and highest production across all wells. The findings can support reperforation decision-making and serve as a technical reference for future studies assessing perforation design using simulation and statistical approaches

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