Analisis Kerusakan Formasi Dan Performa Sumur Injeksi Pada Kegiatan Waterflooding Menggunakan Metode Hall Plot

Puspitasari, Dara Ayu (2022) Analisis Kerusakan Formasi Dan Performa Sumur Injeksi Pada Kegiatan Waterflooding Menggunakan Metode Hall Plot. Other thesis, Universitas Islam Riau.

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Abstract

To find out the performance and problems in this well, it is necessary to do an analysis because the problems that occur in the injection well will affect the waterflooding work. This is because the injection of water that occurs in the well is not in accordance with what is applied because in the injection well there is a blockage in the perforation hole. To analyze and evaluate it is necessary to do an injectivity test using the Hall Plot method by making a plot line between the cumulative water injection and the reservoir pressure multiplied at a certain time. Based on surveillance and monitoring analysis, the water injection rate decreased while the wellhead pressure increased. Meanwhile, based on the hall plot, there was a significant increase from the straight line, indicating that the DA#01 injection well experienced wellbore plugging. Further analysis showed that the injection radius was 349.17 feet. Slope undamaged and slope damaged are 0.13 and 0.48, respectively. Transmibility undamaged and transmibility damaged were 277.39 and 75.69, respectively. The Hall plot and Darcy's skins are 19.17 and 11.35, respectively, indicating formation damage. And the injectivity index of 0.60 indicates the well needs to be stimulated.

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