Guntoro, Rivaldi (2025) Penanggulangan Permasalahan Water Coning Pada Sumur Esp Menggunakan Metode Analisis Laju Alir Kritis Chiericci Dan Penurunan Frekuensi Pada Variable Speed Drive. Other thesis, Universitas Islam Riau.

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Abstract

Over time, oil production in well “R” has decreased, currently well “R” has an actual flow rate of 490 BFPD with a water cut of 90%, consisting of an oil flow rate of 49 BOPD and a water flow rate of 441 BWPD, with the high water flow rate in this well, well “R” is indicated to be experiencing water coning problems. Water coning occurs when the actual production rate exceeds the critical production rate, which is the fluid production rate permitted by a well to be produced without coning, so that excessive production causes the flow pressure gradient to exceed the gravitational force, resulting in the penetration of the productive layer by water. The Chierici method is one method that can be used to calculate the critical production rate in the "R" well in order to determine whether the well being studied is experiencing water coning. The method used to overcome the water coning problem in this study is to reduce the flow rate by reducing the frequency on the Variable Speed Drive (VSD). Well “R” uses an artificial lif electric submersible pump with an actual production rate of 490 BFPD exceeding the critical production rate of 157.487 BFPD, so to overcome the water coning problem, the flow rate is reduced by reducing the pump frequency using a variable speed drive, the frequency recommended by the author is 19 Hz with a flow rate of 155.17 BFPD.

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