Design and fabrication of microfluidic test kit for enhanced oil recovery in low salinity NaCl flooding
by Sanggono Adisasmito; Rhesa Muhammad Faisal
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 33, No. 2, 2023

Abstract: A microfluidic test kit with a flowrate capacity of 0.01-100 µL/min and pressure of 0-50 psig was designed and fabricated to test four series of salinity injections and subsequently compare the recovery factor (RF). Homogeneous rock patterns with PMMA material were used to create a microfluidic chip with a porosity of 27.8% and a permeability of 2.8 Darcy. The crude oil has an API of 31.9, while the formation water has 10,958 ppm in salinity. The injection solutions were NaCl with 600, 6,000, and 11,000 ppm salinity. The injection was then visualised and processed by a program in Python language to obtain saturation data and recovery factor. An increase in RF was observed in the NaCl injections with salinity lower than formation water. The highest RF, up to 30%, was generated from 600 ppm of NaCl injection. [Received: November 23, 2021; Accepted: August 7, 2022]

Online publication date: Wed, 17-May-2023

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