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All Journal Journal of Petroleum and Geothermal Technology
M Aslam Md Yusof
Universiti Teknologi PETRONAS
Earth & Planetary Sciences Energy Engineering

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Modeling the Combined Effect of Salt Precipitation and Fines Migration on CO2 Injectivity Changes in Sandstone Formation M Nabil Ziaudin Ahamed; Muhammad Azfar Mohamed; M Aslam Md Yusof; Iqmal Irshad; Nur Asyraf Md Akhir; Noorzamzarina Sulaiman
Journal of Petroleum and Geothermal Technology Vol 2, No 2 (2021): November
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v2i2.5421

Abstract

Carbon dioxide, CO2 emissions have risen precipitously over the last century, wreaking havoc on the atmosphere. Carbon Capture and Sequestration (CCS) techniques are being used to inject as much CO2 as possible and meet emission reduction targets with the fewest number of wells possible for economic reasons. However, CO2 injectivity is being reduced in sandstone formations due to significant CO2-brine-rock interactions in the form of salt precipitation and fines migration. The purpose of this project is to develop a regression model using linear regression and neural networks to correlate the combined effect of fines migration and salt precipitation on CO2 injectivity as a function of injection flow rates, brine salinities, particle sizes, and particle concentrations. Statistical analysis demonstrates that the neural network model has a reliable fit of 0.9882 in R Square and could be used to accurately predict the permeability changes expected during CO2 injection in sandstones.
Co-Authors Iqmal Irshad M Nabil Ziaudin Ahamed Muhammad Azfar Mohamed Noorzamzarina Sulaiman Nur Asyraf Md Akhir