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Abstract

Summary

In this study, the effect of microwaves on asphaltene adhered to rock surface in porous media of PAZ oilfield in southwest Iran is addressed. The results of energy dispersive spectroscopy (EDS) of asphaltene deposits show that microwave reduced the weight of polar elements including sulfur (27%), oxygen (31%), and nitrogen (4.5%) have high potential in absorbing microwaves. The reduction of polar components occurs by cracking that deforms the asphaltene clusters in porous media. The scanning electron microscope (SEM) images show that the asphaltene structure is disrupted by microwave radiation and lose their continuity and compression. Also, the zeta potential of rock surface changed from -15 to -9 due to the severe decrease of O and S polar elements in asphaltene adsorbed on the rock surface. Based on Fourier transform infrared (FTIR) results, microwave reduces the intensity of O-H and CO2 bonds and increases the intensity of rock-related peaks, which shows lower adsorption and interaction of asphaltene with the rock. Based on the results of this study, microwaves can be considered as a new technology in the elimination of asphaltene deposits.

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/content/papers/10.3997/2214-4609.202011683
2020-12-08
2024-04-27

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Investigating the Impact of Microwave Technology on the Interaction between Asphaltene and Reservoir Rock Surface
Conference Proceedings 2020, 1 (2020); https://doi.org/10.3997/2214-4609.202011683
/content/papers/10.3997/2214-4609.202011683
/content/papers/10.3997/2214-4609.202011683
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