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Abstract

Summary

Wettability is one of the important parameters affecting the flow of fluid in a porous medium. Consequently, changes in wettability have been applied to increase the production of hydrocarbon reservoirs. This paper investigated the effect of microwaves on the wettability of a heavy-oil sample from a reservoir in southwestern Iran. For this purpose, the oil sample was exposed to microwaves using a Fischer assay at 5, 10, and 15 minutes in an environment free of oxygen and saturated with helium. Microwaving lowered the contact angle of the microwaved oil with oil-wet rock sample of the same reservoir from 104o to 71o. The microwaves reduced the oil’s tendency to spread over the rocks by affecting the sulfur (S), nitrogen (N), and oxygen (O) polar constituents and decreasing their amounts. Nitrogen decreased the most after 15 minutes of radiation (15.6%), followed by sulfur (14%) and oxygen (4.3%). Based on Fourier transform infrared (FTIR) results, cracking heavy compounds and creating lighter compounds due to microwave is another factor that changes the wettability of heavy-oil sample. The results of this study can be used as a representation of the use of microwave in hydrocarbon reservoirs to change the wettability and increase the production rate.

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/content/papers/10.3997/2214-4609.201800145
2018-04-09
2024-04-24

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Investigating Wettability Alteration of Heavy Oil Due to Microwave Radiation: Based on Changes of Polar Components
Conference Proceedings 2018, 1 (2018); https://doi.org/10.3997/2214-4609.201800145
/content/papers/10.3997/2214-4609.201800145
/content/papers/10.3997/2214-4609.201800145
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