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Vlianie vysokocastotnyh elektromagnitnyh polej na process adsorp'cii asfal’tenov

Kovaleva L. A., Kamaltdinov I. M., Zamula U. S., Stepanova Z. U., Haritonova I. V.

Prace Naukowe Instytutu Nafty i Gazu

2012

nr 182 wyd. konferencyjne

639--644

The experimental results of the polar hydrocarbon adsorption in saturated porous media after radio-frequency (RF) electromagnetic (ЕМ) influence and the thermal heating for comparison are presented. Temperature dependences of the extracted volume of hydrocarbons from models are shown. Comparing the obtained data an additional influence of RF ЕМ field on the desorption of asphaltenes from the porous media surface has been found, that leads to an increase of the extraction of hydrocarbons from the models. The thermodynamic substantiation and mathematical modeling of heat and mass transfer in а saturated porous media under RF ЕМ influence are used as the basis of theoretical study. The equation of sorption kinetics based on the Henry's Law including а summand that represents the contribution of thermal and ЕМ fields is to be considered. Researches have discovered that the adsorption process slows down under RF ЕМ field influence, which has а positive effect on the filtration ability of the saturated rock. Investigation of the field influence on the asphaltene adsorption process using atomic force microscopy (AFM) was conducted to identify the mechanism of adsorption and desorption of polar components on the surface of the porous medium under the RF EM field influence.

Primenenie SVC i VC izlucenia dla deemul’sacii nefti

Kovaleva L. A., Fathullina U. I., Musin A. A., Zinnatullin R. R., Blagocinov V. N., Ahatov I. S.

Prace Naukowe Instytutu Nafty i Gazu

2012

nr 182 wyd. konferencyjne

887--890

The problem of water-in-oil emulsion destruction is related to many technological processes in the oil-and-gas industry, especially in extracting and processing of oil, preparation and transportation of oil, and liquidation/recycling of oil-sludge barns. High stability of water- -in-oil emulsions is conditioned by the oil high-molecular polar components which cover water droplets and form armor envelope, and that prevents coalescence of the droplets. The usage of conventional techniques to destroy the emulsions yields gives no positive results. The employment of electromagnetic (EM) field energy is one of the ways to solve this problem. To study the EM action on the water droplet surrounded by a dielectric liquid the system of heat and mass transfer equations within the droplet and in the surrounding liquid is considered. A mathematical model of temperature distribution within a single droplet and surrounding liquid under the action of microwave electromagnetic radiation is formulated. The problem is solved numerically taking into account the thermal motion of the fluid within the water droplet and in the surrounding liquid. It is shown that the radiation induced heating of the droplet and the surrounding liquid is non-uniform. The results can help to understand the physical mechanisms of water-in-oil emulsion destruction in EM field.

Elektromagnitnye tehnologii v neftegobyce i neftanoj ekologii

Kovaleva L. A., Nasyrov N. M., Davletbaev A. A., Halilov I. V.

Prace Instytutu Nafty i Gazu

2006

nr 137

845-850