FILTRATION OF HYDROCARBONS BY POROUS CORE IN THE FIELD OF ACOUSTIC OSCILLATIONS

Abstract

Purpose. The task was to investigate the effect of acoustic oscillations on the filtration ofhydrocarbons by the core of a porous medium for different pressures. The paper present theresults of an experimental study of hydrocarbon filtration by a porous medium core in thepresence of acoustic oscillations with the frequency of 2,7 kHz. Porous sandstone cores with aheight of 18 mm and a diameter of 53 mm were studied. The core holder was filled with engineoil which contained a piezoelectric acoustic oscillator, the electrical signal to the emitter wasgenerated by a generator and amplifier. During the studied filtration, the core was located atthe bottom of the core holder, which was filled with liquid hydrocarbons, which were used asengine oil.The aim was to investigate the effect of acoustic oscillations on the filtration of hydrocarbonsin a porous medium. For this purpose, an experimental setup, amplifier and piezoelectricemitter of acoustic oscillations were made, sandstone cores were prepared, experiments wereperformed and the mass of the filtered liquid was estimated.Methodology. An experimental study of the effect of acoustic oscillations with a frequencyof 2.7 KHz on the filtration of hydrocarbons by a sandstone core for different pressures wasperformed in laboratory conditions. Amplified oscillations from the electronic generator wereapplied to the piezoelectric emitter located in the core holder, which was filled with motor oil,the pressure in the oil was changed using a reducer and manometers. The mass of core-filteredoil was measured by electronic scales.Originality. It has been established that acoustic oscillations effectively affect the filtrationof hydrocarbons in porous media and increase filtration by tens of percent.Findings and practical implications. Experiments have shown that acoustic oscillations ina porous medium filled with hydrocarbons increase the filtration of hydrocarbons. The use ofacoustic oscillations for processing around the filter space of wells will increase the flow rateof wells.Experiments have shown that in the presence of acoustic oscillation, the filtration of engineoil by the sandstone core increase by tens % relative to the amount of filtration in the absenceof acoustic oscillations.Relevance of the topic. Increasing the flow rate of wells is an important scientific andpractical task, its solution can be cleaning the filter zone from clogging and improving thefiltration of useful fluid Under the action of acoustic oscillations.Keywords: hydrocarbon filtration; porous medium; acoustic oscillations; well; around thefilter area; debit.