Influence of Frequency of Wave Action on Oil Production

Abstract

When elastic waves act on rocks, the structure of the void space changes. The nucleation and formation of new cracks is possible. Wave action technologies are divided into two groups: with a frequency of less than 100 Hz and a frequency of more than 1 kHz. In the intermediate zone, no completed works and studies of wave action were found. The paper studies the results of the impact of elastic waves with different frequencies and amplitudes on oil production. With low-frequency exposure, an increase in permeability values is noted to a greater extent due to the appearance of new and an increase in the size of existing cracks. With high-frequency exposure, the viscosity of reservoir oil is greatly reduced. The greater the value of the initial viscosity, the more intense it decreases when exposed to highfrequency waves. For the Perm Territory, a comparison was made of the results of wave processing of production wells depending on the frequency of exposure. As the impact frequency increases, the average oil recovery after wave treatment decreases. With an increase in the frequency of exposure, the duration of operation of a well with increased oil production after wave treatment decreases. Models have been obtained to predict the time of operation of wells with additional oil production, additional oil production and an increase in oil production rate of wells after wave action. As a result, it can be noted that the most effective technologies are those with a lower frequency, but a large amplitude of exposure.

Scientific and Methodological Support of Sand Management During Operation of Horizontal Wells

“…An increase in the gas fraction, on the contrary, leads to a decrease in SSC (Figure 2). At the same time, the SSC naturally decreases, primarily due to the formation of arched systems near the holes of the screen (14,32,(54)(55)(56)(57)(58). The scheme of the arch system is shown in Figure 3.…”

Study on Application of Arps Decline Curves for Gas Production Forecasting in Senegal

“…The studied equations take into account the state of rocks near the borehole wall in the initial state. During the operation of a well, various phenomena can occur in the reservoir that change the permeability [26][27][28]. The change in permeability in the initial period is associated with a decrease in pressure in the reservoir and rock deformations [29,30].…”

Prediction of the Efficiency of Hydraulic Fracturing Based on Reservoir Parameters

“…One of the most common local methods of stimulation is hydraulic fracturing. Recently, hydraulic fracturing has found wide application in wells, the effectiveness of which in most cases has been proven theoretically and practically, and it is difficult to find appropriate solutions [4][5][6].…”