REMOVING RESIDUAL OIL BY INJECTING A SOLUTION-AIR COMPOSITION THROUGH A NEW INJECTOR INTO THE WETTED FORM

Abstract

In the literature, the physical mechanism of the method of increasing the oil yield of the formation by means of elastic waves is indicated by various terms: vibrating, acoustic, elastic, pulsed, seismoacoustic, etc. We will talk about a general term that illuminates them in their physical essence - the method of wave action. Until now, some industrial-experimental application of the wavy impact method has been carried out in the fields of the former USSR and foreign countries. The wave field is divided into two parts according to the value of the generation frequency - the low-frequency effect of the method (up to 1 kHz) and the high-frequency effect of the method (higher than 1 kHz). The conversion of the first generated energy, the vibrating wave, into elastic energy is divided into mechanical, hydraulic, gas-pneumatic, electromechanical, etc. The use of this and other modifiers is chosen depending on the type of determined method of influence (increasing oil yield, intensification of filtration and reception), the geological and technical condition of the field and individual wells, and most importantly, the expected technical and economic effect. The wave effect is carried out near the selected area of the formation from the ground surface and the wellhead, using special vibration and impulse sources. The main issue of the acceptance of the wave effect method is the understanding of the physical process of elastic wave radiation in a porous medium saturated with formation fluids. Abasov MT, Hadiyev SM, Mirzajanzade AX, Krylov AP, Khavkin AY, etc., are the main works of this issue. carried out by the authors, it was possible to reveal the physical meaning of the processes taking place in the layer. Many modern oil recovery methods, such as the wave effect method, help to reduce the influence of some factors that make oil extraction difficult. However, they do not take into account the fact that they are not applied in time and that natural hydrocarbon fluids move under the influence of gravitational effects and capillary forces, which leads to a decrease in technical and economic indicators. Keywords: injector, diffuser, elastic waves, generation, frequency effect.