Vibroacoustic method for enhancing oil well productivity

The article presents an analysis of studies devoted to the application of the vibroacoustic method (VAM) for enhancing the productivity of oil wells. The relevance of this method is emphasized, especially under the conditions of low-permeability and water-flooded reservoirs in Kazakhstan. The main causes of reduced well productivity are discussed, including the colmatation of porous formations, blockage of fractures and pores, and the accumulation of insoluble salts and colloidal deposits in the near-wellbore zone. It is shown that traditional enhanced oil recovery (EOR) methods are often associated with environmental risks and high costs, while the vibroacoustic method is based on the action of elastic waves and does not require the use of aggressive chemical reagents. The efficiency of the VAM depends on the geological and physical characteristics of the reservoir, the well design, and the properties of the saturating fluids. Laboratory experiments are presented, confirming the potential for increasing oil recovery due to resonant interactions between elastic waves and filtration processes. The study highlights the need to improve the method by expanding the range of effective frequencies, increasing the influence radius of vibration sources, and developing practical recommendations for field applications. It is concluded that combining VAM with other EOR techniques can enhance well performance at later stages of development. Thus, the vibroacoustic method represents an environmentally safe, technologically efficient, and highly promising approach for increasing oil well productivity, with significant potential for industrial implementation.