A study of the technology of acoustic-chemical impact on various horizons of the reservoir to intensify oil production using the example of the Verblyuzhye field in the Astrakhan region

The article analyzes various options for acoustic and chemical effects on various horizons of the reservoir to intensify oil production using the example of the Camel field in the Astrakhan region. In conditions of depletion of light oil reserves, the importance of hard-to-recover reserves, characteristic of fields such as Camel in the Astrakhan region, is increasing. Its oil has a high viscosity and a significant content of paraffin, and the productive formations have heterogeneous reservoir properties. The main problem is the colmatation of the bottom-hole zone of the formation, which reduces its filtration and capacitance properties, which makes traditional methods of mining intensification ineffective. The first research on this technology appeared in the 1960s. The gradual development of technology, the refinement of acoustic impact parameters and the development of more effective chemical reagents have led to the possibility of using this technology in the field development process. Since the early 2000s, specialized equipment has been available for use on different types of formations and in different conditions. All these improvements make it possible to effectively use this technology in fields with difficult oil production conditions, highly viscous and difficult-to-recover oil. The article describes a method for studying the acoustic and chemical effects on the core in the laboratory. The description of the method makes it possible to repeat it in other fields with different oil reservoir conditions and oil characteristics. The effectiveness of technology with various chemical reagents and different frequency and power of acoustic exposure is analyzed and draws conclusions about the optimal mode of exposure to the productive reservoir of the Camel deposit in the Astrakhan region.