Аңдатпа
Purpose. The work is aimed at determining the efficiency of the technology of equipping the water intake part of a hydrogeological well with an inverse gravel filter and the economic efficiency of performing work using the proposed technology. Methods. The tasks were solved using a comprehensive research method, which included analysis and generalization of geological and technical information, physical modeling, and experimental research and development. Findings. Production tests of the technology of equipping hydrogeological wells with inverse gravel filters has been carried out, which confirmed the effectiveness of the developed and tested technology. The technology of manufacturing inverse gravel filter elements has been tested in production conditions. There has been shown the possibility of using the developed technologies for manufacturing an inverse gravel filter element and transporting an inverse gravel filter along the borehole of hydrogeological wells during their construction with a depth of more than 200 m, using standard drilling technological equipment and tools. Originality. For the first time, there has been substantiated the use of a water-based mineral binder containing an organic polymer – technical gelatin – for the monolithization of loose gravel material in production conditions into a block structure of a gravel filter of a borehole. For the first time, there has been demonstrated the possibility of equipping the water-receiving part of hydrogeological wells, in fine-grained and fine-grained sands, with inverse gravel filters using the proposed technology. Practical implications. As a result of experimental and production tests, there has been confirmed effectiveness of the developed technology for manufacturing inverse gravel filter elements and transporting the inverse gravel filter along the wellbore. During the tests, the following aspects have been determined: costs for manufacturing prototypes of inverse gravel filter elements; costs for equipping the water intake part of a hydrogeological well with inverse gravel filters; well productivity; economic indicators of the technology for equipping hydrogeological wells with filters using the proposed technologies.