Abstract
The goal is to develop technologies intended for long-term equipping of operational wells of various purposes with systems for mechanical purification of liquid and gaseous mineral resources in productive horizons located at any depth, represented by medium-grained, fine-grained, silty, and dusty sands. The work uses methods of analyzing innovative technologies and materials, generalizing scientific and technical achievements in various fields of economic activity, as well as synthesis and physical modelling of systems for mechanical purification of liquid and gaseous mineral resources. The joint developments of the Kazakh National Research Technical University named after K.I. Satpayeva and the Dnipro University of Technology are presented, focusing on technologies for constructing systems for mechanical purification of liquid and gaseous mineral resources in productive horizons located at any depth, represented by medium-grained, fine-grained, silty, and dusty sands. For the first time, the use of water-based binding materials containing organic polymers for solidifying loose gravel material into a block structure of a gravel filter for mechanical purification systems of operational wells has been justified. For the first time, the possibility of equipping the intake part of hydrogeological wells in medium-grained, fine-grained, silty, and dusty sands with mechanical purification systems featuring removable casings and sealing systems has been substantiated. It lies in the development of: recommendations for selecting parameters of technologies for equipping hydrogeological wells with systems for mechanical purification of liquid mineral resources at the level of inventions of fundamentally new technologies for equipping the productive part of wells with gravel filters, the implementation of which, compared to traditional technologies, reduced the cost of well equipment by 0.6 to 1.0 thousand USD for wells with a depth of up to 100 meters.