No abstract

The subject of research and development is the technology of directional laying of engineering horizontal inclined wells intended both for exploration drilling and for laying engineering communications by the method of static puncture, as well as installations for their implementation. Laying engineering communications in urban and industrial environments is a common problem, and the existing technologies do not fully meet the increased requirements for the accuracy of working out the specified trajectories and efficiency of wells development. Laying engineering communications through water barriers is a special issue. The proposed method is based on the prompt installation of the forward end of the whipstock barrel in the required position for controlled correction of the trajectory of the well being laid. The main disadvantage of existing methods is the use of only passive trajectory control of the working body and the absence of control systems for the main processes of laying wells. The proposed system includes a guided barrel, a computerized control and management system being the basis for developing a technology for laying directional wells of small diameter and complex profile. The considered technology is the simplest and most economically profitable in comparison with drilling and punching. The possibility of using the described developments including for the purpose of directional drilling has been substantiated.

The paper gives the analysis of the volume of transportation of bulk mineral cargoes by water transport. It is established that the problem of the use of technological processes for sorting non-metallic building materials and coals transported by water transport is relevant. It is revealed that in the applied beneficiation system of crushed stone it is possible to reduce energy consumption due to the segregation of material into commercial fractions at the crushing stage by combining operations. The developed design of the receiving - segregation hopper is considered which allows classifying the feedstock at the initial technological stage of the production of crushed sandstone. A patented design of a segregation hopper and a technological scheme with its use are described. The volume of material sent to the crushing process is reduced by up to 50% due to the separation of particles of commercial fractions, which helps to reduce the production cost of a unit of the finished product. The principle of operation of the hopper is based on the difference in the rolling speed of particles of various sizes. The influence of the geometrical parameters of the chute and the size of the initial material on the capacity of the hopper is investigated. The influence of the slope angle of the chute and the particle size on the production parameters of the installation is proved. The configuration at which the drain wall achieves the highest throughput is determined.