Authors: L.E. Mametyev, A.A. Khoreshok, A.M. Tsekhin, A.Yu. Borisov

Title of the article: Improvement of horizontal well drilling technologies and operating equipment of auger machines

Year: 2024, Issue: 3, Pages: 4-21

Branch of knowledge: 2.8.8 Mining machines, geotechnology (engineering)

Index UDK: 622.24.051.52

DOI: 10.26730/2618-7434-2024-3-4-21

Abstract: The paper presents the parameters of technological schemes, equipment and composition of operations when realizing the processes of pioneer drilling and expansion by backstroke of horizontal transition wells combined with the processes of their fixing by sectional casing pipes. Technical characteristics and results of operation of original designs of augering machines in different regions of Russia, made on the basis of serially produced units and mechanisms at machine-building plants of Kuzbass are given, which allows to approach the solution of issues on import substitution in mining and underground construction. The designs of walking feed mechanisms of forward and reverse stroke, as well as the working body of drilling auger machines are substantiated and developed, allowing to expand the application area and functional capabilities in the direction of reducing energy consumption and increasing productivity of the processes of destruction, loading and transportation of drilling products. The questions of unobstructed extraction of sectional auger drilling tools from the column of sectional inventory casing pipes and replacement of worn-out cutting tools on multibeam straight reamers with folding cutting groups without disassembly of the sectional auger drilling pack, and its return through the fixed string of sectional inventory casing pipes before the contact of the straight reamer with the surface of well face destruction are solved. The mechanism of folding and opening in radial direction of hinge-attached cutter groups of the straight reamer for unobstructed extraction at dismantling by reverse stroke and return of the sectional auger drill string to the face working space in assembled form at mounting by direct stroke is described. The structure of time expenditures for the fulfillment of operations of the working cycle of the auger drilling machine at one- and two-stage drilling technology with the use of hydraulic jacking step feed mechanism and mounted-dismountable working body is formed to determine their influence on the productivity of sinking processes.

Key words: auger machine mining feed mechanism reamer boring tool cutter rod auger borehole

Receiving date: 19.03.2024

Approval date: 09.09.2024

Publication date: 05.12.2024

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