ВСТАНОВЛЕННЯ БАЗОВИХ ПРИНЦИПІВ ФУНКЦІОНУВАННЯ ОКРЕМИХ ВУЗЛІВ ПРИСТРОЇВ ГІДРО(ПНЕВМО)МЕХАНІЧНОГО БУРІННЯ

• Datum: 2022
• 1. Verfasser: Ігнатов, А. О.
• Format: Artikel
• Sprache: Ukrainian
• Veröffentlicht: Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины 2022
• Schlagworte: гідро(пневмо)механічне буріння; гірська порода; вибій; свердловина; очисний агент; породоруйнівні кулі; механічна швидкість поглиблення; поверхнево-активна речовина
• Online Zugang: http://altis-ism.org.ua/index.php/ALTIS/article/view/253
• Назва журналу: Tooling materials science

A detailed consideration of existing and analytical and laboratory substantiation of innovative design solutions in individual units of the modernized hydro(pneumatic)mechanical devices was carried out. Determination of rational regime and technological programs for the operation of devices in specific geological and technical conditions for the construction of wells for various purposes was done on the basis of the indicated solutions. Experimental and theoretical studies of the elementary act of rocks destruction of significant hardness (taking into account the multifactorial action of the accompanying technical and technological factors) was carried out using modern methods of analytical analysis and research, in particular methods of mathematical and physical modeling, modeling techniques and processing of research results in SolidWorks, STATGRAPHICS, MATSAD environment, instrumentation and materials. The course of borehole rock-cutting processes was simulated on a special laboratory bench equipped with a control and measuring unit (flow meter, pressure gauge, tachometer, coordinator). The basic directions of improving the principles and schemes for the implementation of downhole technologies are formulated on the example of hydro(pneumatic)mechanical drilling. The main design characteristics of the modernized innovative pneumomechanical device for drilling wells for various purposes are considered. The indicated device combines the most productive and effective methods of influencing the rock mass. A number of defining technical, technological and operating factors, typical for the implementation of downhole hydro(pneumatic)mechanical methods, have been identified and investigated. The factors noted, in particular, include: the physical state of the well bottom, the type and parameters of the circulating cleaning agent, the rotational speed of the mechanical rock-cutting body and the axial load on the latter. It has been convincingly proven that the developed design diagrams of devices for hydro(pneumatic)mechanical drilling, with optimal performance and operational and technological development, can be recommended for use in the appropriate geological and technical conditions, where the implementation of other methods is irrational or limited. The technical and technological principles of the formation of the central and peripheral parts of the bottomhole are subordinate factors determined by the very design of the devices, the regime support of the latter, as well as the need to strictly adhere to certain parameters for the circulating environment. This, in combination, will allow obtaining a rational process of well profile formation. The main results of laboratory and analytical studies are the starting point for rational and reasonable design of the operating parameters of the well deepening process through the use of hydro(pneumatic)mechanical devices. The data on the study of the basic downhole working processes of hydro(pneumatic)mechanical technologies are the starting points for the development of optimal design and technological parameters of the modernized pellet impact drilling devices.