ДОСЛІДЖЕННЯ ТЕХНОЛОГІЧНИХ ОСОБЛИВОСТЕЙ РЕАЛІЗАЦІЇ ГІДРОМЕХАНІЧНОГО СПОСОБУ БУРІННЯ
Purpose. Analytical-laboratory and bench study of the main regularities of the functioning of rock-breaking organs of hydro (pneumatic) mechanical drilling devices in rocks of different strength indicators and the development on their basis of rational technical and technological regulations for the...
Збережено в:
| Дата: | 2023 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | Ukrainian |
| Опубліковано: |
Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины
2023
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| Теми: | |
| Онлайн доступ: | http://altis-ism.org.ua/index.php/ALTIS/article/view/304 |
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| Назва журналу: | Tooling materials science |
Репозитарії
Tooling materials science| Резюме: | Purpose. Analytical-laboratory and bench study of the main regularities of the functioning of rock-breaking organs of hydro (pneumatic) mechanical drilling devices in rocks of different strength indicators and the development on their basis of rational technical and technological regulations for the construction of exploration and production wells with high rates of deepening.
Methods. The study of the features of the functioning of hydro (pneumatic) mechanical drilling devices was based on the use of complex analytical and laboratory methods. The study of the processes of destruction of rocks of various hardness was carried out using modern methods of analytical analysis and experimental research, in particular, by using the methods of mathematical and physical modeling, methods for processing research results in software support SolidWorks, STATGRAPHICS, MATHCAD, instrumentation and corresponding to the original task materials.
The course of solving the problems of optimal planning of the experiment was divided into the following stages: drawing up a model; preparation of the necessary initial data; model calculation; getting results.
The flow of borehole rock-cutting processes was simulated on a special laboratory stand equipped with a control and measuring unit (flow meter, pressure gauge, tachometer, coordinate recorder).
The parameters of the process of adsorption of active substances from aqueous solutions on the surface of the studied rocks were studied on their powders, for which the optimal ratio between the mass of the solid phase and the volume of the solution was experimentally determined, as well as the time for establishing adsorption equilibrium. The values of the adsorption parameter were calculated by measuring the optical density of the test solution before and after the corresponding interaction when monochromatic light was passed through it.
Findings. Modern directions of research and design work in the field of widespread introduction into drilling business of elements of physical methods of rock mass destruction are considered. Regarding the features of the structural and technical implementation of individual units of the devices under consideration, the main technological factors of their rational functioning in various well conditions are reflected. Detailed studies have convincingly proved the existence of a close relationship between the factor of the presence of a dynamic component for the axial load on the rock cutting tool and the possible intensification of destruction processes. Specific examples show the leading role of individual properties of the drilling fluid in the implementation of the conditions for enhancing the efficiency of the destruction processes. It has been convincingly proven that since the main factor in hydro(pneumo)mechanical drilling is a significant degree of development of destruction processes, that is why their intensification can be achieved due to the directed physical and chemical action of the surface-active medium. Experimental studies have been carried out to study the development and results of surface interactions - adsorption at the phase boundary, as the main factor in the sustainable destruction of the rock mass.
Originality. The main factors for the rational functioning of hydro (pneumatic) mechanical drilling devices in rocks that differ in strength indicators are the observance of a certain, quite technologically determined regulation, based on the use of optimal designs of a rock cutting tool and a justified, from the standpoint of the physicochemical theory of the interaction of various phases, a hydraulic program well flushing.
Practical implications. The presented results of laboratory and experimental studies (in relation to the mechanism of disintegration and surface physical and mechanical processes) are basic for designing the regime parameters of the program for the destruction and flushing of wells for hydromechanical drilling, in addition, they refer to the main initial data used in substantiating the design and technical technological characteristics of the corresponding upgraded devices. The obtained results of the research serve as the basis for the reasonable design of the regime parameters of the deepening of the well through the use of hydro (pneumatic) mechanical devices and can serve as starting points for the development of optimal design and technological parameters of the devices under consideration. |
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