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3 results on '"Vasyl Bui"'

1. Laboratory research of the stress-strain state of the drill string in the local bend of the well

Author

Vasyl Mikhailovich Ivasiv, Vasyl Bui, Ruslan Rachkevych, Iryna Rachkevych, and Lidiіa Yurych

Subjects
Similarity (geometry), Drill, Bending (metalworking), business.industry, Borehole, local bend, 02 engineering and technology, Structural engineering, lcsh:Business, 021001 nanoscience & nanotechnology, Curvature, Drill string, 020303 mechanical engineering & transports, 0203 mechanical engineering, Personal computer, lcsh:Technology (General), drill string, lcsh:T1-995, stress-strain state, laboratory research, 0210 nano-technology, business, lcsh:HF5001-6182, Strain gauge, Geology
Abstract

The object of research is the operation of the drill string in the local bend of the well. One of the most problematic aspects in this case is the establishment of its stress-strain state. This is very important information, which, in particular, is used to make decisions on the duration and possibility of operating the drill string in a given geological and technical conditions. Based on a critical literature review, physical modeling of the object of study was chosen to solve this problem. In particular, a special laboratory stand was designed, manufactured and tested, which provides: load model of the drill string axial tensile force and torque; modeling of curvilinear axes of wells with possible local excesses, based on the results of industrial inclinometry and profilometry; measurement of stresses and deformations of the model of the column and their interpretation to the values of the natural object. As a model of a drill string, a copper tube with a weighting agent was used to provide criterial similarity with a full-scale object. To measure normal stresses on a drill string model, strain gauging was used. At the same time, analog voltage values on strain gauges are digitized and transferred to a personal computer for further processing and interpretation. With the help of the proposed laboratory stand, experimental studies of the stress-strain state of a 127-mm drill string model in a local bend of well No. 10 of the Odesa deposit (Ukraine) were carried out. It has been established that the normal bending stresses that arise in this case can more than three times exceed the same values obtained without taking into account the presence of the specified curvature of the borehole axis. Thanks to the proposed experimental method, it is possible to study the deformations and stresses that occur in the drill strings during their work in wells with local axial kinks. There is no need to apply complex analytical transformations and algorithms. In addition, the model has the same physical nature as the object of study. This is an extremely weighty argument, especially in the study of complex cases of interaction between the drill string and the borehole walls.

Published
2019

2. Information Support of Design Innovation Activity of the Technical University.

Author

Shkitsa, Lesya, Kornuta, Volodymyr, Kornuta, Olena, Bekish, Iryna, and Bui, Vasyl

Subjects
DOCUMENT imaging systems, INFORMATION design, SCIENTIFIC community, TECHNOLOGICAL innovations, INFORMATION architecture
Abstract

The problem of adaptation of educational space of technical university to modern market requirements is considered. There are described the results of studying the requests of higher education applicants and their vision of the success of the study. The aim of the article is to build an architecture of an information system similar to that used by modern enterprises, which will provide a combination of scientific, design and educational activities of the academic community, taking into account market needs. The main scientific research methods are bibliographic analysis, comparative analysis, methods of analogies. The conceptual architecture of the Information Support of Design Innovation Activity of the Technical University system based on the construction of a unified scientific and educational information space is described. The main task of the university's information space is to prepare students for activities of the real market. There are determined the necessity and limits of application of the modern access control system at the universities of Ukraine, in particular for the organization of independent work of students. There is offered the way to reach the 4th level of technological readiness of students 'and teachers' development. The construction of an ontological description of the subject area of a technical university, the development of the application of a grid model for the description of scientific and technical information, and the determination of the current technical status are defined as the basis of the system of setting tasks for project groups in the transition to project-oriented learning. The question of the appropriateness of using adaptive case management system as a basic concept of building electronic document management system is resolved. The use of the competence approach as a mechanism of stimulating technical creativity within the educational process and in the work of researchers from the University staff is considered. [ABSTRACT FROM AUTHOR]

Published
2020
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3. Advances in Design, Simulation and Manufacturing IV : Proceedings of the 4th International Conference on Design, Simulation, Manufacturing: The Innovation Exchange, DSMIE-2021, June 8–11, 2021, Lviv, Ukraine – Volume 1: Manufacturing and Materials Engineering

Author

Vitalii Ivanov, Justyna Trojanowska, Ivan Pavlenko, Jozef Zajac, Dragan Peraković, Vitalii Ivanov, Justyna Trojanowska, Ivan Pavlenko, Jozef Zajac, and Dragan Peraković

Subjects
Manufactures, Materials, Computer-aided engineering
Abstract

This book reports on topics at the interface between manufacturing and materials engineering, with a special emphasis on product design and advanced manufacturing processes, intelligent solutions for Industry 4.0, covers topics in ICT for engineering education, describes the numerical simulation and experimental studies of milling, honing, burnishing, grinding, boring, and turning, as well as the development and implementation of advanced materials. Based on the 4th International Conference on Design, Simulation, Manufacturing: The Innovation Exchange (DSMIE-2021), held on June 8-11, 2021, in Lviv, Ukraine, this first volume of a 2-volume set provides academics and professionals with extensive information on trends, technologies, challenges and practice-oriented experience in the above-mentioned areas.

Published
2021

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