Kopei V. Scientific and methodological bases of computer-aided design of equipment for a sucker rod pumping unit

The dissertation is devoted to solving the current scientific and methodological problem of the effective design of the equipment of a sucker-rod pumping unit (SRPU) with integrated operability. The object of research is the SRPU equipment design. The principles of constructing statistical models of sucker rod string failures and parametric simulation models of SRPU equipment have been developed, in particular: component-oriented models of SRPU in Modelica and Python languages; finite element models of threaded connections of downhole equipment, press connection of a fiberglass rod, rods and pipes with defects and fiberglass bandage; hydrodynamic models of a sucker rod protector and the downhole pump valve. Based on the interdisciplinary analysis of regularities of complex systems, an abstract model of the information system for equipment design and SRPU life cycle support has been developed and principles of its implementation in the form of a multi-agent system with models and a knowledge base have been proposed. The ways of research and improvement of SRPU equipment, optimization and rational choice of the values of its parameters are proposed. The scientific novelty of the results consist in the development of a methodology for the computer-aided design of equipment for a SRPU with integrated operability, which is based on the principles of systems theory and integrated in the information system simulation models of equipment, statistical models of failures and a knowledge base. The practical significance of the obtained results consists in the development of information system components and recommendations for improving the equipment of SRPU. The information system for the SRPU lifecycle support, as open source software, was introduced at "Dolynanaftogaz" Oil and Gas Production Department in order to improve the quality of the SRPU's operation and ensure its integrated operability.