Bodachivska L. Graf-operator modelling and multicriterial optimization of tehnological systems for wells killing

The dissertation is devoted to implementation of methods of system analysis and graf-operator modeling for solving problems of complex multicriterial optimization of tehnological systems for wells killing by creation of set of environmentally safe systems.The developed mathematical models methods and algorithms for multicriterial optimization are implemented for construction of an information system for the tehnological systems for well killing optimithation.It is shown, that, unlike traditional approach, the developed methods enable to conduct the operative in real time search for optimal decisions under incomplete data at any changes of the tehnological system components providing an objective estimation the attained technical level and its economical efficiency. Metods for improvement of the quality of technological systems under minimal nomenclature of their components are developed. The implementation of the developed complex technology allows to shorten time of killing of wells at average by 3,5once more and additionally extracted from 5,0 mln.m3 gas per single extraction operation. A total actual economic effect from the use of this technology on three wells in Yambourg gas-condensate field made 400 000 UAH.