Forecasting Repair Work on Gas Pipelines Under a Centralized Service System

Abstract

The management process of the gas-main pipelines' technical state that includes different-type constituent elements and has a complex multihole and looped structure is considered. The task falls under the optimization category of the maintenance process. The study aims to optimize the preventive overhaul graph of the gas supply system that includes independent subsystems. An optimum schedule of maintenance service will be determined by selection condition of the timepoint values that provide with the quality indicators' extremum of the functioning of the process facility complex within a centralized service of gas supply system. It was suggested the technical-and-economic index, in particular the average summarized unit costs to system operation, be used as a criterion for the optimality of maintenance process. The characteristic curve obtained from conducted studies provides a way to estimate the maintenance states of the complicated gas supply system that includes different-type, geographically distributed but functionally interlinked process facilities of the gas supply system in the region of the central maintenance and repair base, they give an opportunity to plan an optimum schedule of the preventive overhaul of the gas supply system.

Cyber-Physical System for Diagnostic Along the Controlled Section of the Oil Pipeline

“…A single leak detection mechanism cannot exclusively monitor the entire pipeline network due to certain limitations in the application of each method and due to the properties of the oil transported through the pipeline. There are many scenarios for a leak in a pipeline, such as multiple leaks, the location of the leak, and the size of the leak [12] [13]. It is worth noting that the fusion of two methods based on different operating principles allows the detection of leaks with higher accuracy.…”