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Estimation and Reduction of Methane Emissions at the Scheduled and Repair Outages of Gas-Compressor Units

Strizhenok Alexey V., Korelskiy Denis S.

Journal of Ecological Engineering

2019

Vol. 20, nr 1

46--51

Assessment of the negative impact on the components of the natural environment during the scheduled and repair outages of gas-compressor units in transportation the process of the natural gas was the purpose of the performed scientific work. The results of the monitoring studies, in which the methane concentrations were measured in the atmospheric air near the source of pollution and on the border of the sanitary protection zone during volley emissions of natural gas into the atmosphere, are presented in the article. In addition, a method that eliminates the release of the natural gas into the atmosphere during the scheduled and repair outages of gas-compressor units are suggested in the article. The method is based on the redistribution of gas flows and the direction of natural gas to the gas distribution station. Volley emissions of methane into the atmosphere will completely eliminated as a result of implementing this method. The proposed technical solution is aimed at reducing the negative impact on atmospheric air near gas compressor stations. Moreover, the proposed method is able to minimize the economic damage to gas companies because of the loss of marketable products.

Formation of estimates of reliability indicators for active elements in gas transport systems on the basis of refusals statistics

Grigoriev L., Kucheryavy V., Rusev V., Sedyh I.

Journal of Polish Safety and Reliability Association

2014

Vol. 5, No. 2

41--47

The problem of equipment functioning reliability in gas transport systems is extremely urgent. This article deals with the algorithm of estimation and prediction of reliability factors of gas-compressor units and automatic systems, which uses statistical information about elements failures as input data. This algorithm is based on methods of mathematical statistics and regression analysis and provides the opportunity to obtain predictive estimate of failure rate, time between failures and availability function. In addition, the article describes the outcome of algorithm action, disagreement between industrial data about systems functioning and technical specification of these systems.