Modelling of Environmental Risk Assessment for Typical Gas Industry Facilities. Maximov Viatcheslav Research Deputy Director, Oil and Gas Research Institute, Russian Academy of Sciences, Leninsky Prospect, 63/2, Moscow, 117917, GSP-1, Russia, telephone (+7-095) 1358076, fax (+7-095)1358876; and Dr. A. I. Gritsenko, Prof., General, Director of "VNIIGAZ"
The paper presents the main elements of environmental risk assessment procedure based on deterministic safety evaluation and probability analysis. The studies focus on the physical processes accompanying the typical accidents in gas industry, and corresponding mathematical models. Reliability of these models is an important part of risk assessment.
It's considered the development and ecological consequences of the following accidents:
On this basis, the package of correlated models was offered as software: non stationary gas flow after pipeline rupture; calculations of accidental well debits; flow of gas-liquid multi-component mixture in a pipeline including the thermodynamic calculations; models of gas impurity dispersion in turbulent atmosphere and in water flow.
These models are used for engineering projects in Russian gas industry to, estimate the environmental consequences of potential accidents and the different risks.
The paper is illustrated by some calculation examples, their application and technical contribution.
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