Studying safety and risk management in the gas transmission system using GIS technology

Abstract

In this current research, the combination of gas transportation system in line with analytical process was applied to conduct an assessment on the risk management of gas transferring pipe lines. By this process, classification and qualification of the numerous types of transportation risks would be accessible. Index and transportation index indicate risk probability and risk severity, respectively. In this regard, total risk is calculated based on the multiplication of all risk probability using geographical information systems (GIS) classified risks that have been throughout the pipeline route using attributive information. This information also gave database alternative monitoring of gas transportation.

Formalization of Tasks to Ensure the Safety of Emergency and Explosive Operations in the Mining Industry

“…Therefore, it is of interest to predict the expected tensile strains and to determine the beginning of element failure, i.e. -the beginning of cracking or delamination process at the contact of layers [15][16][17][18][19][20][21][22][23][24][25][26]. The ultimate stresses in the tensile region in the "Geomechanics" program are limited by the tensile strength limit, and they are automatically assumed to be equal to C/5 for elements that do not go into the plastic, and equal to zero for elements that go into the plastic at the previous iteration cycles.…”

Calculation of gas supply pressure using plastic pipes for preventing accidental emissions

“…1). Furthermore, the pressure drop of the gas pipeline section was determined as following [3][4][5]:…”

“…𝑃 -working pressure, MPa; 𝑆𝐷𝑅 -standard dimensional ratio; 𝑎 -coefficient of linear thermal expansion of the pipe material, taken according to the method of SP-42-101-2003 is 2.2 10 -4 . 𝐸 (𝑡𝑒) -creep modulus of pipe material at operating temperature, MPa; ∆ 𝑡 -temperature difference [4][5][6]11]. Fig.…”

“…The key performance indicator of a gas transmission company is the fulfillment of the plan for gas transportation in the given volumes, terms and quality of gas, and the target indicator of the risk management unit in the gas transmission system is the minimum of failures (losses from realized risks) in gas supplies (maximum reliability) [1][2][3]. As a result, technological (production, operational and repair) risks come to the fore, minimizing which requires optimization of the work of structural units responsible for a reasonable assessment of the technical condition, maintenance and repair of facilities, timely renewal of production facilities with minimization of wear and tear of equipment, which is a risk factor in the failure of the gas transmission system [4]. In addition, based on the noted features of gas transportation enterprises, in the risk management block, logistics risks, safety risks, environmental, social and (in a certain aspect) financial risks should play a significant role [5].…”