scholarly journals Metodologia de decisão estratégica sobre rota de duto de gás, utilizando a tecnologia SIG / Methodology of strategic decisions on gas pipeline route, using GIS technology

2021 ◽  
Vol 7 (12) ◽  
pp. 114688-114717
Author(s):  
Leonardo Pessanha de Azevedo Pereira ◽  
Walber Paschoal da Silva
Keyword(s):  
Gas Pipeline ◽  
Strategic Decisions ◽  
Gis Technology ◽  
Pipeline Route

MONITORING OF THE THERMOABRASIONAL AND ACCUMULATIVE COASTS NEAR THE UNDERWATER GAS PIPELINE ROUTE ACROSS THE BAYDARATSKAYA BAY, KARA SEA

2017 ◽  
Author(s):  
Nataliya Belova ◽  
Nataliya Belova ◽  
Alisa Baranskaya ◽  
Alisa Baranskaya ◽  
Osip Kokin ◽  
...  
Keyword(s):  
Thermal Regime ◽  
Storm Surges ◽  
Gas Pipeline ◽  
The Arctic ◽  
Yamal Peninsula ◽  
Permafrost Degradation ◽  
Nearshore Zone ◽  
Barrier Beach ◽  
Energy Dissipater ◽  
Pipeline Route

The coasts of Baydaratskaya Bay are composed by loose frozen sediments. At Yamal Peninsula accumulative coasts are predominant at the site where pipeline crosses the coast, while thermoabrasional coast are prevail at the Ural coast crossing site. Coastal dynamics monitoring on both sites is conducted using field and remote methods starting from the end of 1980s. As a result of construction in the coastal zone the relief morphology was disturbed, both lithodynamics and thermal regime of the permafrost within the areas of several km around the sites where gas pipeline crosses coastline was changed. At Yamal coast massive removal of deposits from the beach and tideflat took place. The morphology of barrier beach, which previously was a natural wave energy dissipater, was disturbed. This promoted inland penetration of storm surges and permafrost degradation under the barrier beach. At Ural coast the topsoil was disrupted by construction trucks, which affected thermal regime of the upper part of permafrost and lead to active layer deepening. Thermoerosion and thermoabrasion processes have activated on coasts, especially at areas with icy sediments, ice wedges and massive ice beds. Construction of cofferdams resulted in overlapping of sediments transit on both coasts and caused sediment deficit on nearby nearshore zone areas. The result of technogenic disturbances was widespread coastal erosion activation, which catastrophic scale is facilitated by climate warming in the Arctic.

The Mackenzie Valley and Alaska Highway gas pipeline route proposals

Polar Record ◽  
1978 ◽  
Vol 19 (120) ◽  
pp. 282-285
Author(s):  
J. Coombs ◽  
C. Madden
Keyword(s):  
Gas Pipeline ◽  
Pipeline Route

scholarly journals Mathematical Modeling of Unsteady Gas Transmission System Operating Conditions under Insufficient Loading

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1325 ◽  
Author(s):  
Vasyl Zapukhliak ◽  
Lyubomyr Poberezhny ◽  
Pavlo Maruschak ◽  
Volodymyr Grudz ◽  
Roman Stasiuk ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Pressure Fluctuations ◽  
High Amplitude ◽  
Transmission System ◽  
Gas Pipeline ◽  
Operating Conditions ◽  
Amplitude Fluctuations ◽  
Pipeline Route ◽  
Main Gas Pipeline ◽  
System Operating

Under insufficient loading of a main gas transmission system, high-amplitude fluctuations of pressure may occur in it. A mathematical model is proposed to estimate the amplitude of pressure fluctuations in a gas pipeline along its length. It has been revealed that the shutdown of compressor stations along the gas pipeline route has a significant impact on the parameters of the unsteady transient operating conditions. The possibility of minimizing oscillation processes by disconnecting compressor stations is substantiated for the “Soyuz” main gas pipeline.

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

2021 ◽  
Vol 939 (1) ◽  
pp. 012027
Author(s):  
S Khodjaeva ◽  
M Musaev ◽  
Sh Akhmedov
Keyword(s):  
Risk Management ◽  
Information Systems ◽  
Geographical Information Systems ◽  
Transmission System ◽  
Geographical Information ◽  
Total Risk ◽  
Gis Technology ◽  
Risk Probability ◽  
Pipeline Route ◽  
Process Classification

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.

scholarly journals Neolithic pits and Late Bronze Age roundhouses in the Upper Ury Valley, Aberdeenshire

2019 ◽  
Vol 148 ◽  
Author(s):  
Richard Moore ◽  
Claire Lingard ◽  
Melanie Johnson ◽  
Ann Clarke ◽  
Mhairi Hastie ◽  
...  
Keyword(s):  
Bronze Age ◽  
Gas Pipeline ◽  
Late Bronze Age ◽  
Early Neolithic ◽  
North West ◽  
The North ◽  
Pipeline Route ◽  
The Bronze Age ◽  
Small Tributary

Archaeological monitoring of works on a gas pipeline route in Aberdeenshire, north-west of Inverurie, resulted in the discovery and excavation of several groups of Neolithic pits and four Bronze Age roundhouses. The Neolithic pits were concentrated around the Shevock Burn, a small tributary of the Ury, and in the East and North Lediken areas to the north. They produced significant assemblages of Early Neolithic Impressed Ware and of Modified Carinated Bowl. The Bronze Age roundhouses included the heavily truncated remains of a post-built structure near Pitmachie, the remains of a pair of ring ditch structures near Little Lediken Farm, and another ring ditch structure close to Wrangham village.

scholarly journals Remote Study of Aufeis along the ‘Power of Siberia’ Gas Pipeline in the Aldan River Basin

2020 ◽  
Vol 209 ◽  
pp. 06018
Author(s):  
Dmitry D. Nogovitsyn ◽  
Dmitry D. Pinigin ◽  
Nadezhda A. Nikolaeva
Keyword(s):  
Satellite Images ◽  
Gas Pipeline ◽  
Formation Processes ◽  
Small Areas ◽  
South West ◽  
Flow Formation ◽  
Complex Engineering ◽  
Pipeline Route ◽  
The Republic

The ‘Power of Siberia’ gas pipeline route passes through the territories of South-West and South Yakutia, where the natural conditions are characterized by severe climatic, complex engineering geological and geocryological conditions. A variety of environmental conditions are mandatory for construction and operation in different areas with long-term soil and hazardous geocryological processes: debris flow formation, aufeis formation, soil heaving, thermokarst, thermosuffosion. Aufeis formation processes will be of particular importance during the construction of the pipeline. As a degree of their occurrence in the Republic of Sakha (Yakutia), it should be mentioned the Aldan upland. Aufeis occur almost in the majority of local stream valleys as a small areas of ice formations, basically confined to floodplain and riverbed. Aufeis areas had been identified in trace areas by the method of deciphering satellite images within the territory of the hydrogeological zones of the Lena-Amur interfluve. As a result of remote studies, territorial and quantitative distributions in hydrogeological zones have been identified. As a result of the monitoring results the areas of each aufeis are determined and their contours are decoded due to satellite images of recent years (2018-2020).

scholarly journals QRA-Grid: Quantitative Risk Analysis and Grid-based Pre-warning Model for Urban Natural Gas Pipeline

2019 ◽  
Vol 8 (3) ◽  
pp. 122 ◽  
Author(s):  
Shuang Li ◽  
Chengqi Cheng ◽  
Guoliang Pu
Keyword(s):  
Natural Gas ◽  
Risk Analysis ◽  
Gas Pipeline ◽  
Gas Pipelines ◽  
Gis Technology ◽  
Quantitative Risk Analysis ◽  
Natural Gas Pipeline ◽  
Fire And Explosion ◽  
Warning Model ◽  
Grid Based

With the increasing use and complexity of urban natural gas pipelines, the occurrence of accidents owing to leakage, fire, explosion, etc., has increased. Based on Quantitative Risk Analysis (QRA) models and Geographic Information System (GIS) technology, we put forward a quantitative risk simulation model for urban natural gas pipeline, combining with a multi-level grid-based pre-warning model. We develop a simulation and pre-warning model named QRA-Grid, conducting fire and explosion risk assessment, presenting the risk by using a grid map. Experiments show that by using the proposed method, we can develop a fire and explosion accident pre-warning model for gas pipelines, and effectively predict areas in which accidents will happen. As a result, we can make a focused and forceful policy in areas which have some potential defects in advance, and even carry out urban planning once more, rebuilding it to prevent the risk.

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