Open AccessEstimating the effect of seasonally-operating cooling devices during a safe stop of the oil pipeline
Author(s) -
А. У. Якупов,
Д. А. Черенцов,
К. С. Воронин,
Ю. Д. Земенков
Publication year - 2019
Publication title -
izvestiâ vysših učebnyh zavedenij. neftʹ i gaz
Language(s) - English
Resource type - Journals
ISSN - 0445-0108
DOI - 10.31660/0445-0108-2019-3-120-126
Subject(s) - pipeline transport , petroleum engineering , pipeline (software) , viscosity , environmental science , water cooling , thermal , nuclear engineering , engineering , materials science , mechanical engineering , meteorology , environmental engineering , composite material , physics
Conducting thermal calculations of "hot" oil pipelines through which high-viscosity and high-sticking oils are transported is one of the main ones. Determining the rate of cooling of oil in a stopped pipeline is of practical importance. According to the cooling rate, the time to safely stop the "hot" pipeline is calculated. This is the time at which the "hot" oil pipeline doesn’t freeze and the station’s pressure is enough to overcome the shear stresses arising during the cooling f high-viscosity and high-sticking oil. Oil cooling in underground stopped pipelines depends on the temperature of the soil around it. Installed heat stabilizers designed to cool the soil can affect the cooling rate of the "hot" pipeline. We have carried out a numerical experiment using modern tools of mathematical modelling. The experiment showed that the installed soil heat stabilizers near the underground "hot" pipeline have an impact on the process of cooling oil. These stabilizers have reduced the time to safely stop the pipeline.