Influence of Burial Depth for Natural Gas Pipeline Leakage in Flat Country

doi:10.11885/j.issn.1674-5086.2013.03.14.01

Abstract

Abstract:

Aiming at the leak and diffusion problem of the buried gas pipeline，the three-dimensional numerical simulation
is carried out for the natural gas pipeline leakage in flat area with different buried depth. According to the principle of single
variable in the same climate conditions，we take the buried depth as a single variable for different conditions，and study the
effect of buried depth of 1.4 m and 2.0 m on the leakage underground，the surface，and in the air. The results show that the
buried depth has a great influence on leakage. The results from 0 conditions are great error compared with those of buried depth
of 1.4 m and 2.0 m conditions. The buried depth is inversely proportional to the diffusion range，leakage rate，mass fraction
and high concentration range. The shallower the buried depth，the bigger the diffusion range，leakage rate，mass fraction and
high concentration range.

Key words: natural gas leak, three dimensional buried pipeline, deathtrap, burial depth, numerical simulation

Ma Guiyang1, Wang Xin1*, Li Dan2, Liu Bingbing3, Huang Tenglong3. Influence of Burial Depth for Natural Gas Pipeline Leakage in Flat Country[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.03.14.01.

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