Acoustic Scanning of Damaged Pipelines in Soil
- Authors: Shagapov V.S.1, Galiakbarova E.V.2, Khusainov I.G.3, Khakimova Z.R.2
-
Affiliations:
- Mavlyutov Institute of Mechanics, Ufa Federal Research Center
- Ufa State Petroleum Technological University
- Sterlitamak Branch of the Bashkir State University
- Issue: Vol 59, No 4 (2018)
- Pages: 724-732
- Section: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/161248
- DOI: https://doi.org/10.1134/S002189441804020X
- ID: 161248
Cite item
Abstract
The dynamics of a pulsed signal propagating in an underground pipeline with a damaged section is investigated. Pressure waves propagating in a linear pipeline filled with a fluid are considered. Due to viscous friction and thermal conductivity, dissipation is taken into account in a thin liquid or gas layer near the wall. It is assumed that the damaged pipeline section is a reflecting surface. Conditions on this surfaces are obtained under the assumption that the rate of liquid leakage during wave propagation through the damaged section is determined by the permeability of the soil. It is shown that in weakly permeable soils, signals do not provide full information on damage, and in well-permeable soils, only short (high-frequency) pulsed signals can be used to detect damage.
About the authors
V. Sh. Shagapov
Mavlyutov Institute of Mechanics, Ufa Federal Research Center
Author for correspondence.
Email: Shagapov@rambler.ru
Russian Federation, Ufa, 450054
E. V. Galiakbarova
Ufa State Petroleum Technological University
Email: Shagapov@rambler.ru
Russian Federation, Ufa, 450062
I. G. Khusainov
Sterlitamak Branch of the Bashkir State University
Email: Shagapov@rambler.ru
Russian Federation, Sterlitamak, 453103
Z. R. Khakimova
Ufa State Petroleum Technological University
Email: Shagapov@rambler.ru
Russian Federation, Ufa, 450062
Supplementary files
