Vol. 9 6, 2019 p 660-665


Article name, authors, abstract and keyword


Comprehensive method to determine flow areas of perforation damages in subsea pipelines with culverts

Elmir I. Huseynli a, Ramiz A. Eminov b, Arzu E. Ibrahimova b

a Azerbaijan Scientific Research Institute of Water Problems, 69 Moscow Prospect, Baku, AZ1012, Azerbaijan Republic

b Azerbaijan State Oil and Industry University, 20 Azadlig Prospect, Baku, Z1010, Azerbaijan Republic

DOI: 10.28999/2541-9595-2019-9-6-660-665

Abstract: Water crossings are the most vulnerable sections of main pipelines. Underwater pipes are exposed to increased dynamic pressure of bottom currents, bottom nanoses, artificial soil of ballast discharges, aggressive influence of water environment. in the case is complicated by the fact that the material from which the protective construction is made weakens the probe waves and signals from the place where the pipe wall is damaged. The authors suggested an integrated approach in which the main indicators for calculating the area of the end-to-end defect are determined by different methods: 1) distance to the point of occurrence of damage with the help of piezoelements placed with a certain step on the intertube space; 2) pressure at the point of damage by traditional calculation methods, taking into account the pressure measurement results in the pipe, with a known leakage volume. The formula for calculating the live cross-sectional area of the end-to-end damage of the pipe wall laid in the case was obtained.

Keywords: pipeline, end-to-end damage, piezoelectric elements, encasement, pressure, interpipe space, underwater crossing.

For citation:
Huseynli E. I., Eminov R. A., Ibrahimova A. E. Comprehensive method to determine flow areas of perforation damages in subsea pipelines with culverts. Nauka i tehnologii truboprovodnogo transporta nefti i nefteproduktovScience & Technologies: Oil and Oil Products Pipeline Transportation. 2019;9(6):660665.

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