Predicting the thermal impact of an underground oil pipeline on the permafrost zone using mathematical modeling

In underground oil pipelines constructed on permafrost, where oil is transported with heating, in addition to the processes associated with seasonal thawing and freezing of soils, the thawing of permafrost from the thermal effect of the pipeline may occur. During the thawing and freezing of the permafrost zone, ground soil heaving and subsidence of, ice formation, waterlogging of the pipeline route are possible. As a result, there is a probability of spatial displacements, section buckling, pipeline deformations, which may ultimately lead to emergencies. The paper investigates the thermal effect of an oil pipeline on the permafrost zone using mathematical models. Stefan’s mathematical model is studied. It is proposed to use an oil pipeline with thermal insulation and to take measures in advance to prevent emergencies caused by oil spills and to reduce damage as much as possible.

Egorova T. R., Kychkina V. G., Kolesov A. E. Predicting the thermal impact of an underground oil pipeline on the permafrost zone using mathematical modeling. MIAB. Mining Inf. Anal. Bull. 2022;(10-1):205—213. [In Russ]. DOI: 10.25018/0236_1493_2022_101_0_205.

Egorova T. R.¹, Head of Laboratory, e-mail:: tuyaruslanovna@mail.ru, ORCID ID: 0000–0002–7117–9218;
Kychkina V. G.¹, Lecturer, e-mail: kychkina.v.g@gmail.com, ORCID ID: 0000–0003–1419–3715;
Kolesov A. E.¹, Cand. of Phys. and Mathem. Sci., Docent Faculty of Geology and Survey, e-mail: Ae.kolesov@s-vfu.ru, ORCID ID: 0000–0001–9969–1195;
¹ M. K. Ammosov North-Eastern Federal University, 677000, Yakutsk, Russia.

Egorova T. R., e-mail:: tuyaruslanovna@mail.ru.

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