Transneft Kama Region has completed laying the Almetyevsk – Nizhny Novgorod petroleum products trunk pipeline (PPTP) standby leg in an underwater trench via the Kama River in the Republic of Tatarstan. Such large-scale works – taking into account the length of the underwater section – were carried out at the facilities of the Transneft system for the first time in fifteen years.
The considerable length of the section for underwater operations makes this project unique in its own way – the width of the water barrier, taking into account the river line, reached 5.6 km. The process of pulling took 8 days, about 80 workers were involved, about 30 pieces of equipment were used.
Laying the pipeline at the intersection with the Kama River was carried out using a mechanized method – pulling. Before that, a continuous lining (covering) of the siphon strings with wooden laths was made in order to protect the pipeline insulation from mechanical damage when dragging in the trench, then cast iron adulterants were installed, the total weight of which exceeded one thousand tons.