Parameter selection of hydraulic jack for repair of oil tanks in the Far North conditions

The petroleum industry is a key component of the Russian Federation economy. A large number of reservoirs are used for oil storage, each of which needs timely repair. According to the research results almost half of the accidents are caused by excessive irregularity of reservoir settlement, which causes their premature failure. In order to restore the faultless and serviceable condition of the tanks, it is necessary to carry out repair works, the quality and efficiency of which depends on the used repair equipment. The actual problem is the substantiation of the choice of equipment for repair of tanks, in particular steel tanks of vertical type. The review of different types of tanks was carried out and it showed that vertical steel tanks are the most widespread. One of the ways to eliminate uneven tank settlement is to lift the tank with the help of jacks and form a new base with the removal of the slope. The process of repairing a vertical steel reservoir with a volume of 10000 m3 was considered. The values of the tank mass when filled with liquid petroleum products at 1% of the maximum filling capacity have been obtained. The load value on one lifting device was obtained. The design of the structure of the device and the strength calculation in the program Compass 3D were performed. The most effective type of hoist was determined from the existing ones, and its design was upgraded. The strength calculation showed that the hydraulic elevator is operable under the given conditions.