TENSIONER FOR UNDERWATER LAYING OF UMBILICAL CABLES AND PIPES OF VARIOUS DIAMETERS Russian patent published in 2024 - IPC F16L1/23 

FIELD: oil, gas and coke-chemical industry.

SUBSTANCE: invention relates to service equipment of oil and gas industry, which provides for performance of offshore operations of installation of various assemblies of underwater hydrocarbon production system. Tensioner for underwater laying of umbilical cable and pipes includes a bearing frame, a system of drives, a movable guide frame. Upper caterpillar track with one row of caterpillar chain is installed on movable guide frame, with possibility of movement of upper caterpillar track. Lower caterpillar track with two rows of caterpillar chain is installed on the bearing frame. Caterpillars are located parallel to each other and form a transport axis between them. Movable guide frame is configured to adjust radial deflection by means of drives. Bearing frame may contain guides of inlet and outlet rollers of pipes, each equipped with two guides made with possibility of horizontal movement. Vertical guides of each of the rollers are made with possibility of radial deflection and rotation.

EFFECT: invention makes it possible to increase the sector of installation and extraction of laid pipes for their transportation to the sea bottom, as well as to reduce risks of pipe damage and to improve uniformity and safety during their tensioning.

3 cl, 11 dwg