FIELD: ship building.
SUBSTANCE: invention relates to ship building, particularly to a pipeline laying from a pipelaying vessel. Proposed is a method of a pipeline laying from vessel (103) following a S-shaped trajectory. Stinger (104) is located at the end of vessel (103) in the direction from the vessel, the pipeline passes onto stinger (104) while laying from vessel (103). Inclination of the pipeline to the horizon increases when passing along stinger (104) and after passing stinger (104) until reaching an inflection point, which is specified at a distance from the end of stinger (104) and in which maximum inclination of the pipeline to the horizon is provided. Then inclination of the pipeline is reduced until reaching the sea bottom. On stinger (104) guiding limitations of the pipeline lateral displacements relative to stinger (104) are used, and vessel (103) with stinger (104) change their positions while laying the pipeline to incline stinger (104) longitudinal axis relative to the trajectory of already laid onto the sea bottom pipeline (101). Changing positions of vessel (103) and stinger (104) while laying the pipeline includes rotation of vessel (103) and stinger (104) around the vertical axis, which is selected passing through the inflection point or an adjacent to it one. Also proposed are versions of the device for a pipeline laying from a vessel.
EFFECT: technical result is improvement of efficiency and reliability of the method and the device for a pipeline laying from a vessel.
22 cl, 8 dwg
