Packaging, transporting and storing technology of marine flexible pipe

Abstract

The invention discloses a packaging, transporting and storing technology of a marine flexible pipe. According to the packaging, transporting and storing technology, by controlling the temperature in the coiling process and the elliptical ratio existing after coiling, the deformation amount of the marine flexible pipe is controlled, so that the deformation amount of the marine flexible pipe in thelater-period natural cooling and shaping process is greatly reduced, and therefore the performance of the marine flexible pipe is not influenced. The invention further provides a transportation fixingdevice. The transportation fixing device guarantees that the marine flexible pipe is free of damage in the bundling, piling, transporting and hoisting process. The invention further provides a long-term storage technology based on material performance and storage conditions. The long-term storage technology based on the material performance and the storage conditions effectively solves the problems of structure collapse and bending caused by environment temperature change in the long-term storage process of the marine flexible pipe.

Description

technical field [0001] The invention relates to the technical field of pipeline packaging, transportation and storage, in particular to a process for packaging, transportation and storage of marine flexible pipes. Background technique [0002] With the development of offshore oil and gas exploration and development, flexible pipelines have gradually replaced steel pipes for oil and gas exploration due to their good flexibility, high installation efficiency, strong adaptability to marine environments, recyclability, and strong corrosion resistance. Transportation is becoming more and more widely used. [0003] From the completion of manufacturing to the project site, flexible pipes need to go through multiple links such as packaging, transportation, and storage. Problems in each link will have an irreversible impact on the performance and quality of flexible pipes. [0004] At this stage, due to the fact that there are not many manufacturers of marine flexible pipes and la...

AI Technical Summary

Problems solved by technology

[0005] At present, the winding process of the marine flexible pipe only considers the minimum winding radius of the flexible pipe, and does not consider the influence of temperature on the flexible pipe during the winding process. When the temperature of the flexible pipe drops to the ambient temperature, the pipe shrinks and causes deformation

The influence of the ellipsoid ratio of the flexible pipe on the winding pipe after the winding is completed is also not considered, resulting in that when the pipe is laid in the project, the roundness of the flexible pipe cannot be restored; during transportation, due to the packaging and fixing methods of the flexible pipe Incorrect, resulting in damage to marine flexible pipes in the process of bundling, stacking and hoisting, increasing the waste rate of flexible pipes; during the long-term storage of flexible pipes, due to the lack of attention to changes in the ambient temperature, the pipes will collapse and break Bend, affecting the normal use of flexible pipes, resulting in product waste

Images