| abstract |
[Subject] The present invention relates to a structure of a composite flexible pipe for transporting crude oil and natural gas, a method for laying it, and a method for transporting crude oil or natural gas. By using pipelines that are free of corrosion concerns and have excellent acid resistance and acid gas barrier properties, it provides a method of safely transporting crude oil or natural gas without leaking hydrogen sulfide gas, carbon dioxide, or hydrocarbon gas to the external environment. [Solution] A transportation method, which is a method of transporting crude oil or natural gas through a pipeline including a multilayer structure having at least one barrier resin layer containing ethylene-vinyl alcohol copolymer resin as a main component; A pipeline for the method of transport; and a method of laying the pipeline. |