海底单重保温管结构及其应用

与陆上管道有所不同，海底油气管道常常需要采取保温措施，以避免由于流体温降过大而引起的各种操作问题，海底管道保温结构通常分为单重和双重钢管保温结构。

Single-steel Pipe Thermal Insulation Systems for Subsea Pipelines and Their Applications

In order to avoid various operational problems due to the excessive temperature drop of fluid,it is often necessary to thermally insulate subsea oil and gas pipelines. Thermal insulation coating systems for subsea pipelines can be classified as single and double-steel pipe insulation systems. This paper emphatically introduces a number of commonly used foam insulation materials,nonmetal protective coating materials, and several typical single-steel pipe thermal insulation coating systems used in overseas subsea oil and gas pipelines. The feasibility that the single-steel pipe insulation coating system may be used in Chinese offshore oil field is discussed. Economical comparison between single and double-steel pipe insulation coating systems is performed.