分析国内现有海管涂层清理装备在浅水海管维修中的应用，调查国际上现有的常用深水海管涂层清理装备，从实用性和安全性出发研究2000 m深水海管涂层清理装备的选型。对比水上高压水和水下高压水两种作业模式，结合国内海上油气管道维修的实际需求，选择合适的高压水泵类型，确定2000 m深水海管涂层清理装备的类型，并说明配备2000 m深水海管涂层清理装备技术的重要意义。
The current status of pipeline coating removal equipment suitable for in-situ pipeline repair in shallow water in China is discussed, and a survey is presented on state-of-the-art equipment for deepwater operations from oversea suppliers. Selection of equipment configurations for operations in 2000 m water depth is conducted with considerations in practicality and safety perspectives. Based on the actual requirements from China's offshore oil and gas pipeline inspection, maintenance and repair（IMR） operations, a thorough comparison between deck-mounted and subsea high pressure water pumps work model is carried out to identify the ideal equipment configuration for pipeline coating removal in 2000 m water depth. We also highlight the significance of acquisition of such equipment and technology.
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