Abstract：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.
李龙祥, 叶永彪, 符方超, 徐濛濛, 曹晨磊. 两千米深水海管涂层清理装备研究[J]. 海洋工程装备与技术, 2018, 5(1): 63-66.
LI Long-xiang, YE Yong-biao, FU Fang-chao, XU Meng-meng, CAO Chen-lei. Research on Deepwater Pipeline Coating Removal Equipment for 2000 m Water Depth. Ocean Engineering Equipment and Technology, 2018, 5(1): 63-66.
1 唐贵福,李东旭,李洋,等. 高压水射流表面清理技术的应用［J］. 清洗世界，2016, 32(5)： 39.
Tang Gui-fu, Li Dong-xu, Li Yang, et al. Application of surface cleaning technology for high pressure water jet ［J］. Cleaning World, 2016, 32(5): 39.
2 陈进娥,何顺利,刘广峰. 我国海洋石油勘探开发装备现状及发展趋势［J］. 油气藏评价与开发, 2012(6)： 67.
Chen Jin-e, Liu Shun-li, Liu Guang-feng. Current situation and development trends of China offshore oil exploration and development equipment ［J］. Reservoir Evaluation and Development, 2016(6): 67.
3 方新强. 深水油气开发工程模式与南海油气开发方案探讨［J］. 石油工程建设，2016, 42(6)： 11.
Fang Xin-qiang. Discussion of deepwater oil and gas development engineering modes and development plan in South China Sea ［J］. Petroleum Engineering Construction, 2016, 42(6): 11.
4 陈勇,潘东民,邓平,等. 高压水清洗技术在海底管道维修中的应用［J］. 石油工程建设，2013, 39(4)： 26.
Chen Yong, Pan Dong-min, Deng Ping, et al. Application of high-pressure water cleaning technology to subsea pipeline repair ［J］. Petroleum Engineering Construction, 2013, 39(4): 26.
5 王宏安. 海底油气管道水下维修技术综述［J］. 科技创新与应用，2016(8)： 143.
Wang Hong-an. An overview of underwater repair technologies for subsea oil and gas pipelines ［J］. Technology Innovation and Application, 2016(8): 143.