中文摘要：

多相体系水合物堵管规律作为实现水合物风险控制的关键,一直备受流动安全保障行业的关注.本文结合众多研究者的实验研究及理论分析,总结了部分实验装置及实验方式,概述了油基体系、水基体系及部分分散体系等多相流动体系的水合物堵管规律,并对后续研究的开展提出建议.本文指出不同体系水合物的生长及堵管机理不同,油基体系堵管主要受聚并、壁面黏附及着床等机理的控制;水基体系堵管主要受着床机理控制,堵管趋势最低;部分分散体系堵管主要受膜生长机理控制,堵管趋势最高.建议下一步工作可围绕以下几点展开：油基体系壁面黏附及着床的理论建模,水基体系水合物生长模型的建立,部分分散体系自由水的量化表征以及考虑不同多相流流型对堵管规律的影响.

英文摘要：

It is the hydrate plugging mechanisms of multiphase flow that are the key to implement hydrate risk management, which have always been the focus of flow assurance industry. This paper reviews the experiments and principle analysis conducted by many researchers, and summarizes types of experimental equipment and methods, and then concludes different mechanisms for hydrate plugging in oil-dominated system, water-dominated system and partially dispersed system, while giving out some suggestions for further researches. Because of the lack of field data and the difficulty of conducting field plugging experiments, at present, designing experimental apparatus is the common solution around the world, such as autoclave and flowloop, to undertake simulation study, with the purpose to investigate plugging mechanisms. Stirring and rocking are two main methods for autoclaves to simulate pipe flow, which results in the flow characters of autoclaves is different from the real pipe flow. So flowloops are superior to autoclaves in simulating pipe flow, while some visual autoclaves （sapphire cell and so on） are better than flowloops in direct visual observation. In micro level, FBRM and PVM could provide particle distribution and behavior information. MMF apparatus could measure cohesive force between particles and adhesive force between particles and pipe walls. These micro level apparatus would help to estimate the tensile strength and the size of aggregates, which are meaningful to predict rheological properties of the fluid and the pressure drop of the pipeline. More efforts should be done on the combination of micro measurement and macro measurement, and finding a better way for autoclaves to simulate pipe flow more accurately and a better way for flowloops to improve visual observation. Plugging mechanism will be different when it comes to different multiphase systems. For oil-dominated system, which has been researched for the longest time and has the most mature theoretical system, agglomeration, adhesion to pipe walls