复配型水合物阻聚剂在模拟循环管路内阻聚性能研究

Anti-agglomerating performance of compound hydrate anti-agglomerant in a dynamic loop apparatus

利用1套近中试规模的模拟水合物循环管路,系统考察了自行开发的复配型水合物阻聚剂在油水体系内的阻聚性能。评价结果表明,复配型水合物阻聚剂在初始含水率为5%~15%的（柴油＋水＋天然气）体系中具有良好的阻聚性能,可有效阻止水合物颗粒间的聚积,最终形成均匀稳定的水合物浆液。另外,由不同时间的停输/重启实验可知（2、4、8 h）,水合物浆液表现出触变性流体特征,重启过程中未发现水合物颗粒的沉积现象。

The anti-agglomerating performance of a kind of self-developed compound hydrate anti-agglomerant is studied by using a set of flow-loop apparatus for simulated hydrate. The experimental results indicate that the compound hydrate anti-agglomerant has a good anti-agglomerating performance in diesel oil-water-natural gas system with initial water cuts ranging from 5% to 15%,forming a stable hydrate slurry system. At the same time,the shutdown / restart experiments suggest that such hydrate slurry exhibits thixotropic behavior with increasing shutting-down time（ 2 h,4 h and 8 h）. There is no deposition phenomenon of hydrate particles.