深水指状分离器分离效果研究

Study on Separation Effect of Deep Water Finger Separator

耿耿

GENG Geng

中国石油化工股份有限公司上海海洋油气分公司工程院, 上海 200120

Engineering Institute of Shanghai offshore Oil & Gas Company, SINOPEC, Shanghai 200120, China

为确定一种在深水能实现高效分离的指状分离器结构，建立了一套包含液塞发生器和电导探针数采程序的气液两相流试验系统，并以分离效率和气相出口含水率为评价标准，探究了不同分离器结构在不同表观气速下对不同液塞的分离效果。结果表明：入口不连通气管结构分离效果优于入口连通结构，立管加高、大存储段容积结构能改善液塞分离效果；加高立管或增大存储段容积可以显著改善入口连通气管结构的分离效果，而对入口不连通结构分离效果影响不明显；入口连通气管、立管加高、大存储段容积结构在小表观气速下能达到极好的分离效果。入口连通气管、立管加高、大存储段容积结构可视为一种深水高效指状分离器。

In order to determine a finger separator structure capable of high-efficiency separation in deep water, a gas-liquid two phase flow experimental system including a liquid plug generator and probes data acquisition system was established to investigate the influence of different separator structures on separation performance with the evaluation standard of separation efficiency and gas outlet water content. Results show that the separation effect of non-connected inlet is better than that of connected inlet. Riser heightening and large storage volume structures can improve the liquid plug separation effect. Increasing the riser or the storage section volume the performance of connected inlet structure can improve a lot, while the separation effect is not obvious to non-connected inlet structure. The connected inlet, the riser heightening and the large storage volume structure can achieve excellent separation effect at a low superficial gas velocity. The connected inlet, the riser heightening and the large storage volume structure can be consider as a deep water efficient finger separator.

https://doi.org/10.3969/j.issn.1008-2336.2018.04.084