非常规油气田多管旋流装置的分离性能研究

针对非常规油气田开采中产能持续降低导致分离失效的问题，设计一种新型多管旋流装置，采用数值模拟方法，对比研究单管和多管旋流装置分离性能。研究表明:多管旋流装置压降率较单管旋流器无明显变化，能耗基本相同；入口流量降低时，多管旋流装置能显著提高中大砂粒分级效率，粒径≥10 μm分级效率可提高35%；入口流量由5 m3/h降为1 m3/h时，多管旋流装置分离效率降幅仅为9.2%。在非常规油气田开采中，多管旋流装置能有效避免产能降低所带来的分离失效。

Research on Separation Performance of Multi-Tube Hydrocyclone Device in Unconventional Oil and Gas Field

Aiming at the problem of separation failure caused by the continuous reduction of productivity in unconventional oil and gas field exploitation， a new type of multi-tube hydrocyclone device was designed， and the separation performance of single-tube/multi-tube hydrocyclone device was comparatively studied by numerical simulation method. The study shows that the pressure drop rate and energy consumption of the multi-tube hydrocyclone device are almost the same with that of the single-tube hydrocyclone. When the inlet flow rate is reduced， the multi-tube hydrocyclone device can significantly improve the classification efficiency of medium and large grained sand particles， and the classification efficiency can be increased by 35% when the particle size is greater than or equal to 10 μm. When the inlet flow rate is reduced from 5 m3/h to 1 m3/h， and the separation efficiency of the multi-tube hydrocyclone device is only reduced by 9.2%. Therefore， in the exploitation of unconventional oil and gas fields， the multi-tube hydrocyclone device can effectively avoid the separation failure caused by the reduction of productivity.