井下旋流油水分离器仿真研究  

Research on the Simulation of Downhole Oil-water Cyclone Separator

作　　者：张瑞霞[1] 王继飞[2] 田启忠[1] 刘建新[1] 杨洁[1] 王卫明[1] 

机构地区：[1]胜利油田分公司采油工艺研究院 [2]胜利油田高原石油装备有限责任公司

出　　处：《石油机械》2013年第11期105-109,共5页China Petroleum Machinery

基　　金：中石化科研项目"海上油田同井(组)采注工艺技术研究"(P11018)

摘　　要：针对油田注水开采中存在的采出水过多,增加开采费用且污染环境的问题,提出井下油水分离技术,并对该技术中的井下旋流油水分离器进行了研究。将CFD仿真分析软件作为辅助手段,选择典型的旋流器模型,利用相似准则设计旋流器,对影响其分离效率的多个因素进行仿真模拟。分析结果表明,旋流器的锥段锥角、入口直径、溢流口直径等对其分离效率均有较大的影响,且都不是线性影响,其具体尺寸可通过比较优选后得到;加长尾管段的长度可以提高其分离效率,但是达到一定长度以后继续增加长度对分离效率的影响变弱;当圆柱段的长度与圆柱段的直径相等时,其分离效率最高。There exist some problems with production in water injection wells in oilfields, such as too much produced water, increase of production costs and environmental pollution. Therefore, downhole oil-water separation technology was formulated and the downhole oil-water cyclone separator was studied. The CFD simulation analysis software was used as the supplementary means. The typical cyclone model was selected. The similarity criterion was applied to design the cyclone. A simulation of several factors influencing the separating efficiency of the cyclone was conducted. The analysis shows that the conical section angle, inlet diameter and overflow diameter of the cyclone have remarkable effect on the separating efficiency. Moreover, the effect is nonlinear. The specific dimensions can be obtained after comparison and optimization. Extending liner section length can improve the separating efficien- cy. But the effect of continuing to extend the length on the separating efficiency becomes weak after a certain length is reached. When the length and diameter of the cylindrical section are equivalent to each other, the separating effi- ciency reaches the maximum.

关 键 词：井下油水分离 水力旋流器 仿真 单锥 双锥 分离效率 

分 类 号：TE931[石油与天然气工程—石油机械设备]