采出液粘度对井下旋流除砂器内流特性及分离性能的影响  

Viscosity Effect of Produced Liquid on Flow Characteristics and Separating Property within Downhole Cyclone Desander

作　　者：闫月娟[1] 王尊策[1] 徐艳[1] 李森[1] 张井龙[1] 

机构地区：[1]东北石油大学机械科学与工程学院

出　　处：《化工机械》2014年第4期505-509,共5页Chemical Engineering & Machinery

基　　金：国家自然科学基金资助项目(11172061);国家科技支撑计划资助项目(2012BAH28F03);黑龙江省教育厅基金资助项目(KY120444)

摘　　要：针对井下工况设计了集螺旋片导流、旋流除砂和沉降除砂为一体的新型单出口井下旋流除砂器结构。基于混合模型和雷诺应力湍流模型,针对采出液粘度对内流特性及分离性能的影响进行了数值模拟。结果表明,采出液粘度在1.5～20.0mPa·s范围内变化,对旋流除砂器流场切向速度影响最大,而对轴向速度和径向速度的影响并不大,切向速度和沉降段轴向滑移速度随采出液粘度的增加而急剧下降。随着采出液粘度增加,分离效率急剧下降,甚至失效,压力降也会随之减小。A new cyclone desander which boasting of single outlet and having spiral deflectors,cyclone desanding and the sediment separation integrated. Based on both mixed model and Reynolds stress turbulence model,having viscosity effect of produced liquid on flow characteristics and separating property simulated shows that the produced liquid＇s viscosity ranging from 1. 5 to 20 mPa. s affects the tangential velocity greatly but does less on both axial and radial velocities; and both tangential velocity and axial slip velocity in settling section drops sharply with the increase of viscosity of the produced liquid; and viscosity increase of the produced liquid makes separating efficiency drop sharply or becomes invalid together with the pressure drop.

关 键 词：旋流除砂器 旋流除砂 采出液粘度 流场分布 数值模拟 

分 类 号：TQ051.8[化学工程]