摘要
基于Fluent软件,模拟了聚合物溶液在分层注聚配注器环形空间的流动过程及流动场。计算结果显示建立的分层注聚配注器环空流道模型能很好地反映实际工作状态。带环切槽的环形空间进、出口端具有较好的节流作用,对聚合物的限流阻力大,随着配注心长度的增加,节流压差增大,可满足不同层、不同配注量的要求。聚合物溶液在所设计的配注器内的流动比较平稳,可很好地防止机械剪切作用,有效地减少了聚合物溶液的粘度损失,确保注聚过程的粘度保留率。
Based on the Fluent software, the flowing process and flow field of the polymer solution in the annulus of the separate-layer polymer injection allocator were simulated. The calculations show that the established model of the annular flow channel of the separate-zone polymer injection allocator can well reflect the real operating conditions. The entrance and exit ends of the ringed grooving annulus have a good effect of flow regulation as well as a strong resistance to polymer entry restriction. With the increase of the length of the injection allocator core, the regulation pressure differential will go up, which can meet the requirement of different layers and different amounts of injection allocation. The polymer solution flows stably and evenly in the designed injection allocator, thus preventing mechanical shearing very well, reducing the viscosity loss of polymer solution effectively and ensuring the viscosity retention rate in the process of polymer injection.
出处
《石油机械》
北大核心
2009年第10期7-10,96,共4页
China Petroleum Machinery
基金
湖北省国际合作项目"多相流下的深井井下工具的机理
结构及动态分析与仿真"(G200512001)
长江大学基金项目"深井井下工具的机理
结构与仿真"(07Z0507)
关键词
分层注聚配注器
环空
聚合物
流动
粘度保留率
separate-layer polymer injection allocator, annulus, polymer, flow, viscosity retention rate
