中心管分流式含水率计数值模拟研究  

Numerical Simulation Study of the Divided-flow Water Cut Meter for Central Pipes

作　　者：杨静嘉 YANG Jingjia

机构地区：[1]澳大利亚新南威尔士大学

出　　处：《油气田地面工程》2018年第11期17-20,共4页Oil-Gas Field Surface Engineering

摘　　要：为解决特高含水率下含水率计测量精度相对不高的问题,研发了中心管分流式含水率计。应用有限元分析软件模拟井筒采出液高含水、不同流动情况下在分流式含水率计内的持水率及含水率计进液口油水分布,并与室内实验结果进行比较。对比结果表明:油相主要以环状流形态进入分流式含水率计内部流动通道,RNG k-ε湍流模型适用于分流式含水率计内持水率的仿真计算,当含水率在80%以上,流量在10～60 m3/d时,持水率仿真结果与室内实验值最大相对误差仅3.03%,此结果为中心管分流式电导含水率计结构模型优化提供了参考依据。In order to solve the problem that the water cut metering accuracy is relative low when the water cut is extremely high,the divided-flow water cut meter for central pipes is developed.The finite element analysis software is used to simulate the water holding rate and the oil-water distribution of the inlet with high water content and different flow conditions,and then the results are compared with the laboratory results.The comparison results show that the oil phase mainly enters the internal flow channel of the divided-flow water cut meter in the form of annular flow,and the RNG k-εturbulence model applies to the simulation calculation of water holding rate by the divided-flow water cut meter.When water cut is above 80%and flow rate is 10 to 60 m3/d,the maximum relative error between the simulation results and the laboratory values is only 3.03%.The results provide reference for the structure model optimization of the conductivity divided-flow water cut meter for central pipes.

关 键 词：含水率计 数值模拟 持水率 湍流模型 

分 类 号：TE937[石油与天然气工程—石油机械设备]