摘要
文章介绍了经典的含水率测量模型Maxwell和Begovich & Watson,分析两模型之间存在的差异,进行了室内静态试验和模拟井动态试验,静态实验近于模拟环状流,动态实验接近泡状流。动、静态实验结果表明:阻抗式含水率计在测量含水率时不受矿化度和流型的影响或受其影响很小。实验结果同时证明了所采用的阻抗传感器的含水率相对响应与持水率存在线性关系,并且较为接近Begovich & Watson测量模型。动态实验结果还表明,在低流量下阻抗传感器能够体现滑脱速度的影响,因此实际应用中对于阻抗式含水率计应通过动态实验来建立仪器的含水率测量模型。
Maxwell water cut measuring model and Begovich&Watson water cut measuring model are introduced,and the differences between the two models are analyzed.The experimental results of static and dynamic tests are given.Static test borders on imitating annular flow and dynamic test borders on imitating bubble flow.The test results of static and dynamic show that the water cut relative response has the linear relationship with the water holdup and the linear relationship is hardly or less affected by fluid salinity,temperature and flow regime.And the relationship between the water cut relative response and the holdup approaches to Begovich&Watson water cut measuring model.The actual water cut measuring model of the impedance water cut meter should be gotten from the dynamic test because the static test can't reveal the slippage effect.
出处
《石油仪器》
2007年第3期45-46,49,共3页
Petroleum Instruments
