测井技术2025，Vol.49Issue(3)：419-429,11.DOI:10.16489/j.issn.1004-1338.2025.03.010
带等位电极的电导含水率传感器仿真分析与实验
Simulation Analysis and Experiment of Conductivity Water Cut Meter with Equipotential Electrode
摘要
Abstract
The impedance water cut meter is a longitudinal array conductivity sensor,and the structure and parameters of the sensor have an important impact on the performance.Because the walls at both ends of the impedance water cut meter are metal structures,there is a phenomenon that the excitation electrode current is shunted along the radial direction.When measuring the total water value,the uncertainty of the oil-water interface position leads to differences in the magnitude of the excitation current when measuring the total water value and the mixed phase value.An optimized design model of a five-electrode conductivity water cut meter with equipotential electrodes is proposed.Based on the theoretical model of electric field distribution and current density distribution,the electric field distribution and current density of the sensor under different parameters are simulated and analyzed by using finite element simulation software,and the effects of parameters such as the length of the insulation domain,the width of the electrode ring,and the position of the equipotential electrode on the performance of the sensor are studied.According to the simulation results,the optimal parameters of the sensor are determined,and the static principle experiment of the sensor is carried out.The simulation results show that the shunt of the excitation current can be effectively eliminated by adding the equipotential electrode,and the excitation current is consistent with the total water value when the miscible value is measured.The results of static principle experiments show that the measurement accuracy of the five-electrode conductivity water cut meter is effectively improved under the condition of high water content.The existence of equipotential electrode can effectively improve the measurement accuracy of the sensor,which provides an effective method for the optimal design of the sensor.关键词
含水率/电导传感器/等位电极/有限元分析/电流分流/油水界面Key words
water cut/conductivity sensor/equipotential electrode/finite element analysis/current shunt/oil water interface分类
天文与地球科学引用本文复制引用
姜志诚,刘兴斌,马越,韩文强,刘肖健..带等位电极的电导含水率传感器仿真分析与实验[J].测井技术,2025,49(3):419-429,11.基金项目
国家自然科学基金项目"网络模型的智能分层注水井压力脉冲数据传输方法"(52174021) （52174021）
