油气水多相流电容层析成像灵敏场仿真研究

摘要

In connection with the accurate measurement of the gas-water multiphase flow problems of the sub-content, we use the electrical capacitance tomography technology to complete the problem. Simulation analysis of the sensitivity characteristics of the electrode using finite element analysis method to explore the characteristics of measuring the ＂soft field＂ ; combination of sensitivity analysis, image reconstruction unit filter simulation comparison, get the unit filtering the image reconstruction greatly improved. So the description of the use of capacitive tomography technique to measure the sub-content program is feasible.%针对准确测量油气水多相流各分相含量的问题，采用了电容层析成像技术完成油气水多相流各分相含量测量。通过仿真分析了采用有限元分析方法的电极间的灵敏度特性，探讨了测量中的”软场”特性；结合灵敏度的分析，对单元滤波图象重建进行了仿真对比，得到单元滤波对图像重建有很大的改善。说明采用电容层析成像技术测量各分相含量的方案是可行的。