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油井内流体的流动成像需要对非均匀介质进行动态非线性测量,基于油气与水的导电特性和介电特性差异,提出一种电磁成像测量方法,通过在井下激发电磁场对流体流动截面进行扫描测量,经过反演处理,实时成像显示流体分布及流动状况.数值模拟和物理模型实验结果表明,该方法可以获得多相流体流动截面的清晰图像.
Fluid flow imaging in oil wells needs dynamic nonlinear measurement of heterogeneous media. Based on the difference of conductivity and dielectric properties of oil-gas and water, an electromagnetic imaging method is proposed to measure the cross-section of fluid flow by exciting electromagnetic fields downhole After inversion processing, real-time imaging shows the fluid distribution and flow conditions.The numerical simulation and physical model experimental results show that this method can obtain a clear image of multi-phase fluid flow cross-section.