水平井两相流动电磁全息测量敏感场（英文）

发布时间：2018-01-16 06:18

本文关键词：水平井两相流动电磁全息测量敏感场（英文）　出处：《Applied Geophysics》2017年01期 　论文类型：期刊论文

【摘要】：电磁全息测量数据包含两种模态,因此重建流动图像也需采用"双模"融合的敏感场。首先,通过电磁全息探测物理场分析,结合层析成像数学理论Radon反变换,从定解问题推导了全息测量敏感场函数表达式。其次,将有限元仿真计算得到的全息测量敏感场应用于模拟流动试验和全息成像。结果表明,基于复电位φ关于极径r的偏导数的全息测量敏感场契合了Radon反变换的数学表达,且充分体现了幅度、相位测量敏感性;反演所得流动图像更加吻合实际流型。全息测量敏感场构建有效克服了传统单模敏感场在计算精度和计算效率等方面的局限性。
[Abstract]:The holographic measurement sensitive field obtained by finite element simulation is applied to analog flow test and holographic imaging . The results show that the holographic measurement sensitive field based on the partial derivative of the complex potential 蠁 with respect to the pole diameter r is applied to the simulated flow test and the holographic imaging . The results show that the holographic measurement sensitive field based on the partial derivative of the complex potential 蠁 has more coincidence with the actual flow pattern . The holographic measurement sensitive field construction effectively overcomes the limitation of the traditional single mode sensitive field in calculation precision and calculation efficiency .

【作者单位】：中国石油大学(北京)油气资源与探测国家重点实验室;
【基金】：supported by the National Science and Technology Major Project(No.2011ZX05020-006)
【分类号】：TE31;P631.325
【正文快照】： Introductionbeen developed by considering the contrast between theconductivity and permittivity of the media to distinguishreal-time multiphase fl ow patterns(Wang and Wu,2009;Electromagnetic imaging establishes the mediumLiu and Wu,2012;Cai and Wu,2013b

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